【摘要】 1987年四川省采用分层、1.4‰等概率比例及整群抽样方法,进行了智力残疾人抽样调查,共调查145 201人,智力残疾2 342人,现患率为16,13‰。调查表明智力残疾人现患率在不同性别、民族间无显著性差异(P>0,05)。学龄期儿童现患率为其他年龄组的3倍左右,经济文化水平越落后的地区,智力残疾现患率越高,轻度智力残疾者是极重度者的16,4倍,智力残疾原因除不详因素外,遗传性疾病最高,其他依次为脑炎,脑膜炎,营养不良等。更多还原

【Abstract】 From first April to 15th May 1987,145 201 people were investigated by usingthe ways of layer, equal probability andmass sampling.Two thousand three hundredand forty two of them were confirmed tobe mentally deficient. The incidence was16.13‰.It was estimated that 1665000 peo-ple have mental deficiency in Sichuan. Theestimated range of reliability of 95% was1528000-1801000. One million and threehundred ninety three thousand of themonly had mental deficiency, while 272000had othet organic deficiency. Male:femaleratio was 101.4:100. The incidence of 6-14year-old was 38.14‰, which was 3 timeshigher than that of other age groups. Mildmental deficiency was 16.4 times morethan severe mental deficiency. The mostcommon causes were hereditary diseases,encephalitis, malnutrition,cerebral trauma,pregnant diseases, etc.All of the causesbelonged to preventable diseases.更多还原