Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

23 questions · 26 findings · 3 reviews

No studies found 11 · 42.3%GRADE not reported 0 · 0%Very low 8 · 30.8%Low 2 · 7.7%Moderate 5 · 19.2%High 0 · 0%

Beta‐2 agonists vs placebo

Cough · people with acute cough or a clinical diagnosis of acute bronchitis
4 findings from 1 review
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Short‐acting inhaled beta‐2 agonists vs placebo

Number of exacerbations(as reported by number of hospitalisations and number of courses and days on antibiotics) · adults and children with cystic fibrosis

It is very uncertain whether short‐acting inhaled beta‐2 agonists changes number of exacerbations(as reported by number of hospitalisations… compared with placebo (very low certainty).

1 finding from 1 review

Short‐acting inhaled beta‐2 agonists vs placebo

Participant‐reported symptom score: cough, wheeze and exercise tolerance · adults and children with cystic fibrosis

It is very uncertain whether short‐acting inhaled beta‐2 agonists changes participant‐reported symptom score: cough, wheeze and exercise… compared with placebo (very low certainty).

1 finding from 1 review