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1前言在我国听力言语残疾居五类残疾之首,(占全国人口的 16.79%)。0-7岁的聋哑儿童约74万,且以每年约2-4 万新发生的聋儿递增。国外正常新生儿中双侧听力障碍的发生率约1%-3%,而国内发生率为3%,在经过重症监护病房抢救的新生儿中,听力障碍发生率高达22.6%,其中重度以上者1%。
1 Preface In our country, hearing, speech and disability ranks the first of the five disability categories (accounting for 16.79% of the total population). About 740,000 deaf and mute children aged 0-7 are reported to increase their number of deaf children by about 240,000 new births each year. The incidence of bilateral hearing loss in foreign normal newborns is about 1% -3%, while the incidence in China is 3%. The incidence of hearing impairment is 22.6% in neonates rescued through intensive care unit, 1%.