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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Dang, Shaonong Cheng, Yue Zeng, Lingxia Dibley, Michael J. Kong, Lingzhi Yan, Hong Chang, Suying |
| Spatial Coverage | China |
| Description | Author Affiliation: Zeng L ( Department of Public Health, Xi'an Jiaotong University College of Medicine, PO Box 46, Xi'an, Shaanxi 710061, China.); |
| Abstract | Objective To examine the impact of antenatal supplementation with multiple micronutrients or iron and folic acid compared with folic acid alone on birth weight, duration of gestation, and maternal haemoglobin concentration in the third trimester. Design Cluster randomised double blind controlled trial. Setting Two rural counties in north west China. Participants 5828 pregnant women and 4697 live births. Interventions Villages were randomised for all pregnant women to take either daily folic acid (control), iron with folic acid, or multiple micronutrients with a recommended allowance of 15 vitamins and minerals. Main outcome measures Birth weight, length, and head circumference measured within 72 hours after delivery. Neonatal survival assessed at the six week follow-up visit. Results Birth weight was 42 g (95% confidence interval 7 to 78 g) higher in the multiple micronutrients group compared with the folic acid group. Duration of gestation was 0.23 weeks (0.10 to 0.36 weeks) longer in the iron-folic acid group and 0.19 weeks (0.06 to 0.32 weeks) longer in the multiple micronutrients group. Iron-folic acid was associated with a significantly reduced risk of early preterm delivery (<34 weeks) (relative risk 0.50, 0.27 to 0.94, P=0.031). There was a significant increase in haemoglobin concentration in both iron-folic acid (5.0 g/l, 2.0 to 8.0 g/l, P=0.001) and multiple micronutrients (6.9 g/l, 4.1 to 9.6 g/l, P<0.001) groups compared with folic acid alone. In post hoc analyses there were no significant differences for perinatal mortality, but iron-folic acid was associated with a significantly reduced early neonatal mortality by 54% (relative risk 0.46, 0.21 to 0.98). Conclusion In rural populations in China antenatal supplementation with iron-folic acid was associated with longer gestation and a reduction in early neonatal mortality compared with folic acid. Multiple micronutrients were associated with modestly increased birth weight compared with folic acid, but, despite this weight gain, there was no significant reduction in early neonatal mortality. Pregnant women in developing countries need sufficient doses of iron in nutrient supplements to maximise reductions in neonatal mortality. Trial registration ISRCTN08850194. |
| ISSN | 09598138 |
| e-ISSN | 17561833 |
| Journal | BMJ (British Medical Journal) |
| Volume Number | 337 |
| Language | English |
| Publisher | British Medical Journal Publishing Group |
| Publisher Date | 2008-11-01 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | Open |
| Subject Keyword | Birth Weight Dietary Supplements Micronutrients Administration & Dosage Nutrition Disorders Therapy Pregnancy Complications Adolescent Cluster Analysis Double-Blind Method Gestational Age Hemoglobins Metabolism Patient Compliance Perinatal Mortality Pregnancy Pregnancy Outcome Rural Health Multicenter Study Randomized Controlled Trial Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, P.H.S. Medicine |
| Content Type | Text |
| Resource Type | Article |
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