1997年 4月— 5月对 2 5 40名阜阳市中小学生的营养状况进行了调查分析 ,现报告如下。1　对象和方法采用整群抽样的方法 ,随机抽取 4所小学、3所中学 7—18岁中小学生 2 5 40名作为调查对象 ,其中小学生 132 6名 ,中学生 12 14名 ,男生 12 6 4名 ,女生 12 76名。按照《学校卫生 From April to May 1997, the nutritional status of 2540 primary and secondary school students in Fuyang City was investigated and analyzed as follows. 1 Subjects and methods A cluster sampling method was used to randomly select 4 primary schools and 3 secondary schools, 2 5 40 secondary and primary school students aged 7-18 as survey subjects, including 132 6 primary students, 12 14 secondary students and 12 6 4 boys , 1276 girls. Follow "School Hygiene