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O'Toole F, Sheane R, Reynaud N, McAuliffe FM, Walsh JM. Screening and treatment of iron deficiency anemia in pregnancy: A review and appraisal of current international guidelines. Int J Gynaecol Obstet 2024; 166:214-227. [PMID: 38069617 DOI: 10.1002/ijgo.15270] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 11/12/2023] [Indexed: 06/27/2024]
Abstract
Iron deficiency anemia (IDA) in pregnancy is a common diagnosis that is associated with adverse obstetric and neonatal outcomes. There remains uncertainty regarding how best to screen for, prevent, and treat established IDA in pregnancy. There is no consensus on the benefits of routine iron supplementation in pregnancy, with concerns regarding potential harmful effects of routine iron supplementation in women who are iron replete. Fourteen international guidelines were selected and appraised and compared by a multidisciplinary team. The AGREE II GRS tool was used. Each reviewer independently made their own assessment, and the scores from 1 to 7 were also collated and averaged for an overall score incorporating seven domains: process of development, clarity of presentation, completeness of reporting, clinical validity, and overall quality. The reviewers' scores were also individually compared according to discipline. The mean score across all the guidelines was 4.4 (range 3.5-6.5). Only half of the guidelines recommend routine iron in pregnancy. In terms of screening recommendations, five guidelines recommend screening with ferritin in addition to a full blood count in pregnancy, two recommend selective screening with ferritin for at risk groups only, and one guideline suggests using ferritin where feasible. Although many of the guidelines recommend similar doses of oral elemental iron of 100-200 mg daily for the treatment of established IDA in pregnancy, two recommend twice or three times daily dosing. Only five guidelines give hemoglobin rises to expect within specific timeframes. There remains a need to clarify the optimal screening method, dosing regimen, timing, and route of iron supplementation in pregnancy. Robust randomized controlled data are needed to guide appropriate prevention and management.
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Affiliation(s)
- Fiona O'Toole
- UCD Perinatal Research Centre, School of Medicine, University College Dublin, National Maternity Hospital, Dublin, Ireland
| | - Rachel Sheane
- Department of Dietetics, National Maternity Hospital, Dublin, Ireland
| | - Niamh Reynaud
- Department of Hematology, St Vincent's University Hospital, Dublin, Ireland
| | - Fionnuala M McAuliffe
- UCD Perinatal Research Centre, School of Medicine, University College Dublin, National Maternity Hospital, Dublin, Ireland
| | - Jennifer M Walsh
- UCD Perinatal Research Centre, School of Medicine, University College Dublin, National Maternity Hospital, Dublin, Ireland
- Obstetrics & Gynecology, National Maternity Hospital, Dublin, Ireland
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Locks LM, Bhaise S, Dhurde V, Gugel A, Lauer J, Shah M, Gogarhi A, Hibberd PL, Patel A. The prevalence of anemia during pregnancy and its correlates vary by trimester and hemoglobin assessment method in Eastern Maharashtra, India. MATERNAL & CHILD NUTRITION 2024:e13684. [PMID: 38943254 DOI: 10.1111/mcn.13684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 05/10/2024] [Accepted: 05/29/2024] [Indexed: 07/01/2024]
Abstract
Approximately half of pregnant women in India are anemic, representing over 7.5 million women. Few studies have assessed the relationship between multiple micronutrient deficiencies and anemia during pregnancy or the trajectory of hemoglobin (Hb) during pregnancy in low-resource settings. We enrolled 200 pregnant women from the Maternal and Newborn Health (MNH) registry, a population-based pregnancy and birth registry in Eastern Maharashtra, India to address these gaps. The women provided capillary (finger-prick) and venous blood specimens at enrollment (<15 weeks), and a second capillary specimen in the 3rd trimester (>27 weeks). Capillary specimens were analyzed at the time of collection with a HemoCue Hb 201+; venous specimens were shipped on dry ice to a laboratory for cyanmethemoglobin assessment. In the 1st trimester, mean Hb concentration and anemia (Hb<11.0 g/dL) prevalence using capillary specimens were 10.9 ± 1.5 g/dL and 51.1%; mean Hb concentration using venous blood specimens was estimated to be 11.3 ± 1.3 g/dL and anemia prevalence was 37.5%. The prevalence of iron, vitamin B12 and folate deficiencies were 40%, 30% and 0%, respectively. Among women with anemia in the 1st trimester (venous blood), 56% had concurrent iron deficiency (inflammation-adjusted serum ferritin <15 µg/L) indicating that their anemia may be amenable to iron supplementation. In total, 21% of women had ID and anemia, 19% ID in the absence of anemia, 16.5% anemia in the absence of ID and 43.5% had neither. By the 3rd trimester, mean Hb from capillary specimens had declined to 10.1 ± 1.35 g/dL and anemia prevalence increased to 70.7%, despite 99.4% mothers reporting receipt of iron-folic acid (IFA) supplements during her current pregnancy, and 83.9% reporting IFA consumption the previous day. Significant predictors of anemia in the 1st trimester (both venous and capillary) included the number of weeks gestation at the time of Hb assessment and inflammation-adjusted serum ferritin. For 3rd trimester anemia, significant predictors included 1st trimester height, BMI and IFA consumption during the 3rd trimester (but not 1st trimester micronutrient biomarkers), indicating that IFA supplementation over the course of pregnancy may have influenced micronutrient status and anemia risk. Our findings highlight the severity of the burden of anemia and micronutrient deficiencies in Eastern Maharashtra, but also highlight that in many cases, ID and anemia affect different individuals. Preventing and managing anemia in pregnancy in India will require strengthening both clinical and community-based strategies targeting iron deficiency, as well as other causes of anemia.
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Affiliation(s)
- Lindsey M Locks
- Department of Health Sciences, Sargent College of Health and Rehabilitation Sciences, Boston University, Boston, Massachusetts, USA
- Department of Global Health, School of Public Health, Boston University, Boston, Massachusetts, USA
| | | | | | - Abigail Gugel
- Department of Global Health, School of Public Health, Boston University, Boston, Massachusetts, USA
| | - Jacqueline Lauer
- Department of Health Sciences, Sargent College of Health and Rehabilitation Sciences, Boston University, Boston, Massachusetts, USA
| | - Miloni Shah
- Department of Global Health, School of Public Health, Boston University, Boston, Massachusetts, USA
| | - Aboli Gogarhi
- Department of Global Health, School of Public Health, Boston University, Boston, Massachusetts, USA
| | - Patricia L Hibberd
- Department of Global Health, School of Public Health, Boston University, Boston, Massachusetts, USA
- School of Medicine, Boston University, Boston, Massachusetts, USA
| | - Archana Patel
- Lata Medical Research Foundation, Nagpur, India
- Datta Meghe Institute of Higher Education and Research, Wardha, India
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Damanhuri NH, Hairi NN, Ismail M, Jeganathan R, Karalasingam SD, Nasir MJM, Soelar SA, Musa KI, Tengku Ismail TA. Spontaneous Preterm Births in Malaysia: Are There Modifiable Antenatal Risk Factors? Cureus 2024; 16:e59152. [PMID: 38680821 PMCID: PMC11055571 DOI: 10.7759/cureus.59152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/24/2024] [Indexed: 05/01/2024] Open
Abstract
Background Spontaneous preterm birth (SPB) is a global public health concern with devastating health effects on SPB survivors. This study aimed to determine modifiable antenatal risk factors associated with SPB among women attending government healthcare facilities in Malaysia. Methodology A retrospective record review of 49,416 national obstetrics registry data from 2015 was conducted and analyzed using binary logistic regression based on six antenatal factor divisions. Results Mothers with pre-existing diabetes had higher odds (adjusted odds ratio (aOR) = 3.09) of delivering prematurely than mothers without diabetes. Mothers with chronic hypertension with superimposed pre-eclampsia (aOR = 2.51) and gestational hypertension (aOR = 1.44) had higher odds of experiencing preterm birth than mothers with no hypertension. Underweight mothers had higher odds (aOR = 1.27) of delivering prematurely than mothers with an ideal body mass index (18.5 to <25.0 kg/m2). Mothers with moderate anemia (hemoglobin level: 7 to <9 g/dL) had higher odds (aOR = 1.18) of preterm birth than mothers with normal hemoglobin levels (≥11 g/dL). Conclusions Maternal biomarkers, such as glucose level, blood pressure, BMI, and hemoglobin level, play an important role in reducing the rate of SPB in Malaysia. This study recommends strengthening pre-pregnancy, antenatal, and postpartum care through multidisciplinary and multi-agency team collaboration, addressing both modifiable and non-modifiable risk factors and adopting a dual approach that combines preventive and curative care.
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Affiliation(s)
- Narisa H Damanhuri
- Department of Social and Preventive Medicine, Faculty of Medicine, Universiti Malaya, Kuala Lumpur, MYS
| | - Noran N Hairi
- Department of Social and Preventive Medicine, Faculty of Medicine, Universiti Malaya, Kuala Lumpur, MYS
| | - Maslinor Ismail
- Department of Social and Preventive Medicine, Faculty of Medicine, Universiti Malaya, Kuala Lumpur, MYS
| | | | | | | | | | - Kamarul Imran Musa
- Department of Community Medicine, School of Medical Sciences, Universiti Sains Malaysia, Kelantan, MYS
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Edelson PK, Cao D, James KE, Ngonzi J, Roberts DJ, Bebell LM, Boatin AA. Maternal anemia is associated with adverse maternal and neonatal outcomes in Mbarara, Uganda. J Matern Fetal Neonatal Med 2023; 36:2190834. [PMID: 37312571 PMCID: PMC10419325 DOI: 10.1080/14767058.2023.2190834] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 02/28/2023] [Accepted: 03/09/2023] [Indexed: 06/15/2023]
Abstract
PURPOSE Maternal anemia is a significant risk factor for maternal morbidity and mortality, increasing risk of preterm birth, intrauterine growth restriction, stillbirth, and death. Moderate and severe anemia in pregnancy is defined as hemoglobin (Hb) <10 g/dl and Hb < 7 g/dl, respectively. We aimed to characterize the association of maternal anemia with maternal, neonatal, and placental outcomes in a resource-limited setting. METHODS Data were collected from a prospective cohort of 352 pregnant women at a tertiary academic Ugandan hospital. One hundred and seventy-six (50%) of women were living with HIV. Hemoglobin was measured in labor, and placentas were collected postpartum. Maternal outcomes included mode of delivery, hemorrhage, blood transfusion, intensive care unit admission, and maternal mortality. Neonatal outcomes included gestational age at delivery, birthweight, stillbirth, and neonatal mortality. Placental descriptors included weight and thickness. Categorical variables were analyzed using Chi-squared and Fisher's exact tests. RESULTS Hemoglobin < 10 g/dl, was present in 17/352 (5%) of women. Significantly more women with moderate or severe anemia were HIV-infected: 14/17 (82%) versus 162/335 (48%) (p = .006). Blood transfusions (2/17, 12% versus 5/335, 2%, p = .04) and neonatal deaths (2/17, 12% versus 9/335, 3%, p = .01) were more common in the anemia group. Placental thickness was lower in the anemia group (1.4 cm versus 1.7 cm, p = .04). CONCLUSIONS Moderate and severe anemia was associated with maternal HIV infection, maternal blood transfusion, neonatal death, and decreased placental thickness. The overall rate of moderate and severe anemia among this cohort was lower than previously reported.
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Affiliation(s)
- P. Kaitlyn Edelson
- Department of Obstetrics and Gynecology, University of Pennsylvania, Philadelphia, PA, USA
| | - Danni Cao
- Brandeis University, Waltham, MA, USA
| | - Kaitlyn E. James
- Department of Obstetrics and Gynecology, Massachusetts General Hospital, Boston, MA, USA
| | - Joseph Ngonzi
- Department of Obstetrics and Gynaecology, Mbarara University of Science and Technology, Mbarara, Uganda
| | | | - Lisa M. Bebell
- Infectious Diseases Division, Massachusetts General Hospital, Boston, MA, USA
- Center for Global Health, Massachusetts General Hospital, Boston, MA, USA
| | - Adeline A. Boatin
- Department of Obstetrics and Gynecology, Massachusetts General Hospital, Boston, MA, USA
- Center for Global Health, Massachusetts General Hospital, Boston, MA, USA
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Song X, Lin J, Dong X, Li M, Xue X, Hou C, Yao H, Hou Q. The Associations of Maternal Blood Hemoglobin and Serum Triglyceride Levels and the Risk of Preterm Delivery. Horm Metab Res 2023; 55:758-764. [PMID: 37903496 DOI: 10.1055/a-2183-8683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/01/2023]
Abstract
The abnormal hemoglobin (HGB) and serum lipid concentrations during pregnancy will increase the risk of preterm delivery. Our study aimed to explore the correlation between prenatal HGB and serum lipid levels and preterm delivery. We enrolled 215 mother-infant pairs in a pilot cohort study. The logistic regression model and Restricted Cubic Spline model (RCS) were used to investigate the levels of prenatal blood HGB and serum lipid such as triglyceride (TG), total cholesterol, high-density lipoprotein, low density lipoprotein and preterm delivery. The results showed that moderate levels of prenatal blood HGB (OR=0.28; 95%CI: 0.10, 0.75, p-trend=0.018) and high level of serum TG (OR=0.29; 95%CI: 0.10, 0.84, p-trend=0.022) level were negatively associated with the risk of preterm delivery. The joint effect results showed that compared with lower level of prenatal blood HGB (≤123.13 g/l) and TG (≤3.7 mmol/l), we found that high levels prenatal blood HGB and serum TG (OR=0.32, 95%CI: 0.12, 0.89) had a negative association with the risk of preterm delivery. Moreover, prenatal blood HGB and serum TG levels had negative linear dose-effect relationships with the risk of preterm delivery in overall and girl group (p<0.05). Moderate levels of prenatal blood HGB and high level of serum TG were negatively associated with the risk of preterm delivery. The joint effect of high levels prenatal HGB and prenatal serum TG in the normal range were negatively correlated with preterm delivery. Moreover, the underlying mechanisms should be clarified in future studies.
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Affiliation(s)
- Xia Song
- Gynecology, Shandong Provincial Maternal and Child Health Care Hospital, Jinan, China
| | - Jiujing Lin
- School of Public Health and Health Management, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Xiaoxiao Dong
- Shandong Provincial Maternal and Child Health Care Hospital, Shandong, Jinan, China
| | - Mengyun Li
- Gynecology, Shandong Provincial Maternal and Child Health Care Hospital, Jinan, China
| | - Xiangsheng Xue
- School of Public Health and Health Management, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Chenyang Hou
- Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Huichen Yao
- Cardiology Department, The Third Affiliated Hospital of Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Qingzhi Hou
- School of Public Health and Health Management, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
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Liu C, Zhang Q, Hui P, Wang Y, Li G, Cao G, Xue Z, Zhang J, Zhang H, Huang X, Wu J, Sun F, Yan M. Safety monitoring of oral iron supplements in pregnant women with anemia: a multi-center observational clinical study. Ther Adv Drug Saf 2023; 14:20420986231181335. [PMID: 37377748 PMCID: PMC10291403 DOI: 10.1177/20420986231181335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 05/22/2023] [Indexed: 06/29/2023] Open
Abstract
Aims To investigate the safety of oral iron therapy in pregnant women with iron-deficiency anemia (IDA) in the real world. Methods A retrospective analysis was performed on 1792 pregnant patients with IDA who received oral iron supplements from 12 hospitals in Shandong Province from 1 April to 31 June 2021; follow-up and adverse reactions were recorded. They were divided into six groups according to the treatment drugs. Results The overall adverse reaction rate was 15.4%, and the main adverse reaction site was the digestive system. The incidence of all kinds of oral iron adverse reactions from high to low in order: compound ferrous sulfate and folic acid tablets (21.88%); iron proteinsuccinylate oral solution (20.90%); ferrous succinate tablets (19.76%); ferrous succinate sustained-release tablets (18.00%); iron polysaccharide complex capsule (12.06%); and iron dextran oral solution (6.94%). It was found that there was a significant difference in the incidence of adverse reactions among the six drugs (p < 0.05). Pairwise comparison showed that the incidence of adverse reactions was higher in the iron proteinsuccinylate oral solution than that in the iron polysaccharide complex capsule (p < 0.05). There was no significant difference in the incidence of adverse reactions in different ages (p > 0.05), but there was a significant difference in the incidence of adverse reactions in different gestational ages (p < 0.05). In Adverse Drug Reaction (ADR) patients, the adverse reaction result of most patients is recovery or improvement, and there was no serious adverse reaction outcome such as sequela and death. Conclusion All the adverse reactions of oral iron were mainly gastrointestinal adverse reactions, and no heavy adverse reactions were found. Iron proteinsuccinylate oral solution has a higher incidence of adverse reactions than iron polysaccharide complex capsule. The results showed that oral iron was safer for anemia patients during pregnancy.
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Affiliation(s)
- Chang Liu
- Ocean University of China, Qingdao, Shandong, China
- Qingdao University Affiliated Qingdao Women and Children’s Hospital, Qingdao, Shandong, China
| | | | - Peiye Hui
- Weifang Maternal and Child Health Hospital, Weifang, Shandong, China
| | - Yan Wang
- Tengzhou Maternal and Child Health Hospital, Tengzhou, Shandong, China
| | - Guohui Li
- Jinan Maternal and Child Health Hospital, Jinan, Shandong, China
| | - Guangchao Cao
- Linyi Maternal and Child Health Hospital, Linyi, Shandong, China
| | - Zicheng Xue
- Zaozhuang Maternal and Child Health Hospital, Zaozhuang, Shandong, China
| | - Jing Zhang
- Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Heng Zhang
- Qingdao Haici Hospital, Qingdao, Shandong, China
| | - Xin Huang
- Shandong Qianfuo Mountain Hospital, Jinan, Shandong, China
| | - Jiyong Wu
- The Second People’s Hospital of Shandong Province, Jinan, Shandong, China
| | - Fusehng Sun
- Qingdao Municipal Hospital Group, Qingdao, Shandong, China
| | - Meixing Yan
- Qingdao University Affiliated Qingdao Women and Children’s Hospital, No. 217, Liaoyang East Road, North District, Qingdao, Shandong, China
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Young MF, Oaks BM, Rogers HP, Tandon S, Martorell R, Dewey KG, Wendt AS. Maternal low and high hemoglobin concentrations and associations with adverse maternal and infant health outcomes: an updated global systematic review and meta-analysis. BMC Pregnancy Childbirth 2023; 23:264. [PMID: 37076797 PMCID: PMC10114461 DOI: 10.1186/s12884-023-05489-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 03/02/2023] [Indexed: 04/21/2023] Open
Abstract
BACKGROUND Growing evidence suggests low and high maternal hemoglobin (Hb) concentrations may have adverse consequences for maternal and child health. There remain questions on specific Hb thresholds to define anemia and high Hb as well as how cutoffs may vary by anemia etiology and timing of assessment. METHODS We conducted an updated systematic review (using PubMed and Cochrane Review) on low (< 110 g/L) and high (≥ 130 g/L) maternal Hb concentrations and associations with a range of maternal and infant health outcomes. We examined associations by timing of Hb assessment (preconception; first, second, and third trimesters, as well as at any time point in pregnancy), varying cutoffs used for defining low and high hemoglobin concentrations and performed stratified analyses by iron-deficiency anemia. We conducted meta-analyses to obtain odds ratios (OR) and 95% confidence intervals. RESULTS The updated systematic review included 148 studies. Low maternal Hb at any time point in pregnancy was associated with: low birthweight, LBW (OR (95% CI) 1.28 (1.22-1.35)), very low birthweight, VLBW (2.15 (1.47-3.13)), preterm birth, PTB (1.35 (1.29-1.42)), small-for-gestational age, SGA (1.11 (1.02-1.19)), stillbirth 1.43 (1.24-1.65)), perinatal mortality (1.75 (1.28-2.39)), neonatal mortality (1.25 (1.16-1.34), postpartum hemorrhage (1.69 (1.45-1.97)), transfusion (3.68 (2.58-5.26)), pre-eclampsia (1.57 (1.23-2.01)), and prenatal depression (1.44 (1.24-1.68)). For maternal mortality, the OR was higher for Hb < 90 (4.83 (2.17-10.74)) than for Hb < 100 (2.87 (1.08-7.67)). High maternal Hb was associated with: VLBW (1.35 (1.16-1.57)), PTB (1.12 (1.00-1.25)), SGA (1.17 (1.09-1.25)), stillbirth (1.32 (1.09-1.60)), maternal mortality (2.01 (1.12-3.61)), gestational diabetes (1.71 (1.19-2.46)), and pre-eclampsia (1.34 (1.16-1.56)). Stronger associations were noted earlier in pregnancy for low Hb and adverse birth outcomes while the role of timing of high Hb was inconsistent. Lower Hb cutoffs were associated with greater odds of poor outcomes; for high Hb, data were too limited to identify patterns. Information on anemia etiology was limited; relationships did not vary by iron-deficiency anemia. CONCLUSION Both low and high maternal Hb concentrations during pregnancy are strong predictors of adverse maternal and infant health outcomes. Additional research is needed to establish healthy reference ranges and design effective interventions to optimize maternal Hb during pregnancy.
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Affiliation(s)
- Melissa F Young
- Hubert Department of Global Health, Emory University, 1518 Clifton Road NE, 30322, Atlanta, GA, USA.
| | - Brietta M Oaks
- Department of Nutrition and Food Sciences, University of Rhode Island, 02881, Kingston, United States
| | - Hannah Paige Rogers
- Hubert Department of Global Health, Emory University, 1518 Clifton Road NE, 30322, Atlanta, GA, USA
| | - Sonia Tandon
- Hubert Department of Global Health, Emory University, 1518 Clifton Road NE, 30322, Atlanta, GA, USA
| | - Reynaldo Martorell
- Hubert Department of Global Health, Emory University, 1518 Clifton Road NE, 30322, Atlanta, GA, USA
| | - Kathryn G Dewey
- Department of Nutrition, University of California, Davis, 95616, Davis, United States
| | - Amanda S Wendt
- Research Department 2, Potsdam Institute for Climate Impact Research (PIK), Member of the Leibniz Association, PO Box 60 12 03, 14412,, Potsdam, Germany
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Sindiani A, Awadallah E, Alshdaifat E, Melhem S, Kheirallah K. The relationship between maternal health and neonatal low birth weight in Amman, Jordan: a case-control study. J Med Life 2023; 16:290-298. [PMID: 36937486 PMCID: PMC10015569 DOI: 10.25122/jml-2022-0257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Accepted: 01/30/2023] [Indexed: 03/21/2023] Open
Abstract
This study aimed to examine the relationship between maternal health during pregnancy and low birth weight (LBW), as well as the impact of COVID-19 on the socio-economic status of pregnant women and its effect on LBW. The study was conducted in Amman, Jordan, and included 2260 mothers who visited Abu-Nusair comprehensive health center between January and December 2020. A matched case-control design was used with 72 cases and 148 controls selected for data collection through medical records and face-to-face interviews. Results showed that factors such as a monthly income of 400 JD or less, living with an extended family, exposure to passive smoking, maternal weight gain of 6-10 kg, maternal anemia, maternal hypertension, delivery by cesarean section, and previous history of LBW newborns were positively associated with an increased risk of LBW. Conversely, factors such as a monthly income above 700 JD, living with a core family, daily intake of iron, calcium, and vitamin D, prenatal visits, healthy food intake, and planning for pregnancy were associated with a lower risk of LBW. COVID-19 infection and its effects on work, family finances, antenatal care visits, and food supply were also positively linked with LBW. In conclusion, socioeconomic status, maternal health, COVID-19, and its impacts were significant risk factors for LBW.
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Affiliation(s)
- Amer Sindiani
- Department of Obstetrics and Gynecology, Faculty of Medicine, Jordan University of Science and Technology, Irbid, Jordan
- Corresponding Author: Amer Sindiani, Department of Obstetrics and Gynecology, Faculty of Medicine, Jordan University of Science and Technology, Irbid, Jordan. E-mail:
| | - Ekram Awadallah
- Department of Public Health, Faculty of Medicine, Jordan University of Science and Technology, Irbid, Jordan
| | - Eman Alshdaifat
- Department of Obstetrics and Gynecology, Faculty of Medicine, Yarmouk University, Irbid, Jordan
| | - Shatha Melhem
- Department of Obstetrics and Gynecology, Faculty of Medicine, Jordan University of Science and Technology, Irbid, Jordan
| | - Khalid Kheirallah
- Department of Public Health, Faculty of Medicine, Jordan University of Science and Technology, Irbid, Jordan
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Muacevic A, Adler JR, Mujalda A, Mujalda J, Yadav S, Kundal RK. The Effect of Sickle Cell Hemoglobinopathy on Pregnancy, Labor, Puerperium, and Fetal Outcome: A Retrospective Cohort Study From a Single Centre. Cureus 2023; 15:e34318. [PMID: 36865957 PMCID: PMC9971241 DOI: 10.7759/cureus.34318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/27/2023] [Indexed: 01/30/2023] Open
Abstract
INTRODUCTION Sickle cell disease (SCD) is a major risk factor as far as pregnancy and obstetric complications are concerned. It possesses major perinatal and postnatal mortality. The management of pregnancy along with SCD requires a multispecialty team consisting of hematologists, obstetricians, anesthesiologists, neonatologists and intensivists. OBJECTIVES The objective of this study was to investigate the effect of sickle cell hemoglobinopathy on pregnancy, labor, puerperium, and fetal outcome in the rural and urban localities of Maharashtra, India. MATERIAL AND METHODS The present study is a comparative retrospective analysis of 225 pregnant women with SCD (genotype AS and SS) and 100 age- and gravida-matched pregnant women with normal hemoglobin (genotype AA) as a control who were treated between June 2013 to June 2015, in Indira Gandhi Government Medical College (IGGMC), Nagpur, India. We analyzed various data regarding obstetrical outcomes and complications in sickle cell disease mothers. RESULTS Out of 225 pregnant women, 38 (16.89%) were diagnosed with homozygous sickle cell disease (SS group) while 187 (83.11%) were diagnosed with sickle cell trait (AS group). The most common antenatal complications were sickle cell crisis (17; 44.74%) and jaundice (15; 39.47%) in the SS group whereas pregnancy-induced hypertension (PIH) was noted in 33 (17.65%) in the AS group. Intrauterine growth restriction (IUGR) was recorded in 57.89% of the SS group and 21.39% of the AS group. A higher chance of emergency lower segment cesarean section (LSCS; 66.67% in the SS group and 79.09% in the AS group) was recorded as compared with the control group at 32%. CONCLUSION In order to minimize risks to the mother and fetus and for better outcomes it is prudent to manage pregnancy with SCD vigilantly in the antenatal period. In the antenatal period mothers with this disease should be screened for hydrops or bleeding manifestations such as intracerebral hemorrhage in the fetus. Better feto-maternal outcomes can be achieved by effective multispecialty intervention.
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Kabir MA, Rahman MM, Khan MN. Maternal anemia and risk of adverse maternal health and birth outcomes in Bangladesh: A nationwide population-based survey. PLoS One 2022; 17:e0277654. [PMID: 36525409 PMCID: PMC9757595 DOI: 10.1371/journal.pone.0277654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2022] [Accepted: 11/01/2022] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Maternal anemia is an ongoing public health challenge in low- and middle- income countries, including Bangladesh. The aim of this study was to explore the association of maternal anemia with a range of adverse maternal health and birth outcomes in Bangladesh. METHODS A total of 2,259 maternal women data was analyzed, extracted from the 2011 Bangladesh Demographic and Health Survey. Outcome variables considered were a range of maternal health and birth outcomes. Adverse maternal health outcomes were pregnancy complications, pregnancy termination, menstrual irregularities, cesarean delivery, diabetes, and hypertension. Adverse birth outcomes considered were low birth weight, stillbirths, early neonatal deaths, perinatal deaths, preterm birth, and prolonged labor. The main exposure variable was maternal anemia status. Mixed effect multilevel logistic/poisson regression model was used to determine the association between exposure and outcome variable adjusted for individual-, household-, and community-level factors. RESULTS The reported prevalence of anemia was 44%. A higher likelihoods pregnancy complication (AOR, 1.39, 95% CI, 1.09-2.41, p<0.05) and lower likelihoods of menstrual irregularities (AOR, 0.79, 95% CI, 0.58-0.94, p<0.05), diabetes (AOR, 0.78, 95% CI, 0.49-0.98, p<0.05) and hypertensive (AOR, 0.79, 95% CI, 0.60-0.96, p<0.05) were found among anemic maternal women as compared to the non-anemic maternal women. Adverse birth outcomes, including preterm birth (AOR, 2.03, 95% CI, 1.01-4.25, p<0.05), early neonatal mortality (AOR, 1.87, 95% CI, 1.06-5.10), and perinatal mortality (AOR, 1.54, 95% CI, 1.09-3.52, p<0.05), were also found higher among newborn of anemic maternal women as compared to the newborn of non-anemic maternal women. CONCLUSION Anemia during pregnancy increases the occurrence of adverse maternal health and birth outcomes. Strategies to reduce anemia, such as iron supplementation, during pregnancy and among reproductive-aged women need to be prioritized in the policies and programs.
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Affiliation(s)
- Md. Awal Kabir
- Department of Social Work, Pabna University of Science and Technology, Pabna, Bangladesh
| | - Md. Mostafizur Rahman
- Department of Population Science and Human Resource Development, University of Rajshahi, Rajshahi, Bangladesh
| | - Md. Nuruzzaman Khan
- Department of Population Science, Jatiya Kabi Kazi Nazrul Islam University, Mymensingh, Bangladesh
- * E-mail:
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11
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Cui F, Liu H, Li Y, Zheng TZ, Xu S, Xia W, Sheng X. Association of exposure to per- and polyfluoroalkyl substances with hemoglobin and hematocrit during pregnancy. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 248:114319. [PMID: 36423372 DOI: 10.1016/j.ecoenv.2022.114319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 11/17/2022] [Accepted: 11/18/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND Per- and polyfluoroalkyl substances (PFASs) are common environmental contaminants and are widely detected in humans. Previous studies have linked PFASs exposure to adverse birth outcomes. However, the association between maternal exposure to PFASs and hemoglobin (Hb) and hematocrit (HCT) remains unclear. OBJECTIVES We aimed to explore the relationship between PFASs exposure with Hb and HCT during pregnancy. METHODS The present birth cohort study included 1044 pregnant women from Wuhan, China. Maternal HCT and Hb were measured in the first, second and third trimesters, and 13 PFASs were detected in the cord sera. Mixed linear models and general linear regression were applied to analyze the association between each single PFASs and Hb and HCT. Weighted quantile sum (WQS) regressions were used to investigate the association between PFASs mixture and Hb and HCT during pregnancy. RESULTS In single-PFAS models, 10 PFASs were positively associated with HCT and Hb across pregnancy (a 10-fold increase in PFASs was associated with 1.47-3.54 % change in HCT and 1.46-3.20 % change in Hb (All P-FDR < 0.05). In addition, Hb and HCT were more positively related to PFASs in the second and third trimesters rather than the first trimester. The association between PFASs exposure and maternal HCT and Hb was not significant in the iron supplementation group, whereas significant in the non-iron supplementation group. A significant interaction between iron supplementation and non-iron supplementation was also detected. WQS regressions showed that perfluorononanoic acid (PFNA) and perfluorohexane sulfonate (PFHxS) contributed most to the association between PFASs and HCT and Hb in the second and third trimesters, respectively. CONCLUSION Maternal PFASs exposure was positive with serum Hb and HCT. Moreover, maternal iron supplementation may play a modifying effect in influencing the relationship between PFASs and HCT and Hb.
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Affiliation(s)
- Fengzhen Cui
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Hongxiu Liu
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Yuanyuan Li
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Tong-Zhang Zheng
- Department of Epidemiology, Brown University School of Public Health, Providence, RI, USA
| | - Shunqing Xu
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Wei Xia
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China.
| | - Xia Sheng
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China.
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12
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Liao Q, Tang P, Pan D, Song Y, Lei L, Liang J, Liu B, Lin M, Huang H, Mo M, Huang C, Wei M, Liu S, Huang D, Qiu X. Association of serum per- and polyfluoroalkyl substances and gestational anemia during different trimesters in Zhuang ethnic pregnancy women of Guangxi, China. CHEMOSPHERE 2022; 309:136798. [PMID: 36220436 DOI: 10.1016/j.chemosphere.2022.136798] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Revised: 10/04/2022] [Accepted: 10/05/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND Gestational anemia is a complication of pregnancy, and a low level of hemoglobin (Hb) has been linked to adverse pregnancy outcomes. Previous studies reported that PFASs were more strongly associated with Hb than red blood cells, indicating that Hb is more susceptible to the effect of PFASs. However, the evidences regarding the effects of per- and polyfluoroalkyl substances (PFASs) on gestational anemia are currently limited. Therefore, it is important to explore the effects of PFASs on anemia in Chinese pregnant women. METHODS A total of 821 pregnant women were recruited between June 2015 and April 2019 in the Guangxi Zhuang Birth Cohort. The concentrations of PFASs were assessed in maternal serum before 12 gestational weeks. To determine both individual and combined associations of PFASs exposure with anemia in the three stages of pregnancy, binary logistic regression, Bayesian kernel machine regression (BKMR), and weighted quantile sum (WQS) regression models were employed. RESULTS In single-pollutant analysis, maternal exposure to perfluorododecanoic acid (PFDoA) and perfluoroheptanoic acid (PFHpA) were associated with anemia in the first trimester, exposure to PFHpA and perfluorobutanesulfonic acid (PFBS) were associated with anemia in the second trimester, and exposure to perfluorodecanoic acid (PFDA) and perfluorononanoic acid (PFNA) were associated with anemia in the third trimester. Notably, perfluoroundecanoic acid (PFUnA) had a nonlinear association with anemia in the third trimester. In multiple-pollutant analysis, a positive association of PFDoA with anemia in the first trimester and a negative association of PFBS with anemia in the second trimester were confirmed by BKMR. Exposure to PFASs mixture was not associated with anemia in all three trimesters. In WQS, there was a significantly negative association between the PFAS mixture and anemia in the second trimester. CONCLUSION Maternal exposure to PFASs is associated with gestational anemia in different trimesters.
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Affiliation(s)
- Qian Liao
- Department of Epidemiology and Health Statistics, School of Public Health, Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Peng Tang
- Department of Epidemiology and Health Statistics, School of Public Health, Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Dongxiang Pan
- Department of Epidemiology and Health Statistics, School of Public Health, Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Yanye Song
- The Third Affiliated Hospital of Guangxi Medical University, Nanning, 530031, Guangxi, China
| | - Lei Lei
- Department of Epidemiology and Health Statistics, School of Public Health, Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Jun Liang
- Department of Epidemiology and Health Statistics, School of Public Health, Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Bihu Liu
- Department of Epidemiology and Health Statistics, School of Public Health, Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Mengrui Lin
- Department of Sanitary Chemistry, School of Public Health, Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Huishen Huang
- Department of Epidemiology and Health Statistics, School of Public Health, Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Meile Mo
- Department of Epidemiology and Health Statistics, School of Public Health, Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Chengtuo Huang
- Department of Physical Examination, Guangxi Tiandong Hospital of Traditional Chinese Medicine, Tiandong, 531500, Guangxi, China
| | - Ming Wei
- Department of Obstetrics and Gynecology, Child Hygiene, Maternal and Child Health Care Hospital of Tianyang District, Baise City, 542899, Guangxi, China
| | - Shun Liu
- Department of Maternal, Child and Adolescent Health, School of Public Health, Guangxi Medical University, Nanning, 530021, Guangxi, China.
| | - Dongping Huang
- Department of Sanitary Chemistry, School of Public Health, Guangxi Medical University, Nanning, 530021, Guangxi, China.
| | - Xiaoqiang Qiu
- Department of Epidemiology and Health Statistics, School of Public Health, Guangxi Medical University, Nanning, 530021, Guangxi, China.
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13
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Najjarzadeha M, Mohammad-Alizadeh-Charandabi S, Abbasalizadeh S, Asghari-Jafarabadi M, Mirghafourvand M. Technology-free predictors of preterm birth in singleton women with threatened preterm labor: a prospective cohort study. BMC Pregnancy Childbirth 2022; 22:826. [PMID: 36348314 PMCID: PMC9641943 DOI: 10.1186/s12884-022-05155-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Accepted: 10/26/2022] [Indexed: 11/11/2022] Open
Abstract
Background Prediction of preterm birth is still a challenge due to its multiple etiologies. This prospective cohort study aimed to determine the technology-free predictors of preterm birth in singleton women with threatened preterm labor. Methods This prospective cohort study was performed on 371 singleton women with gestational age of 23+ 6 to 36+ 4 weeks hospitalized for threatened preterm labor. The data were collected using a questionnaire including demographic characteristics, medical and maternal history, as well as the Perceived Stress Scale (PSS), the Multidimensional Scale of Perceived Social Support (MSPSS), and the WHO’s questionnaire of Violence against Women (VAW). The participants were followed-up until childbirth. The predictors were determined using multivariate logistic regression. Results Preterm birth occurred in 51% of women. Seven variables were determined as predictors; rupture of membranes [adjusted odds ratio 11.7, 95% confidence interval 5.4 to 25.6], cervical dilation [AOR 4.1, 95% CI 2.0 to 7.0], gravidity ≥6 [AOR 27.4, 95%CI 2.8 to 264.3], psychological violence during pregnancy [AOR 2.0, 95% CI 1.1 to 3.2], medical problems in pregnancy onset [AOR 1.7, 95% CI 1.1 to 2.8], vaginal bleeding/spotting [AOR 2.1, 95% CI 1.2 to 4.0] and woman age ≤ 19 [AOR 2.2, 95% CI 1.1 to 4.5]. The proportion of variance explained by all these factors was 33.6%. Conclusions The technology-free factors seems to have moderate power in preterm birth prediction in singleton pregnant women hospitalized for threatened preterm labor. However, these results are discoveries without verification or validation and need to be confirmed by generalizable studies.
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Kwak DW, Kim S, Lee SY, Kim MH, Park HJ, Han YJ, Cha DH, Kim MY, Chung JH, Park B, Ryu HM. Maternal Anemia during the First Trimester and Its Association with Psychological Health. Nutrients 2022; 14:nu14173505. [PMID: 36079763 PMCID: PMC9460499 DOI: 10.3390/nu14173505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 08/20/2022] [Accepted: 08/22/2022] [Indexed: 12/05/2022] Open
Abstract
Anemia during pregnancy is known to be associated with an increased risk of antenatal and/or postnatal depression, as well as adverse pregnancy outcomes. However, there are few studies evaluating psychological health throughout the antepartum and postpartum periods in women with anemia in early pregnancy. This study analyzed data collected by the Korean Pregnancy Outcome Study, a multicenter prospective cohort study conducted in South Korea, to determine the impact of anemia during the first trimester on birth outcomes and maternal mental health during pregnancy and postpartum. Hemoglobin levels were measured during the first trimester, and psychological health was evaluated at 12, 24, and 36 gestational weeks and 4−6 weeks postpartum. Anxiety and depression were defined using the Hospital Anxiety and Depression Scale and the Edinburgh Postnatal Depression Scale, respectively. Among 4067 Korean participants, 119 (2.9%) were diagnosed with anemia during the first trimester. Incidences of anxiety and depression did not differ over the pregnancy period between those with and without anemia during the first trimester. However, postpartum anxiety and depression were significantly more common in participants with anemia than in those without (p < 0.05, both). Hence, obstetricians should pay attention to postpartum mental health in women with anemia during the first trimester.
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Affiliation(s)
- Dong-Wook Kwak
- Department of Obstetrics and Gynecology, Ajou University School of Medicine, Suwon 16499, Korea
| | - Seokyung Kim
- Department of Obstetrics and Gynecology, Ajou University School of Medicine, Suwon 16499, Korea
| | - Su-Young Lee
- Department of Psychiatry, Myongji Hospital, Hanyang University College of Medicine, Goyang 10475, Korea
| | - Min-Hyoung Kim
- Department of Obstetrics and Gynecology, MizMedi Hospital, Seoul 07639, Korea
| | - Hee-Jin Park
- Department of Obstetrics and Gynecology, CHA Gangnam Medical Center, CHA University, Seoul 06135, Korea
| | - You-Jung Han
- Department of Obstetrics and Gynecology, CHA Gangnam Medical Center, CHA University, Seoul 06135, Korea
| | - Dong-Hyun Cha
- Department of Obstetrics and Gynecology, CHA Gangnam Medical Center, CHA University, Seoul 06135, Korea
| | - Moon-Young Kim
- Department of Obstetrics and Gynecology, CHA Gangnam Medical Center, CHA University, Seoul 06135, Korea
| | - Jin-Hoon Chung
- Department of Obstetrics and Gynecology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea
| | - Bumhee Park
- Department of Biomedical Informatics, Ajou University School of Medicine, Suwon 16499, Korea
| | - Hyun-Mee Ryu
- Department of Obstetrics and Gynecology, CHA Bundang Medical Center, CHA University, Seongnam 13496, Korea
- Correspondence: ; Tel.: +82-31-780-5290; Fax: +82-31-780-5069
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15
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Safi Z, Venugopal N, Ali H, Makhlouf M, Farooq F, Boughorbel S. Analysis of risk factors progression of preterm delivery using electronic health records. BioData Min 2022; 15:17. [PMID: 35978434 PMCID: PMC9386949 DOI: 10.1186/s13040-022-00298-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 06/21/2022] [Indexed: 11/24/2022] Open
Abstract
Background Preterm deliveries have many negative health implications on both mother and child. Identifying the population level factors that increase the risk of preterm deliveries is an important step in the direction of mitigating the impact and reducing the frequency of occurrence of preterm deliveries. The purpose of this work is to identify preterm delivery risk factors and their progression throughout the pregnancy from a large collection of Electronic Health Records (EHR). Results The study cohort includes about 60,000 deliveries in the USA with the complete medical history from EHR for diagnoses, medications and procedures. We propose a temporal analysis of risk factors by estimating and comparing risk ratios and variable importance at different time points prior to the delivery event. We selected the following time points before delivery: 0, 12 and 24 week(s) of gestation. We did so by conducting a retrospective cohort study of patient history for a selected set of mothers who delivered preterm and a control group of mothers that delivered full-term. We analyzed the extracted data using logistic regression and random forests models. The results of our analyses showed that the highest risk ratio and variable importance corresponds to history of previous preterm delivery. Other risk factors were identified, some of which are consistent with those that are reported in the literature, others need further investigation. Conclusions The comparative analysis of the risk factors at different time points showed that risk factors in the early pregnancy related to patient history and chronic condition, while the risk factors in late pregnancy are specific to the current pregnancy. Our analysis unifies several previously reported studies on preterm risk factors. It also gives important insights on the changes of risk factors in the course of pregnancy. The code used for data analysis will be made available on github.
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Affiliation(s)
- Zeineb Safi
- Research Department, Sidra Medicine, Doha, Qatar
| | | | - Haytham Ali
- Division of Neonatalogy, Sidra Medicine, Doha, Qatar
| | - Michel Makhlouf
- Department of Maternal-Fetal Medicine, Sidra Medicine, Doha, Qatar
| | - Faisal Farooq
- Qatar Computing Research Institute, HBKU, Doha, Qatar
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Wu L, Sun R, Liu Y, Liu Z, Chen H, Shen S, Wei Y, Deng G. High hemoglobin level is a risk factor for maternal and fetal outcomes of pregnancy in Chinese women: A retrospective cohort study. BMC Pregnancy Childbirth 2022; 22:290. [PMID: 35387646 PMCID: PMC8988373 DOI: 10.1186/s12884-022-04636-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 03/22/2022] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND To examine the association of hemoglobin (Hb) levels during gestation with the risk of selected adverse pregnancy outcomes such as preterm birth (PTB), low-birth-weight infants (LBW) and small-for-gestational-age infants (SGA) in Chinese women. METHODS This retrospective cohort study was conducted in the Department of Gynecology and Obstetrics at the Union Shenzhen Hospital of the Huazhong University of Science and Technology, using routinely collected maternity and hospital data on pregnancies (2015-2018). Hb levels were measured during the second (16-18th weeks) and third (28-30th weeks) trimesters of pregnancy, and pregnancy outcomes were recorded in the hospital information system. Hb levels were categorized into four groups as follows: < 110 g/L, 110-119 g/L, 120-130 g/L, and > 130 g/L. The second group (Hb 110-119 g/L) was defined as the reference group. Statistical analysis was performed using multivariate logistic regression. RESULTS A total of 1911 singleton mothers were included. After multivariable adjustment, Hb levels > 130 g/L in the second trimester increased the risk of LBW (odds ratio [OR], 2.54; 95% confidence interval [CI], 1.12-5.76). In the third trimester of gestation, compared with women whose Hb levels between 110 and 119 g/L, women with Hb levels > 130 g/L had an increased risk of LBW (OR, 2.20; 95% CI, 1.07-4.51) and SGA (OR, 2.00; 95% CI, 1.05-3.80). When we compared the highest and lowest quartiles of changes in the Hb across the second and third trimesters, the adjusted ORs were 0.35 (95% CI: 0.18-0.68) for PTB and 0.47 (95% CI: 0.23-0.98) for LBW. CONCLUSION Maternal Hb > 130 g/L was associated with increased risk of adverse pregnancy outcomes. Reduction of the risks of PTB and SGA were observed with the appropriate increase of Hb level during the third trimester.
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Affiliation(s)
- Lanlan Wu
- Department of Clinical Nutrition, Union Shenzhen Hospital of Huazhong University of Science and Technology, No. 89 Taoyuan Road, Shenzhen, Guangdong, 518052, P.R. China
| | - Ruifang Sun
- Department of Clinical Nutrition, Union Shenzhen Hospital of Huazhong University of Science and Technology, No. 89 Taoyuan Road, Shenzhen, Guangdong, 518052, P.R. China
| | - Yao Liu
- Department of Clinical Nutrition, Union Shenzhen Hospital of Huazhong University of Science and Technology, No. 89 Taoyuan Road, Shenzhen, Guangdong, 518052, P.R. China
| | - Zengyou Liu
- Department of Obstetrics, Union Shenzhen Hospital of Huazhong University of Science and Technology, Shenzhen, China
| | - Hengying Chen
- Injury Prevention Research Center, Shantou University Medical College, Shantou, China
| | - Siwen Shen
- Department of Clinical Nutrition, Union Shenzhen Hospital of Huazhong University of Science and Technology, No. 89 Taoyuan Road, Shenzhen, Guangdong, 518052, P.R. China
| | - Yuanhuan Wei
- Department of Clinical Nutrition, Union Shenzhen Hospital of Huazhong University of Science and Technology, No. 89 Taoyuan Road, Shenzhen, Guangdong, 518052, P.R. China
| | - Guifang Deng
- Department of Clinical Nutrition, Union Shenzhen Hospital of Huazhong University of Science and Technology, No. 89 Taoyuan Road, Shenzhen, Guangdong, 518052, P.R. China
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Maternal Hemoglobin Concentrations and Birth Weight, Low Birth Weight (LBW), and Small for Gestational Age (SGA): Findings from a Prospective Study in Northwest China. Nutrients 2022; 14:nu14040858. [PMID: 35215507 PMCID: PMC8879779 DOI: 10.3390/nu14040858] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 02/12/2022] [Accepted: 02/16/2022] [Indexed: 12/18/2022] Open
Abstract
Birth weight and related outcomes have profound influences on life cycle health, but the effect of maternal hemoglobin concentration during pregnancy on birth weight is still unclear. This study aims to reveal the associations between maternal hemoglobin concentrations in different trimesters of pregnancy and neonatal birth weight, LBW, and SGA. This was a prospective study based on a cluster-randomized controlled trial conducted from July 2015 to December 2019 in rural areas of Northwest China. Information on maternal socio-demographic status, health-related factors, antenatal visits, and neonatal birth outcomes were collected. A total of 3748 women and their babies were included in the final analysis. A total of 65.1% and 46.3% of the participants had anemia or hemoglobin ≥ 130 g/L during pregnancy. In the third trimester, maternal hemoglobin concentration was associated with birth weight in an inverted U-shaped curve and with the risks of LBW and SGA in extended U-shaped curves. The relatively higher birth weight and lower risks for LBW and SGA were observed when hemoglobin concentration was 100–110 g/L. When maternal hemoglobin was <70 g/L or >130 g/L, the neonatal birth weight was more than 100 g lower than that when the maternal hemoglobin was 100 g/L. In conclusion, both low and high hemoglobin concentrations in the third trimester could be adverse to fetal weight growth and increase the risks of LBW and SGA, respectively. In addition to severe anemia, maternal hemoglobin >130 g/L in the third trimester should be paid great attention to in the practice of maternal and child health care.
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Liu X, An H, Li N, Li Z, Zhang Y, Zhang L, Li H, Liu J, Ye R. Preconception Hemoglobin Concentration and Risk of Low Birth Weight and Small-for-Gestational-Age: A Large Prospective Cohort Study in China. Nutrients 2022; 14:nu14020271. [PMID: 35057452 PMCID: PMC8780179 DOI: 10.3390/nu14020271] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 01/03/2022] [Accepted: 01/06/2022] [Indexed: 12/18/2022] Open
Abstract
Less is known about the impact of maternal preconception anemia on birth outcomes. We aimed to examine associations between preconception hemoglobin (Hb) concentrations with risk of low birth weight (LBW) and small-for-gestational-age (SGA). This study was from a large population-based prospective cohort in China and included 124,725 women with singleton live births delivered at gestational ages of 28–45 weeks who were registered before pregnancy. Maternal Hb concentrations were measured during registration, and other health-related information was recorded prospectively. Logistic regression was used to evaluate the associations between preconception Hb concentrations with risk of LBW and SGA, adjusting for potential confounders. The results showed women with preconception anemia accounted for 22.28%. The incidences of LBW/SGA were 2.37%/6.30% among anemic women, and 2.01%/5.48% among non-anemic women, respectively. Preconception mild anemia increased by 17% (95% confidence interval (CI): 1.06, 1.28) and 14% (95% CI: 1.07, 1.21) the risk for LBW and SGA, while moderate-to-severe anemia had no significant association with LBW and SGA. Compared with the 120–129 g/L group, a U-shaped association was observed between preconception Hb concentrations with LBW and SGA. In conclusion, not only maternal anemia but also elevated Hb concentrations before pregnancy contribute to an increased risk of LBW and SGA.
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Affiliation(s)
- Xiaojing Liu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing 100191, China; (X.L.); (H.A.); (Y.Z.); (L.Z.); (H.L.); (J.L.); (R.Y.)
- Institute of Reproductive and Child Health/Ministry of Health Key Laboratory of Reproductive Health, Peking University Health Science Center, Beijing 100191, China
| | - Hang An
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing 100191, China; (X.L.); (H.A.); (Y.Z.); (L.Z.); (H.L.); (J.L.); (R.Y.)
- Institute of Reproductive and Child Health/Ministry of Health Key Laboratory of Reproductive Health, Peking University Health Science Center, Beijing 100191, China
| | - Nan Li
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing 100191, China; (X.L.); (H.A.); (Y.Z.); (L.Z.); (H.L.); (J.L.); (R.Y.)
- Institute of Reproductive and Child Health/Ministry of Health Key Laboratory of Reproductive Health, Peking University Health Science Center, Beijing 100191, China
- Correspondence: (N.L.); (Z.L.)
| | - Zhiwen Li
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing 100191, China; (X.L.); (H.A.); (Y.Z.); (L.Z.); (H.L.); (J.L.); (R.Y.)
- Institute of Reproductive and Child Health/Ministry of Health Key Laboratory of Reproductive Health, Peking University Health Science Center, Beijing 100191, China
- Correspondence: (N.L.); (Z.L.)
| | - Yali Zhang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing 100191, China; (X.L.); (H.A.); (Y.Z.); (L.Z.); (H.L.); (J.L.); (R.Y.)
- Institute of Reproductive and Child Health/Ministry of Health Key Laboratory of Reproductive Health, Peking University Health Science Center, Beijing 100191, China
| | - Le Zhang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing 100191, China; (X.L.); (H.A.); (Y.Z.); (L.Z.); (H.L.); (J.L.); (R.Y.)
- Institute of Reproductive and Child Health/Ministry of Health Key Laboratory of Reproductive Health, Peking University Health Science Center, Beijing 100191, China
| | - Hongtian Li
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing 100191, China; (X.L.); (H.A.); (Y.Z.); (L.Z.); (H.L.); (J.L.); (R.Y.)
- Institute of Reproductive and Child Health/Ministry of Health Key Laboratory of Reproductive Health, Peking University Health Science Center, Beijing 100191, China
| | - Jianmeng Liu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing 100191, China; (X.L.); (H.A.); (Y.Z.); (L.Z.); (H.L.); (J.L.); (R.Y.)
- Institute of Reproductive and Child Health/Ministry of Health Key Laboratory of Reproductive Health, Peking University Health Science Center, Beijing 100191, China
| | - Rongwei Ye
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing 100191, China; (X.L.); (H.A.); (Y.Z.); (L.Z.); (H.L.); (J.L.); (R.Y.)
- Institute of Reproductive and Child Health/Ministry of Health Key Laboratory of Reproductive Health, Peking University Health Science Center, Beijing 100191, China
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19
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Meitei AJ, Saini A, Mohapatra BB, Singh KJ. Predicting child anaemia in the North-Eastern states of India: a machine learning approach. INTERNATIONAL JOURNAL OF SYSTEM ASSURANCE ENGINEERING AND MANAGEMENT 2022; 13:2949-2962. [PMCID: PMC9441193 DOI: 10.1007/s13198-022-01765-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 07/14/2022] [Accepted: 08/08/2022] [Indexed: 01/07/2024]
Abstract
Child anaemia is a serious global health issue and India is one of the highest contributors among the developing nations. Researchers identify many harmful effects of anaemia, which include psychomotor retardation, which in turn decreases the learning ability and causes low intelligence among pre-school children. The effects also include behavioural delays, low immunity, and susceptibility to frequent infections, increased mortality, and disability. The present study aims to predict anaemia among children in North-East India by applying Machine Learning (ML) algorithms to latest available National Family Health Survey (NFHS)-4 data. Out of the total 29,312 eligible children (6–59 months) in North-East India, a total of 21,000 children with demographic variables without any missing observations, wherein 10,460 are anaemic, is considered for this study. Machine learning (ML) algorithms have been applied through 3 different types of penalized regression methods—ridge, least absolute shrinkage and selection operator, and elastic net for predicting anaemia. A systematic assessment of algorithms is performed in terms of accuracy, sensitivity, specificity, F1-Score, and Cohen’s \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$k$$\end{document} k -Statistics. Having achieved the receiver operating characteristic value of over 70% in training and accuracy of above 64% while testing, it can be safely asserted that factors like mother’s anaemic status, age of the child, social status, mother’s age, mother’s education, religion are important in identifying the child as anaemic.
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Affiliation(s)
- A. Jiran Meitei
- Department of Mathematics, Maharaja Agrasen College, University of Delhi, New Delhi, India
| | - Akanksha Saini
- Department of Operational Research, University of Delhi, New Delhi, Delhi 110007 India
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20
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Li Z, Chen Y, Zeng X, Stephen S, Li Y, Li H, Dong L, He T, Zhang S, Yang P, Jiang W, Fan H. Clinical and hemodynamic insights into the use of internal iliac artery balloon occlusion as a prophylactic technique for treating postpartum hemorrhage. J Biomech 2021; 129:110827. [PMID: 34736088 DOI: 10.1016/j.jbiomech.2021.110827] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 09/02/2021] [Accepted: 10/16/2021] [Indexed: 11/19/2022]
Abstract
Recently, the effectiveness of internal iliac artery balloon occlusion (IIABO) for treating postpartum hemorrhage caused by pernicious placenta previa (PPP) has been questioned. We conducted a retrospective analysis and hemodynamic simulation to assess the IIABO's effectiveness. The retrospective analysis involved 480 patients with PPP, among which 288 underwent IIABO treatment and the remaining 192 were used as controls. Blood loss and preoperative indicators were recorded, and multiple regression analysis was applied to test the effect of preoperative indicators on blood loss. Hemorrhage mechanisms were simulated using a numerical model. Results suggested that no significant difference in blood loss (1836 ± 1440 ml vs. 1784 ± 1647 ml, p = 0.22) was observed between the two groups. In addition, preoperative indicators, including age, weight, gestational age, gravidity, parity, blood type, anemia, or diabetes, were not associated with blood loss. In the simulation, after the intra-iliac artery was blocked, blood loss was caused by a reversed flow in the intrapelvic arteries, uterine veins, and uterine venules. The ratio of the time-averaged hemorrhage velocity (TAHV) in the balloon group to that in the control group was lower than that obtained in a clinical study (13.0% vs. 88.9%); in the presence of collateral circulation, blood loss occurred from collateral circulation and uterine venules after IIABO intervention, and the TAHV was 60%-90% that of the control group, which was closer to the clinical results (88.9%). These results suggest that IIABO cannot effectively treat postpartum hemorrhage because of the collateral circulation and reversed flow in the uterine venules.
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Affiliation(s)
- Zhongyou Li
- Department of Applied Mechanics, Sichuan University, Chengdu 610065, China
| | - Yu Chen
- Department of Applied Mechanics, Sichuan University, Chengdu 610065, China; Medical Big Data Center, Sichuan University, Chengdu 610041, China.
| | - Xiaoxi Zeng
- Medical Big Data Center, Sichuan University, Chengdu 610041, China
| | - Salerno Stephen
- Department of Biostatistics, University of Michigan, Ann Arbor, MI, USA
| | - Yi Li
- Department of Biostatistics, University of Michigan, Ann Arbor, MI, USA
| | - Huafeng Li
- West China Second Hospital, Sichuan University, Chengdu 610041, China.
| | - Lihua Dong
- Department of Anatomy, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu 610041, China
| | - Teng He
- Department of Applied Mechanics, Sichuan University, Chengdu 610065, China
| | - Shihong Zhang
- West China Second Hospital, Sichuan University, Chengdu 610041, China
| | - Pei Yang
- West China Second Hospital, Sichuan University, Chengdu 610041, China
| | - Wentao Jiang
- Department of Applied Mechanics, Sichuan University, Chengdu 610065, China
| | - Haidong Fan
- Department of Applied Mechanics, Sichuan University, Chengdu 610065, China
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21
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Rattsev I, Flaks-Manov N, Jelin AC, Bai J, Taylor CO. Recurrent preterm birth risk assessment for two delivery subtypes: A multivariable analysis. J Am Med Inform Assoc 2021; 29:306-320. [PMID: 34559221 DOI: 10.1093/jamia/ocab184] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 07/21/2021] [Accepted: 08/13/2021] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVE The study sought to develop and apply a framework that uses a clinical phenotyping tool to assess risk for recurrent preterm birth. MATERIALS AND METHODS We extended an existing clinical phenotyping tool and applied a 4-step framework for our retrospective cohort study. The study was based on data collected in the Genomic and Proteomic Network for Preterm Birth Research Longitudinal Cohort Study (GPN-PBR LS). A total of 52 sociodemographic, clinical and obstetric history-related risk factors were selected for the analysis. Spontaneous and indicated delivery subtypes were analyzed both individually and in combination. Chi-square analysis and Kaplan-Meier estimate were used for univariate analysis. A Cox proportional hazards model was used for multivariable analysis. RESULTS : A total of 428 women with a history of spontaneous preterm birth qualified for our analysis. The predictors of preterm delivery used in multivariable model were maternal age, maternal race, household income, marital status, previous caesarean section, number of previous deliveries, number of previous abortions, previous birth weight, cervical insufficiency, decidual hemorrhage, and placental dysfunction. The models stratified by delivery subtype performed better than the naïve model (concordance 0.76 for the spontaneous model, 0.87 for the indicated model, and 0.72 for the naïve model). DISCUSSION The proposed 4-step framework is effective to analyze risk factors for recurrent preterm birth in a retrospective cohort and possesses practical features for future analyses with other data sources (eg, electronic health record data). CONCLUSIONS We developed an analytical framework that utilizes a clinical phenotyping tool and performed a survival analysis to analyze risk for recurrent preterm birth.
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Affiliation(s)
- Ilia Rattsev
- Institute for Computational Medicine, Whiting School of Engineering, Johns Hopkins University, Baltimore, Maryland, USA.,Department of Biomedical Engineering, Johns Hopkins University, Baltimore, Maryland, USA
| | - Natalie Flaks-Manov
- Division of General Internal Medicine, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Angie C Jelin
- Department of Gynecology and Obstetrics, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.,Department of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Jiawei Bai
- Department of Biostatistics, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Casey Overby Taylor
- Institute for Computational Medicine, Whiting School of Engineering, Johns Hopkins University, Baltimore, Maryland, USA.,Department of Biomedical Engineering, Johns Hopkins University, Baltimore, Maryland, USA.,Division of General Internal Medicine, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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22
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Sendeku FW, Beyene FY, Tesfu AA, Bante SA, Azeze GG. Preterm birth and its associated factors in Ethiopia: a systematic review and meta-analysis. Afr Health Sci 2021; 21:1321-1333. [PMID: 35222597 PMCID: PMC8843273 DOI: 10.4314/ahs.v21i3.43] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Background Preterm birth is a public health concern globally. In low- and middle-income countries, like Ethiopia, preterm birth is under reported and underestimated. Therefore, this systematic review and meta-analysis assessed the pooled prevalence and associated risk factors for preterm birth in Ethiopia. Methods In this review the databases used were PubMed, Google scholar, EMBASE, HINARI and African journal online. Publication bias was checked using a funnel plot and Eggers test. Results A total of 30 studies were included in this systematic review and meta-analysis. The overall pooled prevalence of preterm birth in Ethiopia was 11.4% (95% CI; 9.04, 13.76). On pooled analysis, preterm birth was associated with pregnancy-induced hypertension being HIV-positive, premature rupture of membrane, rural residence, the mother having a history of abortion, multiple pregnancies, and anemia during pregnancy. Conclusion The national prevalence of preterm birth in Ethiopia was low. Early identifying those pregnant women who are at risk of the above determinants and proving quality healthcare and counsel them how to prevent preterm births, which decrease the rate of preterm birth and its consequences. So, both governmental and non-governmental health sectors work on the minimization of these risk factors.
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Affiliation(s)
- Fikadu Waltengus Sendeku
- Department of Midwifery, College of Medicine and Health Sciences, Bahir Dar University, Bahir Dar, Ethiopia
| | - Fentahun Yenealem Beyene
- Department of Midwifery, College of Medicine and Health Sciences, Bahir Dar University, Bahir Dar, Ethiopia
| | - Azimeraw Arega Tesfu
- Department of Midwifery, College of Medicine and Health Sciences, Bahir Dar University, Bahir Dar, Ethiopia
| | - Simachew Animen Bante
- Department of Midwifery, College of Medicine and Health Sciences, Bahir Dar University, Bahir Dar, Ethiopia
| | - Getnet Gedefaw Azeze
- Department of Midwifery, College of Health Sciences, Woldia University, Woldia, Ethiopia
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23
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Sun CF, Liu H, Hao YH, Hu HT, Zhou ZY, Zou KX, Liu XM, Sheng JZ, Ding GL, Huang HF. Association between gestational anemia in different trimesters and neonatal outcomes: a retrospective longitudinal cohort study. World J Pediatr 2021; 17:197-204. [PMID: 33625695 DOI: 10.1007/s12519-021-00411-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Accepted: 01/02/2021] [Indexed: 12/11/2022]
Abstract
BACKGROUND Previous studies investigated the association between gestational anemia and neonatal outcomes. However, few studies explored whether the effects of gestational anemia could be eliminated by subsequent correction of anemia in the later stages of pregnancy. This study aimed to investigate the relationship between anemia in different trimesters and neonatal outcomes. METHODS The study was conducted in Shanghai, China, with a sample of 46,578 pregnant women who delivered between January 1, 2016 and July 1, 2019. A multivariable logistic regression model was adopted to analyse the associations between maternal anemia and neonatal outcomes. RESULTS The incidence of gestational anemia was 30.2%, including 4.4% in the first trimester, 9.6% in the second trimester, and 16.2% in the third trimester. Only 24.5% (507/2066) of anemia that occurred in the first trimester and 29.6% (1320/4457) that occurred in the second trimester could be corrected in the later stages of pregnancy. Anemia occurring in the first trimester was associated with small for gestational age [odds ratio (OR) 1.46; 95% confidence interval (CI) 1.20-1.78] and with fetal distress (OR 1.23; 95% CI 1.08-1.40). Anemia corrected in the first trimester also was associated with a higher risk of small for gestational age. CONCLUSIONS Gestational anemia is a public health problem in China impacting neonatal health. Anemia in pregnancy could be corrected in only about a quarter of the women. Anemia in the first trimester, whether corrected or not, still led to lower birth weight; therefore, the prevention of anemia prior to pregnancy is important.
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Affiliation(s)
- Chang-Fa Sun
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, 910 Hengshan Road, Shanghai, 200030, China.,Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China
| | - Han Liu
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, 910 Hengshan Road, Shanghai, 200030, China.,Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China
| | - Yan-Hui Hao
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, 910 Hengshan Road, Shanghai, 200030, China.,Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China
| | - Hong-Tao Hu
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, 910 Hengshan Road, Shanghai, 200030, China.,Department of Gynecology and Obstetrics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Zhi-Yang Zhou
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, 910 Hengshan Road, Shanghai, 200030, China.,Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China
| | - Ke-Xin Zou
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, 910 Hengshan Road, Shanghai, 200030, China.,Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China
| | - Xin-Mei Liu
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, 910 Hengshan Road, Shanghai, 200030, China.,Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China
| | - Jian-Zhong Sheng
- Department of Pathology and Pathophysiology, School of Medicine, Zhejiang University, Hangzhou, China
| | - Guo-Lian Ding
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, 910 Hengshan Road, Shanghai, 200030, China.,Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China
| | - He-Feng Huang
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, 910 Hengshan Road, Shanghai, 200030, China. .,Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China.
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24
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Jing S, Chen C, Gan Y, Vogel J, Zhang J. Incidence and trend of preterm birth in China, 1990-2016: a systematic review and meta-analysis. BMJ Open 2020; 10:e039303. [PMID: 33310797 PMCID: PMC7735132 DOI: 10.1136/bmjopen-2020-039303] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 10/19/2020] [Accepted: 11/24/2020] [Indexed: 01/02/2023] Open
Abstract
OBJECTIVES To update the WHO estimate of preterm birth rate in China in 1990-2016 and to further explore variations by geographic regions and years of occurrence. DESIGN Systematic review and meta-analysis. DATA SOURCES Pubmed, Embase, Cochrane Library and Sinomed databases were searched from 1990 to 2018. ELIGIBILITY CRITERIA Studies were included if they provided preterm birth data with at least 500 total births. Reviews, case-control studies, intervention studies and studies with insufficient information or published before 1990 were excluded. We estimated pooled incidence of preterm birth by a random effects model, and preterm birth rate in different year, region and by livebirths or all births in subgroup analyses. RESULTS Our search identified 3945 records. After the removal of duplicates and screening of titles and abstracts, we reviewed 254 studies in full text and excluded 182, leaving 72 new studies. They were combined with the 82 studies included in the WHO report (154 studies, 187 data sets in total for the meta-analysis), including 24 039 084 births from 1990 to 2016. The pooled incidence of preterm birth in China was 6.09% (95% CI 5.86% to 6.31%) but has been steadily increasing from 5.36% (95% CI 4.89% to 5.84%) in 1990-1994 to 7.04% (95% CI 6.09% to 7.99%) in 2015-2016. The annual rate of increase was about 1.05% (95% CI 0.85% to 1.21%). Northwest China appeared to have the highest preterm birth rate (7.3%, 95% CI 4.92% to 9.68% from 1990 to 2016). CONCLUSIONS The incidence of preterm birth in China has been rising gradually in the past three decades. It was 7% in 2016. Preterm birth rate varied by region with the West having the highest occurrence.
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Affiliation(s)
- Shiwen Jing
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chang Chen
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yuexin Gan
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Joshua Vogel
- Maternal, Child and Adolescent Health Program, Burnet Institute, Melbourne, Victoria, Australia
| | - Jun Zhang
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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25
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Jehan F, Sazawal S, Baqui AH, Nisar MI, Dhingra U, Khanam R, Ilyas M, Dutta A, Mitra DK, Mehmood U, Deb S, Mahmud A, Hotwani A, Ali SM, Rahman S, Nizar A, Ame SM, Moin MI, Muhammad S, Chauhan A, Begum N, Khan W, Das S, Ahmed S, Hasan T, Khalid J, Rizvi SJR, Juma MH, Chowdhury NH, Kabir F, Aftab F, Quaiyum A, Manu A, Yoshida S, Bahl R, Rahman A, Pervin J, Winston J, Musonda P, Stringer JSA, Litch JA, Ghaemi MS, Moufarrej MN, Contrepois K, Chen S, Stelzer IA, Stanley N, Chang AL, Hammad GB, Wong RJ, Liu C, Quaintance CC, Culos A, Espinosa C, Xenochristou M, Becker M, Fallahzadeh R, Ganio E, Tsai AS, Gaudilliere D, Tsai ES, Han X, Ando K, Tingle M, Marić I, Wise PH, Winn VD, Druzin ML, Gibbs RS, Darmstadt GL, Murray JC, Shaw GM, Stevenson DK, Snyder MP, Quake SR, Angst MS, Gaudilliere B, Aghaeepour N. Multiomics Characterization of Preterm Birth in Low- and Middle-Income Countries. JAMA Netw Open 2020; 3:e2029655. [PMID: 33337494 PMCID: PMC7749442 DOI: 10.1001/jamanetworkopen.2020.29655] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
IMPORTANCE Worldwide, preterm birth (PTB) is the single largest cause of deaths in the perinatal and neonatal period and is associated with increased morbidity in young children. The cause of PTB is multifactorial, and the development of generalizable biological models may enable early detection and guide therapeutic studies. OBJECTIVE To investigate the ability of transcriptomics and proteomics profiling of plasma and metabolomics analysis of urine to identify early biological measurements associated with PTB. DESIGN, SETTING, AND PARTICIPANTS This diagnostic/prognostic study analyzed plasma and urine samples collected from May 2014 to June 2017 from pregnant women in 5 biorepository cohorts in low- and middle-income countries (LMICs; ie, Matlab, Bangladesh; Lusaka, Zambia; Sylhet, Bangladesh; Karachi, Pakistan; and Pemba, Tanzania). These cohorts were established to study maternal and fetal outcomes and were supported by the Alliance for Maternal and Newborn Health Improvement and the Global Alliance to Prevent Prematurity and Stillbirth biorepositories. Data were analyzed from December 2018 to July 2019. EXPOSURES Blood and urine specimens that were collected early during pregnancy (median sampling time of 13.6 weeks of gestation, according to ultrasonography) were processed, stored, and shipped to the laboratories under uniform protocols. Plasma samples were assayed for targeted measurement of proteins and untargeted cell-free ribonucleic acid profiling; urine samples were assayed for metabolites. MAIN OUTCOMES AND MEASURES The PTB phenotype was defined as the delivery of a live infant before completing 37 weeks of gestation. RESULTS Of the 81 pregnant women included in this study, 39 had PTBs (48.1%) and 42 had term pregnancies (51.9%) (mean [SD] age of 24.8 [5.3] years). Univariate analysis demonstrated functional biological differences across the 5 cohorts. A cohort-adjusted machine learning algorithm was applied to each biological data set, and then a higher-level machine learning modeling combined the results into a final integrative model. The integrated model was more accurate, with an area under the receiver operating characteristic curve (AUROC) of 0.83 (95% CI, 0.72-0.91) compared with the models derived for each independent biological modality (transcriptomics AUROC, 0.73 [95% CI, 0.61-0.83]; metabolomics AUROC, 0.59 [95% CI, 0.47-0.72]; and proteomics AUROC, 0.75 [95% CI, 0.64-0.85]). Primary features associated with PTB included an inflammatory module as well as a metabolomic module measured in urine associated with the glutamine and glutamate metabolism and valine, leucine, and isoleucine biosynthesis pathways. CONCLUSIONS AND RELEVANCE This study found that, in LMICs and high PTB settings, major biological adaptations during term pregnancy follow a generalizable model and the predictive accuracy for PTB was augmented by combining various omics data sets, suggesting that PTB is a condition that manifests within multiple biological systems. These data sets, with machine learning partnerships, may be a key step in developing valuable predictive tests and intervention candidates for preventing PTB.
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Affiliation(s)
- Fyezah Jehan
- Department of Pediatrics and Child Health, Aga Khan University, Karachi, Pakistan
| | - Sunil Sazawal
- Centre for Public Health Kinetics, New Delhi, Delhi, India
| | - Abdullah H. Baqui
- International Center for Maternal and Newborn Health, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Muhammad Imran Nisar
- Department of Pediatrics and Child Health, Aga Khan University, Karachi, Pakistan
| | - Usha Dhingra
- Centre for Public Health Kinetics, New Delhi, Delhi, India
| | - Rasheda Khanam
- International Center for Maternal and Newborn Health, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Muhammad Ilyas
- Department of Pediatrics and Child Health, Aga Khan University, Karachi, Pakistan
| | - Arup Dutta
- Centre for Public Health Kinetics, New Delhi, Delhi, India
| | - Dipak K. Mitra
- International Center for Maternal and Newborn Health, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Usma Mehmood
- Department of Pediatrics and Child Health, Aga Khan University, Karachi, Pakistan
| | - Saikat Deb
- Centre for Public Health Kinetics, New Delhi, Delhi, India
- Public Health Laboratory-Ivo de Carneri, Pemba Island, Zanzibar
| | - Arif Mahmud
- International Center for Maternal and Newborn Health, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Aneeta Hotwani
- Department of Pediatrics and Child Health, Aga Khan University, Karachi, Pakistan
| | | | - Sayedur Rahman
- International Center for Maternal and Newborn Health, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Ambreen Nizar
- Department of Pediatrics and Child Health, Aga Khan University, Karachi, Pakistan
| | | | - Mamun Ibne Moin
- International Center for Maternal and Newborn Health, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Sajid Muhammad
- Department of Pediatrics and Child Health, Aga Khan University, Karachi, Pakistan
| | | | - Nazma Begum
- International Center for Maternal and Newborn Health, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Waqasuddin Khan
- Department of Pediatrics and Child Health, Aga Khan University, Karachi, Pakistan
| | - Sayan Das
- Centre for Public Health Kinetics, New Delhi, Delhi, India
| | - Salahuddin Ahmed
- International Center for Maternal and Newborn Health, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Tarik Hasan
- International Center for Maternal and Newborn Health, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Javairia Khalid
- Department of Pediatrics and Child Health, Aga Khan University, Karachi, Pakistan
| | - Syed Jafar Raza Rizvi
- International Center for Maternal and Newborn Health, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | | | - Nabidul Haque Chowdhury
- International Center for Maternal and Newborn Health, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Furqan Kabir
- Department of Pediatrics and Child Health, Aga Khan University, Karachi, Pakistan
| | - Fahad Aftab
- Centre for Public Health Kinetics, New Delhi, Delhi, India
| | - Abdul Quaiyum
- International Center for Maternal and Newborn Health, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Alexander Manu
- Maternal, Newborn, Child and Adolescent Health Research, World Health Organization, Geneva, Switzerland
| | - Sachiyo Yoshida
- Maternal, Newborn, Child and Adolescent Health Research, World Health Organization, Geneva, Switzerland
| | - Rajiv Bahl
- Maternal, Newborn, Child and Adolescent Health Research, World Health Organization, Geneva, Switzerland
| | - Anisur Rahman
- Matlab Health Research Centre, International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | - Jesmin Pervin
- Maternal and Child Health Division, International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | - Jennifer Winston
- Department of Obstetrics and Gynecology, University of North Carolina at Chapel Hill, Chapel Hill
| | - Patrick Musonda
- School of Public Health, University of Zambia, Lusaka, Zambia
| | - Jeffrey S. A. Stringer
- Department of Obstetrics and Gynecology, University of North Carolina at Chapel Hill, Chapel Hill
| | - James A. Litch
- Global Alliance to Prevent Prematurity and Stillbirth, Seattle, Washington
| | - Mohammad Sajjad Ghaemi
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford, California
- Digital Technologies Research Centre, National Research Council Canada, Toronto, Ontario, Canada
| | - Mira N. Moufarrej
- Department of Bioengineering, Stanford University, Stanford, California
| | - Kévin Contrepois
- Department of Genetics, Stanford University School of Medicine, Stanford, California
| | - Songjie Chen
- Department of Genetics, Stanford University School of Medicine, Stanford, California
| | - Ina A. Stelzer
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford, California
| | - Natalie Stanley
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford, California
| | - Alan L. Chang
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford, California
| | - Ghaith Bany Hammad
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford, California
| | - Ronald J. Wong
- Division of Neonatal and Developmental Medicine, Department of Pediatrics, Stanford University School of Medicine, Stanford, California
| | - Candace Liu
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford, California
| | | | - Anthony Culos
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford, California
| | - Camilo Espinosa
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford, California
| | - Maria Xenochristou
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford, California
| | - Martin Becker
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford, California
| | - Ramin Fallahzadeh
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford, California
| | - Edward Ganio
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford, California
| | - Amy S. Tsai
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford, California
| | - Dyani Gaudilliere
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford, California
| | - Eileen S. Tsai
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford, California
| | - Xiaoyuan Han
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford, California
| | - Kazuo Ando
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford, California
| | - Martha Tingle
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford, California
| | - Ivana Marić
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford, California
- Division of Neonatal and Developmental Medicine, Department of Pediatrics, Stanford University School of Medicine, Stanford, California
| | - Paul H. Wise
- Division of Neonatal and Developmental Medicine, Department of Pediatrics, Stanford University School of Medicine, Stanford, California
| | - Virginia D. Winn
- Department of Obstetrics and Gynecology, Stanford University School of Medicine, Stanford, California
| | - Maurice L. Druzin
- Department of Obstetrics and Gynecology, Stanford University School of Medicine, Stanford, California
| | - Ronald S. Gibbs
- Department of Obstetrics and Gynecology, Stanford University School of Medicine, Stanford, California
| | - Gary L. Darmstadt
- Division of Neonatal and Developmental Medicine, Department of Pediatrics, Stanford University School of Medicine, Stanford, California
| | | | - Gary M. Shaw
- Division of Neonatal and Developmental Medicine, Department of Pediatrics, Stanford University School of Medicine, Stanford, California
| | - David K. Stevenson
- Division of Neonatal and Developmental Medicine, Department of Pediatrics, Stanford University School of Medicine, Stanford, California
| | - Michael P. Snyder
- Department of Genetics, Stanford University School of Medicine, Stanford, California
| | - Stephen R. Quake
- Department of Bioengineering, Stanford University, Stanford, California
| | - Martin S. Angst
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford, California
| | - Brice Gaudilliere
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford, California
- Division of Neonatal and Developmental Medicine, Department of Pediatrics, Stanford University School of Medicine, Stanford, California
| | - Nima Aghaeepour
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford, California
- Division of Neonatal and Developmental Medicine, Department of Pediatrics, Stanford University School of Medicine, Stanford, California
- Department of Biomedical Informatics, Stanford University School of Medicine, Stanford, California
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Rahman MA, Khan MN, Rahman MM. Maternal anaemia and risk of adverse obstetric and neonatal outcomes in South Asian countries: A systematic review and meta-analysis. PUBLIC HEALTH IN PRACTICE 2020; 1:100021. [PMID: 36101702 PMCID: PMC9461600 DOI: 10.1016/j.puhip.2020.100021] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 06/11/2020] [Accepted: 06/12/2020] [Indexed: 01/20/2023] Open
Abstract
Background The occurrence of maternal anaemia is common in South Asian countries which increase the risk of adverse maternal obstetric and birth outcomes. This may adversely affect the achievement of the Sustainable Development Goals’ (SDG) targets of reducing maternal and under-five deaths by 2030. Objectives To summarize the evidence on the association of maternal anaemia with adverse birth and maternal obstetric outcomes. Methods We adopted the PRISMA consensus statement. PubMed, CINAHL and Web of Science databases were searched on February 20, 2020. A total of 38 studies was included, of which 25 articles were included in the quantitative synthesis and meta-analysis. Results Maternal anaemia was associated with a significantly higher risk of low birth weight (OR, 1.90; 95% CI, 1.06-2.60, p < 0.05), preterm birth (OR, 1.96; 95% CI, 1.20-2.41, p < 0.05) and perinatal mortality (OR, 2.90; 1.97-3.78, p < 0.05). Non-significant associations were seen with neonatal mortality (OR, 1.80; 95% CI, 0.90-27.77, p = 0.7), miscarriage (OR, 1.68; 95% CI, 0.48-3.20, p = 0.08), preeclampsia (OR, 2.66; 95% CI, 0.61-11.52, p = 0.6) and caesarean delivery (OR, 1.18; 95% CI, 0.36-2.80, p = 0.07). Conclusion Maternal anaemia increases the risk of low birth weight, preterm birth and perinatal mortality. Improving maternal nutritional status and iron supplementation during pregnancy are important for reducing these adverse outcomes.
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Affiliation(s)
- Md Aminur Rahman
- Department of Population Science and Human Resource Development, University of Rajshahi, Rajshahi, Bangladesh
| | - Md Nuruzzaman Khan
- Department of Population Sciences, Jatiya Kabi Kazi Nazrul Islam University, Mymensingh, Bangladesh
- Corresponding author.
| | - Md Mostafizur Rahman
- Department of Population Science and Human Resource Development, University of Rajshahi, Rajshahi, Bangladesh
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Yadeta TA, Egata G, Seyoum B, Marami D. Khat chewing in pregnant women associated with prelabor rupture of membranes, evidence from eastern Ethiopia. Pan Afr Med J 2020; 36:1. [PMID: 32550964 PMCID: PMC7282619 DOI: 10.11604/pamj.2020.36.1.22528] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 04/04/2020] [Indexed: 12/31/2022] Open
Abstract
Introduction Prelabor rupture of membranes (PROM) is a major factor that affects pregnancy outcome. Results from previous studies have suggested that there is an association between pregnant women, khat chewing and preterm birth, but evidence of association with PROM is sparse. This study therefore aims at identifying association between khat chewing in pregnancy and premature rupture of membranes in eastern Ethiopia. Methods A health facility-based cross-sectional study was conducted among 1688 pregnant women who came for delivery service in Harar town, Eastern Ethiopia between June to October in 2016. Data were collected using a pre-tested structured questionnaire and checklist to extract data from the medical record. The association between khat and PROM was examined using logistic regression analysis. A statistical significance was declared at p-value < 0.05. Results Of the 1688 pregnant women who participated in the study, 397 had prelabor rupture of the membranes, representing a proportion of 23.5% [(95% CI: (21.5, 25.6%)]. Of these 397 prelabor rupture of the membranes 198 (31.53%) were from Khat chewing mothers and, 199(18.77%) were from non-khat chewing mothers. After controlling for potential confounders, the multivariable logistic regression analysis revealed the odds of PROM was 1.51 times higher among khat chewed pregnant women [AOR = 1.51; 95% CI; (1.11, 2.07)] were had no khat chewing. Conclusion This study found a significant association between khat chewing in pregnancy and PROM. Efforts to reduce PROM need to consider prevention of khat chewing in pregnancy. A specific strategy need to protect pregnant women from khat chewing.
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Affiliation(s)
- Tesfaye Assebe Yadeta
- School of Nursing and Midwifery, College of Health and Medical Sciences, Haramaya University, Harar, Ethiopia
| | - Gudina Egata
- School of Public Health, College of Health and Medical Sciences, Addis Ababa University, Addis Ababa, Ethiopia
| | - Berhanu Seyoum
- Armauer Hansen Research Institute, Addis Ababa, Ethiopia
| | - Dadi Marami
- Department of Medical Laboratory Sciences, College of Health and Medical Sciences, Haramaya University, Harar, Ethiopia
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Preconception Hb concentration with risk of spontaneous abortion: a population-based cohort study in over 3·9 million women across rural China. Public Health Nutr 2020; 23:2963-2972. [PMID: 32131921 DOI: 10.1017/s1368980019003811] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
OBJECTIVE Evidence on the relationship between maternal Hb concentration and spontaneous abortion (SA) risk is limited and conflicting. The purpose of the study was to evaluate whether maternal preconception anaemia or high Hb concentration is associated with risk of SA. DESIGN A population-based cohort study established between 2013 and 2017. SETTINGS Local maternal and child care service centres in each county. PARTICIPANTS In total, 3 971 428 women aged 20-49 years, who participated in National Free Pre-Pregnancy Checkups Project from 2013 to 2016 and successfully got pregnant before 2017 in rural China. RESULTS A total of 101 700 (2·56 %) women were recorded having SA, with highest SA rate in women with severe anaemia (4·58 %). Compared with women with Hb of 110-149 g/l, the multivariable-adjusted OR for SA was 1·52 (95 % CI: 1·25, 1·86) for women with Hb < 70 g/l, 0·92 (0·84, 1·01) for 70-99 g/l, 0·80 (0·77, 0·83) for 100-109 g/l, 1·11 (1·08, 1·15) for 150-159 g/l, 1·12 (1·04, 1·20) for 160-169 g/l and 1·02 (0·93, 1·12) for ≥ 170 g/l, respectively. An approximate U-shaped curve for the risk of SA with Hb concentrations was observed when Hb concentrations less than 145 g/l, above which the association plateaued (Pnon-linear < 0·001). CONCLUSIONS Severe anaemia and high Hb concentration before pregnancy were associated with an increased risk of SA. Women with mild anaemia prior to pregnancy had lower risk of SA. Underlying mechanisms need to be further studied.
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Determinants of Preterm Birth among Women Who Gave Birth in Amhara Region Referral Hospitals, Northern Ethiopia, 2018: Institutional Based Case Control Study. Int J Pediatr 2020; 2020:1854073. [PMID: 32099548 PMCID: PMC6975220 DOI: 10.1155/2020/1854073] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Revised: 08/29/2019] [Accepted: 10/26/2019] [Indexed: 12/14/2022] Open
Abstract
Background Preterm birth refers to a birth of a baby before 37 completed weeks of gestation and after fetal viability. It is now the leading cause of new born deaths. Although identifying its common risk factors is mandatory to decrease preterm birth and thereby neonatal deaths, there was a dearth of studies in the study area. Objective The aim of this study was to identify determinants of preterm birth among women who gave birth in Amhara region referral hospitals, Northwest Ethiopia, 2018. Method An institutional based case-control study was conducted from September 01 to December 01/2018. A total of 405 mothers (135 cases and 270 controls) were included in the study. Multistage sampling technique was employed. Data were collected using structured questionnaire through face to face interview and checklist via Chart review. Data were entered into Epi Info version 7 and export to Statistical Package for Social Sciences (SPSS) version 20 for analysis. Descriptive statics like mean, frequency and percentage was used to describe the characteristics of participants. Both bivariable and multivariable analyses were carried out. Variable having p-value <0.05 in binary logistic regression were the candidate for multivariable analyses. Finally, the statistical significance of the study was claimed based on the Adjusted Odds Ratio (AOR) with 95% Confidence Interval (CI) and its p-value <0.05. Result The result of multivariable analysis show that mothers with no formal education (AOR = 2.24; 95% CI: 1.28, 3.91), history of abortion (AOR = 2.92; 95% CI: 1.3, 6.4), multiple gestation (AOR = 4.1; 95% CI: 1.7, 9.8), hemoglobin level <11 gm/dl (AOR = 2.75; 95% CI: 1.11, 7.31), premature rupture of membrane (AOR = 6.4; 95% CI: 3.23, 12.7) and pregnancy induced hypertension (AOR = 4.74; 95% CI: 2.49, 9.0) had statistically significant association with experiencing preterm birth. Conclusion and Recommendation Most of the determinants of preterm birth found to be modifiable. Thus, putting emphasis for prevention of obstetric and gynecologic complications such as anemia, premature rupture of membrane and abortion would decrease the incidence of preterm birth. Moreover, strengthening Information Communication Education about prevention of preterm birth was recommended.
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Kushwaha P, Meravi A, Khare I. Analytical study to evaluate maternal morbidity and perinatal outcome among pregnant women with severe anaemia at tertiary care centre: A hospital-based study. ADVANCES IN HUMAN BIOLOGY 2020. [DOI: 10.4103/aihb.aihb_60_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Dietary Quantity and Diversity among Anemic Pregnant Women in Madura Island, Indonesia. J Nutr Metab 2019; 2019:2647230. [PMID: 31662905 PMCID: PMC6791205 DOI: 10.1155/2019/2647230] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 08/18/2019] [Accepted: 09/11/2019] [Indexed: 12/31/2022] Open
Abstract
Dietary diversity and quantity are important for pregnant women, particularly anemic pregnant women. This study aimed to analyze the association between dietary quantity and diversity among anemic pregnant women. This cross-sectional study was conducted in 2017 at Madura Island, Indonesia, and involved 152 anemic pregnant women. Hemoglobin concentration was analyzed by the cyanmethemoglobin method. Dietary quantity was measured by the 2 × 24 h recall. Dietary diversity was determined by Minimum Dietary Diversity for Women of Reproductive Age (MDD-W). Spearman's rank association was performed to analyze the association between dietary diversity and quantity. The median of hemoglobin concentration was 10.1 g/dL, and 57.2% pregnant women had mild anemia. Most of the pregnant women had low adequacy levels of energy and macro- and micronutrients (except for iron). More than half (57.9%) of anemic pregnant women had reached minimum dietary diversity. Family size (p=0.048) and gestational age (p=0.004) had negative associations with dietary diversity. Dietary diversity had positive associations with energy (p=0.029), protein (p=0.003), vitamin A (p=0.001), vitamin C (p=0.004), and zinc (p=0.015) adequacy levels. Dietary diversity had no significant association with calcium (p=0.078) and iron adequacy level (p=0.206). High prevalence of mild and moderate anemia was found among pregnant women in their third trimester. Anemic pregnant women already consumed food with minimum dietary diversity but did not meet dietary quantity. Increasing dietary quantity is a priority for anemic pregnant women.
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Rahman MS, Mushfiquee M, Masud MS, Howlader T. Association between malnutrition and anemia in under-five children and women of reproductive age: Evidence from Bangladesh Demographic and Health Survey 2011. PLoS One 2019; 14:e0219170. [PMID: 31269082 PMCID: PMC6609031 DOI: 10.1371/journal.pone.0219170] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2017] [Accepted: 06/18/2019] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Bangladesh is one of the most anemia prone countries in South Asia. Children of age under five years and women of reproductive age are particularly vulnerable in this region. Although several studies have investigated the risk factors of anemia, only few have explored its association with malnutrition, despite its high prevalence in the same group. The objective of this paper is to investigate the association of malnutrition with anemia by conducting separate analyses for under-five children and women of reproductive age using data from the nationally representative 2011 Bangladesh Demographic and Health Survey. METHODS Two binary outcome variables are considered separately: presence of anemia in children under five years of age (Hb<11.0 g/dl) and presence of anemia in women of childbearing age (Hb<12.0 g/dl). The exposures of interest corresponding to these two outcomes are stunting (low height-for-age) and low BMI (<18.5 kg/m2), respectively. Preliminary analysis involves estimating the association between exposure and outcome while controlling for a single confounder by computing adjusted odds ratios (adjOR) using the Cochran-Mantel-Haenszel approach in stratified analysis. Later, associations between the exposures and outcomes are estimated separately for under-five children and women of reproductive age by fitting multivariable regression models that adjust simultaneously for several confounders. RESULTS The prevalence of anemia is found to be higher among both the stunted children and women with low BMI compared to their healthy counterparts (Children: 56% vs 48%; women: 50% vs 43%). Furthermore, stunted children and women with low BMI have significantly increased odds of developing anemia, as reflected by the adjusted ORs of 1.76 (95% CI:1.10-2.83) and 1.81 (95% CI: 1.11-3.48), respectively. The association of stunting with anemia in children was modified by their age and socio-economic condition, where risk of being anemic decreases with increasing age but with a lower rate for stunted children from richest family. In addition, stunted children of anemic mothers are at greater risk of being anemic compared to non-stunted children of anemic or non-anemic mothers. Again the association between BMI and anemia in women is modified by the level of education, with risk of anemia being lowest among women with low BMI and higher education. CONCLUSION Evidence-based policies targeting the vulnerable groups are required to combat anemia and nutritional deficiencies simultaneously under the same program.
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Affiliation(s)
- M. Shafiqur Rahman
- Institute of Statistical Research and Training, University of Dhaka, Dhaka, Bangladesh
| | - Muntaha Mushfiquee
- Institute of Statistical Research and Training, University of Dhaka, Dhaka, Bangladesh
| | - Mohammad Shahed Masud
- Institute of Statistical Research and Training, University of Dhaka, Dhaka, Bangladesh
| | - Tamanna Howlader
- Institute of Statistical Research and Training, University of Dhaka, Dhaka, Bangladesh
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Georgieff MK, Krebs NF, Cusick SE. The Benefits and Risks of Iron Supplementation in Pregnancy and Childhood. Annu Rev Nutr 2019; 39:121-146. [PMID: 31091416 DOI: 10.1146/annurev-nutr-082018-124213] [Citation(s) in RCA: 80] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Iron deficiency is the most common micronutrient deficiency in the world and disproportionately affects pregnant women and young children. Iron deficiency has negative effects on pregnancy outcomes in women and on immune function and neurodevelopment in children. Iron supplementation programs have been successful in reducing this health burden. However, iron supplementation of iron-sufficient individuals is likely not necessary and may carry health risks for iron-sufficient and potentially some iron-deficient populations. This review considers the physiology of iron as a nutrient and how this physiology informs decision-making about weighing the benefits and risks of iron supplementation in iron-deficient, iron-sufficient, and iron-overloaded pregnant women and children.
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Affiliation(s)
- Michael K Georgieff
- Department of Pediatrics, University of Minnesota School of Medicine, Minneapolis, Minnesota 55454, USA; ,
| | - Nancy F Krebs
- Department of Pediatrics, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, Colorado 80045, USA;
| | - Sarah E Cusick
- Department of Pediatrics, University of Minnesota School of Medicine, Minneapolis, Minnesota 55454, USA; ,
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Yuan X, Hu H, Zhang M, Long W, Liu J, Jiang J, Yu B. Iron deficiency in late pregnancy and its associations with birth outcomes in Chinese pregnant women: a retrospective cohort study. Nutr Metab (Lond) 2019; 16:30. [PMID: 31080491 PMCID: PMC6505078 DOI: 10.1186/s12986-019-0360-9] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Accepted: 05/01/2019] [Indexed: 11/10/2022] Open
Abstract
Background Several biomarkers are used to measure iron deficiency (ID) during pregnancy, but the prevalence of ID and its association with adverse birth outcomes shows inconsistent results. The aim of this study was to examine the prevalence of ID in third trimester using multiple indicators of iron status and the relationship with birth outcomes in Chinese population. Methods We conducted a retrospective observational cohort study of 11,581 pregnant women between 2016 and 2017 in Changzhou City, Jiangsu Province, China. We obtained the data (maternal characteristics and birth outcomes) and the concentrations of ID biomarkers from our hospitalization information system and laboratory information system, respectively. Using serum ferritin (SF), serum transferrin (ST) and their ratio as criteria of ID, we investigated associations between birth outcomes and late pregnancy ID. Results The prevalence of ID in our study was 51.82% as defined by low SF (< 12 μg/L), 54.43% as defined by high ST (> 4 g/L) and 53.90% as defined by high ratio of ST/SF (Log 10 transform > 5.52). Maternal ST/SF ratio was associated with higher mean birth weight (97.04 g; 95% CI, 74.28, 119.81 for the highest vs. lowest quartile). Third trimester maternal ID, defined by ST/SF ratio, was associated with lower risks of preterm birth (PTB), low birth weight (LBW) and small for gestational age (SGA) infants, higher risks of macrosomia and large for gestational age (LGA) babies (for PTB: OR = 0.53, 95% CI, 0.36-0.77; for LBW: OR = 0.44, 95% CI, 0.31-0.62; for SGA: OR = 0.69, 95% CI, 0.57-0.83; for macrosomia: OR = 1.39, 95% CI, 1.13-1.70; for LGA: OR = 1.20, 95% CI, 1.04-1.39). Conclusions ID in the third-trimester of pregnancy are frequent in Chinese women. Our findings suggest that the ratio of ST/SF measured in late pregnancy could be useful as a significant predictor of unfavorable birth outcomes.
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Affiliation(s)
- Xiaosong Yuan
- 1Department of Prenatal Diagnosis Laboratory, Changzhou Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, 16th Ding Xiang Road, Changzhou, 213003 Jiangsu China
| | - Huiwen Hu
- 2Department of Maternity Health Care0, Changzhou Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, Changzhou, China
| | - Ming Zhang
- 3Department of laboratory medicine, Changzhou Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, Changzhou, China
| | - Wei Long
- 1Department of Prenatal Diagnosis Laboratory, Changzhou Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, 16th Ding Xiang Road, Changzhou, 213003 Jiangsu China
| | - Jianbing Liu
- 1Department of Prenatal Diagnosis Laboratory, Changzhou Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, 16th Ding Xiang Road, Changzhou, 213003 Jiangsu China
| | - Jian Jiang
- 4Department of Obstetrics and Gynecology, Changzhou Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, Changzhou, China
| | - Bin Yu
- 1Department of Prenatal Diagnosis Laboratory, Changzhou Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, 16th Ding Xiang Road, Changzhou, 213003 Jiangsu China
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Young MF, Oaks BM, Tandon S, Martorell R, Dewey KG, Wendt AS. Maternal hemoglobin concentrations across pregnancy and maternal and child health: a systematic review and meta-analysis. Ann N Y Acad Sci 2019; 1450:47-68. [PMID: 30994929 PMCID: PMC6767572 DOI: 10.1111/nyas.14093] [Citation(s) in RCA: 117] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 03/05/2019] [Accepted: 03/19/2019] [Indexed: 12/14/2022]
Abstract
Maternal anemia is a well‐recognized global health problem; however, there remain questions on specific hemoglobin (Hb) thresholds that predict health risk or protection for mother and child. We conducted a systematic review and meta‐analysis to examine the associations of maternal Hb concentrations with a range of maternal and infant health outcomes, accounting for the timing of measurement (preconception, and first, second, and third trimesters), etiology of anemia, and cutoff category. The systematic review included 272 studies and the meta‐analysis included 95 studies. Low maternal Hb (<110 g/L) was associated with poor birth outcomes (low birth weight, preterm birth, small‐for‐gestational‐age (SGA), stillbirth, and perinatal and neonatal mortality) and adverse maternal outcomes (postpartum hemorrhage, preeclampsia, and blood transfusion). High maternal Hb (>130 g/L) was associated with increased odds of SGA, stillbirth, preeclampsia, and gestational diabetes. Relationships varied by the timing of measurement and cutoff category (stronger associations with lower cutoffs); limited data were available on anemia etiology. There were insufficient data for other maternal outcomes and long‐term child health outcomes. Current data are insufficient for determining if revisions to current Hb cutoffs are required. Pooled high‐quality individual‐level data analyses, as well as prospective cohort studies, would be valuable to inform the reevaluation of Hb cutoffs.
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Affiliation(s)
- Melissa F Young
- Hubert Department of Global Health, Emory University, Atlanta, Georgia
| | - Brietta M Oaks
- Department of Nutrition and Food Sciences, University of Rhode Island, Kingston, Rhode Island
| | - Sonia Tandon
- Hubert Department of Global Health, Emory University, Atlanta, Georgia
| | | | - Kathryn G Dewey
- Department of Nutrition, University of California, Davis, Davis, California
| | - Amanda S Wendt
- Heidelberg Institute of Global Health, University of Heidelberg, Heidelberg, Germany
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The relationship between maternal body mass index and pregnancy outcomes in twin compared with singleton pregnancies. Int J Obes (Lond) 2019; 44:33-44. [PMID: 30992520 DOI: 10.1038/s41366-019-0362-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Revised: 02/22/2019] [Accepted: 03/10/2019] [Indexed: 11/08/2022]
Abstract
OBJECIVE Women with twins have an a priori increased risk for many of the complications associated with maternal obesity. Thus, the impact of maternal obesity in twins may differ from that reported in singletons. In addition, given the increased metabolic demands in twin pregnancies, the impact of maternal underweight may be greater in twin compared with singleton gestations. Our objective was to test the hypothesis that the relationship between maternal pre-pregnancy body mass index (BMI) and adverse pregnancy outcomes differ between twin and singleton gestations. METHODS This was a retrospective population-based study of all women who had a singleton or twin hospital birth in Ontario, Canada, between April 2012 and March 2016. Data were obtained from the Better Outcomes Registry & Network (BORN) Ontario. The relationship between maternal BMI category and pregnancy complications was assessed separately in twin and singleton gestations. The primary outcome was a composite variable that included any of the following complications: preeclampsia, gestational diabetes, or preterm birth before 320/7 weeks. Relative risk (aRR) and 95% confidence intervals (CI) for adverse outcomes for each BMI category as defined by WHO (using normal weight category as reference) were generated using modified Poisson regression, adjusting for maternal age, nulliparity, smoking, previous preterm birth, and fetal sex. RESULTS A total of 487,870 women with singleton (n = 480,010) and twin (n = 7860) pregnancies met the inclusion criteria. The risk of the composite primary outcome, preeclampsia, gestational diabetes, and cesarean delivery increased with high maternal BMI in both singleton and twin gestations, but these associations were weaker in twin compared with singleton gestations (association of BMI ≥ 40.0 kg/m2 with primary outcome: aRR = 3.10, 95%-CI 2.96-3.24 in singletons compared with aRR = 1.74, 95%-CI 1.37-2.20 in twins). In singleton pregnancies the risk of preterm birth at < 320/7 weeks increased with maternal BMI, mainly due to an increased risk of provider-initiated preterm birth. In twin gestations, however, underweight (but not overweight or obesity) was associated with the greatest risk of preterm birth at < 32 weeks (aRR 1.67, 95%-CI 1.17-2.37), mainly due to an increased risk of spontaneous preterm birth (aRR 2.10, 95%-CI 1.44-3.08). CONCLUSION In healthy women with twin pregnancies, underweight is associated with the greatest risk for preterm birth, while the association of maternal obesity with adverse pregnancy outcomes is weaker than that observed in singletons.
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Rahmati S, Azami M, Badfar G, Parizad N, Sayehmiri K. The relationship between maternal anemia during pregnancy with preterm birth: a systematic review and meta-analysis. J Matern Fetal Neonatal Med 2019; 33:2679-2689. [DOI: 10.1080/14767058.2018.1555811] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Shoboo Rahmati
- Student Research Committee, Ilam University of Medical Sciences, Ilam, Iran
| | - Milad Azami
- Student Research Committee, Ilam University of Medical Sciences, Ilam, Iran
| | - Gholamreza Badfar
- Department of Pediatrics, Behbahan Faculty of Medical Sciences, Behbahan, Iran
| | - Naser Parizad
- Nursing and Midwifery Faculty, Urmia University of Medical Sciences, Urmia, Iran
| | - Kourosh Sayehmiri
- Psychosocial Injuries Research Center, Ilam University of Medical Sciences, Ilam, Iran
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Glycosylation Profile of the Transferrin Receptor in Gestational Iron Deficiency and Early-Onset Severe Preeclampsia. J Pregnancy 2019; 2019:9514546. [PMID: 30854239 PMCID: PMC6378037 DOI: 10.1155/2019/9514546] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 12/01/2018] [Accepted: 01/15/2019] [Indexed: 12/14/2022] Open
Abstract
Objective To examine the expression of hypoxia-inducible factor-1α (HIF-1α), TfR1, and TfR1-attached terminal monosaccharides in placentas of women with IDAP and severe preeclampsia. Methods TfR1 and HIF-1α were detected by western blot. Immunoadsorption of TfR1 was performed to characterize the terminal monosaccharides by specific lectin binding. Results There was no difference in the expression of TfR1 and HIF-1α between groups. Lectin blot analysis pointed out an overexpression of galactose β1-4 N-acetylglucosamine (Gal-GlcNAc) and mannose in severe preeclampsia. Conclusion The increase in Gal-GlcNAc may be due to the increased presence of antennary structures and the mannose glycans of TfR1 may indicate the presence of misfolded or incomplete proteins. These findings may be associated with the low expression of placental TfR1 in women with preeclampsia.
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Dinçgez Çakmak B, Türker ÜA, Öztaş S, Arık M, Üstünyurt E. The effect of first trimester hemoglobin levels on pregnancy outcomes. Turk J Obstet Gynecol 2018; 15:165-170. [PMID: 30202626 PMCID: PMC6127473 DOI: 10.4274/tjod.87269] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Accepted: 06/13/2018] [Indexed: 12/01/2022] Open
Abstract
Objective The relationship between hemoglobin levels and pregnancy outcomes is still a challenging issue. There is a supported opinion about the increased adverse pregnancy outcomes both with low and high hemoglobin levels. In this study, we aimed to evaluate this association for first trimester hemoglobin levels in a Turkish population. Materials and Methods In this retrospective study, 1306 women who were followed up during their pregnancy and gave birth in our clinic were enrolled. The patients were divided into three groups: hemoglobin <11 g/dL (n=490), 11≤ hemoglobin <13 g/dL (n=673), and hemoglobin ≥13 g/dL (n=143). The hemoglobin <11 g/dL group was classified into two subgroups as hemoglobin ≤9 g/dL (n=64) and hemoglobin >9 g/dL (n=426). Demographic characteristics, first trimester hemoglobin levels, gestational age at delivery and mode, birth weight, Apgar scores, and pregnancy outcomes were recorded and compared between the groups. Results Pregnancy-induced hypertension, preterm birth, neonatal intensive care unit admission, birth weight, gestational age at delivery, Apgar scores, and postpartum hemorrhage were significantly different between the three groups. In the pairwise comparison, gestational age at delivery, birth weight, and first minute Apgar scores were higher in the 11≤ hemoglobin <13 g/dL group, and pregnancy-induced hypertension was more common in the hemoglobin ≥13 g/dL group as compared with the others. Moreover, the preterm delivery rate was highest in the hemoglobin ≥13 g/dL (26.6%) group and lowest (7.3%) in the 11≤ hemoglobin <13 g/dL group. The neonatal intensive care unit admission rate was higher both the hemoglobin <11 g/dL and hemoglobin ≥13 g/dL groups. Postpartum hemorrhage was more common in the hemoglobin <11 g/dL group as compared with the other groups. Furthermore, pregnancy-induced hypertension was more common in the hemoglobin ≤9 g/dL subgroup (p=0.012). Conclusion In conclusion, both low and high hemoglobin levels are related with adverse pregnancy outcomes. We suggest that hemoglobin levels must be screened during pregnancy to provide maternal and fetal well-being.
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Affiliation(s)
- Burcu Dinçgez Çakmak
- University of Health Sciences, Bursa Yüksek İhtisas Training and Research Hospital, Clinic of Obstetrics and Gynecology, Bursa, Turkey
| | - Ülkü Ayşe Türker
- University of Health Sciences, Bursa Yüksek İhtisas Training and Research Hospital, Clinic of Obstetrics and Gynecology, Bursa, Turkey
| | - Sonay Öztaş
- University of Health Sciences, Bursa Yüksek İhtisas Training and Research Hospital, Clinic of Obstetrics and Gynecology, Bursa, Turkey
| | - Melis Arık
- University of Health Sciences, Bursa Yüksek İhtisas Training and Research Hospital, Clinic of Obstetrics and Gynecology, Bursa, Turkey
| | - Emin Üstünyurt
- University of Health Sciences, Bursa Yüksek İhtisas Training and Research Hospital, Clinic of Obstetrics and Gynecology, Bursa, Turkey
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Preconception Hb concentration and risk of preterm birth in over 2·7 million Chinese women aged 20-49 years: a population-based cohort study. Br J Nutr 2018; 120:508-516. [PMID: 29986785 DOI: 10.1017/s0007114518001721] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Evidence on the association between maternal Hb concentration and preterm birth (PTB) risk is inconclusive. This paper aimed to explore whether women with anaemia or high Hb level before pregnancy would be at higher risk of PTB. We conducted a population-based cohort study with 2 722 274 women aged 20-49 years, who participated in National Free Pre-Pregnancy Checkups Project between 2013 and 2015 and delivered a singleton before 2016 in rural China. Logistic models were used to estimate OR and 95 % CI after adjusting for confounding variables. Restricted cubic spline models were applied to evaluate the dose-response relationships. A total of 192 819 (7·08 %) women had preterm deliveries. Compared with women with Hb of 110-149 g/l, the multivariable-adjusted OR for PTB was 1·19 (95 % CI 0·98, 1·44) for women with Hb<70 g/l, 1·01 (95 % CI 0·97, 1·03) for 70-99 g/l, 0·96 (95 % CI 0·95, 0·98) for 100-109 g/l, 1·04 (95 % CI 1·01, 1·06) for 150-159 g/l, 1·11 (95 % CI 1·05, 1·17) for 160-169 g/l and 1·19 (95 % CI 1·11, 1·27) for ≥170 g/l, respectively. The multivariable-adjusted OR for very PTB (VPTB) was 1·07 (95 % CI 1·03, 1·12) and 1·06 (95 % CI 1·01, 1·12) for women with Hb <110 and ≥150 g/l, compared with those with Hb of 110-149 g/l, respectively. Our study identified a U-shaped relationship between maternal preconception Hb concentration and PTB risk. Both preconception anaemia and high Hb level can significantly increase VPTB risk. Appropriate intervention for women with abnormal Hb levels before pregnancy is very necessary.
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The influence of anemia on maternal and neonatal outcomes in adolescent pregnant. JOURNAL OF SURGERY AND MEDICINE 2018. [DOI: 10.28982/josam.393143] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Assessment of risk factors and predictors for spontaneous pre-term birth in a South Indian antenatal cohort. CLINICAL EPIDEMIOLOGY AND GLOBAL HEALTH 2018. [DOI: 10.1016/j.cegh.2017.07.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Dewey KG, Oaks BM. U-shaped curve for risk associated with maternal hemoglobin, iron status, or iron supplementation. Am J Clin Nutr 2017; 106:1694S-1702S. [PMID: 29070565 PMCID: PMC5701708 DOI: 10.3945/ajcn.117.156075] [Citation(s) in RCA: 134] [Impact Index Per Article: 19.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Both iron deficiency (ID) and excess can lead to impaired health status. There is substantial evidence of a U-shaped curve between the risk of adverse birth outcomes and maternal hemoglobin concentrations during pregnancy; however, it is unclear whether those relations are attributable to conditions of low and high iron status or to other mechanisms. We summarized current evidence from human studies regarding the association between birth outcomes and maternal hemoglobin concentrations or iron status. We also reviewed effects of iron supplementation on birth outcomes among women at low risk of ID and the potential mechanisms for adverse effects of high iron status during pregnancy. Overall, we confirmed a U-shaped curve for the risk of adverse birth outcomes with maternal hemoglobin concentrations, but the relations differ by trimester. For low hemoglobin concentrations, the link with adverse outcomes is more evident when hemoglobin concentrations are measured in early pregnancy. These relations generally became weaker or nonexistent when hemoglobin concentrations are measured in the second or third trimesters. Associations between high hemoglobin concentration and adverse birth outcomes are evident in all 3 trimesters but evidence is mixed. There is less evidence for the associations between maternal iron status and adverse birth outcomes. Most studies used serum ferritin (SF) concentrations as the indicator of iron status, which makes the interpretation of results challenging because SF concentrations increase in response to inflammation or infection. The effect of iron supplementation during pregnancy may depend on initial iron status. There are several mechanisms through which high iron status during pregnancy may have adverse effects on birth outcomes, including oxidative stress, increased blood viscosity, and impaired systemic response to inflammation and infection. Research is needed to understand the biological processes that underlie the U-shaped curves seen in observational studies. Reevaluation of cutoffs for hemoglobin concentrations and indicators of iron status during pregnancy is also needed.
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Affiliation(s)
- Kathryn G Dewey
- Program in International and Community Nutrition and Department of Nutrition, University of California, Davis, CA
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Abdel-Malek K, El-Halwagi MA, Hammad BE, Azmy O, Helal O, Eid M, Abdel-Rasheed M. Role of maternal serum ferritin in prediction of preterm labour. J OBSTET GYNAECOL 2017; 38:222-225. [PMID: 28903602 DOI: 10.1080/01443615.2017.1347915] [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] [Indexed: 10/18/2022]
Abstract
The aim of this study was to evaluate the value of measurement of serum ferritin level in pregnant women to predict preterm labour. The study included 236 women whose haemoglobin (Hb) levels were ≥10.5 gm/dl and gestational age (GA) was less than 30 weeks. Serum ferritin levels were measured at 30 weeks of gestational age. At the end of the study, 23 women delivered with preterm premature rupture of membrane (PPROM) and 17 women delivered before 37 weeks but without PROM (study group). The rest of the pregnant women (196 women) delivered between 37 and 40 weeks (control group). We found a significant difference between the two groups with respect to serum ferritin level. The cut off value of serum ferritin between the two groups was 31 ng/ml with sensitivity 92.8%, specificity 99.4%, positive predictive value 97.5%, negative predictive value 98.4% and accuracy 98.3%. Impact statement What is already known on this subject: maternal serum ferritin has been found to be elevated in women who delivered preterm. What the results of this study add: In this study, we have shown that serum ferritin 31 ng/ml is the optimal cut-point between preterm and full-term women. What the implications are of these findings for clinical practice and/or further research: Serum ferritin 31 ng/ml could be proposed as a potential helpful marker to predict preterm labour.
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Affiliation(s)
- Khaled Abdel-Malek
- a Department of Obstetrics and Gynecology, Faculty of Medicine , Cairo University , Cairo , Egypt
| | - Mohamed Ahmed El-Halwagi
- a Department of Obstetrics and Gynecology, Faculty of Medicine , Cairo University , Cairo , Egypt
| | - Bahaa Eldin Hammad
- a Department of Obstetrics and Gynecology, Faculty of Medicine , Cairo University , Cairo , Egypt
| | - Osama Azmy
- b Department of Reproductive Health Research , National Research Centre , Cairo , Egypt
| | - Omneya Helal
- a Department of Obstetrics and Gynecology, Faculty of Medicine , Cairo University , Cairo , Egypt
| | - Marwa Eid
- a Department of Obstetrics and Gynecology, Faculty of Medicine , Cairo University , Cairo , Egypt
| | - Mazen Abdel-Rasheed
- b Department of Reproductive Health Research , National Research Centre , Cairo , Egypt
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Li Z, Mei Z, Zhang L, Li H, Zhang Y, Li N, Ye R, Ren A, Liu JM, Serdula MK. Effects of Prenatal Micronutrient Supplementation on Spontaneous Preterm Birth: A Double-Blind Randomized Controlled Trial in China. Am J Epidemiol 2017; 186:318-325. [PMID: 28472219 DOI: 10.1093/aje/kwx094] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Accepted: 09/12/2016] [Indexed: 12/17/2022] Open
Abstract
In this secondary analysis of data from a double-blind randomized controlled trial carried out in northern China, we aimed to assess the effect of prenatal supplementation with multiple micronutrients (MMN) or iron + folic acid (IFA), versus folic acid (FA) alone, on risk of spontaneous preterm birth (SPB) and the impact of supplementation timing on SPB. A total of 18,775 nulliparous pregnant women enrolled between 2006 and 2009 were randomly assigned to receive daily FA, IFA, or MMN from the period before 20 weeks' gestation to delivery. The incidences of SPB for women consuming FA, IFA, and MMN were 5.7%, 5.6% and 5.1%, respectively. Compared with women given FA, the relative risks of SPB for those using MMN and IFA were 0.99 (95% confidence interval: 0.85, 1.16) and 0.89 (95% confidence interval: 0.79, 1.05), respectively. SPB incidence in women who started consuming FA, IFA, and MMN before the 12th week of gestation (4.6%, 4.2%, and 3.9%, respectively) was significantly reduced compared with starting supplement use on or after the 12th gestational week (6.9%, 7.2%, and 6.4%, respectively). Starting use of FA, IFA, or MMN supplements before the 12th week of gestation produced a 41%-45% reduction in risk of SPB. Early prenatal enrollment and micronutrient use during the first trimester of pregnancy appeared to be of particular importance for prevention of SPB, regardless of supplement group.
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Zhang Y, Li Z, Li H, Jin L, Zhang Y, Zhang L, Liu J, Ye R, Liu J, Ren A. Maternal haemoglobin concentration and risk of preterm birth in a Chinese population. J OBSTET GYNAECOL 2017; 38:32-37. [PMID: 28741390 DOI: 10.1080/01443615.2017.1325454] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
The aim was to examine the relationship between maternal haemoglobin (Hb) concentrations and risk of preterm birth by secondary analysis of data from a randomised controlled trial. This analysis included 10,430 women who were at least 20 years old and no more than 20 weeks of gestation. Results revealed neither first- nor second-trimester Hb concentrations were associated with the risk of preterm births. However, the risk of preterm birth increased when the Hb level was low (<130 g/L) in the first but high (≥130 g/L) in the second trimester, regardless of supplement type (iron-containing: AOR: 2.26, 95% CI: 1.37-3.73; non-iron-containing: AOR: 2.16, 95% CI: 1.11-4.21). In conclusion, maternal Hb concentrations were not associated with the risk of preterm birth. A low-Hb level in the first trimester but coupled with a high Hb level in the second was associated with an elevated risk of preterm birth. Impact statement What is already known on this subject: The relationship between maternal Hb concentration and preterm birth remains inconclusive. Some studies have shown an association between a low- or a high-Hb level and an increased risk of preterm birth. Others have not found such an association. Yet others have shown a U-shaped relationship. What do the results of this study add: Overall, maternal Hb concentrations in first or second trimester were not statistically associated with the risk of preterm birth. However, women with a low Hb concentration in the first trimester together with a high Hb concentration in the second trimester had an increased risk of preterm birth, compared to women who had a higher Hb concentration in the first trimester that remained similar during the second trimester. What are the implications are of these findings for clinical practice and/or further research: Our finding helps identify mothers who are at risk of having a preterm delivery. Investigating the underlying clinical causes of the unfavourable change in Hb levels and close follow-up to these women may help improve birth outcomes.
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Affiliation(s)
- Yiting Zhang
- a Institute of Reproductive and Child Health/Ministry of Health Key Laboratory of Reproductive Health , Peking University , Beijing , China.,b Haidian Maternal and Child Health Hospital , Beijing , China
| | - Zhiwen Li
- a Institute of Reproductive and Child Health/Ministry of Health Key Laboratory of Reproductive Health , Peking University , Beijing , China
| | - Hongtian Li
- a Institute of Reproductive and Child Health/Ministry of Health Key Laboratory of Reproductive Health , Peking University , Beijing , China
| | - Lei Jin
- a Institute of Reproductive and Child Health/Ministry of Health Key Laboratory of Reproductive Health , Peking University , Beijing , China
| | - Yali Zhang
- a Institute of Reproductive and Child Health/Ministry of Health Key Laboratory of Reproductive Health , Peking University , Beijing , China
| | - Le Zhang
- a Institute of Reproductive and Child Health/Ministry of Health Key Laboratory of Reproductive Health , Peking University , Beijing , China
| | - Jufen Liu
- a Institute of Reproductive and Child Health/Ministry of Health Key Laboratory of Reproductive Health , Peking University , Beijing , China
| | - Rongwei Ye
- a Institute of Reproductive and Child Health/Ministry of Health Key Laboratory of Reproductive Health , Peking University , Beijing , China
| | - Jianmeng Liu
- a Institute of Reproductive and Child Health/Ministry of Health Key Laboratory of Reproductive Health , Peking University , Beijing , China
| | - Aiguo Ren
- a Institute of Reproductive and Child Health/Ministry of Health Key Laboratory of Reproductive Health , Peking University , Beijing , China.,c Department of Epidemiology and Biostatistics, School of Public Health , Peking University Health Science Center , Beijing , China
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Feng Y, Zhou H, Zhang Y, Perkins A, Wang Y, Sun J. Comparison in executive function in Chinese preterm and full-term infants at eight months. Front Med 2017. [DOI: 10.1007/s11684-017-0540-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Temu TB, Masenga G, Obure J, Mosha D, Mahande MJ. Maternal and obstetric risk factors associated with preterm delivery at a referral hospital in northern-eastern Tanzania. ASIAN PACIFIC JOURNAL OF REPRODUCTION 2016. [DOI: 10.1016/j.apjr.2016.07.009] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Rahman MM, Abe SK, Rahman MS, Kanda M, Narita S, Bilano V, Ota E, Gilmour S, Shibuya K. Maternal anemia and risk of adverse birth and health outcomes in low- and middle-income countries: systematic review and meta-analysis. Am J Clin Nutr 2016; 103:495-504. [PMID: 26739036 DOI: 10.3945/ajcn.115.107896] [Citation(s) in RCA: 302] [Impact Index Per Article: 37.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Accepted: 11/30/2015] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Anemia is a leading cause of maternal deaths and adverse pregnancy outcomes in developing countries. OBJECTIVES We conducted a systematic review and meta-analysis to estimate the pooled prevalence of anemia, the association between maternal anemia and pregnancy outcomes, and the population-attributable fraction (PAF) of these outcomes that are due to anemia in low- and middle-income countries. DESIGN PubMed, EMBASE, CINAHL, and the British Nursing Index were searched from inception to May 2015 to identify cohort studies of the association between maternal anemia and pregnancy outcomes. The anemic group was defined as having hemoglobin concentrations <10 or <11 g/dL or hematocrit values <33% or <34% depending on the study. A metaregression and stratified analysis were performed to assess the effects of study and participant characteristics on adverse pregnancy risk. The pooled prevalence of anemia in pregnant women by region and country-income category was calculated with the use of a random-effects meta-analysis. RESULTS Of 8182 articles reviewed, 29 studies were included in the systematic review, and 26 studies were included in the meta-analysis. Overall, 42.7% (95% CI: 37.0%, 48.4%) of women experienced anemia during pregnancy in low- and middle-income countries. There were significantly higher risks of low birth weight (RR: 1.31; 95% CI: 1.13, 1.51), preterm birth (RR: 1.63; 95% CI: 1.33, 2.01), perinatal mortality (RR: 1.51; 95% CI: 1.30, 1.76), and neonatal mortality (RR: 2.72; 95% CI: 1.19, 6.25) in pregnant women with anemia. South Asian, African, and low-income countries had a higher pooled anemia prevalence than did other Asian and upper-middle-income countries. Overall, in low- and middle-income countries, 12% of low birth weight, 19% of preterm births, and 18% of perinatal mortality were attributable to maternal anemia. The proportion of adverse pregnancy outcomes attributable to anemia was higher in low-income countries and in the South Asian region. CONCLUSION Maternal anemia remains a significant health problem in low- and middle-income countries.
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Affiliation(s)
- Md Mizanur Rahman
- Department of Global Health Policy, The University of Tokyo, Tokyo, Japan; Department of Population Science and Human Resource Development, University of Rajshahi, Rajshahi, Bangladesh; and
| | - Sarah Krull Abe
- Department of Global Health Policy, The University of Tokyo, Tokyo, Japan
| | - Md Shafiur Rahman
- Department of Global Health Policy, The University of Tokyo, Tokyo, Japan
| | - Mikiko Kanda
- Department of Global Health Policy, The University of Tokyo, Tokyo, Japan
| | - Saki Narita
- Department of Global Health Policy, The University of Tokyo, Tokyo, Japan
| | - Ver Bilano
- Department of Global Health Policy, The University of Tokyo, Tokyo, Japan
| | - Erika Ota
- Department of Health Policy, National Centre for Child Health and Development, Tokyo, Japan
| | - Stuart Gilmour
- Department of Global Health Policy, The University of Tokyo, Tokyo, Japan
| | - Kenji Shibuya
- Department of Global Health Policy, The University of Tokyo, Tokyo, Japan
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Mogos MF, Salemi JL, Sultan DH, Shelton MM, Salihu HM. Trends in Cervical Cancer Among Delivery-Related Discharges and its Impact on Maternal-Infant Birth Outcomes (United States, 1998-2009). Open Nurs J 2015; 9:42-50. [PMID: 26862361 PMCID: PMC4740966 DOI: 10.2174/1874434601509010042] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2015] [Revised: 06/02/2015] [Accepted: 06/15/2015] [Indexed: 12/20/2022] Open
Abstract
OBJECTIVES To estimate the national prevalence of cervical cancer (CCA) in women discharged from hospital after delivery, and to examine its associations with birth outcomes. METHODS We did a retrospective cross-sectional analysis of maternal hospital discharges in the United States (1998-2009). We used the Nationwide Inpatient Sample (NIS) database to identify hospital stays for women who gave birth. We determined length of hospital stay, in-hospital mortality, and used ICD-9-CM codes to identify CCA and all outcomes of interest. Multivariable logistic regression modeling was used to calculate adjusted odds ratios (AOR) and 95% confidence intervals (CI) for the associations between CCA and feto-maternal outcome. RESULTS In the 12-year period from 1998 to 2009, there were 8,387 delivery hospitalizations with a CCA diagnosis, a prevalence rate of 1.8 per 100,000 (95% CI=1.6, 1.9). After adjusting for potential confounders, CCA was associated with increased odds of maternal morbidities including: anemia (AOR, 1.78, 95% CI, 1.54-2.06), anxiety (AOR, 1.95, 95% CI, 1.11-3.42), cesarean delivery (AOR, 1.67, 95% CI, 1.46-1.90), and prolonged hospital stay (AOR, 1.51, 95% CI, 1.30-1.76), and preterm birth (AOR, 1.69, 95% CI, 1.46-1.97). CONCLUSION There is a recent increase in the prevalence of CCA during pregnancy. CCA is associated with severe feto-maternal morbidities. Interventions that promote safer sexual practice and regular screening for CCA should be promoted widely among women of reproductive age to effectively reduce the prevalence of CCA during pregnancy and its impact on the health of mother and baby.
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Affiliation(s)
- Mulubrhan F Mogos
- Department of Women Children and Family Health Science, College of Nursing, University of Illinois, 845 S Damen Ave, Chicago, IL 60612, USA
| | - Jason L Salemi
- Maternal and Child Health Comparative Effectiveness Research Group, Department of Epidemiology and Biostatistics, College of Public Health, University of South Florida, 13201 Bruce B. Downs Blvd., MDC 56, Tampa, FL 33612, USA
| | - Dawood H Sultan
- College of Public Health, University of South Florida, Department of Health Policy and Management; 13201 Bruce B. Downs Blvd., Tampa, FL 33612, USA
| | - Melissa M Shelton
- College of Nursing, University of South Florida, 12901 Bruce B. Downs Blvd., MDC Box 22, Tampa, FL 33612, USA
| | - Hamisu M Salihu
- Maternal and Child Health Comparative Effectiveness Research Group, Department of Epidemiology and Biostatistics, College of Public Health, University of South Florida, 13201 Bruce B. Downs Blvd., MDC 56, Tampa, FL 33612, USA; Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Morsani College of Medicine, University of South Florida, 12901 Bruce B. Downs Blvd., Tampa, FL 33612, USA
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