Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

271 questions · 281 findings · 20 reviews · Public Health

No studies found 53 · 18.9%GRADE not reported 14 · 5%Very low 55 · 19.6%Low 81 · 28.8%Moderate 61 · 21.7%High 17 · 6%

Foods fortified with zinc alone vs same foods without adding zinc

Stunting · general population of all age groups (including pregnant women) from any country, over two years of age

Foods fortified with zinc alone showed no clear difference in stunting (author defined) compared with same foods without adding zinc (low certainty).

1 finding from 1 review

Foods fortified with zinc alone vs same foods without adding zinc

Underweight · general population of all age groups (including pregnant women) from any country, over two years of age

Foods fortified with zinc alone showed no clear difference in underweight (author defined) compared with same foods without adding zinc (low certainty).

1 finding from 1 review

Day care programs combined with playpen provision vs playpen provision

Drowning mortality rate · 9‐ to 47‐month‐old children in LMICs

It is very uncertain whether day care programs combined with playpen provision changes drowning mortality rate compared with playpen provision (very low certainty).

1 finding from 1 review