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What do systematic reviews say?

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Evidence found and GRADE certainty

182 questions · 183 findings · 59 reviews

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No studies found 71 · 38.8%GRADE not reported 11 · 6%Very low 57 · 31.1%Low 24 · 13.1%Moderate 15 · 8.2%High 5 · 2.7%

Multi‐component intervention vs control

Adverse events: number of people experiencing adverse events (all cause or COPD‐related), serious adverse events, mortality · COPD

Multi‐component intervention showed no clear difference in adverse events: number of people experiencing adverse events (all… compared with control (low certainty).

1 finding from 1 review

Single component intervention vs control

Adverse events: number of people experiencing adverse events (all cause or COPD‐related), serious adverse events, mortality · COPD

It is very uncertain whether single component intervention changes adverse events: number of people experiencing adverse events (all… compared with control (very low certainty).

1 finding from 1 review