Question · asked by 1 review
Vitamin C vs placebo: Adverse events
- Population
- people with asthma
- Intervention
- Vitamin C
- Comparison
- placebo
- Outcome
- Adverse events
What each review found
Include earlier review versions| Finding | Effect | Studies | GRADE certainty |
|---|---|---|---|
Summary of findings: Vitamin C supplementation vs placebo Adverse events · adults and children with asthma Vitamin C for asthma and exercise‐induced bronchoconstriction (2013) · Cochrane Headline outcomes only | no estimate extracted | 1 study · 41 participants | Very low |
Findings are shown side by side, never pooled across reviews.
The reviews
| Review | Searched up to | Included studies | AMSTAR 2 |
|---|---|---|---|
| Vitamin C for asthma and exercise‐induced bronchoconstriction 2013 · Cochrane Headline outcomes only | Not reported | Not extracted | Not assessed |
Related questions
The same intervention and outcome, asked in another population or against another comparator.
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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.