Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

4,749 questions · 17,858 findings · 1,266 reviews

No studies found 4,359 · 24.4%GRADE not reported 2,348 · 13.1%Very low 4,634 · 25.9%Low 4,000 · 22.4%Moderate 2,052 · 11.5%High 465 · 2.6%

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Intervention not reported

Non‐randomized studies** · adults and children

The review found no eligible studies for this question.

1 finding from 1 review

Intervention not reported

Diarrhoea prevalence (Children < 5a) · adults and children

The intervention showed no clear difference in diarrhoea prevalence (Children < 5a) (low certainty).

1 finding from 1 review

Intervention not reported

Non‐randomized studies** · adults and children

The review found no eligible studies for this question.

1 finding from 1 review

Intervention not reported

Diarrhoea prevalence (All ages) · adults and children

The intervention may leads to lower diarrhoea prevalence (All ages) (low certainty).

1 finding from 1 review

Intervention not reported

Diarrhoea prevalence (Children < 5) · adults and children

It is very uncertain whether the intervention changes diarrhoea prevalence (Children < 5) (very low certainty).

1 finding from 1 review