Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

2,016 questions · 2,067 findings · 222 reviews · Headline outcomes only

No studies found 471 · 22.8%GRADE not reported 108 · 5.2%Very low 570 · 27.6%Low 458 · 22.2%Moderate 363 · 17.6%High 97 · 4.7%

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

Antibiotics vs placebo

Total postoperative infections ‐ early and late · women having elective vaginal hysterectomy

Antibiotics may leads to lower total postoperative infections ‐ early and late compared with placebo (low certainty).

1 finding from 1 review

Antibiotics vs placebo

Pelvic infection · women having elective abdominal hysterectomy

Antibiotics probably leads to lower pelvic infection compared with placebo (moderate certainty).

1 finding from 1 review

Antibiotics vs placebo

Other serious infections · women having elective abdominal hysterectomy

It is very uncertain whether antibiotics changes other serious infections compared with placebo (very low certainty).

1 finding from 1 review