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Finkelstein JL, Cuthbert A, Weeks J, Venkatramanan S, Larvie DY, De-Regil LM, Garcia-Casal MN. Daily oral iron supplementation during pregnancy. Cochrane Database Syst Rev 2024; 8:CD004736. [PMID: 39145520 PMCID: PMC11325660 DOI: 10.1002/14651858.cd004736.pub6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/16/2024]
Abstract
BACKGROUND Iron and folic acid supplementation have been recommended in pregnancy for anaemia prevention, and may improve other maternal, pregnancy, and infant outcomes. OBJECTIVES To examine the effects of daily oral iron supplementation during pregnancy, either alone or in combination with folic acid or with other vitamins and minerals, as an intervention in antenatal care. SEARCH METHODS We searched the Cochrane Pregnancy and Childbirth Trials Registry on 18 January 2024 (including CENTRAL, MEDLINE, Embase, CINAHL, ClinicalTrials.gov, WHO's International Clinical Trials Registry Platform, conference proceedings), and searched reference lists of retrieved studies. SELECTION CRITERIA Randomised or quasi-randomised trials that evaluated the effects of oral supplementation with daily iron, iron + folic acid, or iron + other vitamins and minerals during pregnancy were included. DATA COLLECTION AND ANALYSIS Review authors independently assessed trial eligibility, ascertained trustworthiness based on pre-defined criteria, assessed risk of bias, extracted data, and conducted checks for accuracy. We used the GRADE approach to assess the certainty of the evidence for primary outcomes. We anticipated high heterogeneity amongst trials; we pooled trial results using a random-effects model (average treatment effect). MAIN RESULTS We included 57 trials involving 48,971 women. A total of 40 trials compared the effects of daily oral supplements with iron to placebo or no iron; eight trials evaluated the effects of iron + folic acid compared to placebo or no iron + folic acid. Iron supplementation compared to placebo or no iron Maternal outcomes: Iron supplementation during pregnancy may reduce maternal anaemia (4.0% versus 7.4%; risk ratio (RR) 0.30, 95% confidence interval (CI) 0.20 to 0.47; 14 trials, 13,543 women; low-certainty evidence) and iron deficiency at term (44.0% versus 66.0%; RR 0.51, 95% CI 0.38 to 0.68; 8 trials, 2873 women; low-certainty evidence), and probably reduces maternal iron-deficiency anaemia at term (5.0% versus 18.4%; RR 0.41, 95% CI 0.26 to 0.63; 7 trials, 2704 women; moderate-certainty evidence), compared to placebo or no iron supplementation. There is probably little to no difference in maternal death (2 versus 4 events, RR 0.57, 95% CI 0.12 to 2.69; 3 trials, 14,060 women; moderate-certainty evidence). The evidence is very uncertain for adverse effects (21.6% versus 18.0%; RR 1.29, 95% CI 0.83 to 2.02; 12 trials, 2423 women; very low-certainty evidence) and severe anaemia (Hb < 70 g/L) in the second/third trimester (< 1% versus 3.6%; RR 0.22, 95% CI 0.01 to 3.20; 8 trials, 1398 women; very low-certainty evidence). No trials reported clinical malaria or infection during pregnancy. Infant outcomes: Women taking iron supplements are probably less likely to have infants with low birthweight (5.2% versus 6.1%; RR 0.84, 95% CI 0.72 to 0.99; 12 trials, 18,290 infants; moderate-certainty evidence), compared to placebo or no iron supplementation. However, the evidence is very uncertain for infant birthweight (MD 24.9 g, 95% CI -125.81 to 175.60; 16 trials, 18,554 infants; very low-certainty evidence). There is probably little to no difference in preterm birth (7.6% versus 8.2%; RR 0.93, 95% CI 0.84 to 1.02; 11 trials, 18,827 infants; moderate-certainty evidence) and there may be little to no difference in neonatal death (1.4% versus 1.5%, RR 0.98, 95% CI 0.77 to 1.24; 4 trials, 17,243 infants; low-certainty evidence) or congenital anomalies, including neural tube defects (41 versus 48 events; RR 0.88, 95% CI 0.58 to 1.33; 4 trials, 14,377 infants; low-certainty evidence). Iron + folic supplementation compared to placebo or no iron + folic acid Maternal outcomes: Daily oral supplementation with iron + folic acid probably reduces maternal anaemia at term (12.1% versus 25.5%; RR 0.44, 95% CI 0.30 to 0.64; 4 trials, 1962 women; moderate-certainty evidence), and may reduce maternal iron deficiency at term (3.6% versus 15%; RR 0.24, 95% CI 0.06 to 0.99; 1 trial, 131 women; low-certainty evidence), compared to placebo or no iron + folic acid. The evidence is very uncertain about the effects of iron + folic acid on maternal iron-deficiency anaemia (10.8% versus 25%; RR 0.43, 95% CI 0.17 to 1.09; 1 trial, 131 women; very low-certainty evidence), or maternal deaths (no events; 1 trial; very low-certainty evidence). The evidence is uncertain for adverse effects (21.0% versus 0.0%; RR 44.32, 95% CI 2.77 to 709.09; 1 trial, 456 women; low-certainty evidence), and the evidence is very uncertain for severe anaemia in the second or third trimester (< 1% versus 5.6%; RR 0.12, 95% CI 0.02 to 0.63; 4 trials, 506 women; very low-certainty evidence), compared to placebo or no iron + folic acid. Infant outcomes: There may be little to no difference in infant low birthweight (33.4% versus 40.2%; RR 1.07, 95% CI 0.31 to 3.74; 2 trials, 1311 infants; low-certainty evidence), comparing iron + folic acid supplementation to placebo or no iron + folic acid. Infants born to women who received iron + folic acid during pregnancy probably had higher birthweight (MD 57.73 g, 95% CI 7.66 to 107.79; 2 trials, 1365 infants; moderate-certainty evidence), compared to placebo or no iron + folic acid. There may be little to no difference in other infant outcomes, including preterm birth (19.4% versus 19.2%; RR 1.55, 95% CI 0.40 to 6.00; 3 trials, 1497 infants; low-certainty evidence), neonatal death (3.4% versus 4.2%; RR 0.81, 95% CI 0.51 to 1.30; 1 trial, 1793 infants; low-certainty evidence), or congenital anomalies (1.7% versus 2.4; RR 0.70, 95% CI 0.35 to 1.40; 1 trial, 1652 infants; low-certainty evidence), comparing iron + folic acid supplementation to placebo or no iron + folic acid. A total of 19 trials were conducted in malaria-endemic countries, or in settings with some malaria risk. No studies reported maternal clinical malaria; one study reported data on placental malaria. AUTHORS' CONCLUSIONS Daily oral iron supplementation during pregnancy may reduce maternal anaemia and iron deficiency at term. For other maternal and infant outcomes, there was little to no difference between groups or the evidence was uncertain. Future research is needed to examine the effects of iron supplementation on other maternal and infant health outcomes, including infant iron status, growth, and development.
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Affiliation(s)
| | - Anna Cuthbert
- Cochrane Pregnancy and Childbirth Group, Department of Women's and Children's Health, University of Liverpool, Liverpool, UK
| | - Jo Weeks
- Cochrane Pregnancy and Childbirth Group, Department of Women's and Children's Health, University of Liverpool, Liverpool, UK
| | | | - Doreen Y Larvie
- Division of Nutritional Sciences, Cornell University, Ithaca, New York, USA
| | - Luz Maria De-Regil
- Multisectoral Action in Food Systems Unit, World Health Organization, Geneva, Switzerland
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Mudasir S, Muktar E, Oumer A. The practice of key essential nutrition actions among pregnant women in southwest Ethiopia: implications for optimal pregnancy outcomes. BMC Pregnancy Childbirth 2024; 24:159. [PMID: 38395857 PMCID: PMC10885529 DOI: 10.1186/s12884-024-06354-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 02/18/2024] [Indexed: 02/25/2024] Open
Abstract
BACKGROUND Nutrition during pregnancy is a major determinant of human health and child development, and the role of promoting essential nutrition actions (ENA) is of a paramount importance for the health of the mother and newborn. However, the practice of ENA could be hampered by many factors, which need to be understood for tailored actions. This study assessed the practice of key ENAs and associated factors among pregnant mothers in southwest Ethiopia. METHOD A community-based cross-sectional study was employed among 373 pregnant mothers. A simple random sampling method was used to select the study participants. The data was entered into EpiData Manager and exported to SPSS version 21 for analysis. A bivariable logistic regression was conducted to explore the association between independent variables and the outcome variable. Variables with p-values less than 0.25 during bivariable analysis were entered into a multivariable logistic regression model. Level of statistical significance was declared at a p-value below 0.05. The crude and adjusted odds ratios, along with the 95% CI, were estimated to measure the strength of the association between the dependent variables and independent variables. RESULT In this study, 373 pregnant mothers have participated, with a response rate of 97%. A total of 275 (73.7%; 95% CI: 68.9-78.0) women practiced key essential nutrition actions at optimal level. Monthly household income of 2500 ETB (AOR = 0.45, 95% CI: 0.23, 0.89), rural residence (AOR = 2.31, 95% CI: 1.25, 4.4), and poor knowledge of key ENA messages (AOR = 3.36, 95% CI: 1.81, 6.26) were factors that were significantly associated with poor practice of key ENA messages. CONCLUSIONS The practice of key ENA messages was poor and closely linked to household income, residence, and knowledge of pregnant women's on ENA key messages. Therefore, nutritional intervention with a focus on intensified nutritional counseling is needed for better adoption of key ENA practices.
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Affiliation(s)
- Shamil Mudasir
- College of Medicine and Health Sciences, Wolkite University, Welkite, Ethiopia
| | - Ebrahim Muktar
- College of Medicine and Health Sciences, Wolkite University, Welkite, Ethiopia
| | - Abdu Oumer
- School of Public Health, College of Medicine and Health Sciences, Haramaya University, Harar, Ethiopia.
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Liu X, Liu X, An H, Li Z, Zhang L, Zhang Y, Liu J, Ye R, Li N. Folic acid supplements and perinatal mortality in China. Front Nutr 2024; 10:1281971. [PMID: 38260077 PMCID: PMC10800445 DOI: 10.3389/fnut.2023.1281971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 12/18/2023] [Indexed: 01/24/2024] Open
Abstract
Introduction Periconceptional use of multivitamins containing folic acid prevents external major birth defects, especially neural tube defects. We aimed to explore the effects of maternal folic acid supplementation alone on perinatal mortality with or without external major birth defects plus neural tube defects. Methods From the China-US Collaborative Project for Neural Tube Defects Prevention, we identified 222, 303 singleton pregnancies with detailed information on periconceptional folic acid use, defined as folic acid supplementary before the last menstrual date until to the end of the first trimester. Perinatal mortality included stillbirths after 20 weeks' gestation and early neonatal deaths within 7 days of delivery. Results Among the fetuses or infants of women who did not take folic acid, the rate of perinatal mortality was 2.99% and 1.62% at least 20 weeks' gestation in the northern and southern regions. Among the fetuses or infants of the women with periconceptional use of folic acid, the rates were 1.85% and 1.39% in the northern and southern region. The estimated relative risk for perinatal mortality [adjusted risk ratio (RR), 0.72; 95% confidence interval (CI), 0.61- 0.85], stillbirth (adjusted RR, 0.78; 95% CI, 0.64-0.96), early neonatal mortality (adjusted RR, 0.61; 95% CI, 0.45-0.82), and neonatal death (adjusted RR, 0.64; 95% CI, 0.49-0.83) in northern China was significantly decreased in association with periconceptional folic acid supplementation. Compared with northern, there was a lesser effect in southern China. Conclusion Periconceptional intake of 400μg folic acid daily reduces the overall risk perinatal mortality, as well as the risk from external major birth defects and neural tube defects, especially in northern China.
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Affiliation(s)
- Xiaojing Liu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
- Institute of Reproductive and Child Health/Ministry of Health Key Laboratory of Reproductive Health, Peking University Health Science Center, Beijing, China
| | - Xiaowen Liu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
- Institute of Reproductive and Child Health/Ministry of Health Key Laboratory of Reproductive Health, Peking University Health Science Center, Beijing, China
| | - Hang An
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
- Institute of Reproductive and Child Health/Ministry of Health Key Laboratory of Reproductive Health, Peking University Health Science Center, Beijing, China
| | - Zhiwen Li
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
- Institute of Reproductive and Child Health/Ministry of Health Key Laboratory of Reproductive Health, Peking University Health Science Center, Beijing, China
| | - Le Zhang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
- Institute of Reproductive and Child Health/Ministry of Health Key Laboratory of Reproductive Health, Peking University Health Science Center, Beijing, China
| | - Yali Zhang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
- Institute of Reproductive and Child Health/Ministry of Health Key Laboratory of Reproductive Health, Peking University Health Science Center, Beijing, China
| | - Jianmeng Liu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
- Institute of Reproductive and Child Health/Ministry of Health Key Laboratory of Reproductive Health, Peking University Health Science Center, Beijing, China
| | - Rongwei Ye
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
- Institute of Reproductive and Child Health/Ministry of Health Key Laboratory of Reproductive Health, Peking University Health Science Center, Beijing, China
| | - Nan Li
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
- Institute of Reproductive and Child Health/Ministry of Health Key Laboratory of Reproductive Health, Peking University Health Science Center, Beijing, China
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Perumal N, Wang D, Darling AM, Liu E, Wang M, Ahmed T, Christian P, Dewey KG, Kac G, Kennedy SH, Subramoney V, Briggs B, Fawzi WW. Suboptimal gestational weight gain and neonatal outcomes in low and middle income countries: individual participant data meta-analysis. BMJ 2023; 382:e072249. [PMID: 37734757 PMCID: PMC10512803 DOI: 10.1136/bmj-2022-072249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/08/2023] [Indexed: 09/23/2023]
Abstract
OBJECTIVE To estimate the associations between gestational weight gain (GWG) during pregnancy and neonatal outcomes in low and middle income countries. DESIGN Individual participant data meta-analysis. SETTING Prospective pregnancy studies from 24 low and middle income countries. MAIN OUTCOME MEASURES Nine neonatal outcomes related to timing (preterm birth) and anthropometry (weight, length, and head circumference) at birth, stillbirths, and neonatal death. ANALYSIS METHODS A systematic search was conducted in PubMed, Embase, and Web of Science which identified 53 prospective pregnancy studies published after the year 2000 with data on GWG, timing and anthropometry at birth, and neonatal mortality. GWG adequacy was defined as the ratio of the observed maternal weight gain over the recommended weight gain based on the Institute of Medicine body mass index specific guidelines, which are derived from data in high income settings, and the INTERGROWTH-21st GWG standards. Study specific estimates, adjusted for confounders, were generated and then pooled using random effects meta-analysis models. Maternal age and body mass index before pregnancy were examined as potential modifiers of the associations between GWG adequacy and neonatal outcomes. RESULTS Overall, 55% of participants had severely inadequate (<70%) or moderately inadequate (70% to <90%) GWG, 22% had adequate GWG (90-125%), and 23% had excessive GWG (≥125%). Severely inadequate GWG was associated with a higher risk of low birthweight (adjusted relative risk 1.62, 95% confidence interval 1.51 to 1.72; 48 studies, 93 337 participants; τ2=0.006), small for gestational age (1.44, 1.36 to 1.54; 51 studies, 93 191 participants; τ2=0.016), short for gestational age (1.47, 1.29 to 1.69; 40 studies, 83 827 participants; τ2=0.074), and microcephaly (1.57, 1.31 to 1.88; 31 studies, 80 046 participants; τ2=0.145) compared with adequate GWG. Excessive GWG was associated with a higher risk of preterm birth (1.22, 1.13 to 1.31; 48 studies, 103 762 participants; τ2=0.008), large for gestational age (1.44, 1.33 to 1.57; 47 studies, 90 044 participants; τ2=0.009), and macrosomia (1.52, 1.33 to 1.73; 29 studies, 68 138 participants; τ2=0) compared with adequate GWG. The direction and magnitude of the associations between GWG adequacy and several neonatal outcomes were modified by maternal age and body mass index before pregnancy. CONCLUSIONS Inadequate and excessive GWG are associated with a higher risk of adverse neonatal outcomes across settings. Interventions to promote optimal GWG during pregnancy are likely to reduce the burden of adverse neonatal outcomes, however further research is needed to assess optimal ranges of GWG based on data from low and middle income countries.
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Affiliation(s)
- Nandita Perumal
- Department of Epidemiology and Biostatistics, University of South Carolina, Columbia, SC, USA
- Department of Global Health and Population, Harvard T H Chan School of Public Health, Harvard University, Boston, MA, USA
| | - Dongqing Wang
- Department of Global and Community Health, College of Health and Human Services, George Mason University, Fairfax, VA, USA
| | - Anne Marie Darling
- Department of Global Health and Population, Harvard T H Chan School of Public Health, Harvard University, Boston, MA, USA
| | - Enju Liu
- Institutional Centers for Clinical and Translational Research, Boston Children's Hospital, Boston, MA, USA
- Division of Gastroenterology, Hepatology and Nutrition, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Molin Wang
- Department of Epidemiology, Harvard T H Chan School of Public Health, Harvard University, Boston, MA, USA
- Department of Biostatistics, Harvard T H Chan School of Public Health, Harvard University, Boston, MA, USA
| | - Tahmeed Ahmed
- Nutrition & Clinical Services, International Centre for Diarrheal Disease Research, Dhaka, Bangladesh
| | - Parul Christian
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Kathryn G Dewey
- Department of Nutrition, University of California, Davis, CA, USA
| | - Gilberto Kac
- Nutritional Epidemiology Observatory, Josué de Castro Nutrition Institute, Rio de Janeiro Federal University, Rio de Janeiro, Brazil
| | - Stephen H Kennedy
- Nuffield Department of Women's & Reproductive Health, University of Oxford, Oxford, UK
| | | | - Brittany Briggs
- Certara USA, on behalf of the Bill & Melinda Gates Foundation, Seattle, WA, USA
| | - Wafaie W Fawzi
- Department of Global Health and Population, Harvard T H Chan School of Public Health, Harvard University, Boston, MA, USA
- Department of Epidemiology, Harvard T H Chan School of Public Health, Harvard University, Boston, MA, USA
- Department of Nutrition, Harvard T H Chan School of Public Health, Harvard University, Boston, MA, USA
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Meme H, Amukoye E, Bowyer C, Chakaya J, Dobson R, Fuld J, Gray CM, Kiplimo R, Lesosky M, Mortimer K, Ndombi A, Obasi A, Orina F, Quint JK, Semple S, West SE, Zurba L, Devereux G. Preterm birth, birth weight, infant weight gain and their associations with childhood asthma and spirometry: a cross-sectional observational study in Nairobi, Kenya. BMJ Open Respir Res 2023; 10:e001895. [PMID: 37735103 PMCID: PMC10514609 DOI: 10.1136/bmjresp-2023-001895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Accepted: 09/08/2023] [Indexed: 09/23/2023] Open
Abstract
BACKGROUND In sub-Saharan Africa, the origins of asthma and high prevalence of abnormal lung function remain unclear. In high-income countries (HICs), associations between birth measurements and childhood asthma and lung function highlight the importance of antenatal and early life factors in the aetiology of asthma and abnormal lung function in children. We present here the first study in sub-Saharan Africa to relate birth characteristics to both childhood respiratory symptoms and lung function. METHODS Children attending schools in two socioeconomically contrasting but geographically close areas of Nairobi, Kenya, were recruited to a cross-sectional study of childhood asthma and lung function. Questionnaires quantified respiratory symptoms and preterm birth; lung function was measured by spirometry; and parents were invited to bring the child's immunisation booklet containing records of birth weight and serial weights in the first year. RESULTS 2373 children participated, 52% girls, median age (IQR), 10 years (8-13). Spirometry data were available for 1622. Child immunisation booklets were available for 500 and birth weight and infant weight gain data were available for 323 and 494 children, respectively. In multivariable analyses, preterm birth was associated with the childhood symptoms 'wheeze in the last 12 months'; OR 1.64, (95% CI 1.03 to 2.62), p=0.038; and 'trouble breathing' 3.18 (95% CI 2.27 to 4.45), p<0.001. Birth weight (kg) was associated with forced expiratory volume in 1 s z-score, regression coefficient (β) 0.30 (0.08, 0.52), p=0.008, FVC z-score 0.29 (95% CI 0.08 to 0.51); p=0.008 and restricted spirometry, OR 0.11 (95% CI 0.02 to 0.78), p=0.027. CONCLUSION These associations are in keeping with those in HICs and highlight antenatal factors in the aetiology of asthma and lung function abnormalities in sub-Saharan Africa.
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Affiliation(s)
- Helen Meme
- Centre for Respiratory Disease Research, Kenya Medical Research Institute, Nairobi, Kenya
| | - Evans Amukoye
- Research and Development, Kenya Medical Research Institute, Nairobi, Kenya
| | - Cressida Bowyer
- Faculty of Creative and Cultural Industries, University of Portsmouth, Portsmouth, UK
| | - Jeremiah Chakaya
- Centre for Respiratory Disease Research, Kenya Medical Research Institute, Nairobi, Kenya
| | - Ruaraidh Dobson
- Institute for Social Marketing and Health, University of Stirling, Stirling, UK
| | - Jonathan Fuld
- Respiratory Medicine, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Cindy M Gray
- School of Social and Political Sciences, University of Glasgow, Glasgow, UK
| | - Richard Kiplimo
- Centre for Respiratory Disease Research, Kenya Medical Research Institute, Nairobi, Kenya
| | - Maia Lesosky
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK
| | - Kevin Mortimer
- Department of Medicine, University of Cambridge, Cambridge, UK
- Department of Medicine, College of Health Sciences University of KwaZulu-Natal, Cambridge, UK
| | - Amos Ndombi
- Centre for Respiratory Disease Research, Kenya Medical Research Institute, Nairobi, Kenya
| | - Angela Obasi
- Department of International Public Health, Liverpool School of Tropical Medicine, Liverpool, UK
- Axess Sexual Health, Liverpool University Hospitals NHS Foundation Trust, Liverpool, UK
| | - Fred Orina
- Centre for Respiratory Disease Research, Kenya Medical Research Institute, Nairobi, Kenya
| | | | - Sean Semple
- Institute for Social Marketing and Health, University of Stirling, Stirling, UK
| | - Sarah E West
- Department of Environment and Geography, University of York, York, UK
| | | | - Graham Devereux
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK
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Darling AM, Wang D, Perumal N, Liu E, Wang M, Ahmed T, Christian P, Dewey KG, Kac G, Kennedy SH, Subramoney V, Briggs B, Fawzi WW. Risk factors for inadequate and excessive gestational weight gain in 25 low- and middle-income countries: An individual-level participant meta-analysis. PLoS Med 2023; 20:e1004236. [PMID: 37486938 PMCID: PMC10406332 DOI: 10.1371/journal.pmed.1004236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 08/07/2023] [Accepted: 04/21/2023] [Indexed: 07/26/2023] Open
Abstract
BACKGROUND Many women experience suboptimal gestational weight gain (GWG) in low- and middle-income countries (LMICs), but our understanding of risk factors associated with GWG in these settings is limited. We investigated the relationships between demographic, anthropometric, lifestyle, and clinical factors and GWG in prospectively collected data from LMICs. METHODS AND FINDINGS We conducted an individual participant-level meta-analysis of risk factors for GWG outcomes among 138,286 pregnant women with singleton pregnancies in 55 studies (27 randomized controlled trials and 28 prospective cohorts from 25 LMICs). Data sources were identified through PubMed, Embase, and Web of Science searches for articles published from January 2000 to March 2019. Titles and abstracts of articles identified in all databases were independently screened by 2 team members according to the following eligibility criteria: following inclusion criteria: (1) GWG data collection took place in an LMIC; (2) the study was a prospective cohort or randomized trial; (3) study participants were pregnant; and (4) the study was not conducted exclusively among human immunodeficiency virus (HIV)-infected women or women with other health conditions that could limit the generalizability of the results. The Institute of Medicine (IOM) body mass index (BMI)-specific guidelines were used to determine the adequacy of GWG, which we calculated as the ratio of the total observed weight gain over the mean recommended weight gain. Study outcomes included severely inadequate GWG (percent adequacy of GWG <70), inadequate GWG (percent adequacy of GWG <90, inclusive of severely inadequate), and excessive GWG (percent adequacy of GWG >125). Multivariable estimates from each study were pooled using fixed-effects meta-analysis. Study-specific regression models for each risk factor included all other demographic risk factors measured in a particular study as potential confounders, as well as BMI, maternal height, pre-pregnancy smoking, and chronic hypertension. Risk factors occurring during pregnancy were further adjusted for receipt of study intervention (if any) and 3-month calendar period. The INTERGROWTH-21st standard was used to define high and low GWG among normal weight women in a sensitivity analysis. The prevalence of inadequate GWG was 54%, while the prevalence of excessive weight gain was 22%. In multivariable models, factors that were associated with a higher risk of inadequate GWG included short maternal stature (<145 cm), tobacco smoking, and HIV infection. A mid-upper arm circumference (MUAC) of ≥28.1 cm was associated with the largest increase in risk for excessive GWG (risk ratio (RR) 3.02, 95% confidence interval (CI) [2.86, 3.19]). The estimated pooled difference in absolute risk between those with MUAC of ≥28.1 cm compared to those with a MUAC of 24 to 28.09 cm was 5.8% (95% CI 3.1% to 8.4%). Higher levels of education and age <20 years were also associated with an increased risk of excessive GWG. Results using the INTERGROWTH-21st standard among normal weight women were similar but attenuated compared to the results using the IOM guidelines among normal weight women. Limitations of the study's methodology include differences in the availability of risk factors and potential confounders measured in each individual dataset; not all risk factors or potential confounders of interest were available across datasets and data on potential confounders collected across studies. CONCLUSIONS Inadequate GWG is a significant public health concern in LMICs. We identified diverse nutritional, behavioral, and clinical risk factors for inadequate GWG, highlighting the need for integrated approaches to optimizing GWG in LMICs. The prevalence of excessive GWG suggests that attention to the emerging burden of excessive GWG in LMICs is also warranted.
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Affiliation(s)
- Anne Marie Darling
- Department of Global Health and Population, Harvard T.H. Chan School of Public Health, Harvard University, Boston, Massachusetts, United States of America
| | - Dongqing Wang
- Department of Global Health and Population, Harvard T.H. Chan School of Public Health, Harvard University, Boston, Massachusetts, United States of America
- Department of Global and Community Health, College of Health and Human Services, George Mason University, Fairfax, Virginia, United States of America
| | - Nandita Perumal
- Department of Global Health and Population, Harvard T.H. Chan School of Public Health, Harvard University, Boston, Massachusetts, United States of America
| | - Enju Liu
- Institutional Centers for Clinical and Translational Research, Boston Children’s Hospital, Boston, Massachusetts, United States of America
- Division of Gastroenterology, Hepatology and Nutrition, Boston Children’s Hospital, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Molin Wang
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Harvard University, Boston, Massachusetts, United States of America
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Harvard University, Boston, Massachusetts, United States of America
| | - Tahmeed Ahmed
- Nutrition & Clinical Services, International Centre for Diarrheal Disease Research, Bangladesh
| | - Parul Christian
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States of America
| | - Kathryn G. Dewey
- Department of Nutrition, University of California, Davis, Davis, California, United States of America
| | - Gilberto Kac
- Nutritional Epidemiology Observatory, Josué de Castro Nutrition Institute, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Stephen H. Kennedy
- Nuffield Department of Women’s & Reproductive Health, University of Oxford, Oxford, United Kingdom
| | | | - Brittany Briggs
- Certara USA, Inc. on behalf of the Bill & Melinda Gates Foundation, Seattle, Washington, United States of America
| | - Wafaie W. Fawzi
- Department of Global Health and Population, Harvard T.H. Chan School of Public Health, Harvard University, Boston, Massachusetts, United States of America
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Harvard University, Boston, Massachusetts, United States of America
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Harvard University, Boston, Massachusetts, United States of America
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Gomes F, Askari S, Black RE, Christian P, Dewey KG, Mwangi MN, Rana Z, Reed S, Shankar AH, Smith ER, Tumilowicz A. Antenatal multiple micronutrient supplements versus iron‐folic acid supplements and birth outcomes: Analysis by gestational age assessment method. MATERNAL & CHILD NUTRITION 2023:e13509. [DOI: 10.1111/mcn.13509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 03/01/2023] [Accepted: 03/08/2023] [Indexed: 04/04/2023]
Affiliation(s)
- Filomena Gomes
- The New York Academy of Sciences New York City New York USA
- NOVA Medical School Universidade NOVA de Lisboa Lisboa Portugal
| | | | - Robert E. Black
- Johns Hopkins Bloomberg School of Public Health Baltimore Maryland USA
| | - Parul Christian
- Johns Hopkins Bloomberg School of Public Health Baltimore Maryland USA
| | - Kathryn G. Dewey
- Department of Nutrition University of California, Davis Davis California USA
| | | | - Ziaul Rana
- The New York Academy of Sciences New York City New York USA
| | - Sarah Reed
- The Bill & Melinda Gates Foundation Seattle Washington USA
| | - Anuraj H. Shankar
- Nuffield Department of Medicine University of Oxford Oxford UK
- Summit Institute for Development Mataram Indonesia
| | - Emily R. Smith
- Milken Institute School of Public Health The George Washington University Washington District of Columbia USA
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8
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Wube Sume B. Fetal malnutrition and associated factors among newborn babies delivered at Debre Markos Comprehensive Specialized Hospital, Ethiopia. INTERNATIONAL JOURNAL OF AFRICA NURSING SCIENCES 2023. [DOI: 10.1016/j.ijans.2023.100543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
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9
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Liu E, Wang D, Darling AM, Perumal N, Wang M, Ahmed T, Christian P, Dewey KG, Kac G, Kennedy S, Subramoney V, Briggs B, Fawzi WW. Effects of prenatal nutritional supplements on gestational weight gain in low- and middle-income countries: a meta-analysis of individual participant data. Am J Clin Nutr 2022; 116:1864-1876. [PMID: 36130877 PMCID: PMC10843965 DOI: 10.1093/ajcn/nqac259] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 07/29/2022] [Accepted: 09/13/2022] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND Gestational weight gain (GWG) below or above the Institute of Medicine (IOM) recommendations has been associated with adverse perinatal outcomes. Few studies have examined the effect of prenatal nutrient supplementations on GWG in low- and middle-income countries (LMICs). OBJECTIVES We aimed to investigate the effects of multiple micronutrient supplements (MMSs) and small-quantity lipid-based nutrient supplements (LNSs) on GWG in LMICs. METHODS A 2-stage meta-analysis of individual participant data was conducted to examine the effects of MMSs (45,507 women from 14 trials) and small-quantity LNSs (6237 women from 4 trials) on GWG compared with iron and folic acid supplements only. Percentage adequacy of GWG and total weight gain at delivery were calculated according to the IOM 2009 guidelines. Binary outcomes included severely inadequate (percentage adequacy <70%), inadequate (<90%), and excessive (>125%) GWG. Results from individual trials were pooled using fixed-effects inverse-variance models. Heterogeneity was examined using I2, stratified analysis, and meta-regression. RESULTS MMSs resulted in a greater percentage adequacy of GWG [weighted mean difference (WMD): 0.86%; 95% CI: 0.28%, 1.44%; P < 0.01] and higher GWG at delivery (WMD: 209 g; 95% CI: 139, 280 g; P < 0.01) than among those in the control arm. Women who received MMSs had a 2.9% reduced risk of severely inadequate GWG (RR: 0.971; 95% CI: 0.956, 0.987; P < 0.01). No association was found between small-quantity LNSs and GWG percentage adequacy (WMD: 1.51%; 95% CI: -0.38%, 3.40%; P = 0.21). Neither MMSs nor small-quantity LNSs were associated with excessive GWG. CONCLUSIONS Maternal MMSs were associated with greater GWG percentage adequacy and total GWG at delivery than was iron and folic acid only. This finding is consistent with previous results on birth outcomes and will inform policy development and local recommendations of switching routine prenatal iron and folic acid supplements to MMSs.
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Affiliation(s)
- Enju Liu
- Institutional Centers for Clinical and Translational Research, Boston Children’s Hospital, Boston, MA, USA
- Division of Gastroenterology, Hepatology and Nutrition, Boston Children’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Dongqing Wang
- Department of Global Health and Population, Harvard TH Chan School of Public Health, Harvard University, Boston, MA, USA
- Department of Global and Community Health, College of Health and Human Services, George Mason University, Fairfax, VA, USA
| | - Anne M Darling
- Department of Global Health and Population, Harvard TH Chan School of Public Health, Harvard University, Boston, MA, USA
| | - Nandita Perumal
- Department of Global Health and Population, Harvard TH Chan School of Public Health, Harvard University, Boston, MA, USA
| | - Molin Wang
- Department of Epidemiology, Harvard TH Chan School of Public Health, Harvard University, Boston, MA, USA
- Department of Biostatistics, Harvard TH Chan School of Public Health, Harvard University, Boston, MA, USA
| | - Tahmeed Ahmed
- Nutrition & Clinical Services, International Centre for Diarrheal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Parul Christian
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Kathryn G Dewey
- Department of Nutrition, University of California, Davis, Davis, CA, USA
| | - Gilberto Kac
- Nutritional Epidemiology Observatory, Josué de Castro Nutrition Institute, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Stephen Kennedy
- Nuffield Department of Women’s & Reproductive Health, University of Oxford, Oxford, United Kingdom
| | | | - Brittany Briggs
- Certara USA, Inc. on behalf of the Bill & Melinda Gates Foundation, Seattle, WA, USA
| | - Wafaie W Fawzi
- Department of Global Health and Population, Harvard TH Chan School of Public Health, Harvard University, Boston, MA, USA
- Department of Epidemiology, Harvard TH Chan School of Public Health, Harvard University, Boston, MA, USA
- Department of Nutrition, Harvard TH Chan School of Public Health, Harvard University, Boston, MA, USA
| | - members of the GWG Pooling Project Consortium
- Institutional Centers for Clinical and Translational Research, Boston Children’s Hospital, Boston, MA, USA
- Division of Gastroenterology, Hepatology and Nutrition, Boston Children’s Hospital, Harvard Medical School, Boston, MA, USA
- Department of Global Health and Population, Harvard TH Chan School of Public Health, Harvard University, Boston, MA, USA
- Department of Global and Community Health, College of Health and Human Services, George Mason University, Fairfax, VA, USA
- Department of Epidemiology, Harvard TH Chan School of Public Health, Harvard University, Boston, MA, USA
- Department of Biostatistics, Harvard TH Chan School of Public Health, Harvard University, Boston, MA, USA
- Nutrition & Clinical Services, International Centre for Diarrheal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
- Department of Nutrition, University of California, Davis, Davis, CA, USA
- Nutritional Epidemiology Observatory, Josué de Castro Nutrition Institute, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
- Nuffield Department of Women’s & Reproductive Health, University of Oxford, Oxford, United Kingdom
- Certara Canada, Montreal, Quebec, Canada
- DVPL Tech
- Certara USA, Inc. on behalf of the Bill & Melinda Gates Foundation, Seattle, WA, USA
- Department of Nutrition, Harvard TH Chan School of Public Health, Harvard University, Boston, MA, USA
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10
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Ranjith A, Puri S, Vohra K, Khanam A, Bairwa M, Kaur R, Yadav K. Ideal Dose of Iron in Multiple Micronutrient Supplement: A Narrative Review of Evidence. Cureus 2022; 14:e28688. [PMID: 36199654 PMCID: PMC9526876 DOI: 10.7759/cureus.28688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/01/2022] [Indexed: 11/08/2022] Open
Abstract
Anemia is a significant public health problem in low- and middle-income countries (LMICs). The co-existence of other micronutrient deficiencies and iron deficiency among pregnant women may be the reason for the inability to control anemia through iron and folic acid (IFA) supplementation. Multiple micronutrient supplementation (MMS) in pregnancy may help to overcome this problem. However, the recent World Health Organization (WHO) guidelines on MMS supplementation in pregnancy raised concerns regarding the adequacy of a 30mg iron dose in the MMS supplements in LMICs. The review summarized the literature to answer this question. Though most studies showed a comparable effect of MMS with 30mg iron and IFA with 60mg iron on maternal anemia outcomes, anemia persisted in the third trimester in both groups. There is a need to consider the use of a higher iron dose in MMS, especially in LMICs, to combat the problem of anemia, alongside correcting other micronutrient deficiencies.
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11
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S.A. P, Sinha N, Mehta P, Malenahalli Chandrashekarappa S. Deciphering the association between Covid vaccine side effects and menstrual cycle. Biomedicine (Taipei) 2022. [DOI: 10.51248/.v42i3.1290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
Introduction and Aim: In light of the ongoing pandemic Covid -19 and vaccination drive, our study intended to observe the association of reported side effects of Covid vaccine to menstrual cycle. There is no research done about covid vaccine effects on menstrual cycle.
Materials and Methods: A cross-sectional online questionnaire-based study was conducted on females aged between 18-45 years who had received at least one dose of the Covid vaccine. The google form containing the questionnaire adhered to the CHERRIES guidelines for online surveys, was circulated for 10 days and had 14 questions on the menstrual cycle, Covid vaccines and their side effects. Out of the 886 responses obtained, 129 did not meet our inclusion criteria and hence, 757 responses were considered for statistical analysis. The data were subjected to descriptive, Chi-square tests.
Results: The data showed a significant (p=0.027) association of age with side effects of the Covid vaccine, with the younger age group experiencing more side effects than the older age group. The side effects of the Covid vaccine did not show association (p=0.34) to menstrual cycle phases nor there was significant (p= 0.87) disturbance to the menstrual cycle post-vaccination.
Conclusion: As there were no association of Covid vaccine effects to menstrual cycle, our study may allay apprehension in women who are going to take Covid vaccine and update guidance to health professionals during vaccination drive.
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12
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Wang C, Lashua LP, Carter CE, Johnson SK, Wang M, Ross TM, Ghedin E, Zhang B, Forst CV. Sex disparities in influenza: A multiscale network analysis. iScience 2022; 25:104192. [PMID: 35479404 PMCID: PMC9036134 DOI: 10.1016/j.isci.2022.104192] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 12/05/2021] [Accepted: 03/30/2022] [Indexed: 12/12/2022] Open
Abstract
Sex differences in the pathogenesis of infectious diseases because of differential immune responses between females and males have been well-documented for multiple pathogens. However, the molecular mechanism underlying the observed sex differences in influenza virus infection remains poorly understood. In this study, we used a network-based approach to characterize the blood transcriptome collected over the course of infection with influenza A virus from female and male ferrets to dissect sex-biased gene expression. We identified significant differences in the temporal dynamics and regulation of immune responses between females and males. Our results elucidate sex-differentiated pathways involved in the unfolded protein response (UPR), lipid metabolism, and inflammatory responses, including a female-biased IRE1/XBP1 activation and male-biased crosstalk between metabolic reprogramming and IL-1 and AP-1 pathways. Overall, our study provides molecular insights into sex differences in transcriptional regulation of immune responses and contributes to a better understanding of sex biases in influenza pathogenesis. Regulation of immune responses between females and males is significantly different Rapid activation of UPR in females triggers potent immune and inflammatory responses Male-specific regulatory pattern in the AP1 pathway indicate a bias in immune response
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Affiliation(s)
- Chang Wang
- Center for Genomics and Systems Biology, Department of Biology, New York University, New York, NY, USA
| | - Lauren P. Lashua
- Center for Genomics and Systems Biology, Department of Biology, New York University, New York, NY, USA
| | - Chalise E. Carter
- Center for Vaccines and Immunology, University of Georgia, Athens, GA 30602, USA
| | - Scott K. Johnson
- Center for Vaccines and Immunology, University of Georgia, Athens, GA 30602, USA
| | - Minghui Wang
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, Box 1498, New York, NY 10029-6574, USA
- Mount Sinai Center for Transformative Disease Modeling, Icahn School of Medicine at Mount Sinai, 1470 Madison Avenue, New York, NY 10029, USA
- Icahn Institute for Data Science and Genomic Technology, Icahn School of Medicine at Mount Sinai, 1425 Madison Avenue, New York, NY 10029-6501, USA
| | - Ted M. Ross
- Center for Vaccines and Immunology, University of Georgia, Athens, GA 30602, USA
- Department of Infectious Diseases, Center for Vaccines and Immunology, University of Georgia, Athens, GA 30602, USA
| | - Elodie Ghedin
- Center for Genomics and Systems Biology, Department of Biology, New York University, New York, NY, USA
- Systems Genomics Section, Laboratory of Parasitic Diseases, NIAID, NIH, Bethesda, MD, USA
| | - Bin Zhang
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, Box 1498, New York, NY 10029-6574, USA
- Mount Sinai Center for Transformative Disease Modeling, Icahn School of Medicine at Mount Sinai, 1470 Madison Avenue, New York, NY 10029, USA
- Icahn Institute for Data Science and Genomic Technology, Icahn School of Medicine at Mount Sinai, 1425 Madison Avenue, New York, NY 10029-6501, USA
- Department of Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, Box 1677, New York, NY 10029-6574, USA
| | - Christian V. Forst
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, Box 1498, New York, NY 10029-6574, USA
- Mount Sinai Center for Transformative Disease Modeling, Icahn School of Medicine at Mount Sinai, 1470 Madison Avenue, New York, NY 10029, USA
- Icahn Institute for Data Science and Genomic Technology, Icahn School of Medicine at Mount Sinai, 1425 Madison Avenue, New York, NY 10029-6501, USA
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, Box 1498, New York, NY 10029-6574
- Corresponding author
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13
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Gomes F, Agustina R, Black RE, Christian P, Dewey KG, Kraemer K, Shankar AH, Smith ER, Thorne-Lyman A, Tumilowicz A, Bourassa MW. Multiple micronutrient supplements versus iron-folic acid supplements and maternal anemia outcomes: an iron dose analysis. Ann N Y Acad Sci 2022; 1512:114-125. [PMID: 35218047 PMCID: PMC9306935 DOI: 10.1111/nyas.14756] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 10/01/2021] [Indexed: 11/26/2022]
Abstract
Antenatal multiple micronutrient supplements (MMS) are more effective than iron and folic acid (IFA) supplements in reducing adverse pregnancy outcomes. Questions remain, however, about the ability of MMS to prevent anemia as effectively as IFA, especially at a lower dose of daily iron and in areas of high anemia prevalence. Analyzing data from 11 trials from a recent Cochrane review, we compared MMS to IFA, delivering either 30 or 60 mg of iron, in sustaining hemoglobin and preventing third trimester anemia and iron deficiency anemia (IDA), accounting for daily iron dose, total supplemental iron intake, and baseline prevalence of anemia. There were no differences between MMS and IFA in third trimester hemoglobin concentration or risks of anemia or IDA by iron dose or total supplemental iron consumed. MMS providing 30 mg of iron was comparable to IFA with 60 mg of iron: mean hemoglobin difference of −0.26 g/L (95% CI: −1.41 to 0.89), risk ratios of 0.99 (95% CI: 0.92–1.07) for anemia, and 1.31 (95% CI: 0.66–2.60) for IDA. Baseline prevalence of anemia did not explain heterogeneity in findings. Compared to IFA, MMS results in comparable hemoglobin concentration and protection against anemia during pregnancy, independently of iron dose.
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Affiliation(s)
- Filomena Gomes
- The New York Academy of Sciences, New York, New York.,NOVA Medical School, Lisbon, Portugal
| | - Rina Agustina
- Department of Nutrition, Faculty of Medicine, Universitas Indonesia - Dr Cipto Mangunkusumo General Hospital, Jakarta, Indonesia.,Human Nutrition Research Centre, Indonesian Medical Education and Research Institute, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia
| | - Robert E Black
- Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Parul Christian
- Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | | | - Klaus Kraemer
- Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland.,Sight and Life Foundation, Basel, Switzerland
| | - Anuraj H Shankar
- University of Oxford, Oxford, UK.,Summit Institute for Development, Mataram, Indonesia
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14
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Toolan M, Barnard K, Lynch M, Maharjan N, Thapa M, Rai N, Lavender T, Larkin M, Caldwell DM, Burden C, Manandhar DS, Merriel A. A systematic review and narrative synthesis of antenatal interventions to improve maternal and neonatal health in Nepal. AJOG GLOBAL REPORTS 2022; 2:100019. [PMID: 35252905 PMCID: PMC8883503 DOI: 10.1016/j.xagr.2021.100019] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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15
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Abstract
Many male traits are well explained by sexual selection theory as adaptations to mating competition and mate choice, whereas no unifying theory explains traits expressed more in females. Anne Campbell's "staying alive" theory proposed that human females produce stronger self-protective reactions than males to aggressive threats because self-protection tends to have higher fitness value for females than males. We examined whether Campbell's theory has more general applicability by considering whether human females respond with greater self-protectiveness than males to other threats beyond aggression. We searched the literature for physiological, behavioral, and emotional responses to major physical and social threats, and found consistent support for females' responding with greater self-protectiveness than males. Females mount stronger immune responses to many pathogens; experience a lower threshold to detect, and lesser tolerance of, pain; awaken more frequently at night; express greater concern about physically dangerous stimuli; exert more effort to avoid social conflicts; exhibit a personality style more focused on life's dangers; react to threats with greater fear, disgust and sadness; and develop more threat-based clinical conditions than males. Our findings suggest that in relation to threat human females have relatively heightened protective reactions compared to males. The pervasiveness of this result across multiple domains suggests that general mechanisms might exist underlying females' unique adaptations. An understanding of such processes would enhance knowledge of female health and well-being.
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16
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Sethi V, Choedon T, Chowdhury R, Bhatia N, Dinachandra K, Murira Z, Bhanot A, Baswal D, de Wagt A, Bhargava M, Meshram II, Babu GR, Kulkarni B, Divakar H, Jacob CM, Killeen SL, McAuliffe F, Vergehese M, Ghosh S, Hanson M. Screening and management options for severe thinness during pregnancy in India. Int J Gynaecol Obstet 2021; 155:357-379. [PMID: 34724206 DOI: 10.1002/ijgo.13939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 09/15/2021] [Accepted: 09/17/2021] [Indexed: 11/08/2022]
Abstract
This paper answers research questions on screening and management of severe thinness in pregnancy, approaches that may potentially work in India, and what more is needed for implementing these approaches at scale. A desk review of studies in the last decade in South Asian countries was carried out collating evidence on six sets of strategies like balanced energy supplementation (BEP) alone and in combination with other interventions like nutrition education. Policies and guidelines from South Asian countries were reviewed to understand the approaches being used. A 10-point grid covering public health dimensions covered by World Health Organization and others was created for discussion with policymakers and implementers, and review of government documents sourced from Ministry of Health and Family Welfare. Eighteen studies were shortlisted covering Bangladesh, India, Nepal, and Pakistan. BEP for longer duration, preconception initiation of supplementation, and better pre-supplementation body mass index (BMI) positively influenced birthweight. Multiple micronutrient supplementation was more effective in improving gestational weight gain among women with better pre-supplementation BMI. Behavior change communication and nutrition education showed positive outcomes on dietary practices like higher dietary diversity. Among South Asian countries, Sri Lanka and Nepal are the only two countries to have management of maternal thinness in their country guidelines. India has at least nine variations of supplementary foods and three variations of full meals for pregnant women, which can be modified to meet additional nutritional needs of those severely thin. Under the National Nutrition Mission, almost all of the globally recommended maternal nutrition interventions are covered, but the challenge of reaching, identifying, and managing cases of maternal severe thinness persists. This paper provides four actions for addressing maternal severe thinness through available public health programs, infrastructure, and human resources.
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Affiliation(s)
- Vani Sethi
- Nutrition Section, United Nations Children's Fund, New Delhi, India
| | | | - Ranadip Chowdhury
- Centre for Health Research and Development, Society for Applied Studies, New Delhi, India
| | - Neena Bhatia
- NITI Aayog, Government of India, New Delhi, India
| | | | - Zivai Murira
- Regional Office for South Asia, UNICEF, Kathmandu, Nepal
| | | | - Dinesh Baswal
- Programmes, Mamta Health Institute for Mother and Child, New Delhi, India
| | - Arjan de Wagt
- Nutrition Section, United Nations Children's Fund, New Delhi, India
| | - Madhavi Bhargava
- Department of Community Medicine, Yenepoya Medical College, Mangalore, Karnataka, India
| | | | - Giridhara R Babu
- Department of Epidemiology, Indian Institute of Public Health, Bengaluru, India
| | - Bharati Kulkarni
- Indian Council of Medical Research, National Institute of Nutrition, Telangana, India
| | | | - Chandni Maria Jacob
- NIHR Southampton Biomedical Research Centre, University Hospital Southampton, Southampton, UK.,Institute of Developmental Sciences, University of Southampton, Southampton, UK
| | - Sarah Louise Killeen
- UCD Perinatal Research Centre, School of Medicine, University College Dublin, National Maternity Hospital, Dublin, Ireland
| | - Fionnuala McAuliffe
- UCD Perinatal Research Centre, School of Medicine, University College Dublin, National Maternity Hospital, Dublin, Ireland
| | | | | | - Mark Hanson
- NIHR Southampton Biomedical Research Centre, University Hospital Southampton, Southampton, UK.,Institute of Developmental Sciences, University of Southampton, Southampton, UK
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17
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Keats EC, Oh C, Chau T, Khalifa DS, Imdad A, Bhutta ZA. Effects of vitamin and mineral supplementation during pregnancy on maternal, birth, child health and development outcomes in low- and middle-income countries: A systematic review. CAMPBELL SYSTEMATIC REVIEWS 2021; 17:e1127. [PMID: 37051178 PMCID: PMC8356361 DOI: 10.1002/cl2.1127] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Background Almost two billion people who are deficient in vitamins and minerals are women and children in low- and middle-income countries (LMIC). These deficiencies are worsened during pregnancy due to increased energy and nutritional demands, causing adverse outcomes in mother and child. To reduce micronutrient deficiencies, several strategies have been implemented, including diet diversification, large-scale and targeted fortification, staple crop bio-fortification and micronutrient supplementation. Objectives To evaluate and summarize the available evidence on the effects of micronutrient supplementation during pregnancy in LMIC on maternal, fetal, child health and child development outcomes. This review will assess the impact of single micronutrient supplementation (calcium, vitamin A, iron, vitamin D, iodine, zinc, vitamin B12), iron-folic acid (IFA) supplementation, multiple micronutrient (MMN) supplementation, and lipid-based nutrient supplementation (LNS) during pregnancy. Search Methods We searched papers published from 1995 to 31 October 2019 (related programmes and good quality studies pre-1995 were limited) in CAB Abstracts, CINAHL, Cochrane Central Register of Controlled Trials, Embase, International Initiative for Impact Evaluations, LILACS, Medline, POPLINE, Web of Science, WHOLIS, ProQuest Dissertations & Theses Global, R4D, WHO International Clinical Trials Registry Platform. Non-indexed grey literature searches were conducted using Google, Google Scholar, and web pages of key international nutrition agencies. Selection Criteria We included randomized controlled trials (individual and cluster-randomized) and quasi-experimental studies that evaluated micronutrient supplementation in healthy, pregnant women of any age and parity living in a LMIC. LMIC were defined by the World Bank Group at the time of the search for this review. While the aim was to include healthy pregnant women, it is likely that these populations had one or more micronutrient deficiencies at baseline; women were not excluded on this basis. Data Collection and Analysis Two authors independently assessed studies for inclusion and risk of bias, and conducted data extraction. Data were matched to check for accuracy. Quality of evidence was assessed using the GRADE approach. Main Results A total of 314 papers across 72 studies (451,723 women) were eligible for inclusion, of which 64 studies (439,649 women) contributed to meta-analyses. Seven studies assessed iron-folic acid (IFA) supplementation versus folic acid; 34 studies assessed MMN vs. IFA; 4 studies assessed LNS vs. MMN; 13 evaluated iron; 13 assessed zinc; 9 evaluated vitamin A; 11 assessed vitamin D; and 6 assessed calcium. Several studies were eligible for inclusion in multiple types of supplementation. IFA compared to folic acid showed a large and significant (48%) reduction in the risk of maternal anaemia (average risk ratio (RR) 0.52, 95% CI 0.41 to 0.66; studies = 5; participants = 15,540; moderate-quality evidence). As well, IFA supplementation demonstrated a smaller but significant, 12% reduction in risk of low birthweight (LBW) babies (average RR 0.88, 95% CI 0.78 to 0.99; studies = 4; participants = 17,257; high-quality evidence). MMN supplementation was defined as any supplement that contained at least 3 micronutrients. Post-hoc analyses were conducted, where possible, comparing the differences in effect of MMN with 4+ components and MMN with 3 or 4 components. When compared to iron with or without FA, MMN supplementation reduced the risk of LBW by 15% (average RR 0.85, 95% CI 0.77 to 0.93; studies = 28; participants = 79,972); this effect was greater in MMN with >4 micronutrients (average RR 0.79, 95% CI 0.71 to 0.88; studies = 19; participants = 68,138 versus average RR 1.01, 95% CI 0.92 to 1.11; studies = 9; participants = 11,834). There was a small and significant reduction in the risk of stillbirths (average RR 0.91; 95% CI 0.86 to 0.98; studies = 22; participants = 96,772) and a small and significant effect on the risk of small-for-gestational age (SGA) (average RR 0.93; 95% CI 0.88 to 0.98; studies = 19; participants = 52,965). For stillbirths and SGA, the effects were greater among those provided MMN with 4+ micronutrients. Children whose mothers had been supplemented with MMN, compared to IFA, demonstrated a 16% reduced risk of diarrhea (average RR 0.84; 95% CI 0.76 to 0.92; studies = 4; participants = 3,142). LNS supplementation, compared to MMN, made no difference to any outcome; however, the evidence is limited. Iron supplementation, when compared to no iron or placebo, showed a large and significant effect on maternal anaemia, a reduction of 47% (average RR 0.53, 95% CI 0.43 to 0.65; studies = 6; participants = 15,737; moderate-quality evidence) and a small and significant effect on LBW (average RR 0.88, 95% CI 0.78 to 0.99; studies = 4; participants = 17,257; high-quality evidence). Zinc and vitamin A supplementation, each both compared to placebo, had no impact on any outcome examined with the exception of potentially improving serum/plasma zinc (mean difference (MD) 0.43 umol/L; 95% CI -0.04 to 0.89; studies = 5; participants = 1,202) and serum/plasma retinol (MD 0.13 umol/L; 95% CI -0.03 to 0.30; studies = 6; participants = 1,654), respectively. When compared to placebo, vitamin D supplementation may have reduced the risk of preterm births (average RR 0.64; 95% CI 0.40 to 1.04; studies = 7; participants = 1,262), though the upper CI just crosses the line of no effect. Similarly, calcium supplementation versus placebo may have improved rates of pre-eclampsia/eclampsia (average RR 0.45; 95% CI 0.19 to 1.06; studies = 4; participants = 9,616), though the upper CI just crosses 1. Authors' Conclusions The findings suggest that MMN and vitamin supplementation improve maternal and child health outcomes, including maternal anaemia, LBW, preterm birth, SGA, stillbirths, micronutrient deficiencies, and morbidities, including pre-eclampsia/eclampsia and diarrhea among children. MMN supplementation demonstrated a beneficial impact on the most number of outcomes. In addition, MMN with >4 micronutrients appeared to be more impactful than MMN with only 3 or 4 micronutrients included in the tablet. Very few studies conducted longitudinal analysis on longer-term health outcomes for the child, such as anthropometric measures and developmental outcomes; this may be an important area for future research. This review may provide some basis to guide continual discourse around replacing IFA supplementation with MMN along with the use of single micronutrient supplementation programs for specific outcomes.
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Affiliation(s)
- Emily C. Keats
- Centre for Global Child HealthThe Hospital for Sick ChildrenTorontoCanada
| | - Christina Oh
- Centre for Global Child HealthThe Hospital for Sick ChildrenTorontoCanada
| | - Tamara Chau
- Centre for Global Child HealthThe Hospital for Sick ChildrenTorontoCanada
| | - Dina S. Khalifa
- Centre for Global Child HealthThe Hospital for Sick ChildrenTorontoCanada
| | - Aamer Imdad
- PediatricsUpstate Medical University, SyracuseNew YorkUSA
| | - Zulfiqar A. Bhutta
- Centre for Global Child HealthThe Hospital for Sick ChildrenTorontoCanada
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Keats EC, Akseer N, Thurairajah P, Cousens S, Bhutta ZA. Multiple-micronutrient supplementation in pregnant adolescents in low- and middle-income countries: a systematic review and a meta-analysis of individual participant data. Nutr Rev 2021; 80:141-156. [PMID: 33846729 PMCID: PMC8754251 DOI: 10.1093/nutrit/nuab004] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
CONTEXT Approximately 7.3 million births occur annually among adolescents in low- and middle-income countries. Pregnant adolescents constitute a nutritionally vulnerable group that could benefit from intervention to mitigate the mortality and adverse birth outcomes associated with adolescent pregnancy. OBJECTIVE The aim of this systematic review and meta-analysis was to assess the following: (1) the effect of multiple-micronutrient (MMN) supplementation vs iron and folic acid (IFA) supplementation among adolescents on maternal morbidity, birth outcomes, and mortality outcomes, (2) the effects of MMN supplementation in adolescents compared with the effects in adult women, and (3) the effect modification, if any, of MMN supplementation by baseline and geographic characteristics of adolescents. DATA SOURCES MEDLINE and Cochrane databases were searched, along with the reference lists of relevant reviews. STUDY SELECTION Multiple-micronutrient supplementation trials in pregnancy that were conducted in a low- or middle-income country and had included at least 100 adolescents (10-19 years of age) were eligible for inclusion. Two independent reviewers assessed study eligibility. DATA EXTRACTION Thirteen randomized controlled trials conducted in Africa and Asia were identified from 1792 reviews and 1578 original trials. Individual-level data was shared by study collaborators and was checked for completeness and extreme values. One- and two-stage individual participant data meta-analyses were conducted using data from randomized controlled trials of MMN supplementation. RESULTS A total of 15 283 adolescents and 44 499 adult women with singleton births were included in the individual participant data meta-analyses of MMN supplementation vs IFA supplementation. In adolescents, MMN supplementation reduced low birth weight (1-stage OR = 0.87, 95%CI 0.77-0.97; 2-stage OR = 0.81; 95%CI 0.74-0.88), preterm birth (1-stage OR = 0.88, 95%CI 0.80-0.98; 2-stage OR = 0.86, 95%CI 0.79-0.95), and small-for-gestational-age births (1-stage OR = 0.90, 95%CI 0.81-1.00; 2-stage OR = 0.86, 95%CI 0.79-0.95) when compared with IFA supplementation. The effects of MMN supplementation did not differ between adolescents and older women, although a potentially greater reduction in small-for-gestational-age births was observed among adolescents. Effect modification by baseline characteristics and geographic region was inconclusive. CONCLUSIONS Multiple-micronutrient supplementation can improve birth outcomes among pregnant adolescents in low- and middle-income countries. Policy related to antenatal care in these settings should prioritize MMN supplementation over the currently recommended IFA supplementation for all pregnant women, especially adolescents.
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Affiliation(s)
- Emily C Keats
- E.C. Keats, N. Akseer, P. Thurairajah, and Z.A. Bhutta are with the Centre for Global Child Health, The Hospital for Sick Children, Toronto, Ontario, Canada. S. Cousens is with the London School of Hygiene & Tropical Medicine, London, United Kingdom. Z.A. Bhutta is with the Dalla Lana School of Public Health, University of Toronto, Toronto, Canada. Z.A. Bhutta is with the Aga Khan University, Karachi, Pakistan. H. Ali is with the JiVitA Maternal and Child Nutrition and Health Research Project, Gaibandha, Bangladesh. S. El Arifeen is with the International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh. U. Ashorn is with the Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland. J. Belizan is with the University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA. R.E. Black, P. Christian, A.B. Labrique, K. West, and L.S-F. Wu are with the Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA. L.M. De-Regil is with Nutrition International, Ottawa, Ontario, Canada. K. Dewey is with the University of California, Davis, Davis, California, USA. M.J. Dibley is with The University of Sydney, Sydney, New South Wales, Australia. W. Fawzi and C.R. Sudfeld are with the Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA. H. Friis and P. Kaestel are with the University of Copenhagen, Copenhagen, Denmark. E. Gomo is with the University of Zimbabwe, Harare, Zimbabwe. L. Huybregts is with the International Food Policy Research Institute, Washington, DC, USA. R. Jayatissa is with the Medical Research Institute, Colombo, Sri Lanka. S.K. Khatry is with the Nepal Nutrition Intervention Project-Sarlahi, Kathmandu, Nepal. P.W. Kolsteren is with Ghent University, Ghent, Belgium. M. McCauley is with the Centre for Maternal and Newborn Health, Liverpool School of Tropical Medicine, Liverpool, United Kingdom. B.M. Oaks is with the University of Rhode Island, Kingston, Rhode Island, USA. E. Piwoz is with the Bill & Melinda Gates Foundation, Seattle, Washington, USA. S. Shaikh is with the Society for Applied Studies, New Delhi, India. D.D. Soekarjo is with the Savica Consultancy, Jakarta, Indonesia. W. Urassa is with the Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania. N. Zagre is with the UNICEF Regional Office for West and Central Africa, Dakar, Senegal. L. Zeng and Z. Zhu are with the School of Public Health, Xi'an Jiaotong University Health Science Centre, Xi'an, Shaanxi, China
| | - Nadia Akseer
- E.C. Keats, N. Akseer, P. Thurairajah, and Z.A. Bhutta are with the Centre for Global Child Health, The Hospital for Sick Children, Toronto, Ontario, Canada. S. Cousens is with the London School of Hygiene & Tropical Medicine, London, United Kingdom. Z.A. Bhutta is with the Dalla Lana School of Public Health, University of Toronto, Toronto, Canada. Z.A. Bhutta is with the Aga Khan University, Karachi, Pakistan. H. Ali is with the JiVitA Maternal and Child Nutrition and Health Research Project, Gaibandha, Bangladesh. S. El Arifeen is with the International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh. U. Ashorn is with the Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland. J. Belizan is with the University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA. R.E. Black, P. Christian, A.B. Labrique, K. West, and L.S-F. Wu are with the Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA. L.M. De-Regil is with Nutrition International, Ottawa, Ontario, Canada. K. Dewey is with the University of California, Davis, Davis, California, USA. M.J. Dibley is with The University of Sydney, Sydney, New South Wales, Australia. W. Fawzi and C.R. Sudfeld are with the Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA. H. Friis and P. Kaestel are with the University of Copenhagen, Copenhagen, Denmark. E. Gomo is with the University of Zimbabwe, Harare, Zimbabwe. L. Huybregts is with the International Food Policy Research Institute, Washington, DC, USA. R. Jayatissa is with the Medical Research Institute, Colombo, Sri Lanka. S.K. Khatry is with the Nepal Nutrition Intervention Project-Sarlahi, Kathmandu, Nepal. P.W. Kolsteren is with Ghent University, Ghent, Belgium. M. McCauley is with the Centre for Maternal and Newborn Health, Liverpool School of Tropical Medicine, Liverpool, United Kingdom. B.M. Oaks is with the University of Rhode Island, Kingston, Rhode Island, USA. E. Piwoz is with the Bill & Melinda Gates Foundation, Seattle, Washington, USA. S. Shaikh is with the Society for Applied Studies, New Delhi, India. D.D. Soekarjo is with the Savica Consultancy, Jakarta, Indonesia. W. Urassa is with the Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania. N. Zagre is with the UNICEF Regional Office for West and Central Africa, Dakar, Senegal. L. Zeng and Z. Zhu are with the School of Public Health, Xi'an Jiaotong University Health Science Centre, Xi'an, Shaanxi, China
| | - Pravheen Thurairajah
- E.C. Keats, N. Akseer, P. Thurairajah, and Z.A. Bhutta are with the Centre for Global Child Health, The Hospital for Sick Children, Toronto, Ontario, Canada. S. Cousens is with the London School of Hygiene & Tropical Medicine, London, United Kingdom. Z.A. Bhutta is with the Dalla Lana School of Public Health, University of Toronto, Toronto, Canada. Z.A. Bhutta is with the Aga Khan University, Karachi, Pakistan. H. Ali is with the JiVitA Maternal and Child Nutrition and Health Research Project, Gaibandha, Bangladesh. S. El Arifeen is with the International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh. U. Ashorn is with the Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland. J. Belizan is with the University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA. R.E. Black, P. Christian, A.B. Labrique, K. West, and L.S-F. Wu are with the Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA. L.M. De-Regil is with Nutrition International, Ottawa, Ontario, Canada. K. Dewey is with the University of California, Davis, Davis, California, USA. M.J. Dibley is with The University of Sydney, Sydney, New South Wales, Australia. W. Fawzi and C.R. Sudfeld are with the Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA. H. Friis and P. Kaestel are with the University of Copenhagen, Copenhagen, Denmark. E. Gomo is with the University of Zimbabwe, Harare, Zimbabwe. L. Huybregts is with the International Food Policy Research Institute, Washington, DC, USA. R. Jayatissa is with the Medical Research Institute, Colombo, Sri Lanka. S.K. Khatry is with the Nepal Nutrition Intervention Project-Sarlahi, Kathmandu, Nepal. P.W. Kolsteren is with Ghent University, Ghent, Belgium. M. McCauley is with the Centre for Maternal and Newborn Health, Liverpool School of Tropical Medicine, Liverpool, United Kingdom. B.M. Oaks is with the University of Rhode Island, Kingston, Rhode Island, USA. E. Piwoz is with the Bill & Melinda Gates Foundation, Seattle, Washington, USA. S. Shaikh is with the Society for Applied Studies, New Delhi, India. D.D. Soekarjo is with the Savica Consultancy, Jakarta, Indonesia. W. Urassa is with the Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania. N. Zagre is with the UNICEF Regional Office for West and Central Africa, Dakar, Senegal. L. Zeng and Z. Zhu are with the School of Public Health, Xi'an Jiaotong University Health Science Centre, Xi'an, Shaanxi, China
| | - Simon Cousens
- E.C. Keats, N. Akseer, P. Thurairajah, and Z.A. Bhutta are with the Centre for Global Child Health, The Hospital for Sick Children, Toronto, Ontario, Canada. S. Cousens is with the London School of Hygiene & Tropical Medicine, London, United Kingdom. Z.A. Bhutta is with the Dalla Lana School of Public Health, University of Toronto, Toronto, Canada. Z.A. Bhutta is with the Aga Khan University, Karachi, Pakistan. H. Ali is with the JiVitA Maternal and Child Nutrition and Health Research Project, Gaibandha, Bangladesh. S. El Arifeen is with the International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh. U. Ashorn is with the Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland. J. Belizan is with the University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA. R.E. Black, P. Christian, A.B. Labrique, K. West, and L.S-F. Wu are with the Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA. L.M. De-Regil is with Nutrition International, Ottawa, Ontario, Canada. K. Dewey is with the University of California, Davis, Davis, California, USA. M.J. Dibley is with The University of Sydney, Sydney, New South Wales, Australia. W. Fawzi and C.R. Sudfeld are with the Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA. H. Friis and P. Kaestel are with the University of Copenhagen, Copenhagen, Denmark. E. Gomo is with the University of Zimbabwe, Harare, Zimbabwe. L. Huybregts is with the International Food Policy Research Institute, Washington, DC, USA. R. Jayatissa is with the Medical Research Institute, Colombo, Sri Lanka. S.K. Khatry is with the Nepal Nutrition Intervention Project-Sarlahi, Kathmandu, Nepal. P.W. Kolsteren is with Ghent University, Ghent, Belgium. M. McCauley is with the Centre for Maternal and Newborn Health, Liverpool School of Tropical Medicine, Liverpool, United Kingdom. B.M. Oaks is with the University of Rhode Island, Kingston, Rhode Island, USA. E. Piwoz is with the Bill & Melinda Gates Foundation, Seattle, Washington, USA. S. Shaikh is with the Society for Applied Studies, New Delhi, India. D.D. Soekarjo is with the Savica Consultancy, Jakarta, Indonesia. W. Urassa is with the Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania. N. Zagre is with the UNICEF Regional Office for West and Central Africa, Dakar, Senegal. L. Zeng and Z. Zhu are with the School of Public Health, Xi'an Jiaotong University Health Science Centre, Xi'an, Shaanxi, China
| | - Zulfiqar A Bhutta
- E.C. Keats, N. Akseer, P. Thurairajah, and Z.A. Bhutta are with the Centre for Global Child Health, The Hospital for Sick Children, Toronto, Ontario, Canada. S. Cousens is with the London School of Hygiene & Tropical Medicine, London, United Kingdom. Z.A. Bhutta is with the Dalla Lana School of Public Health, University of Toronto, Toronto, Canada. Z.A. Bhutta is with the Aga Khan University, Karachi, Pakistan. H. Ali is with the JiVitA Maternal and Child Nutrition and Health Research Project, Gaibandha, Bangladesh. S. El Arifeen is with the International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh. U. Ashorn is with the Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland. J. Belizan is with the University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA. R.E. Black, P. Christian, A.B. Labrique, K. West, and L.S-F. Wu are with the Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA. L.M. De-Regil is with Nutrition International, Ottawa, Ontario, Canada. K. Dewey is with the University of California, Davis, Davis, California, USA. M.J. Dibley is with The University of Sydney, Sydney, New South Wales, Australia. W. Fawzi and C.R. Sudfeld are with the Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA. H. Friis and P. Kaestel are with the University of Copenhagen, Copenhagen, Denmark. E. Gomo is with the University of Zimbabwe, Harare, Zimbabwe. L. Huybregts is with the International Food Policy Research Institute, Washington, DC, USA. R. Jayatissa is with the Medical Research Institute, Colombo, Sri Lanka. S.K. Khatry is with the Nepal Nutrition Intervention Project-Sarlahi, Kathmandu, Nepal. P.W. Kolsteren is with Ghent University, Ghent, Belgium. M. McCauley is with the Centre for Maternal and Newborn Health, Liverpool School of Tropical Medicine, Liverpool, United Kingdom. B.M. Oaks is with the University of Rhode Island, Kingston, Rhode Island, USA. E. Piwoz is with the Bill & Melinda Gates Foundation, Seattle, Washington, USA. S. Shaikh is with the Society for Applied Studies, New Delhi, India. D.D. Soekarjo is with the Savica Consultancy, Jakarta, Indonesia. W. Urassa is with the Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania. N. Zagre is with the UNICEF Regional Office for West and Central Africa, Dakar, Senegal. L. Zeng and Z. Zhu are with the School of Public Health, Xi'an Jiaotong University Health Science Centre, Xi'an, Shaanxi, China
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Paudyal N, Parajuli KR, Garcia Larsen V, Adhikari RK, Devkota MD, Rijal S, Chitekwe S, Torlesse H. A review of the maternal iron and folic acid supplementation programme in Nepal: Achievements and challenges. MATERNAL AND CHILD NUTRITION 2021; 18 Suppl 1:e13173. [PMID: 33763980 PMCID: PMC8770647 DOI: 10.1111/mcn.13173] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 10/19/2020] [Accepted: 01/27/2021] [Indexed: 12/04/2022]
Abstract
In the late 1990s, an estimated 75% of pregnant women in Nepal were anaemic. Although iron and folic acid (IFA) supplements were available free of charge, coverage among pregnant women was very low. In response, the Government of Nepal launched the Iron Intensification Programme (IIP) in 2003 to improve the coverage of IFA supplementation and anthelminthic treatment during pregnancy, as well as promote the utilization of antenatal care. This review examined how the IIP programme contributed to Nepal's success in increasing the consumption of IFA supplements during pregnancy. Nepal's cadre of Female Community Health Volunteers were engaged in the IIP to support the community‐based distribution of IFA supplements to pregnant women and complement IFA distribution through health facilities and outreach services. As a result, the country achieved a fourfold increase in the proportion of women who took IFA supplements during pregnancy between 2001 and 2016 (from 23% to 91%) and a 12‐fold increase in the proportion who took IFA supplements for at least 90 days during pregnancy (from 6% to 71%). The increase in coverage of IFA supplements accompanied an increase in the coverage of antenatal care during the same period. By 2016, the prevalence of anaemia in pregnant women decreased to 46%, highlighting the need to tackle other causes of anaemia and improve haemoglobin concentration before pregnancy, while maintaining the successful efforts to reach pregnant women with IFA supplements at the community level.
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Affiliation(s)
- Naveen Paudyal
- Nutrition Section, United Nations Children's Fund (UNICEF), Kathmandu, Nepal
| | - Kedar Raj Parajuli
- Department of Health Services, Nepal Ministry of Health and Population, Kathmandu, Nepal
| | - Vanessa Garcia Larsen
- International Health Department, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | | | | | - Sanjay Rijal
- Nutrition Section, United Nations Children's Fund (UNICEF), Kathmandu, Nepal
| | - Stanley Chitekwe
- Nutrition Section, United Nations Children's Fund (UNICEF), Kathmandu, Nepal
| | - Harriet Torlesse
- Nutrition Section, United Nations Children's Fund (UNICEF), Regional Office for South Asia, Kathmandu, Nepal
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20
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Kinshella MLW, Omar S, Scherbinsky K, Vidler M, Magee LA, von Dadelszen P, Moore SE, Elango R. Effects of Maternal Nutritional Supplements and Dietary Interventions on Placental Complications: An Umbrella Review, Meta-Analysis and Evidence Map. Nutrients 2021; 13:472. [PMID: 33573262 PMCID: PMC7912620 DOI: 10.3390/nu13020472] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2020] [Accepted: 01/26/2021] [Indexed: 01/08/2023] Open
Abstract
The placenta is a vital, multi-functional organ that acts as an interface between maternal and fetal circulation during pregnancy. Nutritional deficiencies during pregnancy alter placental development and function, leading to adverse pregnancy outcomes, such as pre-eclampsia, infants with small for gestational age and low birthweight, preterm birth, stillbirths and maternal mortality. Maternal nutritional supplementation may help to mitigate the risks, but the evidence base is difficult to navigate. The primary purpose of this umbrella review is to map the evidence on the effects of maternal nutritional supplements and dietary interventions on pregnancy outcomes related to placental disorders and maternal mortality. A systematic search was performed on seven electronic databases, the PROSPERO register and references lists of identified papers. The results were screened in a three-stage process based on title, abstract and full-text by two independent reviewers. Randomized controlled trial meta-analyses on the efficacy of maternal nutritional supplements or dietary interventions were included. There were 91 meta-analyses included, covering 23 types of supplements and three types of dietary interventions. We found evidence that supports supplementary vitamin D and/or calcium, omega-3, multiple micronutrients, lipid-based nutrients, and balanced protein energy in reducing the risks of adverse maternal and fetal health outcomes. However, these findings are limited by poor quality of evidence. Nutrient combinations show promise and support a paradigm shift to maternal dietary balance, rather than single micronutrient deficiencies, to improve maternal and fetal health. The review is registered at PROSPERO (CRD42020160887).
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Affiliation(s)
- Mai-Lei Woo Kinshella
- Department of Obstetrics and Gynaecology, BC Children’s and Women’s Hospital and University of British Columbia, Vancouver, BC V6Z 2K8, Canada; (M.-L.W.K.); (S.O.); (K.S.); (M.V.); (L.A.M.); (P.v.D.)
| | - Shazmeen Omar
- Department of Obstetrics and Gynaecology, BC Children’s and Women’s Hospital and University of British Columbia, Vancouver, BC V6Z 2K8, Canada; (M.-L.W.K.); (S.O.); (K.S.); (M.V.); (L.A.M.); (P.v.D.)
| | - Kerri Scherbinsky
- Department of Obstetrics and Gynaecology, BC Children’s and Women’s Hospital and University of British Columbia, Vancouver, BC V6Z 2K8, Canada; (M.-L.W.K.); (S.O.); (K.S.); (M.V.); (L.A.M.); (P.v.D.)
- Department of Pediatrics, University of British Columbia, Vancouver, BC V6H 0B3, Canada
| | - Marianne Vidler
- Department of Obstetrics and Gynaecology, BC Children’s and Women’s Hospital and University of British Columbia, Vancouver, BC V6Z 2K8, Canada; (M.-L.W.K.); (S.O.); (K.S.); (M.V.); (L.A.M.); (P.v.D.)
| | - Laura A. Magee
- Department of Obstetrics and Gynaecology, BC Children’s and Women’s Hospital and University of British Columbia, Vancouver, BC V6Z 2K8, Canada; (M.-L.W.K.); (S.O.); (K.S.); (M.V.); (L.A.M.); (P.v.D.)
- Department of Women & Children’s Health, King’s College London, London WC2R 2LS, UK;
| | - Peter von Dadelszen
- Department of Obstetrics and Gynaecology, BC Children’s and Women’s Hospital and University of British Columbia, Vancouver, BC V6Z 2K8, Canada; (M.-L.W.K.); (S.O.); (K.S.); (M.V.); (L.A.M.); (P.v.D.)
- Department of Women & Children’s Health, King’s College London, London WC2R 2LS, UK;
| | - Sophie E. Moore
- Department of Women & Children’s Health, King’s College London, London WC2R 2LS, UK;
- Medical Research Council Unit, The Gambia at the London School of Hygiene and Tropical Medicine, Fajara, P.O. Box 273 Banjul, The Gambia
| | - Rajavel Elango
- Department of Pediatrics, University of British Columbia, Vancouver, BC V6H 0B3, Canada
- School of Population and Public Health, University of British Columbia, Vancouver, BC V6T 1Z3, Canada
- Division of Neonatology, BC Women’s Hospital and Health Centre, Vancouver, BC V6H 3N1, Canada
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21
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Stein MM, Conery M, Magnaye KM, Clay SM, Billstrand C, Nicolae R, Naughton K, Ober C, Thompson EE. Sex-specific differences in peripheral blood leukocyte transcriptional response to LPS are enriched for HLA region and X chromosome genes. Sci Rep 2021; 11:1107. [PMID: 33441806 PMCID: PMC7806814 DOI: 10.1038/s41598-020-80145-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Accepted: 12/08/2020] [Indexed: 02/08/2023] Open
Abstract
Sex-specific differences in prevalence are well documented for many common, complex diseases, especially for immune-mediated diseases, yet the precise mechanisms through which factors associated with biological sex exert their effects throughout life are not well understood. We interrogated sex-specific transcriptional responses of peripheral blood leukocytes (PBLs) to innate immune stimulation by lipopolysaccharide (LPS) in 46 male and 66 female members of the Hutterite community, who practice a communal lifestyle. We identified 1217 autosomal and 54 X-linked genes with sex-specific responses to LPS, as well as 71 autosomal and one X-linked sex-specific expression quantitative trait loci (eQTLs). Despite a similar proportion of the 15 HLA genes responding to LPS compared to all expressed autosomal genes, there was a significant over-representation of genes with sex by treatment interactions among HLA genes. We also observed an enrichment of sex-specific differentially expressed genes in response to LPS for X-linked genes compared to autosomal genes, suggesting that HLA and X-linked genes may disproportionately contribute to sex disparities in risk for immune-mediated diseases.
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Affiliation(s)
- Michelle M Stein
- Department of Human Genetics, University of Chicago, Chicago, IL, 60637, USA
| | - Mitch Conery
- Department of Human Genetics, University of Chicago, Chicago, IL, 60637, USA
| | - Kevin M Magnaye
- Department of Human Genetics, University of Chicago, Chicago, IL, 60637, USA
| | - Selene M Clay
- Department of Human Genetics, University of Chicago, Chicago, IL, 60637, USA
| | | | - Raluca Nicolae
- Department of Human Genetics, University of Chicago, Chicago, IL, 60637, USA
| | - Katherine Naughton
- Department of Human Genetics, University of Chicago, Chicago, IL, 60637, USA
| | - Carole Ober
- Department of Human Genetics, University of Chicago, Chicago, IL, 60637, USA
| | - Emma E Thompson
- Department of Human Genetics, University of Chicago, Chicago, IL, 60637, USA.
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Novel sex-specific influence of parental factors on small-for-gestational-age newborns. Sci Rep 2020; 10:19226. [PMID: 33154528 PMCID: PMC7644766 DOI: 10.1038/s41598-020-76196-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Accepted: 10/23/2020] [Indexed: 11/09/2022] Open
Abstract
Since fetal programming is sex-specific, there may also be sex-specific in parental influences on newborn birth weight. We aimed to investigate the influence of parental factors on small-for-gestational-age (SGA) infants of different sexes. Based on a pre-pregnancy cohort, multivariate logistic regression was used. 2275 couples were included for analysis. Significant associations were observed among paternal height, pre-pregnancy body mass index (BMI), and SGA in male infants; among maternal height, pre-pregnancy BMI, and SGA in female infants, and among other maternal factors and SGA in both male and female infants. Such sex specificity may be related to genetic, epigenetic, or hormonal influences between parents and infants. In conclusion, there is a sex specificity in the effect of parental height and pre-pregnancy BMI on SGA. The data suggest that future studies on infants should consider the sex-specific differences between the effects of genetic or environmental factors and infants.
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Oh C, Keats EC, Bhutta ZA. Vitamin and Mineral Supplementation During Pregnancy on Maternal, Birth, Child Health and Development Outcomes in Low- and Middle-Income Countries: A Systematic Review and Meta-Analysis. Nutrients 2020; 12:E491. [PMID: 32075071 PMCID: PMC7071347 DOI: 10.3390/nu12020491] [Citation(s) in RCA: 93] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 01/29/2020] [Accepted: 02/05/2020] [Indexed: 12/14/2022] Open
Abstract
Almost two billion people are deficient in key vitamins and minerals, mostly women and children in low- and middle-income countries (LMICs). Deficiencies worsen during pregnancy due to increased energy and nutritional demands, causing adverse outcomes in mother and child, but could be mitigated by interventions like micronutrient supplementation. To our knowledge, this is the first systematic review that aimed to compile evidence from both efficacy and effectiveness trials, evaluating different supplementation interventions on maternal, birth, child health, and developmental outcomes. We evaluated randomized controlled trials and quasi-experimental studies published since 1995 in peer-reviewed and grey literature that assessed the effects of calcium, vitamin A, iron, vitamin D, and zinc supplementation compared to placebo/no treatment; iron-folic (IFA) supplementation compared to folic acid only; multiple micronutrient (MMN) supplementation compared to IFA; and lipid-based nutrient supplementation (LNS) compared to MMN supplementation. Seventy-two studies, which collectively involved 314 papers (451,723 women), were included. Meta-analyses showed improvement in several key birth outcomes, such as preterm birth, small-for-gestational age (SGA) and low birthweight with MMN supplementation, compared to IFA. MMN also improved child outcomes, including diarrhea incidence and retinol concentration, which are findings not previously reported. Across all comparisons, micronutrient supplementation had little to no effect on mortality (maternal, neonatal, perinatal, and infant) outcomes, which is consistent with other systematic reviews. IFA supplementation showed notable improvement in maternal anemia and the reduction in low birthweight, whereas LNS supplementation had no apparent effect on outcomes; further research that compares LNS and MMN supplementation could help understand differences with these commodities. For single micronutrient supplementation, improvements were noted in only a few outcomes, mainly pre-eclampsia/eclampsia (calcium), maternal anemia (iron), preterm births (vitamin D), and maternal serum zinc concentration (zinc). These findings highlight that micronutrient-specific supplementation should be tailored to specific groups or needs for maximum benefit. In addition, they further contribute to the ongoing discourse of choosing antenatal MMN over IFA as the standard of care in LMICs.
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Affiliation(s)
- Christina Oh
- Centre for Global Child Health, The Hospital for Sick Children, Toronto, ON M5G 0A4, Canada; (C.O.); (E.C.K.)
| | - Emily C. Keats
- Centre for Global Child Health, The Hospital for Sick Children, Toronto, ON M5G 0A4, Canada; (C.O.); (E.C.K.)
| | - Zulfiqar A. Bhutta
- Centre for Global Child Health, The Hospital for Sick Children, Toronto, ON M5G 0A4, Canada; (C.O.); (E.C.K.)
- Centre of Excellence in Women and Child’s Health, Aga Khan University, Karachi 74800, Pakistan
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Dhaded SM, Hambidge KM, Ali SA, Somannavar M, Saleem S, Pasha O, Khan U, Herekar V, Vernekar S, Kumar S. Y, Westcott JE, Thorsten VR, Sridhar A, Das A, McClure E, Derman RJ, Goldenberg RL, Koso-Thomas M, Goudar SS, Krebs NF. Preconception nutrition intervention improved birth length and reduced stunting and wasting in newborns in South Asia: The Women First Randomized Controlled Trial. PLoS One 2020; 15:e0218960. [PMID: 31995570 PMCID: PMC6988936 DOI: 10.1371/journal.pone.0218960] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Accepted: 05/24/2019] [Indexed: 11/22/2022] Open
Abstract
South Asia has >50% of the global burden of low birth weight (LBW). The objective was to determine the extent to which maternal nutrition interventions commenced before conception or in the 1st trimester improved fetal growth in this region. This was a secondary analysis of combined newborn anthropometric data for the South Asian sites (India and Pakistan) in the Women First Preconception Maternal Nutrition Trial. Participants were 972 newborn of mothers who were poor, rural, unselected on basis of nutritional status, and had been randomized to receive a daily lipid-based micronutrient supplement commencing ≥3 months prior to conception (Arm 1), in the 1st trimester (Arm 2), or not at all (Arm 3). An additional protein-energy supplement was provided if BMI <20 kg/m2 or gestational weight gain was less than guidelines. Gestational age was established in the 1st trimester and newborn anthropometry obtained <48-hours post-delivery. Mean differences at birth between Arm 1 vs. 3 were length +5.3mm and weight +89g. Effect sizes (ES) and relative risks (RR) with 95% CI for Arm 1 vs. 3 were: length-for-age Z-score (LAZ) +0.29 (0.11-0.46, p = 0.0011); weight-for-age Z-score (WAZ) +0.22 (0.07-0.37, p = 0.0043); weight-to-length-ratio-for-age Z-score (WLRAZ) +0.27 (0.06-0.48, p = 0.0133); LAZ<-2, 0.56 (0.38-0.82, p = 0.0032); WAZ <-2, 0.68 (0.53-0.88, p = 0.0028); WLRAZ <-2, 0.76 (0.64-0.89, p = 0.0011); small-for-gestational-age (SGA), 0.74 (0.66-0.83, p<0.0001); low birth weight 0.81 (0.66-1.00, p = 0.0461). For Arm 2 vs. 3, LAZ, 0.21 (0.04-0.38); WAZ <-2, 0.70 (0.53-0.92); and SGA, 0.88 (0.79-0.97) were only marginally different. ES or RR did not differ for preterm birth for either Arm 1 vs. 3 or 2 vs. 3. In conclusion, point estimates for both continuous and binary anthropometric outcomes were consistently more favorable when maternal nutrition supplements were commenced ≥3 months prior to conception indicating benefits to fetal growth of improving women's nutrition in this population.
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Affiliation(s)
- Sangappa M. Dhaded
- Women’s and Children’s Health Research Unit, KLE Academy of Higher Education and Research, Jawaharlal Nehru Medical College, Belagavi, Karnataka, India
| | - K. Michael Hambidge
- Pediatric Nutrition, University of Colorado School of Medicine, Aurora, Colorado, United States of America
| | | | - Manjunath Somannavar
- Women’s and Children’s Health Research Unit, KLE Academy of Higher Education and Research, Jawaharlal Nehru Medical College, Belagavi, Karnataka, India
| | | | | | | | - Veena Herekar
- Women’s and Children’s Health Research Unit, KLE Academy of Higher Education and Research, Jawaharlal Nehru Medical College, Belagavi, Karnataka, India
| | - Sunil Vernekar
- Women’s and Children’s Health Research Unit, KLE Academy of Higher Education and Research, Jawaharlal Nehru Medical College, Belagavi, Karnataka, India
| | - Yogesh Kumar S.
- Women’s and Children’s Health Research Unit, KLE Academy of Higher Education and Research, Jawaharlal Nehru Medical College, Belagavi, Karnataka, India
| | - Jamie E. Westcott
- Pediatric Nutrition, University of Colorado School of Medicine, Aurora, Colorado, United States of America
| | | | - Amaanti Sridhar
- RTI International, Durham, North Carolina, United States of America
| | - Abhik Das
- RTI International, Durham, North Carolina, United States of America
| | | | - Richard J. Derman
- Thomas Jefferson University, Philadelphia, Pennsylvania, United States of America
| | - Robert L. Goldenberg
- Department of Obstetrics/Gynecology, Columbia University Medical Center, New York, New York, United States of America
| | | | - Shivaprasad S. Goudar
- Women’s and Children’s Health Research Unit, KLE Academy of Higher Education and Research, Jawaharlal Nehru Medical College, Belagavi, Karnataka, India
| | - Nancy F. Krebs
- Pediatric Nutrition, University of Colorado School of Medicine, Aurora, Colorado, United States of America
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Marphatia AA, Wells JC, Reid AM, Borja MC, Manandhar DS, Sen A, Saville N, Devakumar D, Osrin D, Prost A, Dulal S. The association of maternal nutrition and children's pre-primary experience with over-age attendance in secondary school: evidence from lowland Nepal. INTERNATIONAL JOURNAL OF EDUCATIONAL RESEARCH 2020; 99:101491. [PMID: 32255913 PMCID: PMC7104891 DOI: 10.1016/j.ijer.2019.10.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 09/14/2019] [Accepted: 10/01/2019] [Indexed: 06/11/2023]
Abstract
•Over-age attendance is increasing but remains under-studied in South Asia.•Children fall behind by entering pre-primary or primary late, and by repeating a grade during/after primary school.•Rural location, thin and uneducated mothers predicted late pre-primary entry.•Educational research and interventions need to focus on the earlier time-point of pre-primary.•Improving maternal nutrition and education may ensure timely progression of children in school.
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Affiliation(s)
| | | | - Alice M. Reid
- Department of Geography, University of Cambridge, Cambridge, UK
| | | | | | - Aman Sen
- Suaahara II, Helen Keller International, Chakupat, Lalitpur, Nepal
| | - Naomi Saville
- Institute for Global Health, University College London, UK
| | | | - David Osrin
- Institute for Global Health, University College London, UK
| | - Audrey Prost
- Institute for Global Health, University College London, UK
| | - Sophiya Dulal
- Mother and Infant Research Activities (MIRA), Kathmandu, Nepal
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James PT, Jawla O, Mohammed NI, Ceesay K, Akemokwe FM, Sonko B, Sise EA, Prentice AM, Silver MJ. A novel nutritional supplement to reduce plasma homocysteine in nonpregnant women: A randomised controlled trial in The Gambia. PLoS Med 2019; 16:e1002870. [PMID: 31408467 PMCID: PMC6691988 DOI: 10.1371/journal.pmed.1002870] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Accepted: 07/08/2019] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Infant DNA methylation profiles are associated with their mother's periconceptional nutritional status. DNA methylation relies on nutritional inputs for one-carbon metabolic pathways, including the efficient recycling of homocysteine. This randomised controlled trial in nonpregnant women in rural Gambia tests the efficacy of a novel nutritional supplement designed to improve one-carbon-related nutrient status by reducing plasma homocysteine, and assesses its potential future use in preconception trials. METHODS AND FINDINGS We designed a novel drink powder based on determinants of plasma homocysteine in the target population and tested it in a three-arm, randomised, controlled trial. Nonpregnant women aged between 18 and 45 from the West Kiang region of The Gambia were randomised in a 1:1:1 allocation to 12 weeks daily supplementation of either (a) a novel drink powder (4 g betaine, 800 μg folic acid, 5.2 μg vitamin B12, and 2.8 mg vitamin B2), (b) a widely used multiple micronutrient tablet (United Nations Multiple Micronutrient Preparation [UNIMMAP]) containing 15 micronutrients, or (c) no intervention. The trial was conducted between March and July 2018. Supplementation was observed daily. Fasted venepuncture samples were collected at baseline, midline (week 5), and endline (week 12) to measure plasma homocysteine. We used linear regression models to determine the difference in homocysteine between pairs of trial arms at midline and endline, adjusted for baseline homocysteine, age, and body mass index (BMI). Blood pressure and pulse were measured as secondary outcomes. Two hundred and ninety-eight eligible women were enrolled and randomised. Compliance was >97.8% for both interventions. At endline (our primary endpoint), the drink powder and UNIMMAP reduced mean plasma homocysteine by 23.6% (-29.5 to -17.1) and 15.5% (-21.2 to -9.4), respectively (both p < 0.001), compared with the controls. Compared with UNIMMAP, the drink powder reduced mean homocysteine by 8.8% (-15.8 to -1.2; p = 0.025). The effects were stronger at midline. There was no effect of either intervention on blood pressure or pulse compared with the control at endline. Self-reported adverse events (AEs) were similar in both intervention arms. There were two serious AEs reported over the trial duration, both in the drink powder arm, but judged to be unrelated to the intervention. Limitations of the study include the use of a single targeted metabolic outcome, homocysteine. CONCLUSIONS The trial confirms that dietary supplements can influence metabolic pathways that we have shown in previous studies to predict offspring DNA methylation. Both supplements reduced homocysteine effectively and remain potential candidates for future epigenetic trials in pregnancy in rural Gambia. TRIAL REGISTRATION Clinicaltrials.gov Reference NCT03431597.
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Affiliation(s)
- Philip T. James
- Medical Research Council Unit The Gambia at the London School of Hygiene and Tropical Medicine, London, United Kingdom
- * E-mail:
| | - Ousubie Jawla
- Medical Research Council Unit The Gambia at the London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Nuredin I. Mohammed
- Medical Research Council Unit The Gambia at the London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Kabiru Ceesay
- Medical Research Council Unit The Gambia at the London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Fatai M. Akemokwe
- Medical Research Council Unit The Gambia at the London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Bakary Sonko
- Medical Research Council Unit The Gambia at the London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Ebrima A. Sise
- Medical Research Council Unit The Gambia at the London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Andrew M. Prentice
- Medical Research Council Unit The Gambia at the London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Matt J. Silver
- Medical Research Council Unit The Gambia at the London School of Hygiene and Tropical Medicine, London, United Kingdom
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Nutritional service needs of pregnant and lactating adolescent girls in Trans-Mara East Sub-County, Narok County: focus on access and utilization of nutritional advice and services. BMC Pregnancy Childbirth 2019; 19:229. [PMID: 31277585 PMCID: PMC6612069 DOI: 10.1186/s12884-019-2391-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 06/30/2019] [Indexed: 11/27/2022] Open
Abstract
Background An understanding of the association between adolescent nutrition, adolescent pregnancy and their quest for healthcare services may elucidate a basis for intervention and formulation of programs that enhance post-partum and increase the lifespan of the newborn, improve the quality of life and bridge morbidity, mortality and healthcare-associated cost. However, the nutritional needs of pregnant and lactating adolescent girls aged below 10 years resident in Trans Mara East Sub-County, Kenya remained unestablished. The objective of this study was to assess the nutritional needs of pregnant and lactating adolescent girls (under 19) when accessing and utilizing nutritional advice and services in Trans-Mara East Sub-County, Narok County. Methods The study adopted a cross-sectional approach that employed mixed methods with both quantitative and qualitative research approaches. Cochran formula was applied to arrive at a minimum of 291 households. Probability proportionate to size sampling techniques using cluster and simple random methods were used to practically access adolescents who are pregnant or lactating. Data was collected using questionnaires, in-depth interview and Focus Group Discussion. Quantitative data was analyzed descriptively using frequencies and inferentially using odds ratio and z-test. Framework analysis was employed to analyze qualitative data. p ≤ 0.05 was considered statistically significant. Results The study revealed that access of pieces of nutritional-related advice represented by 67.8% was significantly higher than expected frequency of 50%. Nutrition supplementation, food fortification or blending and complementary feeding were significantly below the expectant frequency (p < 0.01) of 50%. Nutrition service areas such as provision and collection of vitamin A and IFAS were significantly lower than expected frequency (p < 0.01). Conclusions The most widely utilized were nutrition services that falls within the preventive-focused services followed by curative-focused services. Nutritionist and nurse more likely to increase overall utilization of nutrition services. Electronic supplementary material The online version of this article (10.1186/s12884-019-2391-7) contains supplementary material, which is available to authorized users.
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Bourassa MW, Osendarp SJ, Adu‐Afarwuah S, Ahmed S, Ajello C, Bergeron G, Black R, Christian P, Cousens S, de Pee S, Dewey KG, Arifeen SE, Engle‐Stone R, Fleet A, Gernand AD, Hoddinott J, Klemm R, Kraemer K, Kupka R, McLean E, Moore SE, Neufeld LM, Persson L, Rasmussen KM, Shankar AH, Smith E, Sudfeld CR, Udomkesmalee E, Vosti SA. Review of the evidence regarding the use of antenatal multiple micronutrient supplementation in low- and middle-income countries. Ann N Y Acad Sci 2019; 1444:6-21. [PMID: 31134643 PMCID: PMC6852202 DOI: 10.1111/nyas.14121] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Revised: 04/26/2019] [Accepted: 04/26/2019] [Indexed: 12/22/2022]
Abstract
Inadequate micronutrient intakes are relatively common in low- and middle-income countries (LMICs), especially among pregnant women, who have increased micronutrient requirements. This can lead to an increase in adverse pregnancy and birth outcomes. This review presents the conclusions of a task force that set out to assess the prevalence of inadequate micronutrient intakes and adverse birth outcomes in LMICs; the data from trials comparing multiple micronutrient supplements (MMS) that contain iron and folic acid (IFA) with IFA supplements alone; the risks of reaching the upper intake levels with MMS; and the cost-effectiveness of MMS compared with IFA. Recent meta-analyses demonstrate that MMS can reduce the risks of preterm birth, low birth weight, and small for gestational age in comparison with IFA alone. An individual-participant data meta-analysis also revealed even greater benefits for anemic and underweight women and female infants. Importantly, there was no increased risk of harm for the pregnant women or their infants with MMS. These data suggest that countries with inadequate micronutrient intakes should consider supplementing pregnant women with MMS as a cost-effective method to reduce the risk of adverse birth outcomes.
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Affiliation(s)
| | - Saskia J.M. Osendarp
- Osendarp NutritionBerkel & Rodenrijsthe Netherlands
- Division of Human Nutrition and HealthWageningen UniversityWageningenthe Netherlands
| | - Seth Adu‐Afarwuah
- Department of Nutrition and Food ScienceUniversity of GhanaLegonAccraGhana
| | - Saima Ahmed
- The New York Academy of SciencesNew YorkNew York
| | - Clayton Ajello
- The Vitamin Angels Alliance, Inc.Santa BarbaraCalifornia
| | | | - Robert Black
- Johns Hopkins Bloomberg School of Public HealthBaltimoreMaryland
| | - Parul Christian
- Johns Hopkins Bloomberg School of Public HealthBaltimoreMaryland
- Bill & Melinda Gates FoundationSeattleWashington
| | - Simon Cousens
- London School of Hygiene and Tropical MedicineLondonUnited Kingdom
| | - Saskia de Pee
- Division of Human Nutrition and HealthWageningen UniversityWageningenthe Netherlands
- UN World Food ProgrammeRomeItaly
- Friedman School of Nutrition Science and PolicyTufts UniversityBostonMassachusetts
| | - Kathryn G. Dewey
- Department of NutritionUniversity of CaliforniaDavisDavisCalifornia
| | - Shams El Arifeen
- International Centre for Diarrhoeal Disease ResearchDhakaBangladesh
| | | | | | | | - John Hoddinott
- Division of Nutritional SciencesCornell UniversityIthacaNew York
| | - Rolf Klemm
- The Vitamin Angels Alliance, Inc.Santa BarbaraCalifornia
- Helen Keller InternationalBaltimoreMaryland
| | | | | | | | - Sophie E. Moore
- Department of Women and Children's HealthKing's College LondonLondonUnited Kingdom
| | | | - Lars‐Åke Persson
- London School of Hygiene and Tropical MedicineAddis AbabaEthiopia
| | | | - Anuraj H. Shankar
- Department of Global Health and PopulationHarvard T.H. Chan School of Public HealthBostonMassachusetts
- Summit Institute of DevelopmentMataramIndonesia
| | - Emily Smith
- Bill & Melinda Gates FoundationSeattleWashington
- Department of Global Health and PopulationHarvard T.H. Chan School of Public HealthBostonMassachusetts
| | - Christopher R. Sudfeld
- Department of Global Health and PopulationHarvard T.H. Chan School of Public HealthBostonMassachusetts
| | | | - Stephen A. Vosti
- Department of NutritionUniversity of CaliforniaDavisDavisCalifornia
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Abstract
BACKGROUND Multiple-micronutrient (MMN) deficiencies often coexist among women of reproductive age in low- and middle-income countries. They are exacerbated in pregnancy due to the increased demands of the developing fetus, leading to potentially adverse effects on the mother and baby. A consensus is yet to be reached regarding the replacement of iron and folic acid supplementation with MMNs. Since the last update of this Cochrane Review in 2017, evidence from several trials has become available. The findings of this review will be critical to inform policy on micronutrient supplementation in pregnancy. OBJECTIVES To evaluate the benefits of oral multiple-micronutrient supplementation during pregnancy on maternal, fetal and infant health outcomes. SEARCH METHODS For this 2018 update, on 23 February 2018 we searched Cochrane Pregnancy and Childbirth's Trials Register, ClinicalTrials.gov, the WHO International Clinical Trials Registry Platform (ICTRP), and reference lists of retrieved studies. We also contacted experts in the field for additional and ongoing trials. SELECTION CRITERIA All prospective randomised controlled trials evaluating MMN supplementation with iron and folic acid during pregnancy and its effects on pregnancy outcomes were eligible, irrespective of language or the publication status of the trials. We included cluster-randomised trials, but excluded quasi-randomised trials. Trial reports that were published as abstracts were eligible. DATA COLLECTION AND ANALYSIS Two review authors independently assessed trials for inclusion and risk of bias, extracted data and checked them for accuracy. We assessed the quality of the evidence using the GRADE approach. MAIN RESULTS We identified 21 trials (involving 142,496 women) as eligible for inclusion in this review, but only 20 trials (involving 141,849 women) contributed data. Of these 20 trials, 19 were conducted in low- and middle-income countries and compared MMN supplements with iron and folic acid to iron, with or without folic acid. One trial conducted in the UK compared MMN supplementation with placebo. In total, eight trials were cluster-randomised.MMN with iron and folic acid versus iron, with or without folic acid (19 trials)MMN supplementation probably led to a slight reduction in preterm births (average risk ratio (RR) 0.95, 95% confidence interval (CI) 0.90 to 1.01; 18 trials, 91,425 participants; moderate-quality evidence), and babies considered small-for-gestational age (SGA) (average RR 0.92, 95% CI 0.88 to 0.97; 17 trials; 57,348 participants; moderate-quality evidence), though the CI for the pooled effect for preterm births just crossed the line of no effect. MMN reduced the number of newborn infants identified as low birthweight (LBW) (average RR 0.88, 95% CI 0.85 to 0.91; 18 trials, 68,801 participants; high-quality evidence). We did not observe any differences between groups for perinatal mortality (average RR 1.00, 95% CI 0.90 to 1.11; 15 trials, 63,922 participants; high-quality evidence). MMN supplementation led to slightly fewer stillbirths (average RR 0.95, 95% CI 0.86 to 1.04; 17 trials, 97,927 participants; high-quality evidence) but, again, the CI for the pooled effect just crossed the line of no effect. MMN supplementation did not have an important effect on neonatal mortality (average RR 1.00, 95% CI 0.89 to 1.12; 14 trials, 80,964 participants; high-quality evidence). We observed little or no difference between groups for the other maternal and pregnancy outcomes: maternal anaemia in the third trimester (average RR 1.04, 95% CI 0.94 to 1.15; 9 trials, 5912 participants), maternal mortality (average RR 1.06, 95% CI 0.72 to 1.54; 6 trials, 106,275 participants), miscarriage (average RR 0.99, 95% CI 0.94 to 1.04; 12 trials, 100,565 participants), delivery via a caesarean section (average RR 1.13, 95% CI 0.99 to 1.29; 5 trials, 12,836 participants), and congenital anomalies (average RR 1.34, 95% CI 0.25 to 7.12; 2 trials, 1958 participants). However, MMN supplementation probably led to a reduction in very preterm births (average RR 0.81, 95% CI 0.71 to 0.93; 4 trials, 37,701 participants). We were unable to assess a number of prespecified, clinically important outcomes due to insufficient or non-available data.When we assessed primary outcomes according to GRADE criteria, the quality of evidence for the review overall was moderate to high. We graded the following outcomes as high quality: LBW, perinatal mortality, stillbirth, and neonatal mortality. The outcomes of preterm birth and SGA we graded as moderate quality; both were downgraded for funnel plot asymmetry, indicating possible publication bias.We carried out sensitivity analyses excluding trials with high levels of sample attrition (> 20%). We found that results were consistent with the main analyses for all outcomes. We explored heterogeneity through subgroup analyses by maternal height, maternal body mass index (BMI), timing of supplementation, dose of iron, and MMN supplement formulation (UNIMMAP versus non-UNIMMAP). There was a greater reduction in preterm births for women with low BMI and among those who took non-UNIMMAP supplements. We also observed subgroup differences for maternal BMI and maternal height for SGA, indicating greater impact among women with greater BMI and height. Though we found that MMN supplementation made little or no difference to perinatal mortality, the analysis demonstrated substantial statistical heterogeneity. We explored this heterogeneity using subgroup analysis and found differences for timing of supplementation, whereby higher impact was observed with later initiation of supplementation. For all other subgroup analyses, the findings were inconclusive.MMN versus placebo (1 trial)A single trial in the UK found little or no important effect of MMN supplementation on preterm births, SGA, or LBW but did find a reduction in maternal anaemia in the third trimester (RR 0.66, 95% CI 0.51 to 0.85), when compared to placebo. This trial did not measure our other outcomes. AUTHORS' CONCLUSIONS Our findings suggest a positive impact of MMN supplementation with iron and folic acid on several birth outcomes. MMN supplementation in pregnancy led to a reduction in babies considered LBW, and probably led to a reduction in babies considered SGA. In addition, MMN probably reduced preterm births. No important benefits or harms of MMN supplementation were found for mortality outcomes (stillbirths, perinatal and neonatal mortality). These findings may provide some basis to guide the replacement of iron and folic acid supplements with MMN supplements for pregnant women residing in low- and middle-income countries.
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Affiliation(s)
- Emily C Keats
- The Hospital for Sick ChildrenCentre for Global Child HealthTorontoCanada
| | - Batool A Haider
- Alkermes, Inc.Department of Health Economics and Outcomes Research852 Winter StreetWalthamMAUSA02451
| | - Emily Tam
- The Hospital for Sick ChildrenCentre for Global Child HealthTorontoCanada
| | - Zulfiqar A Bhutta
- The Hospital for Sick ChildrenCentre for Global Child HealthTorontoCanada
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Sudfeld CR, Smith ER. New Evidence Should Inform WHO Guidelines on Multiple Micronutrient Supplementation in Pregnancy. J Nutr 2019; 149:359-361. [PMID: 30773589 PMCID: PMC6398379 DOI: 10.1093/jn/nxy279] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 09/21/2018] [Accepted: 10/10/2018] [Indexed: 11/28/2022] Open
Abstract
Recent data from an individual patient data (IPD) meta-analysis of 17 randomized control trials including >100,000 women living in low- and middle-income countries found that multiple micronutrient supplementation (MMS) in pregnancy reduced the risk of low birth weight, preterm birth, and being born small for gestational age. Further, MMS reduced the risk of neonatal and infant mortality for females, and there was no evidence of increased risk among the 26 subgroups examined. The 2016 WHO antenatal care guidelines, which were released before the IPD meta-analysis, did not universally recommend MMS, noting: "There is some evidence of additional benefit … but there is also some evidence of risk." The guidelines suggest that MMS may increase the risk of neonatal mortality based on an exploratory subgroup analysis of 6 randomized trials. However, we identified several issues with this subgroup analysis. In this report we correct and update the subgroup analysis and show that there is no evidence that MMS increases the risk of neonatal mortality. There is growing scientific consensus that MMS containing iron and folic acid (IFA) is superior to IFA alone. The WHO guidelines currently state that "policy-makers in populations with a high prevalence of nutritional deficiencies might consider the benefits of MMN [multiple micronutrient] supplements on maternal health to outweigh the disadvantages, and may choose to give MMN supplements that include iron and folic acid." This equivocal guidance has created confusion about the best course of action for public health programs in low- and middle-income countries. Given the new evidence, WHO should review their statements regarding the potential neonatal mortality risks and re-evaluate the overall potential benefits of implementing MMS as a public health program.
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Affiliation(s)
- Christopher R Sudfeld
- Department of Global Health and Population, Harvard TH Chan School of Public Health, Boston, MA
| | - Emily R Smith
- Department of Global Health and Population, Harvard TH Chan School of Public Health, Boston, MA,Bill & Melinda Gates Foundation, Seattle, WA,Address correspondence to ERS (e-mail: )
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Associations of stunting at 2 years with body composition and blood pressure at 8 years of age: longitudinal cohort analysis from lowland Nepal. Eur J Clin Nutr 2018; 73:302-310. [PMID: 30154534 PMCID: PMC6368558 DOI: 10.1038/s41430-018-0291-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 08/03/2018] [Accepted: 08/03/2018] [Indexed: 01/27/2023]
Abstract
BACKGROUND Stunting remains a very common form of child malnutrition worldwide, particularly in South Asian populations. There is poor understanding of how it develops and how it is associated with subsequent phenotype. SUBJECTS/METHODS We used data from a longitudinal cohort of children (n = 841) in lowland Nepal to investigate associations of stunting at 2 years with maternal traits and early growth patterns, and with body size and composition, kidney dimensions by ultrasound, lung function by spirometry and blood pressure (BP) at 8 years. RESULTS Compared to non-stunted children, children stunted at 2 years came from poorer families and had shorter, lighter mothers. They tended to have higher birth order, were born smaller, and remained shorter, lighter and thinner at 8 years. They had lower leg length, lean and fat masses, smaller kidneys, and reduced lung function (all p < 0.0001). These differences persisted with smaller magnitude after adjusting for current height, maternal height and education, family assets and birth order. Stunting was not associated with BP. DISCUSSION Stunting developed on an inter-generational timescale in this population and its risk increased with birth order. At 8 years, children stunted at 2 years had deficits in tissue masses and some aspects of physical function that were only partially attributable to their persisting short height and maternal phenotype. This suggests that the early stunting is associated with greater deficits in long-term outcomes than would be expected from the persistent short stature alone.
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Kastro S, Demissie T, Yohannes B. Low birth weight among term newborns in Wolaita Sodo town, South Ethiopia: a facility based cross-sectional study. BMC Pregnancy Childbirth 2018; 18:160. [PMID: 29751785 PMCID: PMC5948808 DOI: 10.1186/s12884-018-1789-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Accepted: 04/26/2018] [Indexed: 11/12/2022] Open
Abstract
Background In low income countries, many low birth weight newborns often miss the chance for survival sooner or later. Others who survive would also face increased risks in later life. Though not adequately documented in Ethiopia, maternal factors pose the main risk. This study was aimed to estimate the proportion of low birth weight among term singletons without congenital malformations and factors associated with it in Wolaita Sodo town in South Ethiopia. Methods We did a facility based survey involving 432 postpartum women with their term newborns. Data was collected through face to face interview from March to April in 2016. The outcome measure was newborn birth weight. Bivariate logistic regression was applied to look for crude associations. Multivariate logistic regression analysis was done to adjust for potential confounders to identify independent predictors. Adjusted Odds Ratio (AOR) and 95% confidence intervals (CI), and statistical significance at P < 0.05 were reported. Results The proportion of term low birth weight was 8.1% in the study area. Women who had less education (AOR = 6.23; 95% CI = 1.68, 23.1), house wives (AOR = 5.85; 95% CI = 1.40, 24.3) and not frequently consuming fruits during pregnancy (AOR 11.3; 95% CI = 1.98, 64.9) had a higher risk of having term low birth weight newborns. We documented a lesser odds of those from rural settings to have low birth weight newborns as compared to their counter urban equivalents (AOR = 0.06; 95% CI = 0.006, 0.6). Conclusions Dietary counselling to pregnant mothers specific diet and nutrition including fruit diets in particular might contribute to reduce the risk of term low birth weight. Better education might have enabled women to prefer diets and their job engagements might also have capacitated them to decide on dietary preferences. Electronic supplementary material The online version of this article (10.1186/s12884-018-1789-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Samson Kastro
- School of Public Health, Wolaita Sodo University, Wolaita Sodo, Ethiopia.
| | - Tsegaye Demissie
- School of Public Health, Wolaita Sodo University, Wolaita Sodo, Ethiopia
| | - Bereket Yohannes
- School of Public Health, Wolaita Sodo University, Wolaita Sodo, Ethiopia.,School of Public Health, Hawassa University, Hawassa, Ethiopia.,Centre for International Health, University of Bergen, Bergen, Norway
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Saville NM, Shrestha BP, Style S, Harris-Fry H, Beard BJ, Sen A, Jha S, Rai A, Paudel V, Sah R, Paudel P, Copas A, Bhandari B, Neupane R, Morrison J, Gram L, Pulkki-Brännström AM, Skordis-Worrall J, Basnet M, de Pee S, Hall A, Harthan J, Thondoo M, Klingberg S, Messick J, Manandhar DS, Osrin D, Costello A. Impact on birth weight and child growth of Participatory Learning and Action women's groups with and without transfers of food or cash during pregnancy: Findings of the low birth weight South Asia cluster-randomised controlled trial (LBWSAT) in Nepal. PLoS One 2018; 13:e0194064. [PMID: 29742136 PMCID: PMC5942768 DOI: 10.1371/journal.pone.0194064] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Accepted: 02/20/2018] [Indexed: 01/24/2023] Open
Abstract
BACKGROUND Undernutrition during pregnancy leads to low birthweight, poor growth and inter-generational undernutrition. We did a non-blinded cluster-randomised controlled trial in the plains districts of Dhanusha and Mahottari, Nepal to assess the impact on birthweight and weight-for-age z-scores among children aged 0-16 months of community-based participatory learning and action (PLA) women's groups, with and without food or cash transfers to pregnant women. METHODS We randomly allocated 20 clusters per arm to four arms (average population/cluster = 6150). All consenting married women aged 10-49 years, who had not had tubal ligation and whose husbands had not had vasectomy, were monitored for missed menses. Between 29 Dec 2013 and 28 Feb 2015 we recruited 25,092 pregnant women to surveillance and interventions: PLA alone (n = 5626); PLA plus food (10 kg/month of fortified wheat-soya 'Super Cereal', n = 6884); PLA plus cash (NPR750≈US$7.5/month, n = 7272); control (existing government programmes, n = 5310). 539 PLA groups discussed and implemented strategies to improve low birthweight, nutrition in pregnancy and hand washing. Primary outcomes were birthweight within 72 hours of delivery and weight-for-age z-scores at endline (age 0-16 months). Only children born to permanent residents between 4 June 2014 and 20 June 2015 were eligible for intention to treat analyses (n = 10936), while in-migrating women and children born before interventions had been running for 16 weeks were excluded. Trial status: completed. RESULTS In PLA plus food/cash arms, 94-97% of pregnant women attended groups and received a mean of four transfers over their pregnancies. In the PLA only arm, 49% of pregnant women attended groups. Due to unrest, the response rate for birthweight was low at 22% (n = 2087), but response rate for endline nutritional and dietary measures exceeded 83% (n = 9242). Compared to the control arm (n = 464), mean birthweight was significantly higher in the PLA plus food arm by 78·0 g (95% CI 13·9, 142·0; n = 626) and not significantly higher in PLA only and PLA plus cash arms by 28·9 g (95% CI -37·7, 95·4; n = 488) and 50·5 g (95% CI -15·0, 116·1; n = 509) respectively. Mean weight-for-age z-scores of children aged 0-16 months (average age 9 months) sampled cross-sectionally at endpoint, were not significantly different from those in the control arm (n = 2091). Differences in weight for-age z-score were as follows: PLA only -0·026 (95% CI -0·117, 0·065; n = 2095); PLA plus cash -0·045 (95% CI -0·133, 0·044; n = 2545); PLA plus food -0·033 (95% CI -0·121, 0·056; n = 2507). Amongst many secondary outcomes tested, compared with control, more institutional deliveries (OR: 1.46 95% CI 1.03, 2.06; n = 2651) and less colostrum discarding (OR:0.71 95% CI 0.54, 0.93; n = 2548) were found in the PLA plus food arm but not in PLA alone or in PLA plus cash arms. INTERPRETATION Food supplements in pregnancy with PLA women's groups increased birthweight more than PLA plus cash or PLA alone but differences were not sustained. Nutrition interventions throughout the thousand-day period are recommended. TRIAL REGISTRATION ISRCTN75964374.
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Affiliation(s)
- Naomi M. Saville
- Institute for Global Health, University College London, London, United Kingdom
| | | | - Sarah Style
- Institute for Global Health, University College London, London, United Kingdom
| | - Helen Harris-Fry
- Institute for Global Health, University College London, London, United Kingdom
| | - B. James Beard
- Institute for Global Health, University College London, London, United Kingdom
| | - Aman Sen
- Mother and Infant Research Activities (MIRA), Kathmandu, Nepal
| | - Sonali Jha
- Mother and Infant Research Activities (MIRA), Kathmandu, Nepal
| | - Anjana Rai
- Mother and Infant Research Activities (MIRA), Kathmandu, Nepal
| | - Vikas Paudel
- Mother and Infant Research Activities (MIRA), Kathmandu, Nepal
| | - Raghbendra Sah
- Mother and Infant Research Activities (MIRA), Kathmandu, Nepal
| | - Puskar Paudel
- Mother and Infant Research Activities (MIRA), Kathmandu, Nepal
| | - Andrew Copas
- Institute for Global Health, University College London, London, United Kingdom
- MRC Clinical Trials Unit, University College London, London, United Kingdom
| | - Bishnu Bhandari
- Mother and Infant Research Activities (MIRA), Kathmandu, Nepal
| | - Rishi Neupane
- Mother and Infant Research Activities (MIRA), Kathmandu, Nepal
| | - Joanna Morrison
- Institute for Global Health, University College London, London, United Kingdom
| | - Lu Gram
- Institute for Global Health, University College London, London, United Kingdom
| | | | | | | | | | - Andrew Hall
- Save the Children UK, London, United Kingdom
| | - Jayne Harthan
- Institute for Global Health, University College London, London, United Kingdom
| | - Meelan Thondoo
- Institute for Global Health, University College London, London, United Kingdom
| | - Sonja Klingberg
- Institute for Global Health, University College London, London, United Kingdom
| | - Janice Messick
- Institute for Global Health, University College London, London, United Kingdom
| | | | - David Osrin
- Institute for Global Health, University College London, London, United Kingdom
| | - Anthony Costello
- Institute for Global Health, University College London, London, United Kingdom
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Dulal S, Liégeois F, Osrin D, Kuczynski A, Manandhar DS, Shrestha BP, Sen A, Saville N, Devakumar D, Prost A. Does antenatal micronutrient supplementation improve children's cognitive function? Evidence from the follow-up of a double-blind randomised controlled trial in Nepal. BMJ Glob Health 2018. [PMID: 29527341 PMCID: PMC5841533 DOI: 10.1136/bmjgh-2017-000527] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Introduction Multiple Micronutrient (MMN) supplementation during pregnancy can decrease the proportion of infants born low birth weight and small for gestational age. Supplementation could also enhance children's cognitive function by improving access to key nutrients during fetal brain development and increasing birth weight, especially in areas where undernutrition is common. We tested the hypothesis that children whose mothers received MMN supplementation during pregnancy would have higher intelligence in early adolescence compared with those receiving Iron and Folic Acid (IFA) only. Methods We followed up children in Nepal, whose mothers took part in a double-blind Randomised Controlled Trial (RCT) that compared the effects on birth weight and gestational duration of antenatal MMN versus IFA supplementation. We assessed children's Full Scale Intelligence Quotient (FSIQ) using the Universal Non-verbal Intelligence Test (UNIT), and their executive function using the counting Stroop test. The parent trial was registered as ISRCTN88625934. Results We identified 813 (76%) of the 1069 children whose mothers took part in the parent trial. We found no differences in FSIQ at 12 years between MMN and IFA groups (absolute difference in means (diff): 1.25, 95% CI -0.57 to 3.06). Similarly, there were no differences in mean UNIT memory (diff: 1.41, 95% CI -0.48 to 3.30), reasoning (diff: 1.17, 95% CI -0.72 to 3.06), symbolic (diff: 0.97, 95% CI -0.67 to 2.60) or non-symbolic quotients (diff: 1.39, 95% CI -0.60 to 3.38). Conclusion Our follow-up of a double-blind RCT in Nepal found no evidence of benefit from antenatal MMN compared with IFA for children's overall intelligence and executive function at 12 years.
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Affiliation(s)
- Sophiya Dulal
- Mother and Infant Research Activities (MIRA), Kathmandu, Nepal
| | | | - David Osrin
- Institute for Global Health, University College London, London, UK
| | - Adam Kuczynski
- Department of Clinical Neuropsychology, Great Ormond Street Children's Hospital, London, UK
| | | | - Bhim P Shrestha
- Mother and Infant Research Activities (MIRA), Kathmandu, Nepal
| | - Aman Sen
- Mother and Infant Research Activities (MIRA), Kathmandu, Nepal
| | - Naomi Saville
- Institute for Global Health, University College London, London, UK
| | - Delan Devakumar
- Institute for Global Health, University College London, London, UK
| | - Audrey Prost
- Institute for Global Health, University College London, London, UK
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Women's Ideas about the Health Effects of Household Air Pollution, Developed through Focus Group Discussions and Artwork in Southern Nepal. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:ijerph15020248. [PMID: 29389909 PMCID: PMC5858317 DOI: 10.3390/ijerph15020248] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2017] [Revised: 01/22/2018] [Accepted: 01/29/2018] [Indexed: 11/17/2022]
Abstract
Household air pollution is a major cause of ill health, but few solutions have been effective to date. While many quantitative studies have been conducted, few have explored the lived experiences and perceptions of women who do the cooking, and as a result are those most exposed to household air pollution. In this study, we worked with groups of home cooks, and sought to use art as a means of engaging them in discussions of how household air pollution from cooking affects their lives. In the Terai district of southern Nepal, we held four focus groups that included 26 local women from urban and peri-urban areas, as well as six local artists. The women then met approximately weekly over four months, and produced images related to air pollution. Transcripts from the focus groups were reviewed independently by two authors, who initially categorised data deductively to pre-defined nodes, and subsequently inductively reviewed emergent themes. Women identified a number of health effects from air pollution. The main physical effects related to the eye and the respiratory system, and women and young children were seen as most vulnerable. The psychosocial effects of air pollution included reduced food intake by women and lethargy. Suggested solutions included modifications to the cooking process, changing the location of stoves, and increasing ventilation. The main barriers were financial. The lived experiences of women in southern Nepal around the problem of air pollution offers a more nuanced and context-specific understanding of the perceptions and challenges of addressing air pollution, which can be used to inform future interventions.
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Adu-Afarwuah S, Young RT, Lartey A, Okronipa H, Ashorn P, Ashorn U, Zeilani M, Dewey KG. Supplementation during pregnancy with small-quantity lipid-based nutrient supplements or multiple micronutrients, compared with iron and folic acid, increases women's urinary iodine concentration in semiurban Ghana: A randomized controlled trial. MATERNAL AND CHILD NUTRITION 2017; 14:e12570. [PMID: 29210520 PMCID: PMC5900724 DOI: 10.1111/mcn.12570] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Revised: 10/24/2017] [Accepted: 11/01/2017] [Indexed: 12/12/2022]
Abstract
There is little information on whether prenatal multiple micronutrient (MMN) supplements containing iodine affect women's iodine status. In the International Lipid‐based Nutrient Supplements DYAD‐Ghana trial, we aimed to assess women's urinary iodine concentration (UIC, μg/L) during pregnancy, as one of the planned secondary outcomes. Women (n = 1,320) <20 weeks of gestation were randomized to consume 60 mg iron and 400 μg folic acid per day (iron and folic acid [IFA]); 18 vitamins and minerals including 250 μg iodine per day (MMN); or 20 g/day of small‐quantity lipid‐based nutrient supplements (LNS) with the same and additional 4 vitamins and minerals as the MMN (LNS). In a subsample (n = 295), we tested differences in groups' geometric mean UICs at 36 weeks of gestation controlling for baseline UIC and compared the geometric means (approximately median UICs) with the World Health Organization (WHO) cut‐offs: median UIC <150, 150–249, and ≥500 reflecting low, adequate, and excessive iodine intakes, respectively. At baseline, overall median UIC was 137. At 36 weeks of gestation, controlling for baseline UIC, geometric mean (95% confidence interval) UICs of the MMN (161 [133, 184]) and LNS (158 [132, 185]) groups did not differ; both values were significantly greater (overall p = .004) than that of the IFA group (116 [101, 135]). The median UICs of the MMN and LNS groups were within the WHO “adequate” range, whereas that of the IFA group was below the WHO adequate range. In this setting, supplementation during pregnancy with small‐quantity LNS or MMN providing iodine at the WHO‐recommended dose, compared with IFA, increases the likelihood of adequate iodine status.
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Affiliation(s)
- Seth Adu-Afarwuah
- Department of Nutrition and Food Science, University of Ghana, Accra, Ghana
| | - Rebecca T Young
- Program in International and Community Nutrition, Department of Nutrition, University of California, Davis, California, USA
| | - Anna Lartey
- Department of Nutrition and Food Science, University of Ghana, Accra, Ghana
| | - Harriet Okronipa
- Department of Nutrition and Food Science, University of Ghana, Accra, Ghana
| | - Per Ashorn
- Centre for Child Health Research, University of Tampere Faculty of Medicine and Life Sciences, and Tampere University Hospital, Department of Pediatrics, Tampere, Finland
| | - Ulla Ashorn
- Centre for Child Health Research, University of Tampere Faculty of Medicine and Life Sciences, and Tampere University Hospital, Department of Pediatrics, Tampere, Finland
| | | | - Kathryn G Dewey
- Program in International and Community Nutrition, Department of Nutrition, University of California, Davis, California, USA
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Heidkamp R, Clermont A, Phillips E. Modeling the Impact of Nutrition Interventions on Birth Outcomes in the Lives Saved Tool (LiST). J Nutr 2017; 147:2188S-2193S. [PMID: 28904112 DOI: 10.3945/jn.116.243667] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Revised: 11/18/2016] [Accepted: 01/13/2017] [Indexed: 11/14/2022] Open
Abstract
Background: Negative birth outcomes [small-for-gestational age (SGA) and preterm birth (PTB)] are common in low- and middle-income countries and have important subsequent health and developmental impacts on children. There are numerous nutritional and non-nutritional interventions that can decrease the risk of negative birth outcomes and reduce subsequent risk of mortality and growth faltering.Objective: The objective of this article was to review the current evidence for the impact of nutritional interventions in pregnancy [calcium supplementation, iron and folic acid supplementation, multiple micronutrient (MMN) supplementation, and balanced energy supplementation (BES)] and risk factors (maternal anemia) on birth outcomes, with the specific goal of determining which intervention-outcome linkages should be included in the Lives Saved Tool (LiST) software.Methods: A literature search was conducted by using the WHO e-Library of Evidence for Nutrition Actions as the starting point. Recent studies, meta-analyses, and systematic reviews were reviewed for inclusion on the basis of their relevance to LiST.Results: On the basis of the available scientific evidence, the following linkages were found to be supported for inclusion in LiST: calcium supplementation on PTB (12% reduction), MMN supplementation on SGA (9% reduction), and BES on SGA (21% reduction among food-insecure women).Conclusions: The inclusion of these linkages in LiST will improve the utility of the model for users who seek to estimate the impact of antenatal nutrition interventions on birth outcomes. Scaling up these interventions should lead to downstream impacts in reducing stunting and child mortality.
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Affiliation(s)
- Rebecca Heidkamp
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD; and
| | - Adrienne Clermont
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD; and
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Smith ER, Shankar AH, Wu LSF, Aboud S, Adu-Afarwuah S, Ali H, Agustina R, Arifeen S, Ashorn P, Bhutta ZA, Christian P, Devakumar D, Dewey KG, Friis H, Gomo E, Gupta P, Kæstel P, Kolsteren P, Lanou H, Maleta K, Mamadoultaibou A, Msamanga G, Osrin D, Persson LÅ, Ramakrishnan U, Rivera JA, Rizvi A, Sachdev HPS, Urassa W, West KP, Zagre N, Zeng L, Zhu Z, Fawzi WW, Sudfeld CR. Modifiers of the effect of maternal multiple micronutrient supplementation on stillbirth, birth outcomes, and infant mortality: a meta-analysis of individual patient data from 17 randomised trials in low-income and middle-income countries. Lancet Glob Health 2017; 5:e1090-e1100. [PMID: 29025632 DOI: 10.1016/s2214-109x(17)30371-6] [Citation(s) in RCA: 140] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Revised: 07/24/2017] [Accepted: 08/18/2017] [Indexed: 10/18/2022]
Abstract
BACKGROUND Micronutrient deficiencies are common among women in low-income and middle-income countries. Data from randomised trials suggest that maternal multiple micronutrient supplementation decreases the risk of low birthweight and potentially improves other infant health outcomes. However, heterogeneity across studies suggests influence from effect modifiers. We aimed to identify individual-level modifiers of the effect of multiple micronutrient supplements on stillbirth, birth outcomes, and infant mortality in low-income and middle-income countries. METHODS This two-stage meta-analysis of individual patient included data from 17 randomised controlled trials done in 14 low-income and middle-income countries, which compared multiple micronutrient supplements containing iron-folic acid versus iron-folic acid alone in 112 953 pregnant women. We generated study-specific estimates and pooled subgroup estimates using fixed-effects models and assessed heterogeneity between subgroups with the χ2 test for heterogeneity. We did sensitivity analyses using random-effects models, stratifying by iron-folic acid dose, and exploring individual study effect. FINDINGS Multiple micronutrient supplements containing iron-folic acid provided significantly greater reductions in neonatal mortality for female neonates compared with male neonates than did iron-folic acid supplementation alone (RR 0·85, 95% CI 0·75-0·96 vs 1·06, 0·95-1·17; p value for interaction 0·007). Multiple micronutrient supplements resulted in greater reductions in low birthweight (RR 0·81, 95% CI 0·74-0·89; p value for interaction 0·049), small-for-gestational-age births (0·92, 0·87-0·97; p=0·03), and 6-month mortality (0·71, 0·60-0·86; p=0·04) in anaemic pregnant women (haemoglobin <110g/L) as compared with non-anaemic pregnant women. Multiple micronutrient supplements also had a greater effect on preterm births among underweight pregnant women (BMI <18·5 kg/m2; RR 0·84, 95% CI 0·78-0·91; p=0·01). Initiation of multiple micronutrient supplements before 20 weeks gestation provided greater reductions in preterm birth (RR 0·89, 95% CI 0·85-0·93; p=0·03). Generally, the survival and birth outcome effects of multiple micronutrient supplementation were greater with high adherence (≥95%) to supplementation. Multiple micronutrient supplements did not significantly increase the risk of stillbirth or neonatal, 6-month, or infant mortality, neither overall or in any of the 26 examined subgroups. INTERPRETATION Antenatal multiple micronutrient supplements improved survival for female neonates and provided greater birth-outcome benefits for infants born to undernourished and anaemic pregnant women. Early initiation in pregnancy and high adherence to multiple micronutrient supplements also provided greater overall benefits. Studies should now aim to elucidate the mechanisms accounting for differences in the effect of antenatal multiple micronutrient supplements on infant health by maternal nutrition status and sex. FUNDING None.
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Affiliation(s)
- Emily R Smith
- Department of Global Health and Population, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Division of Gastroenterology, Hepatology and Nutrition, Boston Children's Hospital, Boston, MA, USA
| | - Anuraj H Shankar
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Summit Institute of Development, Mataram, Indonesia
| | - Lee S-F Wu
- The JiVitA Project, Johns Hopkins University in Bangladesh, Gaibandha, Bangladesh; Center for Human Nutrition, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Said Aboud
- Department of Microbiology and Immunology, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - Seth Adu-Afarwuah
- Department of Nutrition and Food Science, University of Ghana, Legon, Accra, Ghana
| | - Hasmot Ali
- The JiVitA Project, Johns Hopkins University in Bangladesh, Gaibandha, Bangladesh; Center for Human Nutrition, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Rina Agustina
- Summit Institute of Development, Mataram, Indonesia; Department of Nutrition, Faculty of Medicine, Universitas Indonesia - Dr. Cipto Mangunkusumo General Hospital, Jakarta, Indonesia
| | - Shams Arifeen
- International Centre for Diarrhoeal Diseases Research Bangladesh (ICDDR,B), Dhaka, Bangladesh
| | - Per Ashorn
- Centre for Child Health Research and Department of Paediatrics, University of Tampere School of Medicine and Tampere University Hospital, Tampere, Finland
| | - Zulfiqar A Bhutta
- Center for Global Child Health, Hospital for Sick Children, Toronto, ON, Canada; Center of Excellence in Women and Child Health, The Aga Khan University, Karachi, Pakistan
| | - Parul Christian
- The JiVitA Project, Johns Hopkins University in Bangladesh, Gaibandha, Bangladesh; Center for Human Nutrition, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | | | - Kathryn G Dewey
- Department of Nutrition and Program in International and Community Nutrition, University of California-Davis, Davis, CA, USA
| | - Henrik Friis
- Department of Nutrition Exercise and Sports, University of Copenhagen, Copenhagen, Denmark
| | - Exnevia Gomo
- College of Health Sciences, University of Zimbabwe, Harare, Zimbabwe
| | - Piyush Gupta
- Department of Pediatrics, University College of Medical Sciences, Delhi, India
| | - Pernille Kæstel
- Department of Nutrition Exercise and Sports, University of Copenhagen, Copenhagen, Denmark
| | - Patrick Kolsteren
- Nutrition and Child Health Unit, Department of Public Health, Prince Leopold Institute of Tropical Medicine, Antwerp, Belgium; Faculty of Bio-science engineering, Ghent University, Belgium
| | - Hermann Lanou
- Institut de Recherche en Sciences de la Santé, Ministry of Scientific Research and Innovation, Ouagadougou, Burkina Faso
| | - Kenneth Maleta
- School of Public Health and Family Medicine, University of Malawi College of Medicine, Blantyre, Malawi
| | | | - Gernard Msamanga
- Department of Community Health, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | | | - Lars-Åke Persson
- Department of Women's and Children's Health, International Maternal and Child Health, Uppsala University, Uppsala, Sweden
| | - Usha Ramakrishnan
- Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, USA
| | - Juan A Rivera
- Instituto Nacional de Salud Publica, Cuernavaca, Mexico
| | - Arjumand Rizvi
- Center of Excellence in Women and Child Health, The Aga Khan University, Karachi, Pakistan
| | - H P S Sachdev
- Pediatric and Clinical Epidemiology Unit, Sitar am Bhartia Institute of Science and Research, New Delhi, India
| | - Willy Urassa
- Department of Microbiology and Immunology, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - Keith P West
- The JiVitA Project, Johns Hopkins University in Bangladesh, Gaibandha, Bangladesh; Center for Human Nutrition, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Noel Zagre
- UNICEF Regional Office for West and Central Africa, Dakar, Senegal
| | - Lingxia Zeng
- Department of Epidemiology and Biostatistics, School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi Province, China
| | - Zhonghai Zhu
- Department of Epidemiology and Biostatistics, School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi Province, China
| | - Wafaie W Fawzi
- Department of Global Health and Population, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Christopher R Sudfeld
- Department of Global Health and Population, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
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Kozuki N, Katz J, Clermont A, Walker N. New Option in the Lives Saved Tool (LiST) Allows for the Conversion of Prevalence of Small-for-Gestational-Age and Preterm Births to Prevalence of Low Birth Weight. J Nutr 2017; 147:2141S-2146S. [PMID: 28904115 DOI: 10.3945/jn.117.247767] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Revised: 02/14/2017] [Accepted: 03/16/2017] [Indexed: 11/14/2022] Open
Abstract
Background: The Lives Saved Tool (LiST) is a software model that estimates the health impact of scaling up interventions on maternal and child health. One of the outputs of the model is an estimation of births by fetal size [appropriate-for-gestational-age (AGA) or small-for-gestational-age (SGA)] and by length of gestation (term or preterm), both of which influence birth weight. LiST uses prevalence estimates of births in these categories rather than of birth weight categories, because the causes and health consequences differ between SGA and preterm birth. The World Health Assembly nutrition plan, however, has set the prevalence of low birth weight (LBW) as a key indicator, with a specific goal of a 30% reduction in LBW prevalence by 2025.Objective: The objective of the study is to develop an algorithm that will allow LiST users to estimate changes in prevalence of LBW on the basis of changes in coverage of interventions and the resulting impact on prevalence estimates of SGA and preterm births.Methods: The study used 13 prospective cohort data sets from low- and middle-income countries (LMICs; 4 from sub-Saharan Africa, 5 from Asia, and 4 from Latin America), with reliable measures of gestational age and birth weight. By calculating the proportion of LBW births among SGA and preterm births in each data set and meta-analyzing those estimates, we calculated region-specific pooled rates of LBW among SGA and preterm births.Results: In Africa, 0.4% of term-AGA, 36.7% of term-SGA, 49.3% of preterm-AGA, and 100.0% of preterm-SGA births were LBW. In Asia, 1.0% of term-SGA, 47.0% of term-SGA, 36.7% of preterm-AGA, and 100.0% of preterm-SGA births were LBW. In Latin America, 0.4% of term-AGA, 34.4% of term-SGA, 32.3% of preterm-AGA, and 100.0% of preterm-SGA births were LBW.Conclusions: The simple conversion factor proposed here allows for the estimation of LBW within LiST for most LMICs. This will allow LiST users to approximate the impact of their health programs on LBW prevalence via the impact on SGA and preterm prevalence.
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Affiliation(s)
- Naoko Kozuki
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
| | - Joanne Katz
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
| | - Adrienne Clermont
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
| | - Neff Walker
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
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Multi-micronutrient supplementation during pregnancy for prevention of maternal anaemia and adverse birth outcomes in a high-altitude area: a prospective cohort study in rural Tibet of China. Br J Nutr 2017; 118:431-440. [DOI: 10.1017/s000711451700229x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
AbstractAnaemia during pregnancy, characterised by Hb <110 g/l, is a specific risk factor for adverse maternal and perinatal outcomes in developing countries. The objective of this study was to determine the effectiveness of daily antenatal supplementation with multiple micronutrients (MMN) compared with folic acid (FA) on the occurrence of anaemia among pregnant women and their infants’ health in a high-altitude area. A prospective cohort study was carried out in two rural counties in Tibet from 2007 to 2012. A total of 1149 eligible pregnant women were allocated daily supplementation with FA in one county and MMN containing a recommended allowance of twenty-three vitamins and minerals in another county starting ≤24 weeks of gestation and continuing until delivery. Compared with the FA group, prenatal supplementation with MMN was significantly associated with reduced odds of anaemia in the third trimester. This was demonstrated in the primary outcome, with an adjusted OR (AOR) of 0·63; 95 % CI 0·45, 0·88 and P=0·007 and also reduced odds of preterm delivery (AOR: 0·31; 95 % CI 0·15, 0·61; P=0·001). There was no difference between MMN and FA groups in mean birth weight (adjusted mean difference: 36·78; 95 % CI −19·42, 92·98 g; P=0·200), whereas MMN supplementation significantly reduced the odds of low-birth weight (LBW) babies (AOR: 0·58; 95 % CI 0·36, 0·91; P=0·019). In conclusion, the antenatal MMN supplementation in rural Tibet is associated with a reduction of maternal anaemia in the third trimester, and may potentially decrease the risk of preterm delivery and LBW babies.
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Lee AC, Kozuki N, Cousens S, Stevens GA, Blencowe H, Silveira MF, Sania A, Rosen HE, Schmiegelow C, Adair LS, Baqui AH, Barros FC, Bhutta ZA, Caulfield LE, Christian P, Clarke SE, Fawzi W, Gonzalez R, Humphrey J, Huybregts L, Kariuki S, Kolsteren P, Lusingu J, Manandhar D, Mongkolchati A, Mullany LC, Ndyomugyenyi R, Nien JK, Roberfroid D, Saville N, Terlouw DJ, Tielsch JM, Victora CG, Velaphi SC, Watson-Jones D, Willey BA, Ezzati M, Lawn JE, Black RE, Katz J. Estimates of burden and consequences of infants born small for gestational age in low and middle income countries with INTERGROWTH-21 st standard: analysis of CHERG datasets. BMJ 2017; 358:j3677. [PMID: 28819030 PMCID: PMC5558898 DOI: 10.1136/bmj.j3677] [Citation(s) in RCA: 224] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Objectives To estimate small for gestational age birth prevalence and attributable neonatal mortality in low and middle income countries with the INTERGROWTH-21st birth weight standard.Design Secondary analysis of data from the Child Health Epidemiology Reference Group (CHERG), including 14 birth cohorts with gestational age, birth weight, and neonatal follow-up. Small for gestational age was defined as infants weighing less than the 10th centile birth weight for gestational age and sex with the multiethnic, INTERGROWTH-21st birth weight standard. Prevalence of small for gestational age and neonatal mortality risk ratios were calculated and pooled among these datasets at the regional level. With available national level data, prevalence of small for gestational age and population attributable fractions of neonatal mortality attributable to small for gestational age were estimated.Setting CHERG birth cohorts from 14 population based sites in low and middle income countries.Main outcome measures In low and middle income countries in the year 2012, the number and proportion of infants born small for gestational age; number and proportion of neonatal deaths attributable to small for gestational age; the number and proportion of neonatal deaths that could be prevented by reducing the prevalence of small for gestational age to 10%.Results In 2012, an estimated 23.3 million infants (uncertainty range 17.6 to 31.9; 19.3% of live births) were born small for gestational age in low and middle income countries. Among these, 11.2 million (0.8 to 15.8) were term and not low birth weight (≥2500 g), 10.7 million (7.6 to 15.0) were term and low birth weight (<2500 g) and 1.5 million (0.9 to 2.6) were preterm. In low and middle income countries, an estimated 606 500 (495 000 to 773 000) neonatal deaths were attributable to infants born small for gestational age, 21.9% of all neonatal deaths. The largest burden was in South Asia, where the prevalence was the highest (34%); about 26% of neonatal deaths were attributable to infants born small for gestational age. Reduction of the prevalence of small for gestational age from 19.3% to 10.0% in these countries could reduce neonatal deaths by 9.2% (254 600 neonatal deaths; 164 800 to 449 700).Conclusions In low and middle income countries, about one in five infants are born small for gestational age, and one in four neonatal deaths are among such infants. Increased efforts are required to improve the quality of care for and survival of these high risk infants in low and middle income countries.
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Affiliation(s)
- Anne Cc Lee
- Department of Pediatric Newborn Medicine, Brigham and Women's Hospital, 75 Francis Street, Boston, MA 02115, USA
- Harvard Medical School, 25 Shattuck St, Boston, MA 02115, USA
| | - Naoko Kozuki
- International Rescue Committee, 1730 M Street NW, Suite 505, Washington, DC 20036, USA
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe St., Baltimore, MD 21205, USA
| | - Simon Cousens
- Facuty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London WC1E 7HT, UK
- Maternal, Adolescent, Reproductive, and Child Health (MARCH) Centre, London School of Hygiene and Tropical Medicine, London WC1E 7HT, UK
| | - Gretchen A Stevens
- Department of Information, Evidence and Research, World Health Organization (WHO), Geneva, Switzerland, CH-1211
| | - Hannah Blencowe
- Facuty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London WC1E 7HT, UK
- Maternal, Adolescent, Reproductive, and Child Health (MARCH) Centre, London School of Hygiene and Tropical Medicine, London WC1E 7HT, UK
| | - Mariangela F Silveira
- Programa de Pós-graduacao em Epidemiologia, Universidade Federal de Pelotas, Rua Marechal Deodoro 1160, 30 piso, Centro, CEP 96020-220, Pelotas, RS, Brazil
| | - Ayesha Sania
- Mailman School of Public Health, Columbia University, 722 W 168th St, New York, NY 10032
| | - Heather E Rosen
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe St., Baltimore, MD 21205, USA
| | - Christentze Schmiegelow
- Centre for Medical Parasitology, Department of Immunology and Microbiology, University of Copenhagen, Oester Farimagsgade 5, 1014 Copenhagen K, Denmark
| | - Linda S Adair
- Department of Nutrition, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, 135 Dauer Drive, Chapel Hill, NC 27599, USA
- Carolina Population Center, University of North Carolina at Chapel Hill, 137 E. Franklin, Chapel Hill, NC 27516, USA
| | - Abdullah H Baqui
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe St., Baltimore, MD 21205, USA
| | - Fernando C Barros
- Programa de Pós-graduação em Saúde e Comportamento, Universidade Católica de Pelotas, Félix da Cunha, 412, CEP 96010-000, Centro, Pelotas, RS, Brazil
| | - Zulfiqar A Bhutta
- Center for Global Child Health, Hospital for Sick Children, 686 Bay Street, Toronto, ON, M5G A04, Canada
- Centre of Excellence in Women and Child Health, Aga Khan University, Stadium Road PO Box 3500, Karachi 74800, India
| | - Laura E Caulfield
- Center for Human Nutrition, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe Street, W2041, Baltimore, MD 21205 USA
| | - Parul Christian
- Women's Nutrition, Bill and Melinda Gates Foundation, Seattle, WA 98102, USA
| | - Siân E Clarke
- Faculty of Infectious Disease and Tropical Diseases, London School of Hygiene and Tropical Medicine, London WC1E 7HT, UK
- Malaria Centre, London School of Hygiene and Tropical Medicine, London WC1E 7HT, UK
| | - Wafaie Fawzi
- Department of Global Health and Population, Harvard School of Public Health, 677 Huntington Ave, Boston, MA 02115, USA
- Department of Nutrition, Harvard School of Public Health, 677 Huntington Ave, Boston, MA 02115, USA
- Department of Epidemiology, Harvard School of Public Health, 677 Huntington Ave, Boston, MA 02115, USA
| | - Rogelio Gonzalez
- Pontificia Universidad Católica de Chile, School of Medicine, Avenida Libertador General Bernardo O'Higgins #340, Santiago, Chile
- Clínica Santa María, Avenida Santa María 0410 Providencia, Santiago, Chile
| | - Jean Humphrey
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe St., Baltimore, MD 21205, USA
- Center for Human Nutrition, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe Street, W2041, Baltimore, MD 21205 USA
- Zvitambo Institute for Maternal and Child Health Research, 16 Lauchlan Road, Meyrick Park, Harare, Zimbabwe
| | - Lieven Huybregts
- Department of Food Safety and Food Quality, Ghent University, Coupure Links 653 - 9000 Ghent, Belgium
- Poverty, Health and Nutrition Division, International Food Policy Research Institute, 2033 K St, NW Washington, DC 20006-1002, USA
| | - Simon Kariuki
- Kenya Medical Research Institute, Centre for Global Health Research, PO Box 1578-40100, Kisumu, Kenya
- Centers for Disease Control and Prevention Kenya, Off Kisumu-Busia Highway, PO Box 1578-40100, Kisumu, Kenya
| | - Patrick Kolsteren
- Department of Food Safety and Food Quality, Ghent University, Coupure Links 653 - 9000 Ghent, Belgium
| | - John Lusingu
- National Institute for Medical Research, PO Box 5004, Tanga, Tanzania
- University of Copenhagen, Denmark
| | - Dharma Manandhar
- Mother and Infant Research Activities (MIRA), YB Bhawan, Thapathali, Kathmandu 921, Nepal
| | - Aroonsri Mongkolchati
- ASEAN Institute for Health Development, Mahidol University, 999 Phuttamonthon 4 Rd, Salaya, Nakhon Pathom 73170, Thailand
| | - Luke C Mullany
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe St., Baltimore, MD 21205, USA
| | - Richard Ndyomugyenyi
- Vector Control Division, Ministry of Health, Uganda, Plot 6 Lourdel Rd, Nakasero, Kampala, Uganda
| | - Jyh Kae Nien
- Fetal Maternal Medicine Unit, Clinica Davila, Avenida Recoleta 464, Santiago, Chile
- Faculty of Medicine, Universidad de Los Andes, Avda San Carlos De Apoquindo 2200, Santiago, Chile
| | - Dominique Roberfroid
- Belgian Health Care Knowledge Centre, Boulevard du Jardin Botanique 55, Brussels, Belgium
| | - Naomi Saville
- Mother and Infant Research Activities (MIRA), YB Bhawan, Thapathali, Kathmandu 921, Nepal
- Institute for Global Health, University College London Institute of Child Health, London WC1N 1EH, UK
| | - Dianne J Terlouw
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, L3 5QA, UK
- Malawi-Liverpool-Wellcome Trust Clinical Research Programme, College of Medicine, University of Malawi, PO Box 30096, Chichiri, Blantyre 3, Malawi
| | - James M Tielsch
- Department of Global Health, Milken Institute School of Public Health, George Washington University, 950 New Hampshire Ave, NW, Suite 400, Washington, DC 20052, USA
| | - Cesar G Victora
- Programa de Pós-graduacao em Epidemiologia, Universidade Federal de Pelotas, Rua Marechal Deodoro 1160, 30 piso, Centro, CEP 96020-220, Pelotas, RS, Brazil
| | - Sithembiso C Velaphi
- Department of Paediatrics, Chris Hani Baragwaneth Hospital, Faculty of Health Sciences, University of Witwatersrand, Soweto, Johannesburg, South Africa
| | - Deborah Watson-Jones
- Clinical Research Department, London School of Hygiene and Tropical Medicine, London, UK
- Mwanza Intervention Trial Unit, National Institute for Medical Research, Mwanza, Tanzania
| | - Barbara A Willey
- Facuty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London WC1E 7HT, UK
- Maternal, Adolescent, Reproductive, and Child Health (MARCH) Centre, London School of Hygiene and Tropical Medicine, London WC1E 7HT, UK
| | - Majid Ezzati
- MRC-PHE Centre for Environment and Health, Department of Epidemiology and Biostatistics, School of Public Health, Imperial College, London, London W2 1PG, UK
| | - Joy E Lawn
- Facuty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London WC1E 7HT, UK
- Maternal, Adolescent, Reproductive, and Child Health (MARCH) Centre, London School of Hygiene and Tropical Medicine, London WC1E 7HT, UK
| | - Robert E Black
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe St., Baltimore, MD 21205, USA
- Institute for International Programs, Johns Hopkins Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA
| | - Joanne Katz
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe St., Baltimore, MD 21205, USA
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Carrara VI, Stuetz W, Lee SJ, Sriprawat K, Po B, Hanboonkunupakarn B, Nosten FH, McGready R. Longer exposure to a new refugee food ration is associated with reduced prevalence of small for gestational age: results from 2 cross-sectional surveys on the Thailand-Myanmar border. Am J Clin Nutr 2017; 105:1382-1390. [PMID: 28490508 PMCID: PMC5445675 DOI: 10.3945/ajcn.116.148262] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Accepted: 04/05/2017] [Indexed: 11/14/2022] Open
Abstract
Background: Despite the high risk of compromised nutrition, evidence of the effect of refugee rations on fetal growth is limited. A new ration containing micronutrient-fortified flour without increased caloric content of the general food basket was introduced to the Maela refugee camp in Thailand, July 2004.Objective: The effect of the length of gestational exposure of the new ration on fetal growth was compared with birth outcomes [small for gestational age (SGA), preterm birth (PTB)].Design: In an observational study in 987 newborns from 1048 prospectively followed antenatal clinic (ANC) attendees enrolled in 2 cross-sectional surveys, exposure was categorized in 2004 according to gestation at the time of commencing the new ration and in 2006 as comprehensive (preconception and pregnancy). In both surveys, the pregnancy-specific ration and vitamin supplements were routine.Results: In 2004, the proportions of SGA decreased with longer exposure to the new ration: no exposure during pregnancy (27.7%; n = 13 of 47) and exposure in the third (27.6%; n = 37 of 134), second (18.6%; n = 35 of 188), and first (19.4%; n = 6 of 31) trimesters, respectively (adjusted P-trend = 0.046). In 2006, the new ration was available to all women and there was no significant additional impact of the pregnancy-specific ration and vitamin supplements. Between 2004 and 2006, SGA decreased from 28.9% (13 of 45) to 17.3% (69 of 398) (adjusted P = 0.050), a reduction of 40.1% (95% CI: 34.7%, 45.9%); there was also a decrease in the percentage of underweight women on admission to the ANC (38.2%; 95% CI: 31.4%, 45.5%). PTB rates were low and not significantly different with exposure to the new ration.Conclusions: In 2004, the earlier in gestation in which the new ration was available the greater the effect on fetal growth as shown by a reduced prevalence of SGA. In 2006, additional benefits to fetal growth from the pregnancy-specific ration and vitamin supplements beyond those of the preconception ration were not observed. Good nutrition in pregnancy remains an important challenge for refugee populations. This trial was registered at http://drks-neu.uniklinik-freiburg.de/drks_web/ as DRKS00007736.
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Affiliation(s)
- Verena I Carrara
- Shoklo Malaria Research Unit, Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Mae Sot, Thailand;
| | - Wolfgang Stuetz
- Institute of Biological Chemistry and Nutrition, University of Hohenheim, Stuttgart, Germany
| | - Sue J Lee
- Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; and,Centre for Tropical Medicine, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
| | - Kanlaya Sriprawat
- Shoklo Malaria Research Unit, Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Mae Sot, Thailand
| | - Basi Po
- Shoklo Malaria Research Unit, Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Mae Sot, Thailand
| | - Borimas Hanboonkunupakarn
- Department of Clinical Tropical Medicine and,Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; and
| | - François H Nosten
- Shoklo Malaria Research Unit, Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Mae Sot, Thailand;,Centre for Tropical Medicine, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
| | - Rose McGready
- Shoklo Malaria Research Unit, Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Mae Sot, Thailand;,Centre for Tropical Medicine, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
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Devakumar D, Kular D, Shrestha BP, Grijalva-Eternod C, Daniel RM, Saville NM, Manandhar DS, Costello A, Osrin D, Wells JCK. Socioeconomic determinants of growth in a longitudinal study in Nepal. MATERNAL AND CHILD NUTRITION 2017; 14. [PMID: 28449415 PMCID: PMC5763270 DOI: 10.1111/mcn.12462] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Revised: 03/29/2017] [Accepted: 03/30/2017] [Indexed: 12/19/2022]
Abstract
Socioeconomic status (SES) is associated with childhood anthropometry, but little is known about how it is associated with tissue growth and body composition. To investigate this, we looked at components of SES at birth with growth in early and mid‐childhood, and body composition in a longitudinal study in Nepal. The exposure variables (material assets, land ownership, and maternal education) were quantified from questionnaire data before birth. Anthropometry data at birth, 2.5 and 8.5 years, were normalized using WHO reference ranges and conditional growth calculated. Associations with child growth and body composition were explored using multiple regression analysis. Complete anthropometry data were available for 793 children. There was a positive association between SES and height‐for‐age and weight‐for‐age, and a reduction in odds of stunting and underweight for each increase in rank of SES variable. Associations tended to be significant when moving from the lower to the upper asset score, from none to secondary education, and no land to >30 dhur (~500 m2). The strongest associations were for maternal secondary education, showing an increase of 0.6–0.7 z scores in height‐for‐age and weight‐for‐age at 2.5 and 8.5 years and 0.3 kg/m2 in fat and lean mass compared to no education. There was a positive association with conditional growth in the highest asset score group and secondary maternal education, and generally no association with land ownership. Our results show that SES at birth is important for the growth of children, with a greater association with fat mass. The greatest influence was maternal secondary education.
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Affiliation(s)
| | | | | | | | - Rhian M Daniel
- London School of Hygiene and Tropical Medicine, London, UK
| | | | | | | | - David Osrin
- Institute for Global Health, UCL, London, UK
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Abstract
BACKGROUND Multiple-micronutrient (MMN) deficiencies often coexist among women of reproductive age in low- to middle-income countries. They are exacerbated in pregnancy due to the increased demands, leading to potentially adverse effects on the mother and developing fetus. Though supplementation with MMNs has been recommended earlier because of the evidence of impact on pregnancy outcomes, a consensus is yet to be reached regarding the replacement of iron and folic acid supplementation with MMNs. Since the last update of this Cochrane review, evidence from a few large trials has recently been made available, the inclusion of which is critical to inform policy. OBJECTIVES To evaluate the benefits of oral multiple-micronutrient supplementation during pregnancy on maternal, fetal and infant health outcomes. SEARCH METHODS We searched the Cochrane Pregnancy and Childbirth Group's Trials Register (11 March 2015) and reference lists of retrieved articles and key reviews. We also contacted experts in the field for additional and ongoing trials. SELECTION CRITERIA All prospective randomised controlled trials evaluating MMN supplementation with iron and folic acid during pregnancy and its effects on the pregnancy outcome were eligible, irrespective of language or the publication status of the trials. We included cluster-randomised trials, but quasi-randomised trials were excluded. DATA COLLECTION AND ANALYSIS Two review authors independently assessed trials for inclusion and risk of bias, extracted data and checked them for accuracy. The quality of the evidence was assessed using the GRADE approach. MAIN RESULTS Nineteen trials (involving 138,538 women) were identified as eligible for inclusion in this review but only 17 trials (involving 137,791 women) contributed data to the review. Fifteen of these 17 trials were carried out in low and middle-income countries and compared MMN supplements with iron and folic acid versus iron with or without folic acid. Two trials carried out in the UK compared MMN with a placebo. MMN with iron and folic acid versus iron, with or without folic acid (15 trials): MMN resulted in a significant decrease in the number of newborn infants identified as low birthweight (LBW) (average risk ratio (RR) 0.88, 95% confidence interval (CI) 0.85 to 0.91; high-quality evidence) or small-for-gestational age (SGA) (average RR 0.92, 95% CI 0.86 to 0.98; moderate-quality evidence). No significant differences were shown for other maternal and pregnancy outcomes: preterm births (average RR 0.96, 95% CI 0.90 to 1.03; high-quality evidence), stillbirth (average RR 0.97, 95% CI 0.87, 1.09; high-quality evidence), maternal anaemia in the third trimester (average RR 1.03, 95% CI 0.85 to 1.24), miscarriage (average RR 0.91, 95% CI 0.80 to 1.03), maternal mortality (average RR 0.97, 95% CI 0.63 to 1.48), perinatal mortality (average RR 1.01, 95% CI 0.91 to 1.13; high-quality evidence), neonatal mortality (average RR 1.06, 95% CI 0.92 to 1.22; high-quality evidence), or risk of delivery via a caesarean section (average RR 1.04; 95% CI 0.74 to 1.46).A number of prespecified, clinically important outcomes could not be assessed due to insufficient or non-available data. Single trials reported results for: very preterm birth < 34 weeks, macrosomia, side-effects of supplements, nutritional status of children, and congenital anomalies including neural tube defects and neurodevelopmental outcome: Bayley Scales of Infant Development (BSID) scores. None of these trials reported pre-eclampsia, placental abruption, premature rupture of membranes, cost of supplementation, and maternal well-being or satisfaction.When assessed according to GRADE criteria, the quality of evidence for the review's primary outcomes overall was good. Pooled results for primary outcomes were based on multiple trials with large sample sizes and precise estimates. The following outcomes were graded to be as of high quality: preterm birth, LBW, perinatal mortality, stillbirth and neonatal mortality. The outcome of SGA was graded to be of moderate quality, with evidence downgraded by one for funnel plot asymmetry and potential publication bias.We carried out sensitivity analysis excluding trials with high levels of sample attrition (> 20%); results were consistent with the main analysis except for the findings for SGA (average RR 0.91, 95% CI 0.84 to 1.00). We explored heterogeneity through subgroup analyses by maternal height and body mass index (BMI), timing of supplementation and dose of iron. Subgroup differences were observed for maternal BMI for the outcome preterm birth, with significant findings among women with low BMI. Subgroup differences were also observed for maternal BMI and maternal height for the outcome SGA, indicating a significant impact among women with higher maternal BMI and height. The overall analysis of perinatal mortality, although showed a non-significant effect of MMN supplements versus iron with or without folic acid, was found to have substantial statistical heterogeneity. Subgroup differences were observed for timing of supplementation for this outcome, indicating a significantly higher impact with late initiation of supplementation. The findings between subgroups for other primary outcomes were inconclusive. MMN versus placebo (two trials): A single trial in the UK found no clear differences between groups for preterm birth, SGA, LBW or maternal anaemia in the third trimester. A second trial reported the number of women with pre-eclampsia; there was no evidence of a difference between groups. Other outcomes were not reported. AUTHORS' CONCLUSIONS Our findings support the effect of MMN supplements with iron and folic acid in improving some birth outcomes. Overall, pregnant women who received MMN supplementation had fewer low birthweight babies and small-for-gestational-age babies. The findings, consistently observed in several systematic evaluations of evidence, provide a basis to guide the replacement of iron and folic acid with MMN supplements containing iron and folic acid for pregnant women in low and middle-income countries where MMN deficiencies are common among women of reproductive age. Efforts could focus on the integration of this intervention in maternal nutrition and antenatal care programs in low and middle-income countries.
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Affiliation(s)
- Batool A Haider
- Harvard School of Public HealthDepartment of Global Health and Population677 Huntington AvenueBostonUSA02115
| | - Zulfiqar A Bhutta
- Hospital for Sick ChildrenCentre for Global Child HealthTorontoCanadaM5G A04
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Lawande A, Di Gravio C, Potdar RD, Sahariah SA, Gandhi M, Chopra H, Sane H, Kehoe SH, Marley-Zagar E, Margetts BM, Jackson AA, Fall CHD. Effect of a micronutrient-rich snack taken preconceptionally and throughout pregnancy on ultrasound measures of fetal growth: The Mumbai Maternal Nutrition Project (MMNP). MATERNAL AND CHILD NUTRITION 2017; 14. [PMID: 28251804 PMCID: PMC5482394 DOI: 10.1111/mcn.12441] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Revised: 01/26/2017] [Accepted: 01/27/2017] [Indexed: 12/05/2022]
Abstract
Improving micronutrient intakes of under‐nourished mothers in low‐ and middle‐income countries increases birth weight, but there is little data on the nature and timing during gestation of any effects on fetal growth. Ultrasound measures of fetal size were used to determine whether and when a food‐based supplement affected fetal growth. Non‐pregnant women living in Mumbai slums, India (N = 6,513), were randomly assigned to receive either a daily micronutrient‐rich snack containing green leafy vegetables, fruit, and milk (treatment) or a snack made from lower‐micronutrient vegetables (control) in addition to their usual diet from before pregnancy until delivery. From 2,291 pregnancies, the analysis sample comprised 1,677 fetuses (1,335 fetuses of women supplemented for ≥3 months before conception). First‐trimester (median: 10 weeks, interquartile range: 9–12 weeks) fetal crown‐rump length was measured. Fetal head circumference, biparietal diameter, femur length, and abdominal circumference were measured during the second (19, 19–20 weeks) and third trimesters (29, 28–30 weeks). The intervention had no effect on fetal size or growth at any stage of pregnancy. In the second trimester, there were interactions between parity and allocation group for biparietal diameter (p = .02) and femur length (p = .04) with both being smaller among fetuses of primiparous women and larger among those of multiparous women, in the treatment group compared with the controls. Overall, a micronutrient‐rich supplement did not increase standard ultrasound measures of fetal size and growth at any stage of pregnancy. Additional ultrasound measures of fetal soft tissues (fat and muscle) may be informative.
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Affiliation(s)
| | - Chiara Di Gravio
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK
| | | | | | - Meera Gandhi
- Centre for the Study of Social Change, Mumbai, India
| | - Harsha Chopra
- Centre for the Study of Social Change, Mumbai, India
| | - Harshad Sane
- Centre for the Study of Social Change, Mumbai, India
| | - Sarah H Kehoe
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK
| | - Ella Marley-Zagar
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK
| | | | - Alan A Jackson
- NIHR Southampton Biomedical Research Centre, Southampton, UK
| | - Caroline H D Fall
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK
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Parental heights and maternal education as predictors of length/height of children at birth, age 3 and 19 years, independently on diet: the ELSPAC study. Eur J Clin Nutr 2017; 71:1193-1199. [PMID: 28176773 DOI: 10.1038/ejcn.2016.244] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Revised: 09/24/2016] [Accepted: 09/30/2016] [Indexed: 01/12/2023]
Abstract
BACKGROUND/OBJECTIVES Little is currently known about the relationship between the parental diet during pregnancy and the growth of the child from early childhood until early adulthood. This study was designed to examine whether the dietary patterns of the parents during a pregnancy and of the respective child at 3 years are associated with the length/height-for-age z-score of child at birth, 3 years of age and at 19 years of age. SUBJECTS/METHODS Dietary patterns of pregnant women and their partners, and offspring at 3 years that were enroled in the 1990-1991 period in the Czech part of the European Longitudinal Study of Pregnancy and Childhood. Multivariable linear regression models were used to estimate the relationship between the dietary patterns of parents (835 child-mother-father trios) during pregnancy and the length/height-for-age z-score of their offspring at birth, 3 years and 19 years. RESULTS The maternal health-conscious food pattern was found to predict lower child height at 3 years, but not at birth nor at 19 years of age. An increase in the health-conscious pattern score of the maternal diet was associated with significantly lower height-for-age z-score at 3 years; however, the observed effect lost its significance after the adjustment for diet of the child at 3 years. CONCLUSIONS After full adjustment, the only significant predictors of the height-for-age z-score of the child at 3 years were the heights of both parents and maternal education. More research into the association of maternal diet in pregnancy and height of child is necessary.
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Hetherington JB, Wiethoelter AK, Negin J, Mor SM. Livestock ownership, animal source foods and child nutritional outcomes in seven rural village clusters in Sub-Saharan Africa. ACTA ACUST UNITED AC 2017. [DOI: 10.1186/s40066-016-0079-z] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Biesalski HK, Tinz J. Multivitamin/mineral supplements: Rationale and safety – A systematic review. Nutrition 2017; 33:76-82. [DOI: 10.1016/j.nut.2016.02.013] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Revised: 02/18/2016] [Accepted: 02/19/2016] [Indexed: 12/31/2022]
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Bartington SE, Bakolis I, Devakumar D, Kurmi OP, Gulliver J, Chaube G, Manandhar DS, Saville NM, Costello A, Osrin D, Hansell AL, Ayres JG. Patterns of domestic exposure to carbon monoxide and particulate matter in households using biomass fuel in Janakpur, Nepal. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2017; 220:38-45. [PMID: 27707597 PMCID: PMC5157800 DOI: 10.1016/j.envpol.2016.08.074] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Revised: 08/08/2016] [Accepted: 08/27/2016] [Indexed: 05/21/2023]
Abstract
Household Air Pollution (HAP) from biomass cooking fuels is a major cause of morbidity and mortality in low-income settings worldwide. In Nepal the use of open stoves with solid biomass fuels is the primary method of domestic cooking. To assess patterns of domestic air pollution we performed continuous measurement of carbon monoxide (CO) and particulate Matter (PM2.5) in 12 biomass fuel households in Janakpur, Nepal. We measured kitchen PM2.5 and CO concentrations at one-minute intervals for an approximately 48-h period using the TSI DustTrak II 8530/SidePak AM510 (TSI Inc, St. Paul MN, USA) or EL-USB-CO data logger (Lascar Electronics, Erie PA, USA) respectively. We also obtained information regarding fuel, stove and kitchen characteristics and cooking activity patterns. Household cooking was performed in two daily sessions (median total duration 4 h) with diurnal variability in pollutant concentrations reflecting morning and evening cooking sessions and peak concentrations associated with fire-lighting. We observed a strong linear relationship between PM2.5 measurements obtained by co-located photometric and gravimetric monitoring devices, providing local calibration factors of 4.9 (DustTrak) and 2.7 (SidePak). Overall 48-h average CO and PM2.5 concentrations were 5.4 (SD 4.3) ppm (12 households) and 417.6 (SD 686.4) μg/m3 (8 households), respectively, with higher average concentrations associated with cooking and heating activities. Overall average PM2.5 concentrations and peak 1-h CO concentrations exceeded WHO Indoor Air Quality Guidelines. Average hourly PM2.5 and CO concentrations were moderately correlated (r = 0.52), suggesting that CO has limited utility as a proxy measure for PM2.5 exposure assessment in this setting. Domestic indoor air quality levels associated with biomass fuel combustion in this region exceed WHO Indoor Air Quality standards and are in the hazardous range for human health.
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Affiliation(s)
- S E Bartington
- Institute of Applied Health Research, University of Birmingham, Birmingham, B15 2TT, UK.
| | - I Bakolis
- UK Small Area Health Statistics Unit, MRC-PHE Centre for Environment and Health, Department of Epidemiology and Biostatistics, School of Public Health, Imperial College, London W2 1PG, UK; Department of Biostatistics, Institute of Psychiatry, Psychology and Neuroscience, De Crespigny Park, London SE5 8AF, UK; Department of Health Services and Population Research, Institute of Psychiatry, Psychology and Neuroscience, De Crespigny Park, London SE5 8AF, UK
| | - D Devakumar
- UCL Institute for Global Health, University College London, 30 Guilford Street, London WC1N 1EH, UK
| | - O P Kurmi
- Clinical Trial Service Unit and Epidemiological Studies Unit (CTSU), Nuffield Department of Population Health, Old Road Campus, Oxford OX3 7LF, UK
| | - J Gulliver
- UK Small Area Health Statistics Unit, MRC-PHE Centre for Environment and Health, Department of Epidemiology and Biostatistics, School of Public Health, Imperial College, London W2 1PG, UK
| | - G Chaube
- Mother and Infant Research Activities (MIRA), Kathmandu 44600, Nepal
| | - D S Manandhar
- Mother and Infant Research Activities (MIRA), Kathmandu 44600, Nepal
| | - N M Saville
- UCL Institute for Global Health, University College London, 30 Guilford Street, London WC1N 1EH, UK
| | - A Costello
- UCL Institute for Global Health, University College London, 30 Guilford Street, London WC1N 1EH, UK
| | - D Osrin
- UCL Institute for Global Health, University College London, 30 Guilford Street, London WC1N 1EH, UK
| | - A L Hansell
- UK Small Area Health Statistics Unit, MRC-PHE Centre for Environment and Health, Department of Epidemiology and Biostatistics, School of Public Health, Imperial College, London W2 1PG, UK; Imperial College Healthcare NHS Trust, London, UK
| | - J G Ayres
- Institute of Occupational and Environmental Medicine, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
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50
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Saville NM, Shrestha BP, Style S, Harris-Fry H, Beard BJ, Sengupta A, Jha S, Rai A, Paudel V, Pulkki-Brannstrom AM, Copas A, Skordis-Worrall J, Bhandari B, Neupane R, Morrison J, Gram L, Sah R, Basnet M, Harthan J, Manandhar DS, Osrin D, Costello A. Protocol of the Low Birth Weight South Asia Trial (LBWSAT), a cluster-randomised controlled trial testing impact on birth weight and infant nutrition of Participatory Learning and Action through women's groups, with and without unconditional transfers of fortified food or cash during pregnancy in Nepal. BMC Pregnancy Childbirth 2016; 16:320. [PMID: 27769191 PMCID: PMC5073870 DOI: 10.1186/s12884-016-1102-x] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Accepted: 10/08/2016] [Indexed: 11/16/2022] Open
Abstract
Background Low birth weight (LBW, < 2500 g) affects one third of newborn infants in rural south Asia and compromises child survival, infant growth, educational performance and economic prospects. We aimed to assess the impact on birth weight and weight-for-age Z-score in children aged 0–16 months of a nutrition Participatory Learning and Action behaviour change strategy (PLA) for pregnant women through women’s groups, with or without unconditional transfers of food or cash to pregnant women in two districts of southern Nepal. Methods The study is a cluster randomised controlled trial (non-blinded). PLA comprises women’s groups that discuss, and form strategies about, nutrition in pregnancy, low birth weight and hygiene. Women receive up to 7 monthly transfers per pregnancy: cash is NPR 750 (~US$7) and food is 10 kg of fortified sweetened wheat-soya Super Cereal per month. The unit of randomisation is a rural village development committee (VDC) cluster (population 4000–9200, mean 6150) in southern Dhanusha or Mahottari districts. 80 VDCs are randomised to four arms using a participatory ‘tombola’ method. Twenty clusters each receive: PLA; PLA plus food; PLA plus cash; and standard care (control). Participants are (mostly Maithili-speaking) pregnant women identified from 8 weeks’ gestation onwards, and their infants (target sample size 8880 birth weights). After pregnancy verification, mothers may be followed up in early and late pregnancy, within 72 h, after 42 days and within 22 months of birth. Outcomes pertain to the individual level. Primary outcomes include birth weight within 72 h of birth and infant weight-for-age Z-score measured cross-sectionally on children born of the study. Secondary outcomes include prevalence of LBW, eating behaviour and weight during pregnancy, maternal and newborn illness, preterm delivery, miscarriage, stillbirth or neonatal mortality, infant Z-scores for length-for-age and weight-for-length, head circumference, and postnatal maternal BMI and mid-upper arm circumference. Exposure to women’s groups, food or cash transfers, home visits, and group interventions are measured. Discussion Determining the relative importance to birth weight and early childhood nutrition of adding food or cash transfers to PLA women’s groups will inform design of nutrition interventions in pregnancy. Trial registration ISRCTN75964374, 12 Jul 2013 Electronic supplementary material The online version of this article (doi:10.1186/s12884-016-1102-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Naomi M Saville
- University College London, Institute for Global Health, London, UK.
| | - Bhim P Shrestha
- Mother and Infant Research Activities (MIRA), PO Box 921, Thapathali, Kathmandu, Nepal
| | - Sarah Style
- University College London, Institute for Global Health, London, UK
| | - Helen Harris-Fry
- University College London, Institute for Global Health, London, UK
| | - B James Beard
- University College London, Institute for Global Health, London, UK
| | - Aman Sengupta
- Mother and Infant Research Activities (MIRA), PO Box 921, Thapathali, Kathmandu, Nepal
| | - Sonali Jha
- Mother and Infant Research Activities (MIRA), PO Box 921, Thapathali, Kathmandu, Nepal
| | - Anjana Rai
- Mother and Infant Research Activities (MIRA), PO Box 921, Thapathali, Kathmandu, Nepal
| | - Vikas Paudel
- Mother and Infant Research Activities (MIRA), PO Box 921, Thapathali, Kathmandu, Nepal
| | | | - Andrew Copas
- University College London, Institute for Global Health, London, UK
| | | | - Bishnu Bhandari
- Mother and Infant Research Activities (MIRA), PO Box 921, Thapathali, Kathmandu, Nepal
| | - Rishi Neupane
- Mother and Infant Research Activities (MIRA), PO Box 921, Thapathali, Kathmandu, Nepal
| | - Joanna Morrison
- University College London, Institute for Global Health, London, UK
| | - Lu Gram
- University College London, Institute for Global Health, London, UK
| | - Raghbendra Sah
- Mother and Infant Research Activities (MIRA), PO Box 921, Thapathali, Kathmandu, Nepal
| | - Machhindra Basnet
- Mother and Infant Research Activities (MIRA), PO Box 921, Thapathali, Kathmandu, Nepal
| | - Jayne Harthan
- University College London, Institute for Global Health, London, UK
| | - Dharma S Manandhar
- Mother and Infant Research Activities (MIRA), PO Box 921, Thapathali, Kathmandu, Nepal
| | - David Osrin
- University College London, Institute for Global Health, London, UK
| | - Anthony Costello
- University College London, Institute for Global Health, London, UK
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