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1992年6月1日～7月15日,辽宁省妇幼保健系统对5个市的城乡、集体和散居40826例5岁以下儿童采用分层随机抽样方法进行了营养不良调查。结果中重度低体重、消瘦、发育迟缓3种表现类型的营养不良患病率分别为1.8％、1.8％、5.1％;各年龄组3种类型患病率间有极显著性差异(P<0.01);小年龄组患病率高于大年龄组;农村患病率高于城市。
From June 1 to July 15, 1992, the MCH system in Liaoning Province conducted a survey on malnutrition among 40,626 children under 5 years old in urban, rural, collective and diaspora in five cities by stratified random sampling method. Results The prevalence rates of malnutrition in the three manifestations of moderate to severe weight loss, weight loss and stunting were 1.8%, 1.8% and 5.1%, respectively. There were significant differences among the three types of prevalence among all age groups (P <0.01) ). The prevalence rate in the younger age group was higher than that in the older age group. The prevalence rate in rural area was higher than that in the urban area.