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1990年我们选择人均年收人在300元以下的淮滨县农村，采用全国统一方法，对799名学龄前儿童进行了健康检查，80名进行了家庭调查和膳食调查，同时进行了社区调查，结果表明，我区农村学龄前儿童存在以下营养问题：（1）体格发育差，身材矮小发生率为15．9％，低体重儿发生率为1
In 1990, we selected the rural areas in Huaibin County, where annual per capita income was less than 300 yuan per capita. We conducted a national health check on 799 preschool-aged children using a unified national methodology. Eighty of them conducted family and dietary surveys, conducted community surveys, The results showed that the preschool children in rural areas of our region the following nutritional problems: (1) poor physical development, short stature was 15.9%, the incidence of low birth weight children was 1