Hearing loss among the elderly at a geriatric centre in south‑west Nigeria

Abstract

Background: Aging is an unavoidable process that is connected with several health issues, including presbycusis, a degenerative disease of the cochlear hair cells and central auditory pathways with a resultant reduction in hearing acuity. In developing countries like Nigeria, little attention is given to the elderly population with possible underreporting of presbycusis, hence the need for this study. Aim: The aim of this study was to investigate hearing loss, the type, and associated risk factors among the elderly attending a geriatric clinic in South‑west Nigeria. Patients, Materials and Methods: It was a cross‑sectional study of patients aged 60 years and above in a geriatric centre. All consented participants were given a structured questionnaire to collect important data such as demographics, history of hearing loss, family history of hearing loss, risk factors, and so on. Ear examinations, otoscopy, pure‑tone audiometry, distortion‑product otoacoustic emissions, and tympanometry were also performed on all patients. Results: Ninety‑five participants, comprising 33 males and 62 females, were recruited, and their ages ranged from 60 to 89 years (74.5 ± 7.6 years). The mean pure‑tone average was 42.2 dB ± 17.4 and 39.21 dB ± 17.4 in the right and left ears, respectively. About 80% of them have a hearing threshold above 15 dB, with 13 (13.7%) being conductive hearing loss, 48 (50.6%) sensorineural hearing loss, and 15 (15.8) mixed hearing loss. Presbycusis was diagnosed in 37 (38.9%) participants. There was a significant correlation between the pure‑tone average and distortion‑product otoacoustic emissions results in both ears of the participants (P = 0.0001). Tympanograms were abnormal in 21 (22%) right ears and 27 (28%) left ears. Conclusion: Hearing loss is highly prevalent among the elderly, with presbycusis being the most common type. Periodic hearing screening for the elderly is hereby recommended.