Montreuil Annie, Tremblay Michèle, Cantinotti Michael, Leclerc Bernard-Simon, Lasnier Benoit, Cohen Joanna, McGrath Jennifer, O'Loughlin Jennifer
Institut national de santé publique du Québec; Département de psychologie, Université du Québec à Montréal.
Can J Public Health. 2015 Jun 24;106(6):e369-74. doi: 10.17269/cjph.106.5070.
Second-hand smoke (SHS) can attain high concentrations in cars. To protect children's health, nine Canadian provinces have enacted legislation prohibiting smoking in privately owned vehicles when children are present; Quebec is the only province with no such legislation. The objective of this study was to estimate the proportion of smokers in Quebec who smoke while travelling in a private vehicle in which children are present, and to compare the characteristics of smokers who do and do not smoke in cars.
In 2011-12, 754 daily smokers who recently travelled in a car with children completed a telephone survey in which they reported how frequently they smoked in a car, if there were smoking restrictions, and perceptions about the effectiveness of legislation prohibiting smoking in cars when children are present.
Twenty-three percent of daily smokers smoked at least occasionally in their car when children were present. This proportion was higher among smokers who knew that there was no legislation in Quebec prohibiting smoking in cars, compared to smokers who believed that such legislation was already in effect (32% vs. 12%). Smokers with a university degree and those who reported that smoking was prohibited at home were less likely to expose children to SHS in cars. Most daily smokers (75%) believed that legislation would be effective.
The results of this study suggest that legislation prohibiting smoking in cars is necessary to protect children from SHS, that such legislation would be effective, and that it may be relatively easy to implement.
二手烟（SHS）在汽车内可达到高浓度。为保护儿童健康，加拿大九个省份已颁布立法，禁止在有儿童在场的私人车辆内吸烟；魁北克是唯一没有此类立法的省份。本研究的目的是估计魁北克省在有儿童在场的私人车辆内旅行时吸烟的吸烟者比例，并比较在车内吸烟和不吸烟的吸烟者的特征。
在2011 - 12年，754名近期与儿童一起乘车的每日吸烟者完成了一项电话调查，他们报告了自己在车内吸烟的频率、是否有吸烟限制以及对禁止在有儿童在场时在车内吸烟的立法有效性的看法。
23%的每日吸烟者在有儿童在场时至少偶尔在车内吸烟。与认为此类立法已经生效的吸烟者相比，知道魁北克没有禁止在车内吸烟立法的吸烟者中这一比例更高（32%对12%）。拥有大学学位的吸烟者以及那些报告在家中禁止吸烟的吸烟者在车内让儿童接触二手烟的可能性较小。大多数每日吸烟者（75%）认为立法会有效。
本研究结果表明，禁止在车内吸烟的立法对于保护儿童免受二手烟危害是必要的，该立法会有效，并且可能相对容易实施。
