Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

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%

Day 3 vs Day 2 embryo transfer following IVF or ICSI

Complications during pregnancy per woman per couple ‐ ectopic pregnancy4 · Women undergoing in vitro fertilisation or intracytoplasmic sperm injection

Day 3 showed no clear difference in ectopic pregnancy rate per woman compared with day 2 embryo transfer following IVF or ICSI (low certainty).

1 finding from 1 review

Anticipated high responders: higher vs lower dose of FSH

IU vs 100 IU · women undergoing IVF/ICSI who are anticipated to have a hyper‐response to stimulation based on at least one ORT measure

Anticipated high responders: higher showed no clear difference in IU vs 100 IU compared with lower dose of FSH (low certainty).

1 finding from 1 review

Anticipated normal responders: higher vs lower dose of FSH

IU vs 100 IU · women undergoing IVF/ICSI who are anticipated to have a normal response to stimulation based on at least one ORT measure

Anticipated normal responders: higher showed no clear difference in IU vs 100 IU compared with lower dose of FSH (low certainty).

1 finding from 1 review

Anticipated normal responders: higher vs lower dose of FSH

225/200 IU vs 150 IU · women undergoing IVF/ICSI who are anticipated to have a normal response to stimulation based on at least one ORT measure

Anticipated normal responders: higher showed no clear difference in 225/200 IU vs 150 IU compared with lower dose of FSH (low certainty).

1 finding from 1 review

Anticipated normal responders: higher vs lower dose of FSH

IU vs 225 IU · women undergoing IVF/ICSI who are anticipated to have a normal response to stimulation based on at least one ORT measure

Anticipated normal responders: higher showed no clear difference in IU vs 225 IU compared with lower dose of FSH (low certainty).

1 finding from 1 review

Letrozole with or without adjuncts vs SERMs with or without adjuncts followed by timed intercourse

Live birth rate · infertile women with polycystic ovary syndrome

Letrozole with or without adjuncts leads to higher live birth rate compared with SERMs with or without adjuncts followed by timed intercourse (high certainty).

1 finding from 1 review