Cochrane · systematic review · CD006829

Combined corticosteroid and long‐acting beta₂‐agonist in one inhaler versus long‐acting beta₂‐agonists for chronic obstructive pulmonary disease

Nannini, LJ, Lasserson, TJ, Poole, P · Cochrane Database of Systematic Reviews · 2012 · Cochrane Library

AirwaysAMSTAR 2: not assessed
SoF tableOnly the outcomes this review put in its Summary of Findings table are listed (the Cochrane Handbook caps them at about seven per comparison). Its other analyses are not shown here.
Questions
5
current version
GRADE rated
5
No studies
0
Included studies
NR
No studies 0 · 0%Ungraded 0 · 0%Very low 1 · 20%Low 1 · 20%Moderate 3 · 60%High 0 · 0%

Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.

Questions and results

Combined inhalers compared to LABAs for COPD

Population: COPD
5 questions
OutcomeEffectEvidenceStatus / GRADE
Annual Exacerbation Rates
Combined inhalers vs LABAs
Rate ratio 0.76 [0.68, 0.84]9 studies · 99211 participantsLow
Downgraded: risk of bias, imprecision, inconsistency, publication bias
Number of people experiencing one or more exacerbations
Combined inhalers vs LABAs
OR 0.83 [0.7, 0.98]6 studies · 3357 participantsModerate
Downgraded: risk of bias, imprecision, inconsistency, publication bias
Annual hospitalisation rates
Combined inhalers vs LABAs
Rate ratio 0.79 [0.55, 1.13]3 studies · 48791 participantsVery low
Downgraded: risk of bias, imprecision, inconsistency, publication bias
Mortality
Combined inhalers vs LABAs
OR 0.92 [0.76, 1.11]10 studies · 10681 participantsModerate
Downgraded: risk of bias, imprecision, inconsistency, publication bias
Pneumonia
Combined inhalers vs LABAs
OR 1.55 [1.2, 2.01]12 studies · 11076 participantsModerate
Downgraded: risk of bias, imprecision, inconsistency, publication bias