Leatherdale Scott T, Ahmed Rashid
Department of Population Studies and Surveillance, Cancer Care Ontario, 620 University Avenue, Toronto, ON M5G 2L7, Canada.
Cancer Causes Control. 2009 Aug;20(6):855-65. doi: 10.1007/s10552-009-9306-2. Epub 2009 Feb 15.
The present study examines second-hand smoke (SHS) exposure and the beliefs youth have about being exposed to SHS in their home and in cars and explores changes in exposure and beliefs over time.
Nationally representative data from the 2006 Youth Smoking Survey (YSS) were used to examine youth exposure to smoking and beliefs about smoking in the home and car among 71,003 Canadian youth in grades 5-12. Gender-specific logistic regression models were conducted to examine if being exposed to smoking at home or in the car were associated with the beliefs youth have about either smoking around kids at home or smoking around kids in cars.
In 2006, 22.1% of youth in grades 5-12 were exposed to smoking in their home on a daily or almost daily basis and 28.1% were exposed to smoking while riding in a car at least once in the previous week. The majority of youth reported that they do not think smoking should be allowed around kids at home (88.3%) or in cars (88.4%). Youth exposed to smoking in the home or in cars reported missing substantially more days of school in the previous month because of their health. Among both male and female youth, being an ever smoker, living in a house where someone smokes inside daily, and having ridden in a car with someone who was smoking cigarettes in the past seven days were all associated with being more likely to report that smoking should not be allowed around kids at home or in cars. Compared to their male counterparts, female youth with at least one parent who smokes were more likely to report that smoking should not be allowed around kids at home or in cars. As rates of SHS exposure in the home and car decreased between 2004 and 2006, the prevalence of youth who reported that they do not think smoking should be allowed around kids at home or in cars also decreased over the same period of time.
These results highlight that Canadian youth are frequently exposed to SHS in their homes and in cars despite the fact that the vast majority of youth do not think smoking should be allowed around kids in those locations. Considering the health and social consequences associated with SHS exposure, it may be a timely opportunity to move forward with programs and policies designed to prevent individuals from smoking around youth in these locations.
本研究调查二手烟（SHS）暴露情况以及青少年对于在家中和车内接触二手烟的看法，并探讨暴露情况和看法随时间的变化。
使用2006年青少年吸烟调查（YSS）的全国代表性数据，调查71,003名5至12年级的加拿大青少年在家中和车内接触吸烟的情况以及对吸烟的看法。进行了按性别分类的逻辑回归模型分析，以检验在家中或车内接触吸烟是否与青少年对于在家中孩子周围吸烟或在车内孩子周围吸烟的看法相关。
2006年，5至12年级的青少年中，22.1%的人每天或几乎每天在家中接触吸烟，28.1%的人在前一周至少有一次乘车时接触吸烟。大多数青少年表示，他们认为在家中（88.3%）或车内（88.4%）不应允许在孩子周围吸烟。在家中或车内接触吸烟的青少年报告称，由于健康原因，上个月缺课天数大幅增加。在男性和女性青少年中，曾经吸烟、生活在有人每天在家中吸烟的房子里以及在过去七天内曾与吸烟的人一起乘车，都与更有可能报告在家中或车内不应允许在孩子周围吸烟有关。与男性青少年相比，至少有一位家长吸烟的女性青少年更有可能报告在家中或车内不应允许在孩子周围吸烟。随着2004年至2006年期间在家中和车内二手烟暴露率的下降，报告认为在家中或车内不应允许在孩子周围吸烟的青少年比例在同一时期也有所下降。
这些结果表明，尽管绝大多数青少年认为在这些场所不应允许在孩子周围吸烟，但加拿大青少年仍经常在家中和车内接触二手烟。考虑到与二手烟暴露相关的健康和社会后果，现在可能是推进旨在防止个人在这些场所当着青少年的面吸烟的项目和政策的时机。
