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%

Single‐dose antibiotic vs 24 hours of antibiotics

Abdominal surgical site infection · people undergoing laparotomy for penetrating abdominal trauma

It is very uncertain whether single dose of antibiotics changes abdominal surgical site infection compared with 24 hours of antibiotics (very low certainty).

1 finding from 1 review

Single‐dose antibiotic vs 24 hours of antibiotics

Intra‐abdominal infection · people undergoing laparotomy for penetrating abdominal trauma

It is very uncertain whether single dose of antibiotics changes intra‐abdominal infection compared with 24 hours of antibiotics (very low certainty).

1 finding from 1 review

Antibiotics (short duration) vs antibiotics (long duration) postpartum

Treatment failure (vaginal and cesarean delivery) · women with management of intra‐amniotic infection

Antibiotics (short duration) showed no clear difference in treatment failure (vaginal and cesarean delivery) compared with antibiotics (long duration) postpartum (low certainty).

1 finding from 1 review

14 days on/off antibiotic regimen vs 28 days on/off antibiotic regimen

Exacerbation frequency · people with bronchiectasis

14 days on/off antibiotic regimen showed no clear difference in exacerbation frequency compared with 28 days on/off antibiotic regimen (moderate certainty).

2 findings from 1 review