中学生尝试使用电子烟的影响因素分析：一项多中心横断面研究

目的 了解普通初高中在校生电子烟的使用情况，探究中学生尝试使用电子烟的影响因素，为预防中学生使用电子烟以及为电子烟监管提供科学建议。方法 采用多中心分层整群抽样在上海市、广州市和成都市的普通初中和高中在校生中选取调查样本。学生匿名自填纸质问卷。使用Epidata 3.1录入问卷并用SPSS 20.0对数据进行单因素和多因素统计分析。结果 共回收2 456份问卷，其中有效问卷2 405份，有效率97.9%。2 265位(94.2%)调查对象听过说电子烟，108位(4.5%)调查对象表示曾经使用过电子烟，其中38位(1.7%)调查对象表示在过去30天吸过电子烟。Logistic回归分析显示，吸过卷烟(OR=22.99，95%CI：11.34~46.63)、对电子烟感到好奇(OR=2.23，95%CI：1.02~4.88)、对电子烟持喜欢态度(OR=3.01，95%CI：1.34~6.77)、最好的5个朋友中有人吸电子烟(OR=3.20，95%CI：1.43~7.18)和认为吸电子烟不会被父母惩罚(OR=2.20，95%CI：1.09~4.47)是中学生尝试电子烟的危险因素。结论 三地在校中学生中，绝大多数听说过电子烟，部分学生尝试过电子烟。影响中学生尝试电子烟的因素有卷烟使用史、对电子烟好奇、喜欢电子烟、好朋友吸电子烟、认为吸电子烟不会受到父母惩罚。预防中学生尝试使用电子烟需要学校-家庭-社会的合作。

Influencing factors of middle and high school students’e-cigarette experimentation：a multi-center cross sectional study

Objective To understand the situation of e-cigarette use among middle and high school students，explore the factors that influencing their e-cigarette experimentation， and provide scientific evidence for further policies on supervision of e-cigarette among middle and high school students. Methods Multi-center stratified cluster sampling was applied in middle and high school students in Shanghai，Guangzhou and Chengdu. An anonymous self-administered questionnaire was distributed and collected in selected schools.Epidata 3.1 was used to input the data and SPSS 20.0 was used for all statistical analysis， including univariate and multivariate analysis. Results A total of 2 456 valid questionnaires were collected， with 2 405 valid questionnaires and an effective rate of 97.9%.Among them，2 265 (94.2%) respondents had heard of e-cigarette，108 (4.5%) had used e-cigarette，among which 38 (1.7%) had smoked e-cigarette in the past 30 days. Logistic regression analysis showed that ever used e-cigarette (OR=22.99，95%CI：11.34-46.63)，be curious about e-cigarette (OR=2.23，95%CI：1.02-4.88)，fond attitudes towards e-cigarette (OR=3.01，95%CI：1.34-6.77)，anyone among the five best friends used e-cigarette (OR=3.20，95%CI：1.43-7.18)，and wouldn’t be punished by parents for using e-cigarette (OR=2.20，95%CI：1.09-4.47) were risk factors of e-cigarette experimentation. Conclusion Most of the middle and high school students had heard of e-cigarette，and some of them had used e-cigarette. The factors influencing e-cigarette experimentation among middle and high school students included cigarette use history， curiosity about e-cigarette，fond attitudes towards e-cigarette，anyone among the five best friends used e-cigarette，and wouldn’t be punished by parents for using e-cigarette.Preventing middle and high school students from e-cigarette requires cooperation among the schools， families and society.