It is very uncertain whether any intermittent iron regimen (with or without other vitamins and… changes maternal anaemia at term (Hb less than 110 g/L at 37 weeks'… compared with daily regimen (with same vitamins and minerals)‐maternal outcomes (very low certainty).
It is very uncertain whether any intermittent iron regimen (with or without other vitamins and… changes maternal iron‐deficiency anaemia at term (Hb less than 110 g/L and… compared with daily regimen (with same vitamins and minerals)‐maternal outcomes (very low certainty).
Any intermittent iron regimen (with or without other vitamins and… led to lower maternal death (death while pregnant or within 42 days of… compared with daily regimen (with same vitamins and minerals)‐maternal outcomes; GRADE not reported.
The review found no eligible studies for this question.
The review found no eligible studies for this question.
Vitamin D + calcium supplementation may leads to higher preterm birth (less than 37 weeks' gestation) compared with placebo or no intervention (low certainty).
It is very uncertain whether vitamin D + calcium supplementation changes low birthweight (less than 2500 g) compared with placebo or no intervention (very low certainty).
Vitamin D + calcium supplementation probably leads to lower pre‐eclampsia compared with placebo or no intervention (moderate certainty).
It is very uncertain whether vitamin D + calcium supplementation changes gestational diabetes compared with placebo or no intervention (very low certainty).
It is very uncertain whether wheat flour or wheat flour products fortified with folic acid plus… changes spina bifida compared with unfortified wheat flours or wheat flour products (not containing… (very low certainty).
It is very uncertain whether wheat flour or wheat flour products fortified with folic acid plus… changes encephalocoele compared with unfortified wheat flours or wheat flour products (not containing… (very low certainty).
It is very uncertain whether wheat flour or wheat flour products fortified with folic acid plus… changes fatal anencephaly compared with unfortified wheat flours or wheat flour products (not containing… (very low certainty).
It is very uncertain whether wheat flour or wheat flour products fortified with folic acid plus… changes anaemia compared with unfortified wheat flours or wheat flour products (not containing… (very low certainty).
Wheat flour or wheat flour products fortified with folic acid plus… showed no clear difference in anaemia compared with unfortified wheat flours or wheat flour products (not containing… (low certainty).