Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

388 questions · 412 findings · 37 reviews · Airways · Headline outcomes only

No studies found 61 · 14.8%GRADE not reported 42 · 10.2%Very low 68 · 16.5%Low 114 · 27.7%Moderate 100 · 24.3%High 27 · 6.6%

Intervention vs usual care

Exacerbations (number of people experiencing ≥ 1 exacerbations) · COPD and at least one other long‐term condition

It is very uncertain whether intervention changes exacerbations ‐ number of people experiencing one or more  compared with usual care (very low certainty).

1 finding from 1 review