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What do systematic reviews say?

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Evidence found and GRADE certainty

5 questions · 8 findings · 1 reviews

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No studies found 2 · 25%GRADE not reported 0 · 0%Very low 5 · 62.5%Low 0 · 0%Moderate 1 · 12.5%High 0 · 0%

Oestrogen vs no pretreatment

Live birth or ongoing pregnancy · ovarian stimulation protocols for women undergoing ART

Oestrogen showed no clear difference in live birth or ongoing pregnancy (Oestr + Ant vs Ant) compared with no pretreatment (moderate certainty).

2 findings from 1 review

Oestrogen vs no pretreatment

Pregnancy loss · ovarian stimulation protocols for women undergoing ART

It is very uncertain whether oestrogen changes pregnancy loss (Oestr + Ant vs Ant) compared with no pretreatment (very low certainty).

2 findings from 1 review

Oestrogen vs no pretreatment

Multiple pregnancy rate · ovarian stimulation protocols for women undergoing ART

The review found no eligible studies for this question.

2 findings from 1 review