Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

4,072 questions · 4,237 findings · 447 reviews · Headline outcomes only

No studies found 946 · 22.3%GRADE not reported 257 · 6.1%Very low 1,121 · 26.5%Low 1,207 · 28.5%Moderate 568 · 13.4%High 138 · 3.3%

Intervention not reported

Postoperative nausea (24 hours) · adult participants undergoing knee surgery (arthroscopic knee surgery or total knee replacement)

The intervention showed no clear difference in postoperative nausea (24 hours) (low certainty).

1 finding from 1 review