Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

34 questions · 35 findings · 17 reviews

No studies found 2 · 5.7%GRADE not reported 2 · 5.7%Very low 10 · 28.6%Low 12 · 34.3%Moderate 5 · 14.3%High 4 · 11.4%

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 or no intervention

Cardiovascular mortality · patients with coronary heart disease

Antibiotics leads to higher cardiovascular mortality at 24±6 months compared with placebo or no intervention (high certainty).

2 findings from 1 review

More than 24 hours of antibiotics vs 24 hours of antibiotics

All‐cause mortality · people undergoing laparotomy for penetrating abdominal trauma

It is very uncertain whether more than 24 hours of antibiotics changes mortality compared with 24 hours of antibiotics (very low certainty).

1 finding from 1 review

Antibiotics vs other antibiotics

All‐cause mortality (penicillin versus doxycycline) · people with leptospirosis

It is very uncertain whether summary of findings table ‐ Antibiotics changes all‐cause mortality (penicillin versus doxycycline) compared with other antibiotics (very low certainty).

1 finding from 1 review

Antibiotics vs other antibiotics

All‐cause mortality (a cephalosporin (cefotaxime) versus doxycycline) · people with leptospirosis

It is very uncertain whether summary of findings table ‐ Antibiotics changes all‐cause mortality (a cephalosporin (cefotaxime) versus doxycycline) compared with other antibiotics (very low certainty).

1 finding from 1 review