Findings

What do systematic reviews say?

121 questions · 128 findings · 51 reviews · Gynaecology and Fertility

No studies found 32 · 25%GRADE not reported 0 · 0%Very low 40 · 31.3%Low 45 · 35.2%Moderate 10 · 7.8%High 1 · 0.8%

Miscarriage · transfer following in vitro fertilisation or intracytoplasmic sperm injection

Single showed no clear difference in miscarriage rate compared with multiple embryo transfer (low certainty).

1 finding from 1 review

Number of embryos for transfer following in vitro fertilisation or intra‐cytoplasmic sperm injection 2020 · Cochrane Headline outcomes only
odds ratio 0.96 [0.66, 1.42]
7 studies · 1560 participants
Low