Findings

What do systematic reviews say?

204 questions · 208 findings · 37 reviews · Gynaecology and Fertility

No studies found 35 · 16.8%GRADE not reported 4 · 1.9%Very low 62 · 29.8%Low 70 · 33.7%Moderate 32 · 15.4%High 5 · 2.4%

Live birth rate per woman · subfertile women with polycystic ovary syndrome

Metformin may leads to higher live birth rate (per woman) compared with placebo co‐treatment (low certainty).

1 finding from 1 review

Multiple pregnancy rate · subfertile women with polycystic ovary syndrome

Metformin showed no clear difference in multiple pregnancy rate (per woman) compared with placebo co‐treatment (low certainty).

1 finding from 1 review

Ongoing pregnancy · subfertile women with polycystic ovary syndrome

Metformin may leads to higher ongoing pregnancy rate (per woman) compared with placebo co‐treatment (low certainty).

1 finding from 1 review

Clinical pregnancy rate · subfertile women with polycystic ovary syndrome

Metformin may leads to higher clinical pregnancy rate (per woman) compared with placebo co‐treatment (low certainty).

1 finding from 1 review