Zinc vs placebo: Incidence of pneumonia Defined as patient admitted to hospital with a diagnosis of pneumonia Dose: 2 g per day
Zinc supplementation may leads to lower pneumonia incidence compared with placebo (low certainty).
What each review found
Current versions only| Finding | Effect | Studies | GRADE certainty |
|---|---|---|---|
Zinc supplementation vs placebo Pneumonia incidence · children aged 2 months to 59 months Zinc supplementation may leads to lower pneumonia incidence compared with placebo (low certainty). Zinc supplementation for the prevention of pneumonia in children aged 2 months to 59 months (2016) · Cochrane Headline outcomes only | RR 0.87 [0.81, 0.94] | 6 studies · 5193 participants | Low |
Findings are shown side by side, never pooled across reviews.
The reviews
| Review | Searched up to | Included studies | AMSTAR 2 |
|---|---|---|---|
| Zinc supplementation for the prevention of pneumonia in children aged 2 months to 59 months 2016 · Cochrane Headline outcomes only | Not reported | list not extracted yet | Not assessed |
Studies behind the findings
None of these reviews ties its included studies to this outcome in the data here. Cochrane reviews and reviews with headline outcomes only do not list their studies yet.
How reviews are matched to this question
Reviews word the same question differently. Four decision models (TypeSafe's Jev, Liquid AI's d1-ultra, SubQ Snap and Baseten's Elephant) judged each wording of the population, intervention, comparator and outcome against the others; two wordings count as the same when at least three of them agree and none clearly disagrees, and findings count as this question only when all four elements match. Timing, setting and subgroup never split a question: they are shown on each finding.