１９９７年９～１１月，我县接受中国残联和瑞典政府智力残疾预防与康复合作项目，采用ＰＰＳ抽样法，抽查５个乡２６个自然村的０～６岁儿童２６９４名进行筛查，筛查率为９８２９％。智力筛查参照丹佛发育筛查法进行。共筛查出阳性３０２名，阳性率为１１２１％。其... From September to November 1997, our county accepted the cooperation project of intellectual disability prevention and rehabilitation between CDPF and Swedish government. Using PPS sampling method, 2694 children aged 0 ~ 6 in 26 villages in 5 townships were screened and screened The rate was 9829%. Mental screening is based on Denver Development Screening. A total of 302 positive screening, the positive rate was 1121%. its...