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目的了解广州市城区中学生二手烟暴露现状及其影响因素,为制定有效的校园控烟策略提供科学依据。方法采用多阶段分层整群抽样方法,在广州市越秀区抽取7所学校的3 575名非吸烟中学生进行二手烟暴露情况问卷调查。结果中学生二手烟暴露率为59.7%,其中公共场所、家里、学校二手烟暴露率分别为49.5%,34.5%,10.7%。多因素Logistic回归分析显示,家里二手烟暴露的影响因素有父亲吸烟、好朋友吸烟、同学吸烟和家里控烟情况;学校二手烟暴露的影响因素有性别、同学吸烟、教师吸烟和好朋友吸烟;公共场所二手烟暴露的影响因素有性别、每月零花钱、父亲吸烟、好朋友吸烟、同学吸烟(P值均<0.05)。结论公共场所和家里是广州市城区中学生二手烟暴露的重点场所,周围人群吸烟是二手烟暴露的危险因素,家里完全禁烟是有效降低二手烟暴露的关键措施。
Objective To understand the status quo of secondhand smoke exposure and its influencing factors among middle school students in Guangzhou City and provide a scientific basis for formulating an effective campus tobacco control strategy. Methods A total of 3 575 non-smoking middle school students from 7 schools in Yuexiu District of Guangzhou City were surveyed by questionnaire using the multi-stage stratified cluster sampling method. Results The exposure rate of secondary smoke to secondary school students was 59.7%. The exposure rates of secondhand smoke in public places, homes and schools were 49.5%, 34.5% and 10.7% respectively. Multivariate logistic regression analysis showed that the influencing factors of secondhand smoke exposure in the home were father smoking, good friend smoking, students smoking and tobacco control at home. The influencing factors of secondhand smoke exposure in school were gender, classmate smoking, teacher smoking and good friend smoking. Public The influencing factors of exposure to secondhand smoke are gender, monthly pocket money, father smoking, good friend smoking and classmate smoking (all P <0.05). Conclusion Public places and homes are the second-hand smoke exposure of secondary school students in Guangzhou urban areas. Smoking in surrounding areas is a risk factor for exposure to secondhand smoke. Complete banning of smoking at home is the key measure to reduce exposure to secondhand smoke.