McIntire Russell K, Nelson Ashlyn A, Macy Jonathan T, Seo Dong-Chul, Kolbe Lloyd J
Department of Applied Health Science, Indiana University School of Public Health-Bloomington, 1025 East 7th Street, Room 116, Bloomington, IN 47405, USA.
School of Public and Environmental Affairs, Indiana University, 1315 East Tenth Street Bloomington, IN 47405, USA.
Addict Behav. 2015 Sep;48:36-43. doi: 10.1016/j.addbeh.2015.04.009. Epub 2015 Apr 25.
Secondhand smoke (SHS) exposure is responsible for numerous diseases of the lungs and other bodily systems among children. In addition to the adverse health effects of SHS exposure, studies show that children exposed to SHS are more likely to smoke in adolescence. Susceptibility to smoking is a measure used to identify adolescent never-smokers who are at risk for smoking. Limited research has been conducted on the influence of SHS on susceptibility to smoking. The purpose of this study was to determine a robust measure of the strength of correlation between SHS exposure and susceptibility to smoking among never-smoking U.S. adolescents. This study used data from the 2009 National Youth Tobacco Survey to identify predictors of susceptibility to smoking in the full (pre-match) sample of adolescents and a smaller (post-match) sample created by propensity score matching. Results showed a significant association between SHS exposure and susceptibility to smoking among never-smoking adolescents in the pre-match (OR=1.47) and post-match (OR=1.52) samples. The odds ratio increase after matching suggests that the strength of the relationship was underestimated in the pre-match sample. Other significant correlates of susceptibility to smoking identified include: gender, race/ethnicity, personal income, smoke-free home rules, number of smoking friends, perception of SHS harm, perceived benefits of smoking, and exposure to pro-tobacco media messages. The use of propensity score matching procedures reduced bias in the post-match sample, and provided a more robust estimate of the influence of SHS exposure on susceptibility to smoking, compared to the pre-match sample estimates.
儿童接触二手烟（SHS）会引发肺部及身体其他系统的多种疾病。除了接触二手烟对健康产生的不良影响外，研究表明，接触二手烟的儿童在青春期更有可能吸烟。吸烟易感性是一种用于识别有吸烟风险的青少年非吸烟者的指标。关于二手烟对吸烟易感性影响的研究有限。本研究的目的是确定美国非吸烟青少年中二手烟暴露与吸烟易感性之间关联强度的可靠指标。本研究使用了2009年全国青少年烟草调查的数据，以确定青少年全样本（匹配前）和通过倾向得分匹配创建的较小样本（匹配后）中吸烟易感性的预测因素。结果显示，在匹配前样本（OR = 1.47）和匹配后样本（OR = 1.52）中，非吸烟青少年的二手烟暴露与吸烟易感性之间存在显著关联。匹配后优势比增加表明，匹配前样本中这种关系的强度被低估了。确定的其他吸烟易感性显著相关因素包括：性别、种族/族裔、个人收入、无烟家庭规则、吸烟朋友数量、对二手烟危害的认知、对吸烟益处的认知以及接触支持烟草的媒体信息。与匹配前样本估计相比，倾向得分匹配程序的使用减少了匹配后样本中的偏差，并对二手烟暴露对吸烟易感性的影响提供了更可靠的估计。
