Epidemiological Studies of Meniere's Disease in Toyama Prefecture:in Comparison with the Findings of 2nd Nation-wide Survey

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After the last Survey of Meniere's disease in Toyama Prefecture, 169 new cases of Meniere's disease were diagnosed in 1982 by the same 779 members or clinics of the Toyama Medical Association and listed in the intractable disease category.Questionnaires were sent to these patients, and the replies received from 70 of them analyzed epidemiologically and clinically and the results were compared with those of 520 cases of Meniere's disease, registered as definite Meniere's disease in the 2nd nation-wide survey by the Meniere's Disease Research Committee of Japan from 1974-1976.The following characteristic epidemiological and clinical features of Meniere's disease were noted in Toyama Prefecture:1) The incidence of Meniere's disease was 17.4 per 100, 000 population as registered by the Members of the Toyama Medical Association in 1974/1979 and in 1982.2) Sex-ratio: There were 107 males and 385 females.3) Age distribution: The age distribution peaked 50-59 years for males and 60-69 years for females.4) There were more patients in the cities of east Toyama prefecture than in the rural areas of west Toyama.5) Season and time onset: There was no high incidence of vertiginous attacks in the seasons. and a high incidence with peaks 4:00-8:00 and 12:00-16:00.6) Family history: Six (9.2%) of the 70 patients had a close relative with Meniere's disease.7) Dizzy attacks of Meniere's disease were more common in Toyama Prefecture characteristic than in the 2nd nation-wide survey.
耳鼻咽喉科臨床学会の論文

Epidemiological Studies of Meniere's Disease in Toyama Prefecture:in Comparison with the Findings of 2nd Nation-wide Survey

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