Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

42 questions · 42 findings · 6 reviews · Headline outcomes only

No studies found 6 · 14.3%GRADE not reported 1 · 2.4%Very low 13 · 31%Low 6 · 14.3%Moderate 10 · 23.8%High 6 · 14.3%

Prophylactic antibiotics vs placebo

Preterm prelabour rupture of membranes · women in the second or third trimester of pregnancy before labour and delivery

Prophylactic antibiotics showed no clear difference in preterm prelabour rupture of membranes compared with placebo (low certainty).

1 finding from 1 review

Prophylactic antibiotics vs placebo

Puerperal sepsis/postpartum endometritis · women in the second or third trimester of pregnancy before labour and delivery

Prophylactic antibiotics probably leads to lower puerperal sepsis/postpartum endometritis compared with placebo (moderate certainty).

1 finding from 1 review

Prophylactic antibiotics vs placebo or no treatment

Surgical site infection · women with urinary stress incontinence undergoing continence surgery

It is very uncertain whether prophylactic antibiotics (single or combined drugs) changes number of surgical site infections (SSIs) before discharge compared with placebo or no treatment (very low certainty).

1 finding from 1 review

Prophylactic antibiotics vs placebo or no treatment

Number of symptomatic UTIs or bacteriuria before discharge · women with urinary stress incontinence undergoing continence surgery

It is very uncertain whether prophylactic antibiotics (single or combined drugs) changes number of symptomatic UTIs or bacteriuria before discharge compared with placebo or no treatment (very low certainty).

1 finding from 1 review

Prophylactic antibiotics vs placebo or no treatment

Febrile morbidity · women with urinary stress incontinence undergoing continence surgery

It is very uncertain whether prophylactic antibiotics (single or combined drugs) changes number of women with febrile morbidity at hospital discharge compared with placebo or no treatment (very low certainty).

1 finding from 1 review

Prophylactic antibiotics vs placebo or no treatment

Mesh exposure · women with urinary stress incontinence undergoing continence surgery

It is very uncertain whether prophylactic antibiotics (single or combined drugs) changes number of mesh exposures within six weeks after the operation compared with placebo or no treatment (very low 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

Prophylactic intravenous antibiotics administered before cesarean incision vs after neonatal umbilical cord clamping

Maternal composite morbidity · women undergoing caesarean section

Prophylactic intravenous antibiotics administered before cesarean… leads to lower maternal composite morbidity compared with after neonatal umbilical cord clamping (high certainty).

1 finding from 1 review