儿童营养不良的发生受多种因素的影响,且这些因素与疾病及因素之间的联系错综复杂,相互作用,相互影响。本文试用条件Logistic回归模型对学龄前儿童营养不良发生的影响因素进行多因素的综合分析,其目的是找出发病的主要因素,为优生优育,促进儿童身心健康提供科学依据。调查对象及评价方法我们于1990年7～9月份随机抽查了泰安市泰城691名3～6周岁儿童,男368人,女323人,独生子女占 The incidence of malnutrition in children is affected by many factors, and these factors and diseases and factors are intricately interrelated and interact with each other. In this paper, conditional Logistic regression model was used to comprehensively analyze the influencing factors of preschool children’s malnutrition. The purpose is to find the main factors of morbidity and provide scientific basis for prenatal and postnatal care and children’s physical and mental health. Subjects and Methods of Evaluation We conducted a random sample of 691 children aged 3-6 years in Taicheng, Tai’an from July to September 1990, with 368 males and 323 females, with only children