Question · asked by 1 review
Botulinum toxin type A vs placebo: Health‐related quality of life
- Population
- cervical dystonia
- Intervention
- Botulinum toxin type A
- Comparison
- placebo
- Outcome
- Health‐related quality of life
What each review found
Current versions only| Finding | Effect | Studies | GRADE certainty |
|---|---|---|---|
Botulinum toxin type A vs placebo Health‐related quality of life · cervical dystonia Botulinum toxin type A therapy for cervical dystonia (2020) · Cochrane Headline outcomes only | no estimate extracted | Not reported | Moderate |
Findings are shown side by side, never pooled across reviews.
The reviews
| Review | Searched up to | Included studies | AMSTAR 2 |
|---|---|---|---|
| Botulinum toxin type A therapy for cervical dystonia 2020 · 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.
- Botulinum toxin type A vs placebo · adults with blepharospasm · 1 review
- Botulinum toxin type A vs anticholinergics · cervical dystonia · 1 review
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.