目的了解郑州市中学生吸烟行为及其影响因素,为降低中学生吸烟率提供科学依据。方法采用分层随机整群抽样方法,对郑州市4所初中6所高中共计1 987名学生基本情况及吸烟行为进行调查,对尝试吸烟影响因素采用非条件logistics回归进行分析。结果有26.4%的学生尝试过吸烟;有15.8%学生抽完1整支烟,抽烟原因中,第1位为好奇,其次为心情不好;尝试吸烟的危险因素为近7d内当面吸烟天数和年级。结论郑州市中学生尝试吸烟比例较高,应通过学校、家庭、社会等方面进行努力,降低中学生吸烟率。 Objective To understand the smoking behavior and its influencing factors among middle school students in Zhengzhou and provide a scientific basis for reducing the smoking rate among middle school students. Methods A stratified random cluster sampling method was used to investigate the basic situation and smoking behaviors of a total of 1 987 students from 6 high schools in 4 junior high schools of Zhengzhou City. The influencing factors of smoking cessation were analyzed by non-conditional logistic regression. As a result, 26.4% of students tried smoking. 15.8% of students smoked one cigarette. Among the reasons for smoking, No. 1 was curious, followed by a bad mood. The risk factors for smoking were the number of smokers and grade. Conclusion High proportion of middle school students in Zhengzhou try smoking. Schools, families and the society should try their best to reduce the smoking rate among middle school students.