Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

319 questions · 326 findings · 34 reviews · Airways

No studies found 21 · 6.4%GRADE not reported 22 · 6.7%Very low 20 · 6.1%Low 81 · 24.8%Moderate 132 · 40.5%High 50 · 15.3%

Tiotropium vs long‐acting beta‐agonists

Hospitalisations, number of participants with 1 or more exacerbations · patients with stable chronic obstructive pulmonary disease and > 10 pack years smoking history

Tiotropium probably leads to lower patients with 1 or more exacerbations compared with long‐acting beta‐agonists (moderate certainty).

1 finding from 1 review

Tiotropium vs long‐acting beta‐agonists

Mortality (all‐cause) · patients with stable chronic obstructive pulmonary disease and > 10 pack years smoking history

It is very uncertain whether tiotropium changes mortality (all‐cause) compared with long‐acting beta‐agonists (very low certainty).

1 finding from 1 review

Intervention not reported

Number of participants with increased cough · patients with prolonged non‐specific cough in children

The intervention showed no clear difference in number of participants with increased cough (moderate certainty).

1 finding from 1 review

Indacaterol vs long‐acting beta2‐agonist alone

Exacerbations (number of people experiencing ≥ 1 exacerbations) · patients with chronic obstructive pulmonary disease

Indacaterol showed no clear difference in number of participants experiencing at least 1 exacerbation… compared with twice‐daily long‐acting beta2‐agonists (moderate certainty).

1 finding from 1 review

Indacaterol vs long‐acting beta2‐agonist alone

Serious adverse events Adverse events · patients with chronic obstructive pulmonary disease

Indacaterol showed no clear difference in serious adverse events Adverse events compared with twice‐daily long‐acting beta2‐agonists (moderate certainty).

1 finding from 1 review

Indacaterol vs long‐acting beta2‐agonist alone

Mortality Deaths · patients with chronic obstructive pulmonary disease

Indacaterol showed no clear difference in mortality Deaths compared with twice‐daily long‐acting beta2‐agonists (moderate certainty).

1 finding from 1 review

Indacaterol vs long‐acting beta2‐agonist alone

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

Indacaterol showed no clear difference in number of participants with a clinically significant improvement in… compared with twice‐daily long‐acting beta2‐agonists (moderate certainty).

1 finding from 1 review

Indacaterol vs long‐acting beta2‐agonist alone

Improvement in symptoms: number of participants with clinically significant improvement: using TDI focal score (≥ 1 unit) · patients with chronic obstructive pulmonary disease

Indacaterol showed no clear difference in number of participants with a clinically significant improvement in… compared with twice‐daily long‐acting beta2‐agonists (moderate certainty).

1 finding from 1 review

Intervention not reported

Quality of life (dyspnoea) Measured on the CRQ, the output is a number from 0 to 7, where higher on the scale is better. MID is 0.5. · adults with COPD who had exertional dyspnoea but did not fulfil the criteria for long‐term oxygen treatment

The intervention probably leads to higher quality of life (dyspnoea) Measured on the CRQ, the output is a… (moderate certainty).

1 finding from 1 review

Intervention not reported

Clinical failure—primary outcome (by intention‐to‐treat analysis) · children with chronic cough of unknown origin lasting longer than 4 weeks

The intervention probably leads to lower clinical failure—primary outcome (by intention‐to‐treat analysis) (moderate certainty).

1 finding from 1 review

Intervention not reported

PC‐QOL mean score at 6 weeks PC‐QOL is a 27‐item questionnaire. Each question has a 7‐point score ranging from 1 (worst quality of life) to 7 (best quality of life). Scores for each item were added and the average taken · children with chronic cough of unknown origin lasting longer than 4 weeks

The intervention probably leads to higher PC‐QOL mean score at 6 weeks PC‐QOL is a 27‐item questionnaire. Each… (moderate certainty).

1 finding from 1 review

Intervention not reported

Duration of cough post randomisation · children with chronic cough of unknown origin lasting longer than 4 weeks

The intervention showed no clear difference in duration of cough post randomisation (moderate certainty).

1 finding from 1 review

Intervention not reported

Proportion of adverse events experienced · children with chronic cough of unknown origin lasting longer than 4 weeks
1 finding from 1 review