Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.14/188665
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- Title
- Incidence, persistence, and progression of tinnitus symptoms in older adults : the Blue Mountains hearing study
- Related
- Ear and hearing, Vol. 31, Issue 3, (2010), p.407-412
- DOI
- 10.1097/AUD.0b013e3181cdb2a2
- Publisher
- Lippincott Williams & Wilkins
- Date
- 2010
- FoR/RFCD Code(s)
-
110300 Clinical Sciences
- Author/Creator
- Gopinath, Bamini
- Author/Creator
- McMahon, Catherine M
- Author/Creator
- Rochtchina, Elena
- Author/Creator
- Karpa, Michael J
- Author/Creator
- Mitchell, Paul
- Description
- Objective: Temporal population-based data on tinnitus are lacking. We used a representative older population-based cohort to establish 5-yr incidence, persistence, and progression of tinnitus symptoms. Design: Two thousand six participants of the Blue Mountains Hearing Study (1997-1999) had complete tinnitus data, and of these, 1214 participants were followed up at 5-yr examinations in 2002-2004. Presence of prolonged tinnitus was assessed by a positive response to a single question administered by an audiologist. Incident tinnitus was defined in participants who were free of tinnitus symptoms at the baseline study in 1997-1999 but who reported tinnitus symptoms at the 5-yr follow-up in 2002-2004. Progression of tinnitus was defined as the increase in annoyance of tinnitus symptoms from baseline to the 5-yr follow-up study. Persistence of tinnitus symptoms was defined as the presence of tinnitus symptoms at both the baseline and follow-up examinations. Hearing impairment was measured as the pure-tone average (PTA) of audiometric hearing thresholds at 500, 1000, 2000, and 4000 Hz (PTA0.5-4 kHz), defining bilateral hearing loss as PTA0.5-4 kHz >25 dB HL. Results: Five-year incidence of tinnitus was 18.0%. A significant age trend was observed for the 5-yr incidence (p = 0.005), with incident tinnitus decreasing with age. Hearing loss increased the risk of developing incident tinnitus, age-sex adjusted odds ratio 2.13 (95% confidence interval, 1.40 to 3.24). Most (55.5%) incident tinnitus cases reported symptoms that were only mildly annoying. Tinnitus at baseline persisted in 81.6% of participants. Of those reporting mildly annoying tinnitus at baseline, 39.6% progressed to moderately annoying and 5.9% to severely annoying tinnitus. At the follow-up, a higher frequency of participants with persistent tinnitus (old cases) reported their symptoms as very/extremely annoying compared with the new (incident) cases of tinnitus (p = 0.01). A high proportion (85.2%) of subjects receiving tinnitus treatment (mainly medications and hearing aid) at baseline still reported tinnitus at 5-yr examinations. Conclusions: Incident tinnitus was frequent, with nearly one in five older adults suffering from this condition after 5 yrs. Tinnitus symptoms persisted in more than three-quarters of the cohort, during the 5 yrs. Longitudinal data are an important contribution to the research evidence base to support timely intervention and effective management of this frequent symptom.
- Description
- 6 page(s)
- Subject Keyword
- 110300 Clinical Sciences
- Resource Type
- journal article
- Organisation
- Macquarie University. Dept. of Linguistics
- Identifier
- http://hdl.handle.net/1959.14/188665
- Identifier
- ISSN:0196-0202
- Identifier
- mq-rm-2010004075
- Language
- eng
- Reviewed
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