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据有关资料统计:我国约有患先天愚型遗传病者200万、各种精神分裂症者200万、各种智力发育不全者400万。国内的一项调查(《大众医学》第五期)发现:遗传性家族性耳聋在学令儿童中发生率高达1/600～1/1200,男性色盲发生率在5%以上,女性不足1%;武汉市177,057名12岁以下儿童中,24.38%有遗传病;在黑龙江省116,105名14岁以下儿童中,遗传病患者占13%,其中先天性心脏病和智力低下者分别为4.04‰和4.17‰。这样看来,全国各种遗传性疾病患者总数不下千万.
According to relevant statistics, there are about 2 million idiopathic hereditary diseases in our country, 2 million various schizophrenia patients and 4 million all kinds of mental retardation. A national survey (“Vital Medicine”, Issue 5) found that hereditary familial deafness affects as many as 1/600 to 1/1200 children in schooling, more than 5% for men and less than 1% for women. Of the 177,057 children under the age of 12 in Wuhan, 24.38% had genetic diseases; in Heilongjiang Province, 116,105 children under the age of 14 accounted for 13% of genetic diseases, of which 4.04% and 4.17% were congenital heart disease and mental retardation respectively . In view of this, the total number of all kinds of genetic diseases in the country is less than 10 million.