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Incidence of Voice Disorders among Private School Teachers in Taiwan: A Nationwide Longitudinal Study

Background: Teachers are more likely to use a loud voice at work than the general working population, but few longitudinal studies have been conducted on their risk of voice disorders. The occurrence of voice disorders in private school teachers was assessed by using the Longitudinal Health Insuranc...

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Autores principales: Chen, Bo-Lei, Cheng, Ya-Yun, Lin, Cheng-Yu, Guo, How-Ran
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8834254/
https://www.ncbi.nlm.nih.gov/pubmed/35162161
http://dx.doi.org/10.3390/ijerph19031130
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author Chen, Bo-Lei
Cheng, Ya-Yun
Lin, Cheng-Yu
Guo, How-Ran
author_facet Chen, Bo-Lei
Cheng, Ya-Yun
Lin, Cheng-Yu
Guo, How-Ran
author_sort Chen, Bo-Lei
collection PubMed
description Background: Teachers are more likely to use a loud voice at work than the general working population, but few longitudinal studies have been conducted on their risk of voice disorders. The occurrence of voice disorders in private school teachers was assessed by using the Longitudinal Health Insurance Database 2000 of Taiwan, which contains information on a random sample of 1 million beneficiaries of National Health Insurance. Methods: This study included private school teachers who were under 35 years old and newly employed between 2000 and 2010, and used workers with other occupations as the comparison cohort. Patients with voice disorders were identified using diagnostic codes on insurance claims. Cox proportional hazards regressions were applied to obtain relative risk estimates. Results: After adjusting for age, sex, income, and comorbidities of sinusitis and laryngitis, private school teachers had a higher risk of developing voice disorders (hazard ratio [HR] = 1.58; 95% confidence intervals: 1.43–1.75). In addition, the finding that elementary and high-school teachers had a higher risk than college teachers (HR: 2.56 vs. 1.44) and the pattern of increases in cumulative incidence over time supported a dose–response relationship between teaching and voice disorders. Conclusions: Private school teachers had higher risks of voice disorders. The results support the causality between occupation and voice disorders in teachers.
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spelling pubmed-88342542022-02-12 Incidence of Voice Disorders among Private School Teachers in Taiwan: A Nationwide Longitudinal Study Chen, Bo-Lei Cheng, Ya-Yun Lin, Cheng-Yu Guo, How-Ran Int J Environ Res Public Health Article Background: Teachers are more likely to use a loud voice at work than the general working population, but few longitudinal studies have been conducted on their risk of voice disorders. The occurrence of voice disorders in private school teachers was assessed by using the Longitudinal Health Insurance Database 2000 of Taiwan, which contains information on a random sample of 1 million beneficiaries of National Health Insurance. Methods: This study included private school teachers who were under 35 years old and newly employed between 2000 and 2010, and used workers with other occupations as the comparison cohort. Patients with voice disorders were identified using diagnostic codes on insurance claims. Cox proportional hazards regressions were applied to obtain relative risk estimates. Results: After adjusting for age, sex, income, and comorbidities of sinusitis and laryngitis, private school teachers had a higher risk of developing voice disorders (hazard ratio [HR] = 1.58; 95% confidence intervals: 1.43–1.75). In addition, the finding that elementary and high-school teachers had a higher risk than college teachers (HR: 2.56 vs. 1.44) and the pattern of increases in cumulative incidence over time supported a dose–response relationship between teaching and voice disorders. Conclusions: Private school teachers had higher risks of voice disorders. The results support the causality between occupation and voice disorders in teachers. MDPI 2022-01-20 /pmc/articles/PMC8834254/ /pubmed/35162161 http://dx.doi.org/10.3390/ijerph19031130 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Chen, Bo-Lei
Cheng, Ya-Yun
Lin, Cheng-Yu
Guo, How-Ran
Incidence of Voice Disorders among Private School Teachers in Taiwan: A Nationwide Longitudinal Study
title Incidence of Voice Disorders among Private School Teachers in Taiwan: A Nationwide Longitudinal Study
title_full Incidence of Voice Disorders among Private School Teachers in Taiwan: A Nationwide Longitudinal Study
title_fullStr Incidence of Voice Disorders among Private School Teachers in Taiwan: A Nationwide Longitudinal Study
title_full_unstemmed Incidence of Voice Disorders among Private School Teachers in Taiwan: A Nationwide Longitudinal Study
title_short Incidence of Voice Disorders among Private School Teachers in Taiwan: A Nationwide Longitudinal Study
title_sort incidence of voice disorders among private school teachers in taiwan: a nationwide longitudinal study
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8834254/
https://www.ncbi.nlm.nih.gov/pubmed/35162161
http://dx.doi.org/10.3390/ijerph19031130
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