Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

294 questions · 308 findings · 41 reviews

No studies found 65 · 21.1%GRADE not reported 21 · 6.8%Very low 83 · 26.9%Low 66 · 21.4%Moderate 47 · 15.3%High 26 · 8.4%

Antibiotics vs placebo

Resolution of purulent secretion · acute rhinosinusitis in adults, whether clinically diagnosed or confirmed by imaging

Antibiotics leads to higher severity or duration of different clinical symptoms: resolution of… compared with placebo (high certainty).

1 finding from 1 review

Antibiotics vs placebo

Side effects – overall · acute rhinosinusitis in adults, whether clinically diagnosed or confirmed by imaging

Antibiotics leads to higher side effects: total compared with placebo (high certainty).

1 finding from 1 review

Antibiotics vs placebo

Interventions side effects: diarrhoea · acute rhinosinusitis in adults, whether clinically diagnosed or confirmed by imaging

Antibiotics leads to higher side effects: diarrhoea compared with placebo (high certainty).

1 finding from 1 review

Antibiotics vs placebo

Clinical failure · acute rhinosinusitis in adults, whether clinically diagnosed or confirmed by imaging

Antibiotics leads to lower clinical failure compared with placebo (high certainty).

1 finding from 1 review

Antibiotics vs placebo

Exacerbations · 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 probably leads to lower number of people with one or more exacerbations WMD of compared with placebo (moderate certainty).

1 finding from 1 review

Antibiotics vs placebo

Annual Exacerbation Rates · 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 probably leads to lower rate of exacerbation per patient/year WMD of compared with placebo (moderate certainty).

1 finding from 1 review

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