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:: Volume 20, Issue 1 (27 2011) ::
aud 2011, 20(1): 116-127 Back to browse issues page
Prevalence and causes of hearing handicap in Ardabil province, Western Iran
Nader Hajloo 1, Smaeil Ansari2
1- Department of Psychology, Mohaghegh Ardabili University, Ardabil, Iran
2- Hearing assessment clinic, Welfare Organization, Ardabil, Iran
Abstract:   (6455 Views)

Background and Aim: Hearing impairment is the most prevalent sensorineural defect in human. Epidemiological studies and the following preventive programs are the first steps to save many individuals from being handicapped and non-productive. Hereby, we aimed to study the prevalence of hearing impairment in Ardabil province and to assess the prevalent causes of hearing impairment in Ardabil.
Methods: In this study, 10718 cases were selected by random cluster sampling from rural and urban population in Ardabil province. Data was gathered using screening questionnaire, normal- and impaired-hearing individual questionnaire, and clinical audiometry. Statistical indices were calculated and data was analyzed using chi-square test.
Results: 7.1 per thousand individuals suffer hearing impairment and 4.3 per thousand are deaf. Hearing impairment was significantly more among villagers and aged individuals (p=0.46). However, there was no significant deference between two genders (p>0.05). Our results also showed significant deference in consanguineous marriage (p=0.031), accidents in pregnancy (p=0.007), older age of mother (p=0.007), parents hearing loss, severe illness during childhood (p=0.001), low family income (p=0.004), rural housing and educational level of parents (p=0.001) with hearing impairment.
Conclusion: Health status, economical, cultural and educational level of society are the most important factors associated with hearing impairment in Ardabil province. Consequently, extensive preventive programs are required to limit such factors.

Keywords: Deafness, hearing impairment, prevalence, causes, Ardabil
Full-Text [PDF 236 kb]   (2733 Downloads)    
Type of Study: Research |
Received: 2010/04/21 | Accepted: 2010/10/30 | Published: 2013/10/14
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Volume 20, Issue 1 (27 2011) Back to browse issues page
شنوایی شناسی - دانشگاه علوم پزشکی تهران Bimonthly Audiology - Tehran University of Medical Sciences
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