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Dewey KG, Wessells KR, Arnold CD, Adu-Afarwuah S, Arnold BF, Ashorn P, Ashorn U, Garcés A, Huybregts L, Krebs NF, Lartey A, Leroy JL, Maleta K, Matias SL, Moore SE, Mridha MK, Okronipa H, Stewart CP. Effects of prenatal small-quantity lipid-based nutrient supplements on pregnancy, birth and infant outcomes: a systematic review and meta-analysis of individual participant data from randomized controlled trials in low- and middle-income countries. Am J Clin Nutr 2024:S0002-9165(24)00667-1. [PMID: 39154665 DOI: 10.1016/j.ajcnut.2024.08.008] [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: 05/17/2024] [Revised: 08/05/2024] [Accepted: 08/12/2024] [Indexed: 08/20/2024] Open
Abstract
BACKGROUND Undernutrition during pregnancy increases the risk of giving birth to a small vulnerable newborn. Small-quantity lipid-based nutrient supplements (SQ-LNS) contain both macro- and micronutrients and can help prevent multiple nutritional deficiencies. OBJECTIVES We examined effects of SQ-LNS provided during pregnancy, compared to a) iron and folic acid or standard of care (IFA/SOC) or b) multiple micronutrient supplements (MMS), and identified characteristics that modified the estimates of effects of SQ-LNS on birth outcomes. METHODS We conducted a 2-stage meta-analysis of individual participant data from 4 randomized controlled trials of SQ-LNS provided during pregnancy (n = 5,273). We generated study-specific and subgroup estimates of SQ-LNS compared with IFA/SOC or MMS and pooled the estimates. In sensitivity analyses, we examined whether results differed depending on methods for gestational age dating, birth anthropometry, or study design. RESULTS SQ-LNS (vs IFA/SOC) increased birth weight (mean difference: +49g; 95% CI: 26, 71g) and all birth anthropometric z-scores (+0.10-0.13 SD); it reduced risk of low birthweight by 11%, newborn stunting by 17%, newborn wasting by 11%, and small head size by 15%. Only 2 trials compared SQ-LNS and MMS; p-values for birth outcomes were >0.10 except for head circumference (e.g., z-score for gestational age +0.11; 95% CI: -0.01, 0.23). Effect estimates for SQ-LNS vs IFA/SOC were greater among female infants and, for certain outcomes, among mothers with body mass index < 20 kg/m2, inflammation, malaria, or household food insecurity. Effect estimates for SQ-LNS vs MMS were greater for certain outcomes among female infants, first-born infants, and mothers < 25 y. CONCLUSIONS SQ-LNS had positive impacts on multiple outcomes compared to IFA/SOC, but further research directly comparing SQ-LNS and MMS is needed. Targeting SQ-LNS to vulnerable subgroups may be worth considering. Analysis registered at www.crd.york.ac.uk/PROSPERO (CRD42021283391). REGISTRY AND REGISTRY NUMBER FOR SYSTEMATIC REVIEWS OR META-ANALYSES: Registered at www.crd.york.ac.uk/PROSPERO as CRD42021283391 on 11 April 2021.
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Affiliation(s)
- Kathryn G Dewey
- Institute for Global Nutrition and Department of Nutrition, University of California, Davis, Davis, CA, USA.
| | - K Ryan Wessells
- Institute for Global Nutrition and Department of Nutrition, University of California, Davis, Davis, CA, USA
| | - Charles D Arnold
- Institute for Global Nutrition and Department of Nutrition, University of California, Davis, Davis, CA, USA
| | - Seth Adu-Afarwuah
- Department of Nutrition and Food Science, University of Ghana, Legon, Accra, Ghana
| | - Benjamin F Arnold
- Francis I. Proctor Foundation, University of California, San Francisco, San Francisco, CA, USA
| | - Per Ashorn
- Center for Child, Adolescent and Maternal Health Research, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland; Department of Paediatrics, Tampere University Hospital, Tampere, Finland
| | - Ulla Ashorn
- Center for Child, Adolescent and Maternal Health Research, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Ana Garcés
- Proyecto Salud y Nutrición, Jhpiego, Guatemala City, Guatemala
| | - Lieven Huybregts
- Poverty, Health, and Nutrition Division, International Food Policy Research Institute, Washington, DC, USA
| | - Nancy F Krebs
- Section of Nutrition, Department of Pediatrics, University of Colorado School of Medicine, Denver, CO, USA
| | - Anna Lartey
- Department of Nutrition and Food Science, University of Ghana, Legon, Accra, Ghana
| | - Jef L Leroy
- Poverty, Health, and Nutrition Division, International Food Policy Research Institute, Washington, DC, USA
| | - Kenneth Maleta
- Department of Nutrition and Dietetics, School of Global and Public Health, Kamuzu University of Health Sciences, Blantyre, Malawi
| | - Susana L Matias
- Department of Nutritional Sciences and Toxicology, University of California, Berkeley, Berkeley, CA, USA
| | - Sophie E Moore
- Department of Women & Children's Health, King's College London, London, UK; MRC Unit The Gambia at the London School of Hygiene and Tropical Medicine, Fajara, The Gambia
| | - Malay K Mridha
- Center for Non-communicable Diseases and Nutrition, BRAC James P Grant School of Public Health, Bangladesh
| | - Harriet Okronipa
- Department of Nutritional Sciences, Oklahoma State University, Stillwater, OK, USA
| | - Christine P Stewart
- Institute for Global Nutrition and Department of Nutrition, University of California, Davis, Davis, CA, USA
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2
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McDonald CM, Wessells KR, Stewart CP, Dewey KG, de Pee S, Rana R, Hafeez-Ur-Rehman H, Mwangi MN, Hess SY. Perinatal intervention strategies providing food with micronutrients to pregnant and breastfeeding women in low- and middle-income countries: A scoping review. MATERNAL & CHILD NUTRITION 2024:e13681. [PMID: 38949186 DOI: 10.1111/mcn.13681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 05/03/2024] [Accepted: 05/28/2024] [Indexed: 07/02/2024]
Abstract
In resource-constrained settings, pregnant and breastfeeding women and girls (PBW/G) are particularly vulnerable to undernutrition. Micronutrient-fortified balanced energy protein (BEP) supplementation may be provided to boost maternal nutritional status and improve birth and infant outcomes. We conducted a scoping review of the published literature to determine the impact of BEP and other related nutrition interventions that provided fortified food or cash along with a minimum of 3 micronutrients on maternal, birth, and infant/child outcomes in low- and middle-income countries. We conducted a PubMed search using pre-defined keywords and controlled vocabulary search terms. All titles and abstracts were reviewed for eligibility by two independent reviewers, and data were extracted according to outcome type. We identified 149 eligible research articles that reported on a total of 21 trials and/or programme evaluations which assessed the health impact of one or more products (fortified lipid-based nutrient supplement [LNS, n = 12], fortified blended flours [n = 5], milk-based beverages [n = 2], and local food/snacks [n = 3]) that provided 118-750 kcal/day and varying levels of protein and micronutrients. Only one of these programme evaluations assessed the impact of the provision of cash and fortified food. Effects on maternal outcomes such as gestational weight gain and duration of gestation were promising but inconsistent. Birth outcomes were reported in 15 studies, and the effects on birthweight and birth length were generally positive. Seven studies demonstrated sustained benefits on infant and child growth out of the 15 studies that reported at least one of these outcomes, although data were sparse. Additional research is needed to investigate issues of dose, cost-effectiveness, and incorporation into multi-component interventions.
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Affiliation(s)
- Christine M McDonald
- Departments of Pediatrics, and Epidemiology & Biostatistics, University of California, San Francisco, California, USA
- Institute for Global Nutrition and Department of Nutrition, University of California, Davis, California, USA
| | - K Ryan Wessells
- Institute for Global Nutrition and Department of Nutrition, University of California, Davis, California, USA
| | - Christine P Stewart
- Institute for Global Nutrition and Department of Nutrition, University of California, Davis, California, USA
| | - Kathryn G Dewey
- Institute for Global Nutrition and Department of Nutrition, University of California, Davis, California, USA
| | - Saskia de Pee
- Nutrition Division, World Food Programme HQ, Rome, Italy
| | - Ritu Rana
- Nutrition Division, World Food Programme HQ, Rome, Italy
| | | | | | - Sonja Y Hess
- Institute for Global Nutrition and Department of Nutrition, University of California, Davis, California, USA
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3
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Werner ER, Arnold CD, Caswell BL, Iannotti LL, Maleta KM, Stewart CP. Associations of fish and meat intake with iron and anaemia in Malawian children. MATERNAL & CHILD NUTRITION 2024; 20:e13622. [PMID: 38217291 PMCID: PMC10981481 DOI: 10.1111/mcn.13622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Revised: 12/15/2023] [Accepted: 12/21/2023] [Indexed: 01/15/2024]
Abstract
Animal flesh foods are rich in bioavailable iron but infrequently consumed by young children. We aimed to determine whether flesh food intake was associated with iron and anaemia status among 585 Malawian infants enroled in a 6-month egg-feeding trial. The percentage of days of small fish, large fish and meat consumption were assessed through weekly 7-day animal-source food screeners. Grams of intake were assessed through 24-h recalls conducted at 6-9, 9-12 and 12-15 months of age. Plasma ferritin, soluble transferrin receptor (sTfR) and haemoglobin concentrations were measured at 6-9 and 12-15 months of age. Iron biomarkers were adjusted for inflammation during analysis. At enrolment, each flesh food category was consumed by <5% of children in the past 24 h. Over the next 6 months, small fish, large fish and meat were consumed on 25%, 8% and 6% of days, respectively, with mean usual intakes of <5 g/day. More frequent small fish consumption was associated with lower sTfR (geometric mean ratio [95% CI]: 0.98 mg/L [0.96, 1.00] per 10 percentage point difference) but not ferritin (1.03 µg/L [0.98, 1.07]) or haemoglobin (1.01 g/dL [1.00, 1.01]). Large fish consumption was associated with higher anaemia (prevalence ratio [95% CI]: 1.09 [1.01, 1.19]) and lower iron deficiency (0.96 [0.93, 1.00]) prevalence. Gram intakes of flesh food categories were not associated with any iron or anaemia indicators. Small fish were a primary contributor to flesh food intake in this cohort of Malawian children, although usual portions were small. Fish was associated with modest improvements to iron status, but meat was too infrequent to be associated with anaemia and iron deficiency.
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Affiliation(s)
- E. Rochelle Werner
- Institute for Global NutritionUniversity of California, DavisDavisCaliforniaUSA
- Department of Global Health, Rollins School of Public HealthEmory UniversityAtlantaGeorgiaUSA
| | - Charles D. Arnold
- Institute for Global NutritionUniversity of California, DavisDavisCaliforniaUSA
| | - Bess L. Caswell
- Institute for Global NutritionUniversity of California, DavisDavisCaliforniaUSA
- U.S. Department of AgricultureWestern Human Nutrition Research CenterDavisCaliforniaUSA
| | - Lora L. Iannotti
- E3 Nutrition LabWashington University in St. LouisSt. LouisMissouriUSA
| | - Kenneth M. Maleta
- School of Global and Public HealthKamuzu University of Health SciencesBlantyreMalawi
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Effect of Lipid-Based Multiple Micronutrients Supplementation in Underweight Primigravida Pre-Eclamptic Women on Maternal and Pregnancy Outcomes: Randomized Clinical Trial. MEDICINA (KAUNAS, LITHUANIA) 2022; 58:medicina58121772. [PMID: 36556974 PMCID: PMC9783323 DOI: 10.3390/medicina58121772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 11/17/2022] [Accepted: 11/26/2022] [Indexed: 12/05/2022]
Abstract
Background and Objectives: In pre-eclampsia, restricted blood supply due to the lack of trophoblastic cell invasion and spiral artery remodeling is responsible for adverse pregnancies and maternal outcomes, which is added to by maternal undernutrition. This study was designed to observe the effect of multiple nutritional micronutrient supplements on the pregnancy outcomes of underweight pre-eclamptic women. To investigate the effects of lipid-based multiple micr supplementations (LNS-PLW) on pregnancy and maternal outcomes in underweight primigravida pre-eclamptic women. Materials and Methods: A total of 60 pre-eclamptic, underweight primigravida women from the antenatal units of tertiary care hospitals in the Khyber Pakhtunkhwa Province, Pakistan, were randomly divided into two groups (Group 1 and Group 2). The participants of both groups were receiving routine treatment for pre-eclampsia: iron (60 mgs) and folic acid (400 ug) IFA daily. Group 2 was given an additional sachet of 75 gm LNS-PLW daily till delivery. The pregnancy outcomes of both groups were recorded. The clinical parameters, hemoglobin, platelet count, and proteinuria were measured at recruitment. Results: The percentage of live births in Group 2 was 93% compared to 92% in Group 1. There were more normal vaginal deliveries (NVDs) in Group 2 compared to Group 1 (Group 2, 78% NVD; group 1, 69% NVD). In Group 1, 4% of the participants developed eclampsia. The frequency of cesarean sections was 8/26 (31%) in Group 1 and 6/28 (22%) in Group 2. The number of intrauterine deaths (IUDs) was only 1/28 (4%) in Group 2, while it was 2/26 (8%) in Group 1. The gestational age at delivery significantly improved with LNS-PLW supplementation (Group 2, 38.64 ± 0.78 weeks; Group 1, 36.88 ± 1.55 weeks, p-value 0.006). The Apgar score (Group 2, 9.3; Group 1, 8.4) and the birth weight of the babies improved with maternal supplementation with LNS-PLW (Group 2, 38.64 ± 0.78 weeks: Group 1, 36.88 ± 1.55; p-value 0.003). There was no significant difference in systolic blood pressure, while diastolic blood pressure (Group 2, 89.57 ± 2.08 mmHg; Group 1, 92.17 ± 5.18 mmHg, p-value 0.025) showed significant improvement with LNS-PLW supplementation. The hemoglobin concentration increased with the LNS-PLW supplement consumed in Group 2 (Group 2, 12.15 ± 0.78 g/dL; Group 1, 11.39 ± 0.48 g/dL, p-value < 0.001). However, no significant difference among the platelet counts of the two groups was observed. Conclusions: The pregnancy and maternal outcomes of underweight pre-eclamptic women can be improved by the prenatal daily supplementation of LNS-PLW during pregnancy, along with IFA and regular antenatal care and follow-up.
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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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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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Abstract
This review focuses on pre- and post-natal iron supplementation in malaria endemic settings. Although iron supplementation can reduce iron deficiency, malaria infection may counteract this effect by the increase of hepcidin, and iron supplementation may further worsen malaria infection by providing additional iron for the parasites. However, most iron supplementation intervention studies in pregnant women with malaria have not shown a negative impact, although malaria treatment with iron supplementation may be beneficial in terms of improving birth outcomes. In infants and young children in malaria endemic settings, the adverse effects of iron supplementation has been well documented and malaria prevention and treatment with iron supplementation is recommended. Besides fostering the growth of malaria parasites, iron may also promote potential pathogens in the gut and cause an inflammatory response in young children. Overall, iron supplementation is beneficial for treating iron deficiency, but needs to be considered in the context of malaria prevention and treatment in pregnant women, infants and young children for safety and effectiveness.
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MESH Headings
- Adult
- Anemia, Iron-Deficiency/prevention & control
- Child, Preschool
- Dietary Supplements/adverse effects
- Endemic Diseases
- Female
- Guidelines as Topic
- Hepcidins/blood
- Humans
- Infant
- Infant, Newborn
- Iron, Dietary/administration & dosage
- Iron, Dietary/adverse effects
- Iron, Dietary/therapeutic use
- Malaria/blood
- Malaria/drug therapy
- Male
- Maternal Health
- Maternal Nutritional Physiological Phenomena
- Pregnancy
- Pregnancy Complications, Infectious/blood
- Pregnancy Complications, Infectious/drug therapy
- Pregnancy Complications, Parasitic/blood
- Pregnancy Complications, Parasitic/drug therapy
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Affiliation(s)
- Minghua Tang
- Department of Pediatrics, Section of Nutrition, University of Colorado School of Medicine, 12700 E 19th Avenue Box C225, Aurora, CO 80045, United States
| | - Nancy F Krebs
- Department of Pediatrics, Section of Nutrition, University of Colorado School of Medicine, 12700 E 19th Avenue Box C225, Aurora, CO 80045, United States.
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Nkhoma M, Ashorn P, Ashorn U, Dewey KG, Gondwe A, Maleta K. Lipid based nutrient supplements during pregnancy may improve foetal growth in HIV infected women - A cohort study. PLoS One 2019; 14:e0215760. [PMID: 31048878 PMCID: PMC6497372 DOI: 10.1371/journal.pone.0215760] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Accepted: 04/07/2019] [Indexed: 01/11/2023] Open
Abstract
OBJECTIVES Both maternal HIV infection and antiretroviral therapy are associated with adverse birth outcomes. The role of antenatal nutrient supplements with regard to adverse birth outcomes in HIV infected women exposed to antiretroviral therapy is not well known. We assessed the association between HIV and birth outcomes and explored whether antenatal lipid-based nutrient supplements (LNS) modulated this association. METHODS We analysed a nested cohort of pregnant Malawian women who received daily LNS, multiple micronutrients (MMN) or iron and folic acid (IFA). Birth weight, length-for-age z-score (LAZ) and weight-for-age z-score (WAZ) were analysed as continuous outcomes and proportion of stunting and small-for-gestational age (SGA) as dichotomous outcomes. RESULTS 134 HIV infected (46 LNS, 39 MMN, 49 IFA) and 833 HIV uninfected (271 LNS, 287 MMN, 275 IFA) women were included. Maternal HIV infection was associated with a lower mean birth weight (-129g (-209, -48), P = 0.002); LAZ (-0.34 (-0.54, -0.13), P = 0.002) and WAZ (-0.21 (-0.40, -0.02), P = 0.041) and a higher risk of stunting (RR (95% confidence interval), 1.87 (1.24, 2.83), P = 0.003) and SGA (1.66 (1.21, 2.26), P = 0.001) in the newborn. If the women received LNS, HIV was not associated with LAZ (mean difference (95%); -0.02 (-0.35, 0.31), P = 0.918) or newborn stunting (RR (95% CI), 0.84 (0.34, 2.03), P = 0.691). However HIV tended to be associated with LAZ if the women received MMN (-0.42 (-0.80, -0.03), P = 0.053); and was significantly associated with LAZ if the women received IFA (-0.52 (-0.89, -0.14), P = 0.021) and with newborn stunting if they received MMN (2.40 (1.15, 4.98), P = 0.029) or IFA (2.40 (1.26, 4.59), P = 0.024). CONCLUSIONS Further research to investigate the impact of LNS on various aspects of foetal growth in HIV infected women is warranted.
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Affiliation(s)
- Minyanga Nkhoma
- Centre for Child Health Research, Faculty of Medicine and Health Technology, Tampere, University, Tampere, Finland
| | - Per Ashorn
- Centre for Child Health Research, Faculty of Medicine and Health Technology, Tampere, University, Tampere, Finland
- Department of Paediatrics, Tampere University Hospital, Tampere, Finland
| | - Ulla Ashorn
- Centre for Child Health Research, Faculty of Medicine and Health Technology, Tampere, University, Tampere, Finland
| | - Kathryn G. Dewey
- Department of Nutrition, University of California Davis, Davis, California, United States of America
| | - Austrida Gondwe
- Centre for Child Health Research, Faculty of Medicine and Health Technology, Tampere, University, Tampere, Finland
| | - Kenneth Maleta
- School of Public Health and Family Medicine, University of Malawi College of Medicine, Blantyre, Malawi
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9
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Oaks BM, Jorgensen JM, Baldiviez LM, Adu-Afarwuah S, Maleta K, Okronipa H, Sadalaki J, Lartey A, Ashorn P, Ashorn U, Vosti S, Allen LH, Dewey KG. Prenatal Iron Deficiency and Replete Iron Status Are Associated with Adverse Birth Outcomes, but Associations Differ in Ghana and Malawi. J Nutr 2019; 149:513-521. [PMID: 30629202 PMCID: PMC6398386 DOI: 10.1093/jn/nxy278] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Revised: 05/29/2018] [Accepted: 10/08/2018] [Indexed: 01/12/2023] Open
Abstract
BACKGROUND Previous literature suggests a U-shaped relation between hemoglobin concentration and adverse birth outcomes. There is less evidence on associations between iron status and birth outcomes. OBJECTIVE Our objective was to determine the associations of maternal hemoglobin concentration and iron status with birth outcomes. METHODS We conducted a secondary data analysis of data from 2 cohorts of pregnant women receiving iron-containing nutritional supplements (20-60 mg ferrous sulfate) in Ghana (n = 1137) and Malawi (n = 1243). Hemoglobin concentration and 2 markers of iron status [zinc protoporphyrin and soluble transferrin receptor (sTfR)] were measured at ≤20 weeks and 36 weeks of gestation. We used linear and Poisson regression models and birth outcomes included preterm birth (PTB), newborn stunting, low birth weight (LBW), and small-for-gestational-age. RESULTS Prevalence of iron deficiency (sTfR >6.0 mg/L) at enrollment was 9% in Ghana and 20% in Malawi. In early pregnancy, iron deficiency was associated with PTB (9% compared with 17%, adjusted RR: 1.63; 95% CI: 1.14, 2.33) and stunting (15% compared with 23%, adjusted RR: 1.44; 95% CI: 1.09, 1.94) in Malawi but not Ghana, and was not associated with LBW in either country; replete iron status (sTfR <10th percentile) was associated with stunting (9% compared with 15%, adjusted RR: 1.71; 95% CI: 1.06, 2.77) in Ghana, but not PTB or LBW, and was not associated with any birth outcomes in Malawi. In late pregnancy, iron deficiency was not related to birth outcomes in either country and iron-replete status was associated with higher risk of LBW (8% compared with 16%, adjusted RR: 1.90; 95% CI: 1.17, 3.09) and stunting (6% compared with 13%, adjusted RR: 2.14; 95% CI: 1.21, 3.77) in Ghana, but was not associated with birth outcomes in Malawi. CONCLUSIONS The associations of low or replete iron status with birth outcomes are population specific. Research to replicate and extend these findings would be beneficial. These trials were registered at clinicaltrials.gov as NCT00970866 (Ghana) and NCT01239693 (Malawi).
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Affiliation(s)
- Brietta M Oaks
- Department of Nutrition and Food Sciences, University of Rhode Island, Kingston, RI,Address correspondence to BMO (e-mail: )
| | - Josh M Jorgensen
- Program in International and Community Nutrition, Department of Nutrition
| | - Lacey M Baldiviez
- USDA, Agricultural Research Service Western Human Nutrition Research Center, Davis, CA
| | - Seth Adu-Afarwuah
- Department of Nutrition and Food Science, University of Ghana, Legon, Ghana
| | - Ken Maleta
- Department of Community Health, University of Malawi College of Medicine, Blantyre, Malawi
| | - Harriet Okronipa
- Program in International and Community Nutrition, Department of Nutrition,Department of Nutrition and Food Science, University of Ghana, Legon, Ghana
| | - John Sadalaki
- Department of Community Health, University of Malawi College of Medicine, Blantyre, Malawi
| | - Anna Lartey
- Department of Nutrition and Food Science, University of Ghana, Legon, Ghana
| | - Per Ashorn
- Department of Paediatrics, Tampere University Hospital, Tampere, Finland
| | - Ulla Ashorn
- Department of Paediatrics, Tampere University Hospital, Tampere, Finland,Center for Child Health Research, University of Tampere Faculty of Medicine and Life Sciences and Tampere University Hospital, Tampere, Finland
| | - Stephen Vosti
- Department of Agricultural and Resource Economics, University of California, Davis, CA
| | - Lindsay H Allen
- USDA, Agricultural Research Service Western Human Nutrition Research Center, Davis, CA
| | - Kathryn G Dewey
- Program in International and Community Nutrition, Department of Nutrition
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10
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Jorgensen JM, Ashorn P, Ashorn U, Baldiviez LM, Gondwe A, Maleta K, Nkhoma M, Dewey KG. Effects of lipid-based nutrient supplements or multiple micronutrient supplements compared with iron and folic acid supplements during pregnancy on maternal haemoglobin and iron status. MATERNAL & CHILD NUTRITION 2018; 14:e12640. [PMID: 30047245 PMCID: PMC6175407 DOI: 10.1111/mcn.12640] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Revised: 05/17/2018] [Accepted: 05/22/2018] [Indexed: 12/20/2022]
Abstract
We examined the effect of three types of prenatal supplements containing different amounts of iron on haemoglobin (Hb) and iron status (zinc protoporphyrin [ZPP] and soluble transferrin receptor [sTfR]) in late pregnancy among 1,379 women in rural Malawi. Participants were recruited at ≤20 gestational weeks (gw) and randomly assigned to consume daily (1) 60-mg iron and folic acid (IFA); (2) 20-mg iron plus 17 micronutrients in a capsule (MMN); or (3) lipid-based nutrient supplement (LNS; 118 kcal) with 20-mg iron plus 21 micronutrients, protein, and fat. We analysed differences between intervention groups in mean Hb, ZPP, and sTfR at 36 gw, and the proportion with anaemia (Hb < 100 g L-1 ) and iron deficiency (ZPP > 60 μmol mol-1 haem or sTfR > 6 mg L-1 ) at 36 gw. Women in the IFA group had higher Hb at 36 gw than women in the LNS group (P = 0.030) and higher iron status (lower ZPP and sTfR) than women in both the LNS (P < 0.001 for both ZPP and sTfR) and MMN (P = 0.025 and P = 0.046) groups. Results for anaemia and iron deficiency showed similar trends. Further research is needed to elucidate the appropriate amount of iron to improve Hb and iron status, while improving birth outcomes.
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Affiliation(s)
- Josh M. Jorgensen
- Program in International and Community Nutrition, Department of NutritionUniversity of CaliforniaDavisCaliforniaUSA
| | - Per Ashorn
- Department of PaediatricsTampere University HospitalTampereFinland
- Faculty of Medicine and Life SciencesUniversity of TampereTampereFinland
| | - Ulla Ashorn
- Center for Child Health ResearchUniversity of Tampere School of Medicine and Tampere University HospitalTampereFinland
| | - Lacey M. Baldiviez
- Program in International and Community Nutrition, Department of NutritionUniversity of CaliforniaDavisCaliforniaUSA
| | - Austrida Gondwe
- Department of Community HealthUniversity of Malawi College of MedicineBlantyreMalawi
| | - Ken Maleta
- Department of Community HealthUniversity of Malawi College of MedicineBlantyreMalawi
| | - Minyanga Nkhoma
- Department of Community HealthUniversity of Malawi College of MedicineBlantyreMalawi
| | - Kathryn G. Dewey
- Program in International and Community Nutrition, Department of NutritionUniversity of CaliforniaDavisCaliforniaUSA
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