Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

232 questions · 237 findings · 121 reviews

No studies found 34 · 14.3%GRADE not reported 13 · 5.5%Very low 82 · 34.6%Low 66 · 27.8%Moderate 30 · 12.7%High 12 · 5.1%

Low tidal volume vs high tidal volume

All‐cause mortality · adults (aged > 16 years) without acute lung injury needing mechanical positive pressure ventilation during their surgery and undergoing…

Low tidal volume showed no clear difference in mortality compared with high tidal volume (low certainty).

1 finding from 1 review

Intervention not reported

Mortality · patients recovering from surgery who otherwise would require acute hospital inpatient care
1 finding from 1 review