Aims: Second hand smoke (SHS) exposure is increasingly recognized as a major public health concern. Assessing adolescents’ motivational level to avoid SHS is vital to promote and reinforce reductions in SHS exposure....Aims: Second hand smoke (SHS) exposure is increasingly recognized as a major public health concern. Assessing adolescents’ motivational level to avoid SHS is vital to promote and reinforce reductions in SHS exposure. Methods: A brief measure based on the Stage of Change model was developed to characterize adolescents’ behavior related to reducing SHS exposure and used to identify potential determinants of SHS stage of change. The sample consisted of 1172 adolescents aged 13 to 15 years who participated in an internet-based cohort study of youth in British Columbia, Canada. Results: Sixty-six percent of the adolescents reported they had consistently made efforts to reduce exposure to SHS for more than 6 months, while 19% did not intend to reduce their exposure to SHS in the next 6 months. Adolescents’ SHS stage of change significantly differed by ethnicity, whether they had tried cigarettes, amount of tobacco smoked in their lifetime, parental and peer smoking statuses, past months’ exposure to SHS, frequent smoking in the home, and home smoking restrictions (all p < 0.05). Active smoking and more frequent exposure to SHS were associated with an increased probability of being in the pre-contemplation stage of change with regard to behavior related to reducing SHS exposure. Conclusion: This brief measure based on the Stage of Change model can be used in future studies to characterize adolescents’ behavior around SHS. Adolescents who smoke or have parents and/or friends who smoke appear to be a population that could benefit from stage-matched interventions designed to raise awareness of the risks associated with SHS for smokers and non-smokers, and ultimately reduce SHS exposure.展开更多
目的:监测北京市部分公共场所及工作场所直径<2.5μm的颗粒物(PM2.5)浓度,了解室内吸烟对空气中PM2.5浓度的影响。方法:使用TSI Side Pak AM510个人型气溶胶监测仪,对北京市6类公共场所和工作场所空气中PM2.5浓度进行监测,并进行室...目的:监测北京市部分公共场所及工作场所直径<2.5μm的颗粒物(PM2.5)浓度,了解室内吸烟对空气中PM2.5浓度的影响。方法:使用TSI Side Pak AM510个人型气溶胶监测仪,对北京市6类公共场所和工作场所空气中PM2.5浓度进行监测,并进行室内吸烟对空气PM2.5浓度影响的实验研究。结果:无烟、部分禁烟和不禁烟餐馆空气PM2.5浓度分别为62.2μg/m3、130.8μg/m3和198.7μg/m3。无烟和不禁烟办公室空气PM2.5浓度分别为37.3μg/m3和252.1μg/m3。不禁烟酒吧空气中PM2.5浓度为329.4μg/m3。在室内吸1支烟可导致空气中PM2.5的浓度高达300μg/m3,连续吸3支烟以上可导致空气中PM2.5浓度超过1700μg/m3。结论:公共场所及工作场所全面、严格的禁烟政策对于防止二手烟危害非常必要。展开更多
文摘Aims: Second hand smoke (SHS) exposure is increasingly recognized as a major public health concern. Assessing adolescents’ motivational level to avoid SHS is vital to promote and reinforce reductions in SHS exposure. Methods: A brief measure based on the Stage of Change model was developed to characterize adolescents’ behavior related to reducing SHS exposure and used to identify potential determinants of SHS stage of change. The sample consisted of 1172 adolescents aged 13 to 15 years who participated in an internet-based cohort study of youth in British Columbia, Canada. Results: Sixty-six percent of the adolescents reported they had consistently made efforts to reduce exposure to SHS for more than 6 months, while 19% did not intend to reduce their exposure to SHS in the next 6 months. Adolescents’ SHS stage of change significantly differed by ethnicity, whether they had tried cigarettes, amount of tobacco smoked in their lifetime, parental and peer smoking statuses, past months’ exposure to SHS, frequent smoking in the home, and home smoking restrictions (all p < 0.05). Active smoking and more frequent exposure to SHS were associated with an increased probability of being in the pre-contemplation stage of change with regard to behavior related to reducing SHS exposure. Conclusion: This brief measure based on the Stage of Change model can be used in future studies to characterize adolescents’ behavior around SHS. Adolescents who smoke or have parents and/or friends who smoke appear to be a population that could benefit from stage-matched interventions designed to raise awareness of the risks associated with SHS for smokers and non-smokers, and ultimately reduce SHS exposure.
文摘目的:监测北京市部分公共场所及工作场所直径<2.5μm的颗粒物(PM2.5)浓度,了解室内吸烟对空气中PM2.5浓度的影响。方法:使用TSI Side Pak AM510个人型气溶胶监测仪,对北京市6类公共场所和工作场所空气中PM2.5浓度进行监测,并进行室内吸烟对空气PM2.5浓度影响的实验研究。结果:无烟、部分禁烟和不禁烟餐馆空气PM2.5浓度分别为62.2μg/m3、130.8μg/m3和198.7μg/m3。无烟和不禁烟办公室空气PM2.5浓度分别为37.3μg/m3和252.1μg/m3。不禁烟酒吧空气中PM2.5浓度为329.4μg/m3。在室内吸1支烟可导致空气中PM2.5的浓度高达300μg/m3,连续吸3支烟以上可导致空气中PM2.5浓度超过1700μg/m3。结论:公共场所及工作场所全面、严格的禁烟政策对于防止二手烟危害非常必要。
