Question · asked by 1 review
Vitamins A, C, E + selenium + zinc vs placebo: Adverse events
- Population
- healthy women, aged 35 to 60, and men, aged 45 to 60, living in France
- Intervention
- Vitamins A, C, E + selenium + zinc
- Comparison
- placebo
- Outcome
- Adverse events
The review found no eligible studies for this question.
What each review found
Include earlier review versions| Finding | Effect | Studies | GRADE certainty |
|---|---|---|---|
Vitamins A, C, E + selenium + zinc vs placebo Adverse events · healthy women, aged 35 to 60, and men, aged 45 to 60, living in France The review found no eligible studies for this question. Drugs for preventing lung cancer in healthy people (2020) · Cochrane Headline outcomes only | no estimate extracted | Not reported | No studies found |
Findings are shown side by side, never pooled across reviews.
The reviews
| Review | Searched up to | Included studies | AMSTAR 2 |
|---|---|---|---|
| Drugs for preventing lung cancer in healthy people 2020 · Cochrane Headline outcomes only | Not reported | Not extracted | Not assessed |
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.