北京市城区和郊区中学生身体情况的差异性分析

目的探究北京市中学生身体情况是否存在城郊差异。方法对2007年北京市19区县中招体检数据、高招体检数据进行对比分析。结果北京市中学生身体情况在身高、体重、视力方面存在城郊差异（P〈0．05）。北京市高三毕业男生身高（t=2．617，P=0．018）、超重发生率（t=4.650，P=0．000）存在城郊差异。北京市高三毕业女生身高存在城郊差异（t=2.321，P=0，001）。北京市初三毕业生视力状况存在城郊差异（t=2．321，P=0.033）。结论过重的学习负担和不健康的生活方式对中学生身体状况存在着负面影响，必须进行干预。

A comparative analysis on differences in school students health between urban and suburban areas in Beijing

Objective To explore whether differences in high school student health exist between urban and suburban areas in Beijing. Metheds To make comparative analysis on the related data collected from the physical examinations conducted in the 19 districts in Beijing for senior high school admission and college admission in 2007. Results Differences in student health （ including height, weight, eyesight） exist between urban and suburban areas in Beijing. There is significant difference in eyesight （ t = 2. 321, P = 0. 033 ） between urban and suburban junior school graduates in Beijing. There are significant differences in height （t = 2.617,P = 0. 018 ） and the incidence of overweight （ t = 4. 650, P = 0. 000 ） between urban and suburban boys junior school graduates. There is significant difference in height （ t = 3. 792, P = 0. 001 ） between girls. Conclusions The health condition of high school students is being affected by the overloaded study tasks and unhealthy lifestyle,which needs to be intervened.