Are People More Likely to Vape or Smoke Indoors? A Population Survey of Adults in England.

Increasingly, people smoke cigarettes outdoors and avoid exposing bystanders to harm. People may not have the same motivation to vape outdoors since e-cigarettes, unlike cigarettes, do not create side stream emissions and exhaled aerosol contains fewer toxicants than secondhand smoke. This study aims to estimate the prevalence and correlates of vaping and smoking indoors among adults in England. Data came from the Health Survey for England 2019, a cross-sectional household survey. Adults who vape or smoke (N = 1530) were asked whether they had vaped or smoked indoors inside the home, car, or other places within the past 7 days. Logistic regression was used to estimate prevalence and key correlates of indoor use, including age, sex, presence of adults/children in home, housing tenure, and nicotine dependence. People who exclusively vaped were much more likely to use their product indoors than those who exclusively smoked (87.0% vs. 52.0%; odds ratio [OR] = 6.16, 95% confidence interval [CI] = 4.09 to 9.28). Similarly, people who dual used had higher odds of vaping than smoking indoors (62.1% vs. 44.3%; OR = 3.76, 95% CI = 2.06 to 6.84). The preference for vaping over smoking indoors was found across different locations, including at home and in cars. Those who were older, highly dependent on nicotine, and lived alone were most prone to use any product indoors. While housing tenure was not strongly associated with vaping indoors, those living in social housing were much more likely to smoke indoors than homeowners. Adults in England are much more likely to vape than smoke indoors. Age, nicotine dependence, and living alone are strongly associated with both behaviors. Our results show that people have a strong preference for vaping over smoking indoors, including in the home. Given the high prevalence of vaping indoors, policy makers, landlords, and businesses must weigh up the ethics, benefits, and harms of extending smoke-free laws to include e-cigarettes.

Tattan-Birch H ，Jackson SE ，Shahab L ，Brown J ... -  《-》

Statewide Prevalence of Smoke-Free and Vape-Free Homes, by Tobacco Product Use, Minnesota, 2018.

Helgertz S ，St Claire A ，Kingsbury J 《Preventing Chronic Disease》

Parental Smoking and E-cigarette Use in Homes and Cars.

To determine how smoke-free and vape-free home and car policies differ for parents who are dual users of cigarettes and electronic cigarettes (e-cigarettes), who only smoke cigarettes, or who only use e-cigarettes. To identify factors associated with not having smoke-free or vape-free policies and how often smoke-free advice is offered at pediatric offices. Secondary analysis of 2017 parental interview data collected after their children's visit in 5 control practices participating in the Clinical Effort Against Secondhand Smoke Exposure trial. Most dual users had smoke-free home policies, yet fewer had a vape-free home policies (63.8% vs 26.3%; P < .01). Dual users were less likely than cigarette users to have smoke-free car (P < .01), vape-free home (P < .001), or vape-free car (P < .001) policies. Inside cars, dual users were more likely than cigarette users to report smoking (P < .001), e-cigarette use (P < .001), and e-cigarette use with children present (P < .001). Parental characteristics associated with not having smoke-free or vape-free home and car policies include smoking ≥10 cigarettes per day, using e-cigarettes, and having a youngest child >10 years old. Smoke-free home and car advice was infrequently delivered. Parents may perceive e-cigarette aerosol as safe for children. Dual users more often had smoke-free policies than vape-free policies for the home. Dual users were less likely than cigarette-only smokers to report various child-protective measures inside homes and cars. These findings reveal important opportunities for intervention with parents about smoking and vaping in homes and cars.

Drehmer JE ，Nabi-Burza E ，Hipple Walters B ，Ossip DJ ，Levy DE ，Rigotti NA ，Klein JD ，Winickoff JP ... -  《-》

Comparison of Indicators of Dependence for Vaping and Smoking: Trends Between 2017 and 2022 Among Youth in Canada, England, and the United States.

The current study sought to examine trends in indicators of dependence for youth vaping and smoking during a period of rapid evolution in the e-cigarette market. Data are from repeat cross-sectional online surveys conducted between 2017 and 2022 among youth aged 16-19 in Canada, England, and the United States (US). Participants were 23 145 respondents who vaped and/or smoked in the past 30 days. Four dependence indicators were assessed for smoking and vaping (perceived addiction, frequent strong urges, time to first use after waking, days used in past month) and two for vaping only (use events per day, e-cigarette dependence scale). Regression models examined differences by survey wave and country, adjusting for sex, age, race, and exclusive/dual use. All six indicators of dependence increased between 2017 and 2022 among youth who vaped in the past 30 days (p < .001 for all). For example, more youth reported strong urges to vape at least most days in 2022 than in 2017 (Canada: 26.5% to 53.4%; England: 25.5% to 45.4%; US: 31.6% to 50.3%). In 2017, indicators of vaping dependence were substantially lower than for smoking; however, by 2022, youth vaping was associated with a greater number of days used in the past month (Canada, US), shorter time to first use (all countries), and a higher likelihood of frequent strong urges (Canada, US) compared to youth smoking. From 2017 to 2022, indicators of vaping dependence increased substantially. By 2022, vaping dependence indices were comparable to those of smoking. Indicators of vaping dependence among youth have increased substantially since 2017 to levels that are comparable to cigarette dependence among youth who smoke. Future research should examine factors underlying the increase in dependence among youth who vape, including changes to the nicotine profile and design of e-cigarette products.

Gomes MN ，Reid JL ，Rynard VL ，East KA ，Goniewicz ML ，Piper ME ，Hammond D ... -  《-》

Associations of close social connections with smoking and vaping: a population study in England.

Jackson SE ，Squires H ，Shahab L ，Tattan-Birch H ，Buckley C ，Purshouse RC ，Brown J ... -  《-》