儿童智力低下是影响提高人口素质的重要因素。为了解我市儿童智力低下患病情况,分布特点、探讨其发病因素及防治规律,我们于1987年10月至1988年5月进行了流行病学调查工作。1 调查对象与方法1.1 调查地区及对象我们采取分层抽样的方法,在城、矿、农、牧区35个点进行调查。抽取8221名常住以上地区0～14岁的儿童为调查对象。实查7670名。1.2 智力低下判定首先做智力筛查:初生～5岁用丹佛发育筛查;5岁以上用绘人试验。b、智力诊断:对筛查可疑者进行智商评分。3岁以下儿童一心量表,4～6岁用Wppsl量表,7岁以上用WISC-R量表。后由技术骨干小组对智商低于75分以下者,进行效度符合和社会适应行为调查,最后作出判断。智力低下分型:根据 Children’s mental retardation is an important factor affecting the quality of the population. To understand the prevalence of mental retardation in children in our city, distribution characteristics, and explore its incidence and prevention and control of law, we conducted in October 1987 to May 1988 epidemiological survey. 1 Survey Subjects and Methods 1.1 Surveyed Areas and Subjects We conducted a survey using stratified sampling at 35 points in cities, mines, farming and pastoral areas. A total of 8221 children aged 0 ~ 14 years old were selected as the survey subjects. Actual investigation 7670. 1.2 mental retardation to determine the first intelligence screening: newborns ~ 5 years old with Denver development screening; 5 years old with a painted test. b, mental diagnosis: the scrutiny of the scoring IQ score. Children under 3 years old one-off scale, 4 to 6 years old with Wppsl scale, 7-year-old WISC-R scale. After the technical backbone of the group of IQ less than 75 points below the conduct of compliance and social adaptation behavior investigation, the final judgment. Mental retardation typing: According to