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Evidence found and GRADE certainty

6 questions · 6 findings · 1 reviews · Pregnancy and Childbirth

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No studies found 0 · 0%GRADE not reported 1 · 16.7%Very low 3 · 50%Low 2 · 33.3%Moderate 0 · 0%High 0 · 0%

Vitamin D + calcium + other vitamins and minerals vs calcium + other vitamins and minerals (but no vitamin D)

Gestational diabetes · pregnant women and their infants..

It is very uncertain whether vitamin D + calcium + other vitamins and minerals changes gestational diabetes compared with calcium + other vitamins and minerals (but no vitamin D) (very low certainty).

1 finding from 1 review

Vitamin D + calcium + other vitamins and minerals vs calcium + other vitamins and minerals (but no vitamin D)

Preterm birth · pregnant women and their infants..

Vitamin D + calcium + other vitamins and minerals showed no clear difference in preterm birth (less than 37 weeks' gestation) compared with calcium + other vitamins and minerals (but no vitamin D) (low certainty).

1 finding from 1 review

Vitamin D + calcium + other vitamins and minerals vs calcium + other vitamins and minerals (but no vitamin D)

Low birthweight · pregnant women and their infants..

Vitamin D + calcium + other vitamins and minerals showed no clear difference in low birthweight (less than 2500 g) compared with calcium + other vitamins and minerals (but no vitamin D) (low certainty).

1 finding from 1 review