Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

116 questions · 120 findings · 11 reviews

No studies found 48 · 40%GRADE not reported 1 · 0.8%Very low 26 · 21.7%Low 28 · 23.3%Moderate 16 · 13.3%High 1 · 0.8%

Oestrogen vs no pretreatment

Pregnancy loss · ovarian stimulation protocols for women undergoing ART

It is very uncertain whether oestrogen changes pregnancy loss (Oestr + Ant vs Ant) compared with no pretreatment (very low certainty).

2 findings from 1 review

Oestrogen vs no pretreatment

Multiple pregnancy rate · ovarian stimulation protocols for women undergoing ART

The review found no eligible studies for this question.

2 findings from 1 review

Oestrogen vs placebo or no treatment

Incontinence not improved (generic inverse variance) (women's observations) ‐ Systemic administration (any incontinence) · patients with urinary incontinence in post‐menopausal women

Oestrogen may leads to higher incontinence not improved (generic inverse variance) (women's… compared with placebo or no treatment (low certainty).

1 finding from 1 review

Oestrogen vs placebo or no treatment

Incontinence not improved (generic inverse variance) (women's observations) ‐ Local administration (any incontinence) · patients with urinary incontinence in post‐menopausal women

It is very uncertain whether oestrogen changes incontinence not improved (generic inverse variance) (women's… compared with placebo or no treatment (very low certainty).

1 finding from 1 review

Oestrogen vs placebo or no treatment

Number of women with urgency ‐ Systemic administration · patients with urinary incontinence in post‐menopausal women

Oestrogen showed no clear difference in number of women with urgency ‐ Systemic administration compared with placebo or no treatment (moderate certainty).

1 finding from 1 review

Antioestrogen vs antioestrogen

Clinical pregnancy rate · ovulation induction in polycystic ovarian syndrome

It is very uncertain whether antioestrogen changes clomiphene citrate plus tamoxifen versus clomiphene citrate ‐… compared with antioestrogen (very low certainty).

2 findings from 1 review