Departmental Bulletin Paper コミュニケーション障害の疫学 : 音声言語・聴覚障害の有病率と障害児者数の推定

苅安, 誠  ,  外山, 稔  ,  松平, 登志正

Description
Communication disorders have a variety of etiologies, and the number of persons with defectivespeech-language and hearing is needed to provide the demand-supply models and quality educationfor speech and hearing specialists. In this paper, the prevalence and the estimated numberof persons with speech-language and hearing disorders in the world and in Japan are reviewed,then the estimated number of communication disabled in Japan is reported. The total estimatednumber of communication disabled in million is 29.0, composed of 0.7 for stuttering, 1.2 for languagedisorders, 7.5 for voice disorders, 18.7 for hearing disorders, and 0.8 for speech-articulation disorders,including “mild” cases.
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