Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

2,510 questions · 2,653 findings · 194 reviews · Gynaecology and Fertility

No studies found 531 · 20%GRADE not reported 76 · 2.9%Very low 826 · 31.1%Low 855 · 32.2%Moderate 341 · 12.9%High 24 · 0.9%

hCG vs no ovulation trigger

Live birth rate Live fetus delivered beyond 20 completed weeks' gestation · women with anovulatory infertility undergoing ovulation induction with clomiphene citrate

Human chorionic gonadotrophin showed no clear difference in live birth rate Live fetus delivered beyond 20 completed weeks'… compared with no ovulation trigger (low certainty).

1 finding from 1 review

hCG vs no ovulation trigger

Ovulation rate Ultrasound evidence of collapsed follicle or mid‐luteal serum progesterone < 10 ng/mL · women with anovulatory infertility undergoing ovulation induction with clomiphene citrate

Human chorionic gonadotrophin showed no clear difference in ovulation rate Ultrasound evidence of collapsed follicle or… compared with no ovulation trigger (low certainty).

1 finding from 1 review

hCG vs no ovulation trigger

Miscarriage per clinical pregnancy · women with anovulatory infertility undergoing ovulation induction with clomiphene citrate

Human chorionic gonadotrophin showed no clear difference in miscarriage rate per clinical pregnancy Spontaneous pregnancy loss… compared with no ovulation trigger (low certainty).

1 finding from 1 review

Short interval vs long interval

Pregnancy rate · women trying to conceive by intrauterine insemination

Short interval may leads to lower pregnancy rate per couple ‐ 24 hours versus 34 to 36 hours compared with long interval (low certainty).

3 findings from 1 review

Short interval vs long interval

Miscarriage · women trying to conceive by intrauterine insemination

It is very uncertain whether short interval changes miscarriage rate per pregnancy ‐ 24 hours versus 34 to 36 hours compared with long interval (very low certainty).

3 findings from 1 review