Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

1,773 questions · 1,817 findings · 212 reviews · Headline outcomes only

No studies found 383 · 21.1%GRADE not reported 192 · 10.6%Very low 472 · 26%Low 444 · 24.4%Moderate 228 · 12.5%High 98 · 5.4%

Any anti‐adhesion therapy vs anti‐adhesion therapy B following operative hysteroscopy

Live birth · women treated by operative hysteroscopy for uterine pathology

Any anti‐adhesion therapy A showed no clear difference in live birth a compared with anti‐adhesion therapy B following operative hysteroscopy (low certainty).

1 finding from 1 review

Continuous chest compression alone vs interrupted chest compression plus artificial ventilation

Survival to hospital discharge · Patients with non‐trauma related out‐of‐hospital cardiac arrest

Continuous chest compression alone leads to higher survival to hospital discharge compared with interrupted chest compression plus artificial ventilation (high certainty).

1 finding from 1 review

Continuous chest compression alone vs interrupted chest compression plus artificial ventilation

Survival to hospital admission · Patients with non‐trauma related out‐of‐hospital cardiac arrest

Continuous chest compression alone showed no clear difference in survival to hospital admission compared with interrupted chest compression plus artificial ventilation (moderate certainty).

1 finding from 1 review

Continuous chest compression alone vs interrupted chest compression plus artificial ventilation

Neurological function at hospital discharge, measured by cerebral performance category (CPC) · Patients with non‐trauma related out‐of‐hospital cardiac arrest

Continuous chest compression alone showed no clear difference in neurological outcomes at hospital discharge Measured as 'good' or… compared with interrupted chest compression plus artificial ventilation (moderate certainty).

1 finding from 1 review