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Evidence found and GRADE certainty

31 questions · 33 findings · 7 reviews · Gynaecology and Fertility

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No studies found 5 · 15.2%GRADE not reported 0 · 0%Very low 5 · 15.2%Low 15 · 45.5%Moderate 8 · 24.2%High 0 · 0%

Nifedipine vs placebo

Requirement for additional medication · primary dysmenorrhoea

It is very uncertain whether nifedipine changes requirement for additional medication compared with placebo (very low certainty).

1 finding from 1 review

Exercise vs NSAIDs

Use of rescue medication · young women with suspected primary dysmenorrhoea

It is very uncertain whether exercise changes use of rescue analgesic medication assessed by: number of women who… compared with non‐steroidal anti‐inflammatory drugs (NSAIDs) (very low certainty).

1 finding from 1 review

Exercise vs no treatment

Use of rescue analgesic medication ‐ not reported · young women with suspected primary dysmenorrhoea

The review found no eligible studies for this question.

1 finding from 1 review

Surgery vs oral medication

Control of bleeding (cure or improvement to acceptable level) At 2 years · women with heavy menstrual bleeding

Surgery probably leads to higher control of bleeding (cure or improvement to acceptable level) At 4… compared with oral medication (moderate certainty).

3 findings from 1 review

Surgery vs oral medication

Overall satisfaction with treatment At 5 years · women with heavy menstrual bleeding

It is very uncertain whether surgery changes overall satisfaction with treatment At 5 years compared with oral medication (very low certainty).

1 finding from 1 review