Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

516 questions · 545 findings · 51 reviews · Gynaecology and Fertility

No studies found 129 · 23.7%GRADE not reported 5 · 0.9%Very low 196 · 36%Low 162 · 29.7%Moderate 51 · 9.4%High 2 · 0.4%

Oral vs vaginal administration of oestradiol and dydrogesterone

Endometrial thickness (mm) · women with premature ovarian insufficiency (POI) awaiting oocyte donation
2 findings from 1 review

Starting administration of the progestogen earlier vs starting administration of the progestogen later

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

Pharmacological interventions vs pharmacological intervention

Adverse events ‐ Metformin plus liraglutide vs metformin Nausea Diarrhoea Headache · obese women with subfertility

It is very uncertain whether pharmacological intervention changes adverse events ‐ Metformin plus liraglutide vs metformin Nausea… compared with pharmacological intervention (very low certainty).

1 finding from 1 review

Pharmacological interventions vs pharmacological intervention

Clinical pregnancyMetformin plus liraglutide vs metformin Met + CC + L‐carnitine vs Met + CC + placebo · obese women with subfertility

It is very uncertain whether pharmacological intervention changes clinical pregnancyMetformin plus liraglutide vs metformin Met + CC +… compared with pharmacological intervention (very low certainty).

1 finding from 1 review

Pharmacological interventions vs pharmacological intervention

MiscarriageMet + CC + L‐carnitine vs Met + CC + placebo · obese women with subfertility

It is very uncertain whether pharmacological intervention changes miscarriageMet + CC + L‐carnitine vs Met + CC + placebo compared with pharmacological intervention (very low certainty).

1 finding from 1 review

Pharmacological interventions vs pharmacological intervention

Weight ‐ BMI changeMetformin plus liraglutide vs metformin Met + CC + L‐carnitine vs Met + CC + placebo Weight changeDexfenfluramine vs placebo Weight ‐ body fatMetformin plus liraglutide vs metformin · obese women with subfertility
1 finding from 1 review