Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

1,266 questions · 1,314 findings · 160 reviews · Headline outcomes only

No studies found 309 · 23.5%GRADE not reported 34 · 2.6%Very low 356 · 27.1%Low 393 · 29.9%Moderate 187 · 14.2%High 35 · 2.7%

GnRHa treatment vs placebo or no pretreatment

Operating time · women with uterine fibroids
3 findings from 1 review

GnRHa treatment vs placebo or no pretreatment

Intraoperative blood loss (mL) · women with uterine fibroids
3 findings from 1 review

GnRHa treatment vs placebo or no pretreatment

Blood transfusion · women with uterine fibroids

GnRHa treatment showed no clear difference in blood transfusions compared with no pretreatment or placebo before myomectomy (operative and… (low certainty).

3 findings from 1 review

GnRHa treatment vs placebo or no pretreatment

Overall postoperative morbidity · women with uterine fibroids

GnRHa treatment showed no clear difference in postoperative morbidity compared with no pretreatment or placebo before myomectomy (operative and… (low certainty).

3 findings from 1 review