Clinical pregnancy rate per woman ‐ long protocol GnRH‐agonist · women with polycystic ovary syndrome
Metformin may leads to higher clinical pregnancy rate per woman ‐ long protocol GnRH‐agonist compared with placebo or no treatment (low certainty).
1 finding from 1 review
Clinical pregnancy rate · women with polycystic ovary syndrome
It is very uncertain whether metformin changes clinical pregnancy rate per woman ‐ short protocol GnRH‐antagonist compared with placebo or no treatment (very low certainty).
Miscarriage · women with polycystic ovary syndrome
Metformin showed no clear difference in miscarriage rate per woman compared with placebo or no treatment (low certainty).
Side effects per woman · women with polycystic ovary syndrome
Metformin may leads to higher side effects per woman compared with placebo or no treatment (low certainty).
1 finding from 1 review
Live birth rate · women undergoing embryo transfer with frozen embryos or embryos derived from donor oocytes
It is very uncertain whether stimulated cycle changes live birth rate compared with programmed (very low certainty).
1 finding from 1 review
Miscarriage · women undergoing embryo transfer with frozen embryos or embryos derived from donor oocytes
It is very uncertain whether natural cycle changes miscarriage rate compared with programmed cycle (very low certainty).
1 finding from 1 review
Multiple pregnancy rate · women undergoing embryo transfer with frozen embryos or embryos derived from donor oocytes
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Cycle cancellation rate · women undergoing embryo transfer with frozen embryos or embryos derived from donor oocytes
Natural cycle probably leads to lower cycle cancellation rate compared with programmed cycle (moderate certainty).
1 finding from 1 review
Endometrial thickness (mm) · women undergoing embryo transfer with frozen embryos or embryos derived from donor oocytes
1 finding from 1 review
Other adverse effects · women undergoing embryo transfer with frozen embryos or embryos derived from donor oocytes
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Live birth rate · women undergoing embryo transfer with frozen embryos or embryos derived from donor oocytes
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Clinical pregnancy rate · women undergoing embryo transfer with frozen embryos or embryos derived from donor oocytes
Transdermal oestrogens showed no clear difference in clinical pregnancy rate compared with oral oestrogens (low certainty).
1 finding from 1 review
Miscarriage · women undergoing embryo transfer with frozen embryos or embryos derived from donor oocytes
Transdermal oestrogens showed no clear difference in miscarriage rate compared with oral oestrogens (low certainty).
1 finding from 1 review
Multiple pregnancy rate · women undergoing embryo transfer with frozen embryos or embryos derived from donor oocytes
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Cycle cancellation rate · women undergoing embryo transfer with frozen embryos or embryos derived from donor oocytes
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Clinical pregnancy rate · women undergoing embryo transfer with frozen embryos or embryos derived from donor oocytes
Stimulated cycle may leads to higher clinical pregnancy rate compared with programmed (low certainty).
1 finding from 1 review
Endometrial thickness (mm) · women undergoing embryo transfer with frozen embryos or embryos derived from donor oocytes
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Other adverse effects · women undergoing embryo transfer with frozen embryos or embryos derived from donor oocytes
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Live birth rate · women undergoing embryo transfer with frozen embryos or embryos derived from donor oocytes
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Clinical pregnancy rate · women undergoing embryo transfer with frozen embryos or embryos derived from donor oocytes
Starting administration of the progestogen earlier probably leads to higher clinical pregnancy rate compared with starting administration of the progestogen later (moderate certainty).
1 finding from 1 review