Prevalence of hearing impairment in an adult population in southern Taiwan

Cheng Yu Lin, Yi Ching Yang, Yueliang Leon Guo, Chih Hsing Wu, Chih-Jen Chang, Jiunn Liang Wu

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

Abstract

The objective of this study was to estimate the prevalence of hearing impairment in a representative adult population in southern Taiwan and compare the results to those of similar studies in other countries. A stratified systematic cluster sample of 1140 residents, aged ≥20 years, of Tainan City was studied from 2001 to 2003. The test battery included otoscopy, pure-tone audiometry, and a questionnaire covering relevant personal, occupational, and family history. The hearing threshold level (HTL) was defined as the better ear pure-tone average (BPTA) (i.e. the average of hearing thresholds at frequencies 500, 1000, 2000, and 4000 Hz). The prevalence of hearing impairment was 21.4% (95% confidence interval: 19.3-23.7%) at BPTA ≥25 dB HTL. Middle ear disease was a significant risk factor for hearing impairment in addition to age and gender. The overall prevalence of hearing impairment may be higher in Taiwan (17.1%) than in western populations (11.5%), but differences in the definition of hearing impairment severity and variation in sex distribution among studies may account for this higher prevalence.

Original languageEnglish
Pages (from-to)732-737
Number of pages6
JournalInternational Journal of Audiology
Volume46
Issue number12
DOIs
Publication statusPublished - 2007 Dec

All Science Journal Classification (ASJC) codes

  • Language and Linguistics
  • Linguistics and Language
  • Speech and Hearing

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