Middle-ear disease in Indians of the Mount Currie Reservation, British Columbia.
Complete otological examinations, including audiograms, were carried out on 504 British Columbia Indians of the Mount Currie Reservation. Of these, 79 were found to have evidence of current middle ear pathology, while 226 were known to have had previous disease. Among 364 subjects who could be formally tested, 112 had a 15-decibel or greater hearing loss in the speech frequencies. Among these Indians, middle-ear disease began early in life and recurrences were frequent. The prevalence of aural disease was related to poor social conditions, family history and presence of nasal discharge. No other relationships could be demonstrated, and there was no evident benefit from adenotonsillectomy. No secretory otitis or otosclerosis and almost no sensorineural high-tone hearing loss were discovered.
D002170:Canada; D004427:Ear Diseases / Q000453:epidemiology*; D004432:Ear, Middle; D006801:Humans; D007198:Indians, North American
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