Findings

What do systematic reviews say?

23 questions · 26 findings · 6 reviews

No studies found 2 · 7.7%GRADE not reported 0 · 0%Very low 16 · 61.5%Low 8 · 30.8%Moderate 0 · 0%High 0 · 0%

Miscarriage per clinical pregnancy · women with gonadotropin plus oral (clomiphene citrate or letrozole) stimulation

Progesterone showed no clear difference in miscarriage rate per clinical pregnancy compared with placebo/no treatment (low certainty).

1 finding from 1 review

Miscarriage per clinical pregnancy · women with oral (clomiphene citrate or letrozole) stimulation

Progesterone showed no clear difference in miscarriage rate per clinical pregnancy compared with placebo/no treatment (low certainty).

1 finding from 1 review

Miscarriage per clinical pregnancy · women with gonadotropin stimulation

Progesterone showed no clear difference in miscarriage rate per clinical pregnancy compared with placebo/no treatment (low certainty).

1 finding from 1 review