Prevalence of childhood hearing impairment of different severities in urban and rural areas: a nationwide population-based study in Taiwan

doi:10.1136/bmjopen-2017-020955

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题名:	Prevalence of childhood hearing impairment of different severities in urban and rural areas: a nationwide population-based study in Taiwan
作者:	Lin, Cheng-Yu Tseng, Yen-Cheng Guo, How-Ran Lai, Der-Chung
贡献者:	Natl Cheng Kung Univ, Natl Cheng Kung Univ Hosp, Coll Med, Dept Otolaryngol Natl Cheng Kung Univ, Natl Cheng Kung Univ Hosp, Coll Med, Dept Environm & Occupat Med Chang Jung Christian Univ, Dept Tourism Food & Management, Language Educ Ctr Natl Cheng Kung Univ, Coll Med, Dept Environm & Occupat Hlth Chiayi Christian Hosp, Ditmanson Med Fdn, Dept Phys Med & Rehabil Chia Nan Univ Pharm & Sci, Dept Senior Citizen Serv Management
关键词:	Suppurative Otitis-Media School-Children Young Chinese South-India Ear Disease Health Epidemiology Adolescents Age Schoolchildren
日期:	2018-03
上传时间:	2019-11-15 15:43:42 (UTC+8)
出版者:	BMJ PUBLISHING GROUP
摘要:	Objective Childhood hearing intpairntent (CHI) is a major developmental disability, but data at the national level are limited, especially those on different severities. We conducted a study to fill this data gap. Design A nationwide study on the basis of a reporting system. Setting To provide services to disabled citizens, the Taiwanese government maintains a registry of certified cases. Using data from this registry, we estimated prevalence rates of CHI of different severities front 2004 to 2010 and made comparisons between urban and rural areas. Participants Taiwanese citizens <= 17 years old. Primary outcome measures To qualify for CHI disability benefits, a child must have an unaided pure-tone better ear hearing level at 0.5,1 and 2kHz with an average >= 55 decibels (dB), confirmed by an otolaryngologist. The severity was classified by pure-tone better ear hearing level as mild (55-69dB), moderate (70-89dB) and severe (>= 90 dB). Results The registered cases under 17 years old decreased annually from 4075 in 2004 to 3533 in 2010, but changes in the prevalence rate were srrtall, ranging front 7.62/10 000 in 2004 to 7.91/10 000 in 2006. The prevalence rates of mild CHI increased in all areas over time, but not those of moderate or severe CHI. Rural areas had higher overall prevalence rates than urban areas in all years, with rate ratios (RRs) between 1.01 and 1.09. By severity, rural areas had higher prevalence rates of mild (RRs between 1.08 and 1.25) and moderate (RRs between 1.06 and 1.21) CHI but had lower prevalence rates of severe CHI (RRs between 0.92 and 0.99). Conclusion While rural areas had higher overall prevalence rates of CHI than urban areas, the RRs decreased with CHI severity. Further studies that identify factors affecting the rural urban difference might help the prevention of CHI.
關聯:	Bmj Open, v.8, n.3, e020955
显示于类别:	[Dept. of Senior Service and Health Management] Periodical Articles

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