Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

467 questions · 495 findings · 30 reviews · Pregnancy and Childbirth

No studies found 124 · 25.1%GRADE not reported 48 · 9.7%Very low 104 · 21%Low 134 · 27.1%Moderate 62 · 12.5%High 23 · 4.6%

Intervention not reported

Other (active dissemination vs passive dissemination) · Pregnant women who smoke

The intervention showed no clear difference in other (active dissemination vs passive dissemination) (moderate certainty).

1 finding from 1 review

Low‐GI dietary advice vs moderate‐ to high‐GI dietary advice (child outcomes)

Gestational weight gain · pregnant women

It is very uncertain whether low‐GI dietary advice changes gestational weight gain (kg) compared with moderate‐ to high‐GI dietary advice (maternal outcomes) (very low certainty).

1 finding from 1 review