Findings

What do systematic reviews say?

3 questions · 3 findings · 2 reviews

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No studies found 0 · 0%GRADE not reported 0 · 0%Very low 0 · 0%Low 0 · 0%Moderate 3 · 100%High 0 · 0%

Vitamin D vs placebo or no intervention

Pre‐eclampsia · pregnant women and their infants..

Vitamin D supplementation probably leads to lower pre‐eclampsia compared with placebo or no intervention (moderate certainty).

1 finding from 1 review

Vitamin D supplementation for women during pregnancy 2019 · Cochrane Headline outcomes only
RR 0.48 [0.3, 0.79]
4 studies · 499 participants
Moderate

Vitamin E vs placebo, no placebo or other supplements

Pre‐eclampsia · pregnant women receiving vitamin E supplementation or control, living in areas where there is either inadequate dietary intake of vitamin…

Any vitamin E supplementation showed no clear difference in clinical pre‐eclampsia (random‐effects model) compared with placebo, no placebo or other supplements (moderate certainty).

1 finding from 1 review

Vitamin E supplementation in pregnancy 2015 · Cochrane Headline outcomes only
RR 0.91 [0.79, 1.06]
14 studies · 20878 participants
Moderate

Vitamin D plus calcium vs placebo or no intervention

Pre‐eclampsia · pregnant women and their infants..

Vitamin D + calcium supplementation probably leads to lower pre‐eclampsia compared with placebo or no intervention (moderate certainty).

1 finding from 1 review

Vitamin D supplementation for women during pregnancy 2019 · Cochrane Headline outcomes only
RR 0.5 [0.32, 0.78]
4 studies · 1174 participants
Moderate