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Evidence found and GRADE certainty

124 questions · 128 findings · 65 reviews

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No studies found 23 · 18%GRADE not reported 6 · 4.7%Very low 47 · 36.7%Low 35 · 27.3%Moderate 14 · 10.9%High 3 · 2.3%

Oxygen vs air

All‐cause mortality in hospital for all participants (including those without confirmed AMI) · patients with acute myocardial infarction

It is very uncertain whether oxygen changes all‐cause mortality in hospital for all participants (including… compared with air (very low certainty).

1 finding from 1 review

Intervention not reported

All‐cause mortality a. Intervention vs placebo [30 weeks to 4.75 years] b. Intervention vs insulin [4.75 years to 10.0 years] · participants with type 2 diabetes mellitus

The intervention showed no clear difference in all‐cause mortality a. Intervention vs placebo [30 weeks to 4.75… (low certainty).

1 finding from 1 review

Oxygen vs air

All‐cause mortality in hospital for all participants (including those without confirmed AMI) trials done in the revascularisation era · patients with acute myocardial infarction

Oxygen showed no clear difference in all‐cause mortality in hospital for all participants (including… compared with air (low certainty).

1 finding from 1 review

Intervention not reported

All‐cause mortality a. Intervention vs metformin [a. 24 weeks to 4 years] b. Intervention vs thiazolidinediones [b. 24 weeks to 4 years] c. Intervention vs insulin [c. 9 months to 10 years] d. Intervention vs incretin‐based control [d. 52 weeks to... · participants with type 2 diabetes mellitus

The intervention showed no clear difference in all‐cause mortality a. Intervention vs metformin [a. 24 weeks to 4… (low certainty).

1 finding from 1 review