Effect of vitamin A and beta carotene supplementation on women's health
- PMID: 10037611
- PMCID: PMC1115009
- DOI: 10.1136/bmj.318.7183.551
Effect of vitamin A and beta carotene supplementation on women's health
Abstract
PIP: A large field trial conducted in Nepal confirmed a beneficial effect of vitamin A and beta carotene supplementation on maternal mortality. Maternal deaths during pregnancy or within 12 weeks of delivery occurred at rates of 704/100,000 pregnancies (51/7241) in women who received a placebo, 426/100,000 pregnancies (33/7747) in women who received a single oral vitamin A supplement per week, and 361/100,000 pregnancies (26/7201) among those who received weekly oral beta carotene. The relative risks of pregnancy-related mortality were 0.60 (95% confidence interval (CI), 0.37-0.97) for vitamin A and 0.51 (95% CI, 0.30-0.86) for beta carotene. Before widespread vitamin A and beta carotene supplementation programs are implemented, further evaluation is required of the possible hazards to women of childbearing age and their offspring. For example, exposure to vitamin A during pregnancy has been linked to fetal malformations and schizophrenia.
Comment on
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Double blind, cluster randomised trial of low dose supplementation with vitamin A or beta carotene on mortality related to pregnancy in Nepal. The NNIPS-2 Study Group.BMJ. 1999 Feb 27;318(7183):570-5. doi: 10.1136/bmj.318.7183.570. BMJ. 1999. PMID: 10037634 Free PMC article. Clinical Trial.
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