Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

3,429 questions · 3,558 findings · 436 reviews

No studies found 660 · 18.5%GRADE not reported 375 · 10.5%Very low 727 · 20.4%Low 887 · 24.9%Moderate 709 · 19.9%High 200 · 5.6%

Antibiotics vs placebo

All‐cause mortality WMD of · Adults (aged 40 or over) with COPD presenting with 1 or more exacerbations in the previous year. The 2 larger studies (Albert 2011; Sethi…

Antibiotics showed no clear difference in all‐cause mortality WMD of compared with placebo (moderate certainty).

1 finding from 1 review

Antibiotics vs placebo

Serious adverse events WMD of · Adults (aged 40 or over) with COPD presenting with 1 or more exacerbations in the previous year. The 2 larger studies (Albert 2011; Sethi…

Antibiotics showed no clear difference in serious adverse events WMD of compared with placebo (moderate certainty).

1 finding from 1 review

Antibiotics vs placebo

Treatment failure within 4 weeks ‐ current drugs only ‐ inpatient · exacerbations of COPD

Antibiotics showed no clear difference in treatment failure within 4 weeks ‐ current drugs only ‐ inpatient compared with placebo (moderate certainty).

1 finding from 1 review