SynthesisEuropean archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery2025
Seasonal and monthly variation in benign paroxysmal positional vertigo: a systematic review and meta‑analysis.
Synthesis in European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
2 citing papers in PubMed.
- Seasonal variation in climate, air pollution, and the incidence of benign paroxysmal positional vertigo.Scientific reports · 2026Article
- Recurrence of benign paroxysmal positional vertigo: risk factors and outcomes.Revista da Associacao Medica Brasileira (1992) · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
Abstract
purposeThe relationship between seasonal variations and the incidence of benign paroxysmal positional vertigo (BPPV) has been widely studied, but the findings remain inconsistent. This systematic review and meta-analysis aimed to evaluate whether BPPV demonstrates seasonal variation.
methodsA comprehensive search was conducted across PubMed, Embase, Cochrane Library, Web of Science, and CNKI databases for studies on the monthly or seasonal incidence of BPPV from their inception up to August 2024. Pooled monthly or seasonal incidence rates, risk ratios (RRs) for one season versus another and 95% confidence intervals (CIs) were combined using the random-effects model. This meta-analysis has been registered at International Prospective Register of Systematic Reviews (PROSPERO) (NO. CRD42024583513).
resultsTen eligible studies were included, comprising 5,063 subjects. Pooled BPPV incidence was highest in winter (28%) and lowest in summer (21%). Additionally, the pooled monthly incidence was highest in December (12.6%) and lowest in July (7.4%). The overall RRs and 95% CIs are as follows: winter versus summer (1.30 [1.07,1.59]); winter versus spring (1.01 [0.88,1.17]); winter versus autumn (1.11[0.95,1.30]); spring versus autumn (1.09 [0.91,1.31]); spring versus summer (1.29 [1.00,1.66]); autumn versus summer (1.17 [0.97,1.42]).
conclusionOur meta-analysis suggests that there may be seasonal variation in the incidence of BPPV. The finding of seasonal patterns provides a new perspective to our understanding of BPPV, suggesting environmental factors may play a potential role in its pathophysiology. However, larger cohort studies and multicenter datasets are warranted to validate these findings in future research.
Indexed as
Identifiers
40329040What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.