Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

2,510 questions · 2,653 findings · 194 reviews · Gynaecology and Fertility

No studies found 531 · 20%GRADE not reported 76 · 2.9%Very low 826 · 31.1%Low 855 · 32.2%Moderate 341 · 12.9%High 24 · 0.9%

Second‐generation endometrial ablation vs first‐generation endometrial ablation

Proportion given local anaesthesia (%) · heavy menstrual bleeding

It is very uncertain whether overall analyses: second‐generation endometrial ablation changes proportion given local anaesthesia (%) compared with first‐generation endometrial ablation (very low certainty).

1 finding from 1 review

Second‐generation endometrial ablation vs first‐generation endometrial ablation

Complication rate ‐ perforation · heavy menstrual bleeding

Overall analyses: second‐generation endometrial ablation showed no clear difference in complication rate ‐ perforation compared with first‐generation endometrial ablation (low certainty).

1 finding from 1 review

Second‐generation endometrial ablation vs first‐generation endometrial ablation

Requirement for additional (surgical) interventions · heavy menstrual bleeding

Overall analyses: second‐generation endometrial ablation showed no clear difference in requirement for additional surgery compared with first‐generation endometrial ablation (low certainty).

1 finding from 1 review

Exercise vs no treatment

Patient‐reported pain intensity or pain relief (VAS, NRS or categorical scale) · young women with suspected primary dysmenorrhoea
1 finding from 1 review

Exercise vs NSAIDs

Overall menstrual symptoms ‐ not reported · young women with suspected primary dysmenorrhoea

The review found no eligible studies for this question.

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 NSAIDs

Restriction of daily life activities ‐ not reported · young women with suspected primary dysmenorrhoea

The review found no eligible studies for this question.

1 finding from 1 review

Exercise vs NSAIDs

Time off school or work · young women with suspected primary dysmenorrhoea

It is very uncertain whether exercise changes absence from work or school compared with non‐steroidal anti‐inflammatory drugs (NSAIDs) (very low certainty).

1 finding from 1 review

Exercise vs NSAIDs

Quality of life ‐ not reported · young women with suspected primary dysmenorrhoea

The review found no eligible studies for this question.

1 finding from 1 review

Exercise vs no treatment

Overall menstrual symptoms , measured by the MMDQ at the end of the intervention. Lower scores indicates lower menstrual symptom severity · young women with suspected primary dysmenorrhoea
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

Exercise vs no treatment

Restriction of daily life activities ‐ not reported · young women with suspected primary dysmenorrhoea

The review found no eligible studies for this question.

1 finding from 1 review

Exercise vs no treatment

Time off school or work · young women with suspected primary dysmenorrhoea

The review found no eligible studies for this question.

1 finding from 1 review