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Evidence found and GRADE certainty

2 questions · 2 findings · 1 reviews · Pregnancy and Childbirth

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No studies found 0 · 0%GRADE not reported 0 · 0%Very low 0 · 0%Low 0 · 0%Moderate 2 · 100%High 0 · 0%

Calcium supplementation/fortification vs placebo or no intervention

Gestational age (preterm birth < 37 weeks) · healthy pregnant women receiving calcium supplementation vs placebo or no treatment

Calcium supplementation showed no clear difference in preterm birth (a) Birth prior to 37 weeks compared with placebo or no treatment (maternal outcomes) (moderate certainty).

1 finding from 1 review

Calcium supplementation/fortification vs placebo or no intervention

Preterm birth less than 34 weeks' gestation · healthy pregnant women receiving calcium supplementation vs placebo or no treatment

Calcium supplementation showed no clear difference in preterm birth (b) Birth prior to 34 weeks compared with placebo or no treatment (maternal outcomes) (moderate certainty).

1 finding from 1 review