Findings

What do systematic reviews say?

5 questions · 5 findings · 3 reviews · Acute Respiratory Infections

No studies found 2 · 40%GRADE not reported 0 · 0%Very low 0 · 0%Low 1 · 20%Moderate 2 · 40%High 0 · 0%

Mortality rate ( · children with acute pneumonia

Vitamin D showed no clear difference in mortality rate ( compared with placebo (low certainty).

1 finding from 1 review

Vitamin D as an adjunct to antibiotics for the treatment of acute childhood pneumonia 2023 · Cochrane Headline outcomes only
RR 0.69 [0.44, 1.07]
3 studies · 584 participants
Low

Mortality (pneumonia-associated) · school‐aged children (6 to 15 years) and marine corps recruits (mean age 18.5 years)

The review found no eligible studies for this question.

1 finding from 1 review

Vitamin C supplementation for prevention and treatment of pneumonia 2021 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Mortality (pneumonia-associated) · children under 5 years of age

The review found no eligible studies for this question.

1 finding from 1 review

Vitamin C supplementation for prevention and treatment of pneumonia 2021 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Mortality · children with measles

The intervention showed no clear difference in mortality (moderate certainty).

1 finding from 1 review

Vitamin A for treating measles in children 2005 · Cochrane Headline outcomes only
RR 0.7 [0.42, 1.15]
8 studies · 2574 participants
Moderate

Pneumonia‐specific mortality · children with measles

The intervention showed no clear difference in pneumonia‐specific mortality (moderate certainty).

1 finding from 1 review

Vitamin A for treating measles in children 2005 · Cochrane Headline outcomes only
RR 0.57 [0.24, 1.37]
4 studies · 723 participants
Moderate