Cochrane · systematic review · CD011959

Statins versus placebo for people with chronic obstructive pulmonary disease

Walsh, A, Perrem, L, Khashan, AS, et al. · Cochrane Database of Systematic Reviews · 2019 · 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
6
current version
GRADE rated
4
No studies
0
Included studies
NR
No studies 0 · 0%Ungraded 2 · 33.3%Very low 0 · 0%Low 2 · 33.3%Moderate 2 · 33.3%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

Statins compared to placebo as adjunct therapy for chronic obstructive pulmonary disease (COPD)

Population: adults with chronic obstructive pulmonary disease (COPD)
6 questions
OutcomeEffectEvidenceStatus / GRADE
Number of exacerbations per person‐year
Statins vs placebo
no estimate extracted1 study · 877 participantsModerate
Downgraded: risk of bias
Exacerbations requiring hospitalisation per person‐year
Statins vs placebo
no estimate extracted1 study · 877 participantsModerate
Downgraded: risk of bias
All‐cause mortality
Statins vs placebo
OR 1.03 [0.61, 1.74]2 studies · 952 participantsLow
Downgraded: risk of bias, imprecision
COPD‐specific mortality
Statins vs placebo
OR 1.25 [0.38, 4.13]1 study · 877 participantsLow
Downgraded: risk of bias
Quality of life
Statins vs placebo
no estimate extracted3 studies · 3 participantsUngraded
Adverse events
Statins vs placebo
no estimate extracted8 studies · 8 participantsUngraded