Iranian Journal of Public Health 2017. 46(9):1237-1246.

The Prevalence of Hearing Impairment by Age and Gender in a Population-based Study



Background: This study aimed to determine the prevalence of hearing impairment (HI) by age and gender in a population aged 5 yr and older residing in Tehran, Iran.

Methods: In this cross-sectional study, 140 clusters each including 10 households from Tehran, Iran were sampled between 2012 and 2013 using cluster random sampling. Trained audiologists examined the participants during face-to-face interviews. The hearing of the participants was evaluated before the removal of wax or other foreign bodies. In this study, HI was categorized as mild (grade 1, 26-40 db), moderate (grade 2, 41-60 db), severe (grade 3, 61-80 db), and deaf (grade 5, 81 db or more). All participants signed informed consent forms. The SATA software was used for data analysis.

Results: Of 6521 individuals, 4370 (67%) were interviewed. The prevalence of HI (auditory threshold of 0.5, 1, 2, 4 KHz and more than 25 db in the better ear) was 14.27 (11.53-17.91) of whom 9.52 (7.07-11.98) had grade 1, 4.04 (3.02-5.06) had grade 2, 0.67 (0.33-1.02) had grade 3 HI and 0.48 (0.16-0.8) were deaf. About 5.19% of the participants had disabling hearing impairment. All HI grades increased significantly with age but no significant difference was observed between men and women.

Conclusion: The considerable prevalence of HI in Iran in comparison with other developing countries, with regards to the trend of aging in the population, seems concerning. The results of the study could be used as a treatment and research guideline for future works in the area of policymaking and plan to decrease these disorders.




Prevalence, Hearing impairment, Epidemiology, Iran

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Timmer BH, Hickson L, Launer S (2015). Adults with mild hearing impairment: Are we meeting the challenge? Int J Audiol,54(11):786-95.

Organization WH. Global tuberculosis control: WHO report 2010: WHO; 2010.

Kiely KM, Gopinath B, Mitchell P, et al. (2012). Cognitive, health, and sociodemographic predictors of longitudinal decline in hearing acuity among older adults. J Gerontol A Biol Sci Med Sci,67(9):997-1003.

Mathers C, Smith A, Concha M (2000). Global burden of hearing loss in the year 2000. Global burden of Disease,18(1-30).

Mathers CD, Bernard C, Iburg KM, et al. (2003). Global burden of disease in 2002: data sources, methods and results. Bull World Health Organ.

Liu XZ, Xu LR, Sismanis A, et al. (2001). Epidemiological studies on hearing impairment with reference to genetic factors in Sichuan, China. Ann Otol Rhinol Laryngol,110(4):356-63.

Shargorodsky J, Curhan SG, Curhan GC, et al. (2010). Change in prevalence of hearing loss in US adolescents. JAMA, 304(7):772-8.

Wallhagen MI, Strawbridge WJ, Cohen RD, et al. (1997). An increasing prevalence of hearing impairment and associated risk factors over three decades of the Alameda County Study. Am J Public Health,87(3):440-2.

Uchida Y, Nakashima T, Ando F, et al. (2003). Prevalence of self-perceived auditory problems and their relation to audiometric thresholds in a middle-aged to elderly population. Acta Otolaryngol,123(5):618-26.

Lin FR, Thorpe R, Gordon-Salant S, et al. (2011). Hearing loss prevalence and risk factors among older adults in the United States. J Gerontol A Biol Sci Med Sci,66(5):582-90.

Niskar AS, Kieszak SM, Holmes A, et al. (1998). Prevalence of hearing loss among children 6 to 19 years of age: The Third National Health and Nutrition Examination Survey. Jama,279(14):1071-5.

Momi SK, Wolber LE, Fabiane SM, et al. (2015). Genetic and Environmental Factors in Age-Related Hearing Impairment. Twin Res Hum Genet,1-10.

Agrawal Y, Platz EA, Niparko JK (2009). Risk factors for hearing loss in US adults: data from the National Health and Nutrition Examination Survey, 1999 to 2002. Otol Neurotol,30(2):139-45.

Ahmed HO, Dennis JH, Ballal SG (2004). The accuracy of self-reported high noise exposure level and hearing loss in a working population in Eastern Saudi Arabia. Int J Hyg Environ Health,207(3):227-34.

Horikawa C, Kodama S, Tanaka S, et al. (2012). Diabetes and risk of hearing impairment in adults: a meta-analysis. J Clin Endocrinol Metab,98(1):51-8.

Cheng YJ, Gregg EW, Saaddine JB, et al. (2009). Three decade change in the prevalence of hearing impairment and its association with diabetes in the United States. Prev Med Rep,49(5):360-4.

Agrawal Y, Platz EA, Niparko JK (2008). Prevalence of hearing loss and differences by demographic characteristics among US adults: data from the National Health and Nutrition Examination Survey, 1999-2004. Arch Intern Med,168(14):1522-30.

Katbamna B, Crumpton T, Patel DR (2008). Hearing impairment in children. Pediatr Clin North Am,55(5):1175-88.

Lieu JE, Tye-Murray N, Fu Q (2012). Longitudinal study of children with unilateral hearing loss.Laryngoscope,122(9):2088-95.

Li C-M, Zhang X, Hoffman HJ, et al. (2014). Hearing impairment associated with depression in US adults, National Health and Nutrition Examination Survey 2005-2010. JAMA Otolaryngol Head Neck Surg,140(4):293-302.

Gurgel RK, Ward PD, Schwartz S, et al. (2014). Relationship of hearing loss and dementia: a prospective, population-based study. Otol Neurotol,35(5):775-81.

Lin FR, Ferrucci L, Metter EJ, et al. (2011). Hearing loss and cognition in the Baltimore Longitudinal Study of Aging. Neuropsychology,25(6):763.

Ciorba A, Bianchini C, Pelucchi S, et al. (2012). The impact of hearing loss on the quality of life of elderly adults. Clin Interv Aging,7(159.

Cruickshanks KJ, Wiley TL, Tweed TS, et al. (1998). Prevalence of hearing loss in older adults in Beaver Dam, Wisconsin the epidemiology of hearing loss study. Am J Epidemiol,148(9):879-86.

Stevens G, Flaxman S, Brunskill E, et al. (2013). Global and regional hearing impairment prevalence: an analysis of 42 studies in 29 countries. Eur J Public Health,23(1):146-52.

Islami Z, Baradaranfar MH, Mehrparvar AH, et al. (2013). Frequency of Hearing Impairment among Full-term Newborns in Yazd, Iran. Iran J Pediatr,23(3):349-52.

Absalan A, Pirasteh I, Dashti Khavidaki GA, et al. (2013). A Prevalence Study of Hearing Loss among Primary School Children in the South East of Iran. Int J Otolaryngol,2013(138935.

Al Khabori M, Khandekar R (2007). Unilateral hearing impairment in Oman: a community-based cross-sectional study. Ear Nose Throat J,86(5):274.

Abdel-Hamid O, Khatib OM, Aly A, et al. (2007). Prevalence and patterns of hearing impairment in Egypt: a national household survey. East Mediterr Health J,13(5):1170-80.

Lin C-Y, Yang Y-C, Leon Guo Y, et al. (2007). Prevalence of hearing impairment in an adult population in southern Taiwan. Int J Audiol,46(12):732-7.

Béria JU, Raymann BCW, Gigante LP, et al. (2007). Hearing impairment and socioeconomic factors: a population-based survey of an urban locality in southern Brazil. Rev. Panam. Salud Públ,21(6):381-7.

DAvIs AC (1989). The prevalence of hearing impairment and reported hearing disability among adults in Great Britain. Int J Epidemiol,18(4):911-7.

Hannula S, Mäki-Torkko E, Majamaa K, et al. (2010). Hearing in a 54-to 66-year-old population in northern Finland. Int J Au-diol,49(12):920-7.

Woodcock K, Pole JD (2008). Educational attainment, labour force status and injury: a comparison of Canadians with and without deafness and hearing loss. Int J Rehabil Res,31(4):297-304.

Cruickshanks KJ, Dhar S, Dinces E, et al. (2015). Hearing Impairment Prevalence and Associated Risk Factors in the Hispanic Community Health Study/Study of Latinos. JAMA Otolaryngol Head Neck Surg. 141(7):641-8.

Ross DS, Visser SN, Holstrum WJ, et al. (2010). Highly variable population-based prevalence rates of unilateral hearing loss after the application of common case definitions. Ear and hearing,31(1):126-33.

Olusanya B, Okolo A, Adeosun A (2004). Predictors of hearing loss in school entrants in a developing country. J Postgrad Med,50(3):173.

Sorri M, Roine R (2000). Age-adjusted prevalence of hearing impairment has significantly increased during the last two decades. Scand Audiol Suppl,54):5-7.

Parving A, Hein H, Suadicani P, et al. (1993). Epidemiology of Hearing Disorders Some Factors Affecting Hearing. The Copenhagen Male Study. Scand Audiol,22(2):101-7.

Davis A (1995). The prevalence and distribution of hearing impairment and reported hearing disability in the MRC Institute of Hearing Research’s National Study of Hearing. Hearing in adults London: Whurr Publishers Ltd.

Tucci DL, Merson MH, Wilson BS (2010). A summary of the literature on global hearing impairment: current status and priorities for action. Otol Neurotol,31(1):31-41.

Nelson DI, Nelson RY, Concha‐Barrientos M, et al. (2005). The global burden of occupational noise-induced hearing loss. Am J Ind Med,48(6):446-58.

Mehra S, Eavey RD, Keamy DG (2009). The epidemiology of hearing impairment in the United States: newborns, children, and adolescents. Otolaryngol Head Neck Surg,140(4):461-72.

Murthy GVS, Mactaggart I, Mohammad M, et al. (2014). Assessing the prevalence of sensory and motor impairments in childhood in Bangladesh using key informants. Arch Dis Child,99(12):1103-8.

Liu X, Xu L, Zhang S, et al. (1993). Prevalence and aetiology of profound deafness in the general population of Sichuan, China. J Laryngol Otol,107(11):990-3.

Van Naarden K, Decouflé P, Caldwell K (1999). Prevalence and characteristics of children with serious hearing impairment in metropolitan Atlanta, 1991–1993. Pediatrics,103(3):570-5.

Baille M-F, Arnaud C, Cans C, et al. (1996). Prevalence, aetiology, and care of severe and profound hearing loss. Arch Dis Child,75(2):129-32.

Nash SD, Cruickshanks KJ, Klein R, et al. (2011). The prevalence of hearing impairment and associated risk factors: the Beaver Dam Offspring Study. Arch Otolaryngol Head Neck Surg,137(5):432-9.

Cruickshanks KJ, Wiley TL, Tweed TS, et al. (1998). Prevalence of hearing loss in older adults in Beaver Dam, Wisconsin. The Epidemiology of Hearing Loss Study. Am J Epidemiol,148(9):879-86.

Maggi S, Minicuci N, Martini A, et al. (1998). Prevalence rates of hearing impairment and comorbid conditions in older people: the Veneto Study. J Am Geriatr Soc,46(9):1069-74.

Chia EM, Wang JJ, Rochtchina E, et al. (2007). Hearing impairment and health-related quality of life: the Blue Mountains Hearing Study. Ear Hear,28(2):187-95.

Lee DJ, Gomez-Marin O, Lam BL, et al. (2004). Trends in hearing impairment in United States adults: the national health interview survey, 1986-1995. J Gerontol A Biol Sci Med Sci,59(11):1186-90.

Helzner EP, Cauley JA, Pratt SR, et al. (2005). Race and sex differences in age‐related hearing loss: The Health, Aging and Body Composition Study. J Am Geriatr Soc,53(12):2119-27.

Khandekar R, Al Riyami A, Attiya M, et al. (2010). Prevalence and determinants of blindness, low vision, deafness and major bone fractures among elderly Omani population of Nizwa Wilayat (Nizwa elderly population study–2005). Indian J Ophthalmol,58(4):313.

Al Khabori M, Khandekar R (2004). The prevalence and causes of hearing impairment in Oman: a community-based cross-sectional study. Int J Audiol,43(8):486-92.

Mitchell RE (2006). How many deaf people are there in the United States? Estimates from the Survey of Income and Program Participation. J Deaf Stud Deaf Educ,11(1):112-9.

Westerberg BD, Lee PK, Lukwago L, et al. (2008). Cross-sectional survey of hearing impairment and ear disease in Uganda. J Otolaryngol Head Neck Surg,37(6):753-8.

Liu C, Bu X, Xing G, et al. (2006). [Epidemiologic study on hearing impairment and ear diseases in old people]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi,41(9):661-4.

Jun HJ, Hwang SY, Lee SH, et al. (2015). The prevalence of hearing loss in South Korea: Data from a population-based study. Laryngoscope,125(3):690-4.

Quaranta A, Assennato G, Sallustio V (1995). Epidemiology of hearing problems among adults in Italy. Scand Audiol Suppl,42(9-13.

Mattos LC, Veras RP (2007). The prevalence of hearing loss in an elderly population in Rio de Janeiro: a cross-sectional study. Rev Bras Otorrinolaringol,73(5):654-9.

Wilson D, Walsh P, Sanchez L, et al. (1999). The epidemiology of hearing impairment in an Australian adult population. Int J Epidemiol,28(2):247-52.

Wilson P, Fleming D, Donaldson I (1993). Prevalence of hearing loss among people aged 65 years and over: screening and hearing aid provision. Br J Gen Pract,43(406-9).

Karlsmose B, Lauritzen T, Parving A (1999). Prevalence of hearing impairment and subjective hearing problems in a rural Danish population aged 31–50 years. Br J Audiol,33(6):395-402.

Borchgrevink H, Tambs K, Hoffman H (2005). The Nord-Trondelag Norway audiometric survey 1996-98: unscreened thresholds and prevalence of hearing impairment for adults> 20 years. Noise Health,7(28):1.

Amedofu GK, Ocansey G, Antwi BB (2006). Characteristics of hearing-impairment among patients in Ghana. Afr J Health Sci,12(3):87-93.


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