Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

4,756 questions · 13,493 findings · 1,305 reviews · Headline outcomes only

No studies found 2,594 · 19.2%GRADE not reported 728 · 5.4%Very low 2,868 · 21.3%Low 3,777 · 28%Moderate 2,620 · 19.4%High 906 · 6.7%

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Antibiotics vs placebo or no intervention

Laboratory‐confirmed leptospirosis · farmworkers, soldiers, and people in endemic areas

It is very uncertain whether summary of findings table ‐ Antibiotics changes laboratory‐confirmed leptospirosis compared with placebo or no intervention (very low certainty).

1 finding from 1 review

Antibiotics vs placebo or no intervention

Clinical diagnosis of infection regardless of laboratory confirmed · farmworkers, soldiers, and people in endemic areas

Summary of findings table ‐ Antibiotics showed no clear difference in clinical diagnosis of infection regardless of laboratory confirmed compared with placebo or no intervention (low certainty).

1 finding from 1 review

Antibiotics vs placebo or no intervention

Clinical diagnosis confirmed by laboratory diagnosis · farmworkers, soldiers, and people in endemic areas

Summary of findings table ‐ Antibiotics showed no clear difference in clinical diagnosis confirmed by laboratory diagnosis compared with placebo or no intervention (low certainty).

1 finding from 1 review

Antibiotics vs placebo or no intervention

Non‐serious adverse events · farmworkers, soldiers, and people in endemic areas

It is very uncertain whether summary of findings table ‐ Antibiotics changes non‐serious adverse events compared with placebo or no intervention (very low certainty).

1 finding from 1 review

Antibiotics vs placebo or no intervention

All‐cause mortality · people with leptospirosis

It is very uncertain whether summary of findings table ‐ Antibiotics changes all‐cause mortality compared with placebo or no intervention (very low certainty).

1 finding from 1 review

Antibiotics vs placebo or no intervention

Adverse events considered non‐serious · people with leptospirosis

It is very uncertain whether summary of findings table ‐ Antibiotics changes adverse events considered non‐serious compared with placebo or no intervention (very low certainty).

1 finding from 1 review

Prebiotic vs placebo

Withdrawals due to adverse events · people with histologically confirmed diagnosis of ulcerative colitis in remission

It is very uncertain whether prebiotics changes withdrawals due to adverse events (60 days to 6 months) compared with placebo (very low certainty).

1 finding from 1 review

Prebiotic vs placebo

Withdrawals due to adverse events · people with mild‐to‐moderate disease (Rachmilewitz index) or active disease (SCCAI score of 4 to 10)

It is very uncertain whether prebiotics changes withdrawals due to adverse events (14 days to 2 or 3 months) compared with placebo (very low certainty).

1 finding from 1 review