Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

77 questions · 79 findings · 25 reviews · Airways

No studies found 0 · 0%GRADE not reported 3 · 3.8%Very low 8 · 10.1%Low 37 · 46.8%Moderate 20 · 25.3%High 11 · 13.9%

Intervention not reported

Health‐related quality of life (respiratory specific) St George's Respiratory Questionnaire (SGRQ; total score) Scale from 0‐100 Lower value post intervention is favourable, indicating improvement in health‐related quality of life · people with stable COPD
1 finding from 1 review