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Seasonal variation of patulous Eustachian tube diagnoses using climatic and national health insurance data

Published online by Cambridge University Press:  09 July 2021

S Lee
Affiliation:
Department of Otorhinolaryngology and Biomedical Research Institute, Busan, Republic of Korea
S-W Choi
Affiliation:
Department of Otorhinolaryngology and Biomedical Research Institute, Busan, Republic of Korea
J Kim
Affiliation:
Department of Biostatics, Clinical Trial Centre, Biomedical Research Institute, Pusan National University Hospital, Busan, Republic of Korea
H M Lee
Affiliation:
Department of Otorhinolaryngology and Biomedical Research Institute, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea
S-J Oh
Affiliation:
Department of Otorhinolaryngology and Biomedical Research Institute, Busan, Republic of Korea
S-K Kong*
Affiliation:
Department of Otorhinolaryngology and Biomedical Research Institute, Busan, Republic of Korea
*
Author for correspondence: Dr Soo-Keun Kong, Department of Otorhinolaryngology and Biomedical Research Institute, Pusan National University School of Medicine, Pusan National University Hospital, Gudeok-ro 179, Seo-Gu, Busan 49241, Republic of Korea E-mail: entkong@gmail.com Fax: +82 51 246 8668

Abstract

Objectives

This study aimed to analyse if there were any associations between patulous Eustachian tube occurrence and climatic factors and seasonality.

Methods

The correlation between the monthly average number of patients diagnosed with patulous Eustachian tube and climatic factors in Seoul, Korea, from January 2010 to December 2016, was statistically analysed using national data sets.

Results

The relative risk for patulous Eustachian tube occurrence according to season was significantly higher in summer and autumn, and lower in winter than in spring (relative risk (95 per cent confidence interval): 1.334 (1.267–1.404), 1.219 (1.157–1.285) and 0.889 (0.840–0.941) for summer, autumn and winter, respectively). Temperature, atmospheric pressure and relative humidity had a moderate positive (r = 0.648), negative (r = –0.601) and positive (r = 0.492) correlation with the number of patulous Eustachian tube cases, respectively.

Conclusion

The number of patulous Eustachian tube cases was highest in summer and increased in proportion to changes in temperature and humidity, which could be due to physiological changes caused by climatic factors or diet trends.

Information

Type
Main Articles
Copyright
Copyright © The Author(s), 2021. Published by Cambridge University Press

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