Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

324 questions · 328 findings · 34 reviews · Headline outcomes only

No studies found 82 · 25%GRADE not reported 8 · 2.4%Very low 75 · 22.9%Low 105 · 32%Moderate 45 · 13.7%High 13 · 4%

Intervention not reported

Adverse events (Re‐operation for bleeding (reoperation for major bleeding within 30 days (yes/no))) · adults undergoing surgery

It is very uncertain whether the intervention changes adverse events (Re‐operation for bleeding (reoperation for major… (very low certainty).

1 finding from 1 review