Metformin may leads to lower incidence of OHSS per woman compared with placebo or no treatment (low certainty).
Metformin may leads to higher clinical pregnancy rate per woman ‐ long protocol GnRH‐agonist compared with placebo or no treatment (low certainty).
Metformin may leads to higher side effects per woman compared with placebo or no treatment (low certainty).
The review found no eligible studies for this question.
It is very uncertain whether among different GnRH agonists changes clinical pregnancy rate compared with placebo (very low certainty).
It is very uncertain whether among different GnRH agonists changes miscarriage rate compared with placebo (very low certainty).
The review found no eligible studies for this question.
The review found no eligible studies for this question.
The review found no eligible studies for this question.
The review found no eligible studies for this question.
Antioxidant(s) showed no clear difference in adverse events ‐ Miscarriage№ of participants: 3229(24 RCTs) compared with placebo or no treatment/standard treatment (low certainty).
Antioxidant(s) showed no clear difference in adverse events ‐ Multiple pregnancy№ of participants: 1886(9 RCTs) compared with placebo or no treatment/standard treatment (low certainty).
Antioxidant(s) showed no clear difference in adverse events ‐ Gastrointestinal disturbances№ of participants:… compared with placebo or no treatment/standard treatment (low certainty).
Antioxidant(s) showed no clear difference in adverse events ‐ Ectopic pregnancy№ of participants: 404(4 RCTs) compared with placebo or no treatment/standard treatment (low certainty).
It is very uncertain whether G‐CSF changes ongoing pregnancy rate per woman randomised compared with no treatment or placebo (very low certainty).
It is very uncertain whether G‐CSF changes miscarriage rate per woman randomised compared with no treatment or placebo (very low certainty).
It is very uncertain whether G‐CSF changes clinical pregnancy rate per woman randomised compared with no treatment or placebo (very low certainty).
G‐CSF showed no clear difference in clinical pregnancy rate ‐ unselected or unstated IVF number compared with no treatment or placebo (low certainty).
G‐CSF may leads to higher clinical pregnancy rate ‐ 2 or more IVF failures compared with no treatment or placebo (low certainty).
G‐CSF showed no clear difference in clinical pregnancy rate ‐ women with thin endometrium compared with no treatment or placebo (low certainty).