It is very uncertain whether IVF changes miscarriage rate per woman randomised compared with unstimulated IUI (very low certainty).
It is very uncertain whether IVF changes miscarriage rate per woman randomised compared with IUI + ovarian stimulation with gonadotropins or CC (very low certainty).
The review found no eligible studies for this question.
ART with seminal plasma showed no clear difference in miscarriage compared with standard ART (IVF, ICSI, and frozen embryo transfer) (low certainty).
Day 3 showed no clear difference in miscarriage rate per woman compared with day 2 embryo transfer following IVF or ICSI (moderate certainty).
Summary of findings table ‐ ICSI showed no clear difference in miscarriage compared with c‐IVF (moderate certainty).
The intervention showed no clear difference in miscarriage (moderate certainty).
The intervention may leads to lower miscarriage (low certainty).
The review found no eligible studies for this question.
It is very uncertain whether transvaginal aspiration of hydrosalpingeal fluid changes miscarriage rate compared with laparoscopic salpingectomy (very low certainty).
The review found no eligible studies for this question.
Repeated single embryo transfer (mixed policies) showed no clear difference in miscarriage rate compared with multiple embryo transfer (low certainty).
Single showed no clear difference in miscarriage rate compared with multiple embryo transfer (low certainty).
It is very uncertain whether long‐term GnRH agonist therapy changes miscarriage rate compared with no additional therapy (very low certainty).
Recombinant luteinizing hormone (rLH) combined with recombinant… showed no clear difference in miscarriage rate compared with rFSH alone (moderate certainty).
It is very uncertain whether 37°C changes miscarriage compared with any lower temperature (very low certainty).
Screening hysteroscopy showed no clear difference in miscarriage compared with no hysteroscopy (low certainty).
The review found no eligible studies for this question.
It is very uncertain whether glucocorticoid supplementation changes miscarriage rate per woman compared with placebo (very low certainty).
RhCG showed no clear difference in miscarriage rate per woman compared with uhCG (low certainty).