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Original Article

Prevalence and characteristics of tinnitus in older adults: the Blue Mountains Hearing Study: Prevalencia y características del acúfeno en adultos mayores: el Estudio de Audición Blue Mountains

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Pages 289-294 | Received 18 Jan 2002, Accepted 01 Jul 2002, Published online: 07 Jul 2009
 

Abstract

There have been few recent estimates of the prevalence of tinnitus from large population-based samples of older persons. Our study aimed to assess the prevalence and characteristics of prolonged tinnitus in a representative sample of 2015 adults aged 55–99 years, residing in the Blue Mountains, west of Sydney, Australia, during 1997–99. All participants underwent a detailed hearing examination by an audiologist, including comprehensive questions about hearing. After age adjustment, subjects reporting tinnitus had significantly worse hearing at both lower and higher frequencies (p < 0.001). This difference was more marked in younger than in older subjects (p < 0.05). Overall, 602 subjects (30.3%) reported having experienced tinnitus, with 48% reporting symptoms in both ears. Tinnitus had been present for at least 6 years in 50% of cases, and most (55%) reported a gradual onset. Despite tinnitus being described as mildly to extremely annoying by 67%, only 37% had sought professional help, and only 6% had received any treatment.

Existen pocas estimaciones recientes sobre la prevalencia de acúfeno calculada en una población amplía en personas mayores. Nuestro estudio tiene como objetivo conocer la prevalencia y las características de acúfeno de larga evolución en una muestra representativa de 2015 adultos de 55 a 99 años, residentes de Blue Mountains, al oeste de Sydney, Australia, de 1997 a 1999. Todos los participantes se sometieron a un examen audiológico detallado realizado por un audiólogo, que incluyó preguntas sobre la audición. Después de un ajuste etáreo se observó que los sujetos que manifestaban acúfeno tenían peores umbrales tanto en altas como en bajas frecuencias (p < 0.001). Esta diferencia fue más marcada en sujetos jóvenes que en viejos (p < 0.05). Un total de 602 sujetos (30.3%) reportaron haber experimentado acúfeno; 48% de ellos en forma bilateral. En 50% de los casos, el acúfeno tenía al menos 6 años de evolución y el 55% reportó un inicio gradual. Aunque el acúfeno fue descrito como mediana a extremadamente molesto en el 67% de los casos, sólo el 37% había buscado ayuda profesional y sólo 6%) había recibido algún tipo de tratamiento.

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