Findings

What do systematic reviews say?

1 questions · 1 findings · 1 reviews · Acute Respiratory Infections

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No studies found 0 · 0%GRADE not reported 0 · 0%Very low 0 · 0%Low 1 · 100%Moderate 0 · 0%High 0 · 0%

Vitamin A vs placebo

Incidence of acute URTIs during the study period (proportion of participants with an acute URTI) · children up to the age of 7 at risk of upper respiratory tract infection

1 finding from 1 review

Oral vitamin A supplements to prevent acute upper respiratory tract infections in children up to seven years of age 2024 · Cochrane Headline outcomes only
no estimate extracted
2 studies · 15535 participants
Low