江苏省青少年烟草广告暴露情况与吸烟易感性分析

Exposure to tobacco advertising and smoking susceptibility among teenagers of Jiangsu Province in 2013

目的了解江苏省2013年青少年烟草广告暴露情况及其与吸烟易感性的关系,为更有效地禁止青少年过早养成吸烟习惯提供基础数据。方法 2013年9—11月,采用多阶段分层整群随机抽样方法在江苏省14个监测点抽取5 697名初中在校学生进行自填问卷调查,对烟草广告暴露情况进行加权分析估计率及其95%CI,非吸烟学生易感性与烟草广告之间的关系采用多因素非条件Logistic回归分析。结果过去30 d内,青少年烟草广告暴露率为46.7%(95%CI=44.0%~49.3%),男生(48.5%)大于女生(44.4%)(χ~2=9.63,P=0.04)。烟草广告渠道暴露前3位的分别为电视(19.3%)、户外广告牌(19.1%)和烟草零售店(17.4%)。在非吸烟青少年中,暴露于烟草广告者烟草易感性(10.4%)高于未暴露者(4.9%)(χ~2=54.6,P<0.01)。暴露的烟草广告媒介越多,吸烟易感性就越高,暴露于4种以上广告渠道者未来烟草易感的OR值为3.67(95%CI=2.65~5.09)。结论青少年广泛暴露于烟草广告中,烟草广告暴露会增加不吸烟青少年的吸烟易感性。

Objective To evaluate exposure to tobacco advertisement and its relation to smoking susceptibility among teen- agers of Jiangsu Province in 2013. Methods From September to November of 2013, 5 697 middle school students were selected from 14 surveillance areas using multistage stratified clustering random sampling and were investigated with self-administered ques-tionnaires. Weight analysis was used to estimate prevalence （95%CI） of exposure to tobacco advertisement. Relationship between exposure to tobacco advertisement and smoking susceptibility was analyzed by muhivariable logistic regression. Results In the past 30 days, the prevalence of exposure to tobacco advertisement was 46.7%（95%CI= 44.0%-49.3%） among teenagers, boys higher than girls （48.5% vs 44.4%, P=0.04）. The top 3 media channels of tobacco advertising were television （19.3%）, outdoor advertising board （19.1%）, and tobacco stores （17.4%）. Smoking susceptibility of non-smoking teenagers with exposure to tobacco advertisement was higher than those without exposure （ 10.4% vs 4.9%, X^2 = 54.6, P〈0.01）. Smoking susceptibility increased with the numbers of exposure sources. Teenager exposed by more than four sources of exposure has highest susceptibility in the future （ OR = 3.67, 95%CI= 2.65-5.09）. Conclusion Exposure to tobacco advertising is prevalent in teenagers. Exposure to tobacco advertisement increases the risk of smoking susceptibility among non-smoking teenagers.