Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

557 questions · 600 findings · 75 reviews

No studies found 188 · 31.3%GRADE not reported 62 · 10.3%Very low 154 · 25.7%Low 122 · 20.3%Moderate 62 · 10.3%High 12 · 2%

Surgery vs no surgery

Proportion of eyes with gain in VA by 0.3 logMAR or greater · people with epiretinal membrane

It is very uncertain whether surgery changes proportion of eyes with gain in VA by 0.3 logMAR or greater compared with no surgery (very low certainty).

1 finding from 1 review

Surgery vs no surgery

Proportion of eyes with loss in VA by 0.3 logMAR or greater · people with epiretinal membrane

Surgery may leads to lower proportion of eyes with loss in VA by 0.3 logMAR or greater compared with no surgery (low certainty).

1 finding from 1 review

Surgery vs non‐surgical treatment

Global assessment of treatment success · people with full‐thickness rotator cuff tears

Surgery showed no clear difference in participant‐rated global assessment of treatment success at 12 months compared with non‐operative treatment (low certainty).

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 LNG‐IUS

Satisfaction rate: surgery versus LNG‐IUS Endometrial ablation versus LNG‐IUS At 2 years · women with heavy menstrual bleeding

Surgery showed no clear difference in satisfaction rate: surgery versus LNG‐IUS Endometrial ablation… compared with LNG‐IUS (low certainty).

1 finding from 1 review