It is very uncertain whether mechanical pressure changes clinical pregnancy rate per randomised woman compared with usual care (very low certainty).
It is very uncertain whether analysis 7 ‐ Collagen membrane with polyethylene glycol and glycerol changes clinical pregnancy rate compared with ringer's lactate (very low certainty).
Vitrification probably leads to higher clinical pregnancy rate compared with slow freezing (moderate certainty).
Embryo culture with low oxygen concentration probably leads to higher clinical pregnancy rate compared with embryo culture with atmospheric oxygen concentration (moderate certainty).
Dopamine agonist showed no clear difference in clinical pregnancy rate compared with other active intervention (moderate certainty).
Dopamine agonist showed no clear difference in clinical pregnancy rate compared with placebo/no intervention (low certainty).
Dopamine agonist plus co‐intervention showed no clear difference in clinical pregnancy rate compared with co‐intervention (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.
Gel agents showed no clear difference in clinical pregnancy rate compared with no gel agents (or placebo) (low certainty).
The review found no eligible studies for this question.
Steroids (any route) showed no clear difference in clinical pregnancy rate compared with no steroids (or placebo) (low certainty).
Hydroflotation agents showed no clear difference in clinical pregnancy rate compared with no hydroflotation agents (or placebo) (moderate certainty).
Transdermal oestrogens showed no clear difference in clinical pregnancy rate compared with oral oestrogens (low certainty).
Stimulated cycle may leads to higher clinical pregnancy rate compared with programmed (low certainty).
Starting administration of the progestogen earlier probably leads to higher clinical pregnancy rate compared with starting administration of the progestogen later (moderate certainty).
GnRH agonists showed no clear difference in clinical pregnancy rate compared with control (low certainty).
It is very uncertain whether among different GnRH agonists changes clinical pregnancy rate compared with placebo (very low certainty).
GnRH agonists probably leads to lower clinical pregnancy rate compared with gnRH antagonists (moderate certainty).