Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

2,234 questions · 2,325 findings · 216 reviews · Airways

No studies found 249 · 10.7%GRADE not reported 107 · 4.6%Very low 276 · 11.9%Low 751 · 32.3%Moderate 718 · 30.9%High 224 · 9.6%

Maintenance LTRA vs placebo

Number of participants experiencing one or more episodes requiring hospital admission · episodic viral wheeze in children

Maintenance LTRA showed no clear difference in number of participants experiencing one or more episodes requiring… compared with placebo (moderate certainty).

1 finding from 1 review

Intermittent LTRA vs placebo

Number of participants experiencing one or more episode requiring treatment with oral steroids · episodic viral wheeze in children

Intermittent LTRA showed no clear difference in number of participants experiencing one or more episode requiring… compared with placebo (moderate certainty).

1 finding from 1 review

Intermittent LTRA vs placebo

Number of participants experiencing one or more episodes requiring ED visit · episodic viral wheeze in children

Intermittent LTRA showed no clear difference in number of participants experiencing one or more episodes requiring… compared with placebo (moderate certainty).

1 finding from 1 review

Intermittent LTRA vs placebo

Number of participants experiencing one or more episodes requiring hospital admission · episodic viral wheeze in children

Intermittent LTRA showed no clear difference in number of participants experiencing one or more episodes requiring… compared with placebo (moderate certainty).

1 finding from 1 review

Intervention not reported

Number of exacerbations of bronchiectasis Frequency of acute exacerbations of bronchiectasis · individuals with stable bronchiectasis

The intervention showed no clear difference in number of exacerbations of bronchiectasis Frequency of acute… (low certainty).

1 finding from 1 review

Intervention not reported

Hospitalisations · individuals with stable bronchiectasis

The review found no eligible studies for this question.

1 finding from 1 review

Intervention not reported

Health‐related quality of life (disease‐specific) Scale from 0 to 100; lower score indicates better HRQoL. SGRQ total score consists of weighted scores from 3 domains · individuals with stable bronchiectasis
1 finding from 1 review

Intervention not reported

Health‐related quality of life (cough‐specific) Leicester Cough Questionnaire Scale from 0 to 133; higher score indicates better HRQoL. Contains 19 questions from 3 domains on a Likert scale · individuals with stable bronchiectasis
1 finding from 1 review

Intervention not reported

Health‐related quality of life (health status) COPD Assessment Tool. Scale from 0 to 5; higher score indicates worse HRQoL Contains 10 questions with 5‐point Likert scale · individuals with stable bronchiectasis

The intervention showed no clear difference in health‐related quality of life (health status) COPD Assessment Tool.… (low certainty).

1 finding from 1 review

Intervention not reported

Respiratory symptoms (symptoms) Breathlessness, Cough and Sputum Scale Scale from 0 to 12. Lower score indicates fewer symptoms · individuals with stable bronchiectasis

The intervention showed no clear difference in respiratory symptoms (symptoms) Breathlessness, Cough and Sputum… (low certainty).

1 finding from 1 review

Intervention not reported

Adverse events (AEs) · individuals with stable bronchiectasis

The review found no eligible studies for this question.

1 finding from 1 review

Long‐acting beta2‐agonist plus tiotropium vs long‐acting beta2‐agonist alone

Hospital admission (exacerbation) · addition to tiotropium versus either tiotropium or LABA alone for chronic obstructive pulmonary disease

Long‐acting beta2‐agonist plus tiotropium showed no clear difference in hospital admission (exacerbation) compared with long‐acting beta2‐agonist alone (low certainty).

1 finding from 1 review

Long‐acting beta2‐agonist plus tiotropium vs long‐acting beta2‐agonist alone

Mortality (all cause) · addition to tiotropium versus either tiotropium or LABA alone for chronic obstructive pulmonary disease

Long‐acting beta2‐agonist plus tiotropium showed no clear difference in mortality (all cause) compared with long‐acting beta2‐agonist alone (low certainty).

1 finding from 1 review

Long‐acting beta2‐agonist plus tiotropium vs tiotropium

Quality of life SGRQ responder analysis at 6 months · addition to tiotropium versus either tiotropium or LABA alone for chronic obstructive pulmonary disease

Long‐acting beta2‐agonist plus tiotropium probably leads to higher quality of life SGRQ responder analysis at 6 months compared with tiotropium alone (moderate certainty).

1 finding from 1 review

Long‐acting beta2‐agonist plus tiotropium vs tiotropium

Hospital admissions · addition to tiotropium versus either tiotropium or LABA alone for chronic obstructive pulmonary disease

Long‐acting beta2‐agonist plus tiotropium showed no clear difference in hospital admission (all cause) compared with tiotropium alone (moderate certainty).

1 finding from 1 review