中文摘要：

目的 了解大连市城市10~18岁学生5方面作息时间情况,为加强相关防控工作提供参考依据。方法 在4所小学、2所初中、2所高中,随机整群抽取小学高年级（4、5年级）、初中、高中学生各200名,调查写作业时间、校内外活动时间、夜间睡眠时间、看电视时间、上网时间。结果 男、女性别比较：写作业时间分别为2.21、2.33h（P〉0.05）,校内外活动时间分别为2.98、2.73h（P〉0.05）,夜间睡眠时间分别为7.67、7.65h（P〉0.05）,看电视时间分别为0.69、0.62h（P〉0.05）,上网时间分别为1.15、0.92h（P〈0.01）。小学高年级、初中、高中这3个学段比较：写作业时间分别为1.73、2.06、3.00h（P〈0.01）,校内外活动时间分别为3.81、2.77、2.02h（P〈0.01）,夜间睡眠时间分别为8.77、7.78、6.43h（P〈0.01）,看电视时间分别为0.94、0.68、0.36h（P〈0.01）,上网时间分别为0.98、1.16、1.01h（P〉0.05）。结论 随着学段的增高,写作业时间不断增加,校内外活动时间不断减少,夜间睡眠时间也不断减少,看电视时间不断减少,上网时间表现为各学段相差不大。性别比较,5种行为只有上网时间有差异,男生高于女生。

英文摘要：

Objective To understand the 5 aspects of daily schedule among the 10-18 year old students in Dalian city,so as to provide reference basis for the prevention and control. Methods In 4 primary schools, two junior high schools,2 senior high schools, a random cluster sampling method was used to select 200 each from the elementary school higher grades （grade 4,5） ,junior high school, senior high school students, to investigate their homework time, activity time at and out of school,sleep at night time,watching TV and Internet time. Results Male and female：home work time was 2.21h and 2.33h respectively （ P 〉0.05） ;activity time was 2.98h and 2.73 h （ P 〉0.05） ;sleep time was 7.67 h and 7.65 h （ P 〉0.05） ;TV time was 0.69 h and 0.62 h （ P 〉0.05） ;and Internet time was 1.15 h and 0.92 h respectively （ P 〈 0.01）. Among the elementary school higher grades,junior high school, and senior high school students： home work time was 1.73 h,2.06 h and 3.00 h respectively （ P 〈0.01）;activity time was 3.81 h,2.77 h and 2.02 h （ P〈0.01）;sleep time was 8.77 h,7.78 h and 6.43 h （ P〈0.01） ;TV time was 0.94 h,0.68 h and 0.36 h （ P 〈0.01）;and Internet time was 0.98 h,1.16 h and 1.01 h respectively （ P 〉0.05）. Conclusion With the increase of age,home work time is increasing,activity time, sleep time and TV time is decreasing, and Internet time has no significant difference. Between the males and females,only Internet time has difference,higher in males than that of females.