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%

Combined oral contraceptive pill vs any other medical treatment

Self‐reported pain (dysmenorrhoea) at the end of treatment (continuous data): dysmenorrhoea at 6 months' · women with endometriosis
2 findings from 1 review

Combined oral contraceptive pill vs any other medical treatment

Self‐reported pain (dysmenorrhoea) (dichotomous data) ‐ reduction of pain to zero at 6 months' · women with endometriosis

It is very uncertain whether combined oral contraceptive pill changes self‐reported pain (dysmenorrhoea) (dichotomous data): reduction of… compared with other medical treatment (very low certainty).

2 findings from 1 review