Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

508 questions · 529 findings · 58 reviews

No studies found 191 · 36.1%GRADE not reported 49 · 9.3%Very low 143 · 27%Low 92 · 17.4%Moderate 51 · 9.6%High 3 · 0.6%

Saline vs carbon dioxide

Adverse events and complications · women undergoing outpatient hysteroscopy

Saline probably leads to lower adverse events and complications compared with carbon dioxide (moderate certainty).

1 finding from 1 review