Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

299 questions · 299 findings · 15 reviews · Airways

No studies found 18 · 6%GRADE not reported 23 · 7.7%Very low 5 · 1.7%Low 56 · 18.7%Moderate 146 · 48.8%High 51 · 17.1%

Fixed‐dose combination aclidinium/formoterol vs formoterol

Exacerbations requiring steroids or antibiotics or both: number of participants · patients with chronic obstructive pulmonary disease

Fixed‐dose combination aclidinium/formoterol leads to lower exacerbations requiring steroids or antibiotics or both: number of… compared with formoterol (high certainty).

1 finding from 1 review

Fixed‐dose combination aclidinium/formoterol vs formoterol

Quality of life: number of participants with clinically significant improvement (≥ 4 units) in SGRQ total score · patients with chronic obstructive pulmonary disease

Fixed‐dose combination aclidinium/formoterol showed no clear difference in quality of life: number of participants with clinically significant… compared with formoterol (low certainty).

1 finding from 1 review

Combination of anticholinergics + beta2‐agonists vs B2‐agonists alone

Asthma clinical scores · children hospitalised with an acute asthma exacerbation

Combination of anticholinergics + beta2‐agonists showed no clear difference in asthma clinical scores compared with beta2‐agonists alone (moderate certainty).

1 finding from 1 review

Combination of anticholinergics + beta2‐agonists vs B2‐agonists alone

Overall withdrawals · children hospitalised with an acute asthma exacerbation

Combination of anticholinergics + beta2‐agonists showed no clear difference in overall withdrawals compared with beta2‐agonists alone (moderate certainty).

1 finding from 1 review

Triple therapy vs LABA/LAMA combination

Respiratory HRQoL measured by SGRQ, ≥ 4‐point decrease from baseline (lower scores indicate better HRQoL) · stable COPD

Triple therapy leads to higher respiratory HRQoL measured by SGRQ, ≥ 4‐point decrease from baseline… compared with LABA/LAMA combination (high certainty).

1 finding from 1 review