The effects of climate on the incidence of benign paroxysmal positional vertigo
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ORIGINAL PAPER
The effects of climate on the incidence of benign paroxysmal positional vertigo Seung Ri Oh 1 & Sung Jin Min 1 & Chang Eurn Kim 1 & Munyoung Chang 1 & Seog-Kyun Mun 1 Received: 3 April 2020 / Revised: 4 August 2020 / Accepted: 18 August 2020 # ISB 2020
Abstract Benign paroxysmal positional vertigo (BPPV) is one of the most common vestibular disorders. An investigation into the factors related to BPPV could contribute to its prevention and appropriate management. We investigated the association between climatic factors and incidence of BPPV in this study. A total of 365 patients who were diagnosed with idiopathic BPPV in the emergency room of our hospital in 2015 were included. The number of patients diagnosed with BPPV per week was calculated (every week). Climatic factors, including daily average humidity, temperature, atmospheric pressure, cloud amount, sunshine amount, and daylight time, were documented daily. The weekly mean climatic value in each week was calculated. Simple correlation analysis and multivariate regression analyses were performed to identify climatic factors associated with the number of patients diagnosed with BPPV. Simple correlation analysis revealed a significant association between the humidity (r = 0.276, p = 0.048), temperature (r = 0.275, p = 0.049), and cloud amount (r = 0.293, p = 0.035) and the number of BPPV patients diagnosed per week. Multivariate regression analysis revealed that only the cloud amount was a statistically significant factor associated with the number of BPPV patients diagnosed every week. A significant positive association was discovered between the cloud amount and BPPV incidence. Cloud amount can therefore have an association with the incidence of BPPV. Keywords Benign paroxysmal positional vertigo . Climate . Cloud amount . Vitamin D
Introduction Benign paroxysmal positional vertigo (BPPV) is one of the most common peripheral vestibular diseases (Nedzelski et al. 1986; Strupp and Brandt 2013). It occurs in 10.7 to 64 per 100,000 of the population, with a lifetime prevalence of 2.4% (Bhattacharyya et al. 2008; von Brevern et al. 2007). Although the progress of BPPV is good, dizziness experienced by the patient during the period of the illness can have serious consequences. Patients with BPPV are at an increased risk for falls. BPPV can be a major source of discomfort in their daily lives (Lopez-Escamez et al. 2005; Park et al. 2019). Munyoung Chang and Seog-Kyun Mun contributed equally to this work. * Munyoung Chang [email protected] * Seog-Kyun Mun [email protected] 1
Department of Otorhinolaryngology-Head and Neck Surgery, College of Medicine, Chung-Ang University, 102 Heukseok-ro, Dongjak-gu, Seoul 156-755, Republic of Korea
BPPV occurs when the otolith is detached from the otolithic organ and enters the semicircular canal (Gacek 2003; Hoseinabadi et al. 2016; Korres et al. 2011; Singh and Apeksha 2016; Welling et al. 1997; Zappia 2013). BPPV can develop due to head trauma, long-standing posture, or various inner ear diseases in some pati
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