Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

4,695 questions · 4,979 findings · 433 reviews

No studies found 998 · 20%GRADE not reported 1,140 · 22.9%Very low 1,024 · 20.6%Low 1,029 · 20.7%Moderate 636 · 12.8%High 152 · 3.1%

BivWC vaccine (Shanchol): two doses vs placebo

Cases of cholera ( · healthy children and adults; high risk population
3 findings from 1 review

Vitamin A vs placebo

Incidence of acute URTIs during the study period (the number of acute URTIs over a period of time) · children up to the age of 7 at risk of upper respiratory tract infection

Summary of findings table ‐ Vitamin A supplements showed no clear difference in incidence of acute URTIs during the study period (the number of… compared with placebo (low certainty).

1 finding from 1 review

Surgery vs Radiotherapy alone

Adverse events associated with treatment · Adults with oropharyngeal cancer
1 finding from 1 review