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1997年11月至1998年2月对马鞍山市所属4个城区、6个乡镇500例聋哑人进行了调查。现就其发病率、致聋原因及预防意见报告如下。资料及方法一、一般资料男298人,女272人,年龄13~82岁;工人180人农民250人;已婚430人,未婚70人。二、调查方法依据耳聋及语言障碍程度按照残联残疾鉴定三个级别来鉴定。Ⅰ级残听力损失90分贝以上,不能表达语言;Ⅱ级残为听力损失70分贝以上,仅能单词发音;Ⅲ级残为听力损失50分贝以上,仅能含糊不清晰的简单语言。
From November 1997 to February 1998, 500 deaf and mute people in 4 towns and 6 towns in Maanshan City were investigated. Now on its incidence, causes of deafness and prevention opinions are as follows. Materials and Methods I. General information Male 298, female 272, aged 13 to 82 years; workers 180 farmers 250; married 430 people, 70 unmarried. Second, the survey method based on the degree of deafness and language barriers identified in accordance with the CDPF three levels of disability identification. Class I residual hearing loss of 90 dB or more, can not express language; Ⅱ grade residual hearing loss of 70 dB or more, only the word pronunciation; Ⅲ grade residual hearing loss of 50 dB or more, only ambiguous simple language.