全国調査によるメニエール病有病率の推定 : 調査方法

概要

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In order to estimate the prevalence of Menieres disease, nation-wide surveys were designed. The surveys consist of two parts, primary and secondary. In regard to primary survey, questionaires were sent to totaling 4038 clinics in the hospitals with more than 200 beds in Japan. The number of departments of clinics were as follows : 1049 otolaryngology, 1834 internal medicine, 685 brain surgery, 262 neurology, 138 psychosomatic medicine and 10 geriatricts. A questionnaire form of primary survey was quite simple only requested to answer number of patients of Menieres disease in each clinic.<BR>Response rate was 29.8% in the departments of otolaryngology, and 19.5% in other departments during two months after sending questionnaires.<BR>After asking for answer to the primary survey again, the secondary survey will be carried out. Necessary items such as sex, age and other information for analysis will be added in the secondary survey in order to clarify the epidemiological picture of Menieres disease.