%0 Journal Article
%T Nationwide Prevalence of Video Head Impulse Test Abnormality and its Risk Factors in South Korea.
%A Suh MW
%A Shim DB
%A Kim MB
%A Park MK
%A Moon IJ
%A Hong SK
%A Oh K
%A Kim Y
%A Kim H
%A Kim SH
%J Otolaryngol Head Neck Surg
%V 0
%N 0
%D 2024 Jun 17
%M 38881387
%F 5.591
%R 10.1002/ohn.856
%X <B>OBJECTIVE: </B>To identify the prevalence of and relevant information for video head impulse test (vHIT) abnormality in a large population.<BR><B>METHODS: </B>A cross-sectional design.<BR><B>METHODS: </B>Korean National Health and Nutrition Examination Survey, 2021.<BR><B>METHODS: </B>The sample was representative of the Korean population, with 2237 participants aged ≥40 years. A vHIT was performed to evaluate vestibular function. The vestibulo-ocular reflex (VOR) gain and the presence of reproducible catch-up saccades was assessed in a vHIT. Participants also completed questionnaires for demographics, socioeconomic status, and basic information regarding systemic diseases and dizziness and underwent hearing tests with automated pure-tone audiometry.<BR><B>RESULTS: </B>The prevalence of vHIT abnormality was 22.5%, with unilateral (14.3%) being more common than bilateral (8.2%). The prevalence of vHIT abnormality increased significantly with age, with the highest rate observed in individuals aged >70 years (42.5%). Both hearing and VOR gain deteriorated with age, but the patterns of age-related progression were different. While hearing loss (HL) deteriorated gradually and progressively throughout adulthood, VOR gain deterioration was markedly evident after 70 years of age.<BR><B>CONCLUSIONS: </B>Considering the high prevalence of vHIT abnormality, appropriate social and medical policies are needed to prevent associated injuries and improve patients' quality of life. The distinct age-related changes in HL and objective findings of vestibular dysfunction indicate the need for different approaches to address these social problems in aging countries.