Question · asked by 1 review
Betahistine vs placebo: Tinnitus loudness
- Population
- patients with subjective idiopathic tinnitus
- Intervention
- Betahistine
- Comparison
- placebo
- Outcome
- Tinnitus loudness
What each review found
Current versions onlyNo studies found 0 · 0%GRADE not reported 0 · 0%Very low 2 · 100%Low 0 · 0%Moderate 0 · 0%High 0 · 0%
| Finding | Effect | Studies | GRADE certainty |
|---|---|---|---|
Betahistine vs placebo Tinnitus loudness measured by a visual analogue scale (range 0 to 10/more than 10) · patients with subjective idiopathic tinnitus Betahistine for tinnitus (2018) · Cochrane Headline outcomes only | no estimate extracted | 2 studies · 81 participants | Very low |
Betahistine vs placebo Tinnitus loudness measured by a visual analogue scale (range 0 to 10) · patients with subjective idiopathic tinnitus Betahistine for tinnitus (2018) · Cochrane Headline outcomes only | no estimate extracted | 1 study · 70 participants | Very low |
Findings are shown side by side, never pooled across reviews.
The reviews
| Review | Searched up to | Included studies | AMSTAR 2 |
|---|---|---|---|
| Betahistine for tinnitus 2018 · 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.