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儿童少年生长发育调查的样本含量,哈尔滨医科大学主编的《儿童少年卫生学》根据过去调查经验,推荐7～17岁男女共分22个组,7～9岁每组100人,10～17岁每组150～175
According to past survey experience, the sample content of the child and youth juvenile growth and development survey was recommended by the Harbin Medical University. According to past survey experience, it is recommended that men and women aged 7-17 should be divided into 22 groups, and 7-9 years old should be 100 in each group and 10-17 years old. 150 to 175 per group