Does weekly iron supplementation increase iron uptake in pregnant women and improve maternal and infant health?

贫血和缺铁在发展中国家的孕妇中很常见，会导致疲劳、早产、出生体重不足、婴儿生长发育受损。建议在怀孕期间每天补充铁，但由于不愉快的副作用，通常不采取。需要更好的策略来维持怀孕期间的铁和血红蛋白。我们将比较每周和每日铁片在1200名越南孕妇贫血率，出生体重，孕产妇和婴儿健康的影响。

Anaemia and iron deficiency are common in pregnant women in developing countries and cause fatigue, prematurity, low birth weight, impaired infant groowth and development. Daily iron is recommended in pregnancy but often not taken because of unpleasant side-effects. Better strategies are needed to maintain iron and haemoglobin during pregnancy. We will compare the effect of weekly and daily iron tablets in 1200 pregnant Vietnamese women on anaemia rates, birthweight, maternal and infant health.