Trial reportPublic health nutrition2017
Dietary iron and calcium intakes during pregnancy are associated with lower risk of prematurity, stillbirth and neonatal mortality among women in Tanzania.
Trial report in Public health nutrition, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 2 of them syntheses that pooled it.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
18 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Interventions to reduce preterm birth and stillbirth, and improve outcomes for babies born preterm in low- and middle-income countries: A systematic review.Journal of global health · 2021Pooled it
- Determinants of preterm birth among mothers who gave birth in East Africa: systematic review and meta-analysis.Italian journal of pediatrics · 2020Pooled it
- Multivitamin Supplementation Is Associated with Greater Adequacy of Gestational Weight Gain among Pregnant Women in Tanzania.The Journal of nutrition · 2022Trial
- Maternal iron and zinc and preterm labor risk: A nested case-control study based on the Lanzhou Birth Cohort Study (BBCS) in China.Asia Pacific journal of clinical nutrition · 2025Article
- Association between micronutrient supplementation during pregnancy and preterm birth: evidence from a large-scale children survey and Mendelian randomization study.Frontiers in public health · 2025Article
- Maternal iron nutrition during pregnancy and fetal intrauterine growth.Nutrition journal · 2024Article
- Predictive value of Vitamin D levels in pregnant women on gestational length and neonatal weight in China: a population-based retrospective study.Reproductive biology and endocrinology : RB&E · 2024Article
- Role of mineral nutrients other than iron in pregnancy: under recognized opportunities to improve maternal/fetal outcomes: a literature review.Archives of gynecology and obstetrics · 2024Review
- Some Immune Parameters of Term Newborns at Birth Are Associated with the Concentration of Iron, Copper and Magnesium in Maternal Serum.Nutrients · 2023Article
- Higher Dietary Intake of Animal Protein Foods in Pregnancy Is Associated with Lower Risk of Adverse Birth Outcomes.The Journal of nutrition · 2022Article
- Intervention fidelity and its determinants of focused antenatal care package implementation, in south Wollo zone, Northeast Ethiopia.BMC pregnancy and childbirth · 2021Article
- Associations between maternal calcium intake from diet and supplements during pregnancy and the risk of preterm birth in a Chinese population.European journal of clinical nutrition · 2021Article
- Minerals in Pregnancy and Their Impact on Child Growth and Development.Molecules (Basel, Switzerland) · 2020Review
- Adequacy of Nutrients Intake among Jordanian Pregnant Women in Comparison to Dietary Reference Intakes.International journal of environmental research and public health · 2019Article
- Calcium intake in high-risk pregnant women assisted in a high-complexity hospital.Molecular biology reports · 2019Article
- The association between daily 500 mg calcium supplementation and lower pregnancy-induced hypertension risk in Bangladesh.BMC pregnancy and childbirth · 2018Article
- Assessment of dietary intake and mineral status in pregnant women.Archives of gynecology and obstetrics · 2018Article
- Article
Corrections and comments
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Authors and funding
7 authors.
Funding
Abstract
objectivePrematurity, stillbirth and other adverse birth outcomes remain major concerns in resource-limited settings. Poor dietary intake of micronutrients during pregnancy has been associated with increased risk of adverse outcomes. We determined the relationships between dietary Fe and Ca intakes during pregnancy and risks of adverse birth outcomes among HIV-negative women.
designWomen's diet was assessed through repeated 24 h diet recalls in pregnancy. Mean intakes of total Fe, Fe from animal sources and Ca during pregnancy were examined in relation to adverse birth outcomes and neonatal mortality. Women were prescribed daily Fe supplements as per standard perinatal care.
settingDar es Salaam, Tanzania. SUBJECTS: A cohort of 7634 pregnant women.
resultsMedian (interquartile range) daily dietary intake of total Fe, animal Fe and Ca was 11·9 (9·3-14·7), 0·5 (0-1·1) and 383·9 (187·4-741·2) mg, respectively. Total Fe intake was significantly associated with reduced risk of stillbirth (trend over quartiles, P=0·010). Animal Fe intake was significantly associated with reduced risk of preterm birth and extreme preterm birth. Animal Fe intake was inversely related to neonatal mortality risk; compared with women in the lowest intake quartile, those in the top quartile were 0·51 times as likely to have neonatal death (95 % CI 0·33, 0·77). Higher Ca intake was associated with reduced risk of preterm birth (relative risk; 95 % CI: 0·76; 0·65, 0·88) and extreme preterm birth (0·63; 0·47, 0·86). Women in the highest Ca intake quartile had reduced risk of neonatal mortality (0·59; 0·37, 0·92).
conclusionsDaily dietary Fe and Ca intakes among pregnant women are very low. Improvement of women's diet quality during gestation is likely to improve the risks of adverse birth outcomes.
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