The review found no eligible studies for this question.
Long protocol (continued same showed no clear difference in clinical pregnancies per woman randomised compared with reduced dose GnRHa) (low certainty).
Long protocol (GnRHa until HCG) showed no clear difference in live birth and ongoing pregnancies per woman randomised compared with long protocol (extend GnRHa 12 days after HCG) (low certainty).
Long protocol (GnRHa until HCG) showed no clear difference in clinical pregnancies per woman randomised compared with long protocol (extend GnRHa 12 days after HCG) (low certainty).
Long protocol: administration of GnRHa for two showed no clear difference in live birth and ongoing pregnancies per woman randomised compared with three weeks before stimulation (low certainty).
Long protocol: administration of GnRHa for two showed no clear difference in clinical pregnancies per woman randomised compared with three weeks before stimulation (low certainty).
The review found no eligible studies for this question.
Short protocol showed no clear difference in clinical pregnancies per woman randomised compared with stop short protocol (low certainty).
Long protocol probably leads to higher clinical pregnancies per woman randomised compared with short protocol (moderate certainty).
Long protocol showed no clear difference in live birth and ongoing pregnancies per woman randomised compared with ultrashort protocol (low certainty).
Long protocol showed no clear difference in clinical pregnancies per woman randomised compared with ultrashort protocol (low certainty).
The review found no eligible studies for this question.
It is very uncertain whether short changes clinical pregnancies per woman randomised compared with ultrashort protocol (very low certainty).
Long luteal phase protocol showed no clear difference in live birth and ongoing pregnancies per woman randomised compared with long follicular phase protocol (low certainty).
Long luteal phase protocol showed no clear difference in clinical pregnancies per woman randomised compared with long follicular phase protocol (low certainty).
Long protocol continued GnRH agonist showed no clear difference in live birth and ongoing pregnancies Number of live births or ongoing… compared with long protocol stop GnRH agonist (low certainty).
Vitrification showed no clear difference in ongoing pregnancy rate compared with slow freezing (low certainty).
Vitrification probably leads to higher clinical pregnancy rate compared with slow freezing (moderate certainty).
Cryopreservation showed no clear difference in moderate and or severe OHSS compared with fresh embryos transfer (low certainty).
Cryopreservation showed no clear difference in number of livebirths (livebirth rate) compared with fresh embryos transfer (low certainty).