Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

30 questions · 31 findings · 16 reviews · Airways

No studies found 1 · 3.2%GRADE not reported 1 · 3.2%Very low 2 · 6.5%Low 9 · 29%Moderate 8 · 25.8%High 10 · 32.3%

Long‐acting beta2‐agonists vs placebo

Quality of life St George's Respiratory Questionnaire (SGRQ) score · patients with chronic obstructive pulmonary disease

Long‐acting beta2‐agonists showed no clear difference in quality of life1 St George's Respiratory Questionnaire (SGRQ); lower… compared with placebo (moderate certainty).

1 finding from 1 review

Summary of findings ‐ Inhaled mannitol vs placebo

SGRQ Total SGRQ (Total) Score. Scale from: 0 to 100. Lower score indicates better quality of life. · people with bronchiectasis

Inhaled mannitol showed no clear difference in health‐related quality of life measured on the SGRQ Scale from 0 to… compared with placebo (moderate certainty).

1 finding from 1 review