论文部分内容阅读
为探讨引起儿童低体重的病因,并为制定相应的干预措施提供依据,以降低营养不良患病率,我们于1997年1～3月对吉林省2市1县的部分5岁以下体重低下儿童进行了病例对照研究。1 材料与方法
In order to explore the etiopathogenisis of low birth weight and to provide the basis for formulating corresponding interventions to reduce the prevalence of malnutrition, we investigated the prevalence of underweight children under 5 years old in 1 county and 2 counties in Jilin Province from January to March 1997 A case-control study was conducted. 1 materials and methods