Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

271 questions · 277 findings · 30 reviews · Headline outcomes only

No studies found 31 · 11.2%GRADE not reported 10 · 3.6%Very low 93 · 33.6%Low 64 · 23.1%Moderate 65 · 23.5%High 14 · 5.1%

Summary of findings: quinolone prophylaxis vs TMP‐SMZ prophylaxis

All cause‐mortality · cancer patients with afebrile neutropenia following chemotherapy

Summary of findings: quinolone prophylaxis probably leads to higher all cause‐mortality compared with TMP‐SMZ prophylaxis (moderate certainty).

1 finding from 1 review

Summary of findings: quinolone prophylaxis vs TMP‐SMZ prophylaxis

Febrile patients and episodes · cancer patients with afebrile neutropenia following chemotherapy

Summary of findings: quinolone prophylaxis probably leads to lower febrile patients and episodes compared with TMP‐SMZ prophylaxis (moderate certainty).

1 finding from 1 review

Antibiotics vs other antibiotics

Clinical diagnosis of leptospirosis regardless of laboratory confirmation · farmworkers

It is very uncertain whether summary of findings table ‐ Antibiotics changes clinical diagnosis of leptospirosis regardless of laboratory… compared with other antibiotics (very low certainty).

1 finding from 1 review

Antibiotics vs other antibiotics

Laboratory‐confirmed leptospirosis · farmworkers

It is very uncertain whether summary of findings table ‐ Antibiotics changes clinical diagnosis of leptospirosis confirmed by laboratory diagnosis compared with other antibiotics (very low certainty).

2 findings from 1 review

Antibiotics vs other antibiotics

Non‐serious adverse events · farmworkers

It is very uncertain whether summary of findings table ‐ Antibiotics changes non‐serious adverse events compared with other antibiotics (very low certainty).

1 finding from 1 review

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

Topical plus systemic prophylaxis vs placebo or no treatment

Respiratory infections · adults receiving mechanical ventilation for at least 48 hours

Topical plus systemic prophylaxis probably leads to lower respiratory tract infections compared with placebo or no treatment (moderate certainty).

1 finding from 1 review

Topical plus systemic prophylaxis vs placebo or no treatment

Dropouts due to adverse events · adults receiving mechanical ventilation for at least 48 hours

Topical plus systemic prophylaxis showed no clear difference in dropouts due to adverse events compared with placebo or no treatment (low certainty).

1 finding from 1 review

Topical plus systemic prophylaxis vs placebo or no treatment

Gastrointestinal adverse events · adults receiving mechanical ventilation for at least 48 hours

Topical plus systemic prophylaxis showed no clear difference in gastrointestinal adverse events compared with placebo or no treatment (low certainty).

1 finding from 1 review