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为了解我市中小学生近十年来生长发育水平的变化,于1988年9～10月,对全市中小学采取整群分层抽样,抽得10所小学、7所中学,对在校学生(6～17岁)进行了形态发育调查,获有效卡片10724张,又在其中再随机抽取4858张(男2337张,女2521张)。按1984年《中国学生体质、健康调查研究》手册进行了测定,并
In order to understand the changes of the growth and development level of primary and secondary school students in our country in recent ten years, from September to October 1988, stratified sampling was conducted on primary and secondary schools in the city. 10 elementary schools and 7 secondary schools were drawn, ~ 17 years old) conducted morphological development survey, obtained valid card 10,724, and then randomly selected 4858 (male 2,337, female 2,521). According to the 1984 “Chinese students physique, health survey research” manual was measured, and