Dataset Information

Differences in norms towards the use of nicotine vaping products among adult smokers, former smokers and nicotine vaping product users: cross-sectional findings from the 2016 ITC Four Country Smoking and Vaping Survey.

ABSTRACT: AIMS:To examine whether norms towards nicotine vaping product (NVP) use varied between Australia, Canada, England and the United States and by socio-demographics, smoking and NVP status. DESIGN:Cross-sectional data from the 2016 ITC Four Country Smoking and Vaping Survey. SETTING:Four countries with distinct regulatory policies relating to the sale and advertising of NVPs: Australia (most restrictive), Canada (restrictive), England and the United States (least restrictive). PARTICIPANTS:A total of 10900 adult (age 18+) current smokers, former smokers, or at least weekly NVP users. Respondents were from Australia (n = 1366), Canada (n = 3309), England (n = 3835) and the United States (n = 2390). MEASUREMENTS:Questions permitted the categorization of respondents as current smokers, former smokers, NVP users and socio-demographic categories (sex, age, country, ethnicity, income and education). Further questions were asked regarding the frequency of exposure to NVPs in public, whether they had a partner or close friends who vaped and whether they believed society or those considered important to them approved of NVPs. FINDINGS:Adjusting for relevant covariates, compared with Australian respondents, those in England, Canada and the United States were more likely to report frequent exposure to NVPs in public (83.1%, 57.3% and 48.3%, respectively, compared to 19.8% in Australia; P < 0.0001), having a partner who vaped (13.8%, 7.1% and 7.7%, respectively, compared to 2.1% in Australia; P < 0.0001) and having close friend(s) who vaped (31.7%, 25.3%, 20.9%, respectively, compared to 10.0% in Australia; P < 0.0001). Compared with Australian respondents, respondents from England were more likely to report that society (27.6% compared to 12.3% in Australia; P < 0.0001) and people important to them approved of NVP use (28.9% compared to 14.3% in Australia; P < 0.0001). CONCLUSIONS:Norms towards nicotine vaping product (NVP) use appear to vary among countries with different regulatory contexts regarding sales and advertising.

SUBMITTER: Aleyan S

PROVIDER: S-EPMC7010266 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature

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Differences in norms towards the use of nicotine vaping products among adult smokers, former smokers and nicotine vaping product users: cross-sectional findings from the 2016 ITC Four Country Smoking and Vaping Survey.

Aleyan Sarah S East Katherine K McNeill Ann A Cummings K Michael KM Fong Geoffrey T GT Yong Hua-Hie HH Thrasher James F JF Borland Ron R Hitchman Sara C SC

Addiction (Abingdon, England) 20190618

<h4>Aims</h4>To examine whether norms towards nicotine vaping product (NVP) use varied between Australia, Canada, England and the United States and by socio-demographics, smoking and NVP status.<h4>Design</h4>Cross-sectional data from the 2016 ITC Four Country Smoking and Vaping Survey.<h4>Setting</h4>Four countries with distinct regulatory policies relating to the sale and advertising of NVPs: Australia (most restrictive), Canada (restrictive), England and the United States (least restrictive). ...[more]

PMID: 31062388

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Project description:BACKGROUND AND AIMS:Debate exists about whether health professionals (HPs) should advise smokers to use nicotine vaping products (NVPs) to quit smoking. The objectives were to examine in four countries: (1) the prevalence of HP discussions and recommendations to use an NVP; (2) who initiated NVP discussions; (3) the type of HP advice received about NVPs; and (4) smoker's characteristics related to receiving advice about NVPs. DESIGN:Cross-sectional study using multivariable logistic regression analyses on weighted data from the 2016 ITC Four Country Smoking and Vaping Survey (ITC 4CV1). SETTING:Four countries with varying regulations governing the sale and marketing of NVPs: 'most restrictive' (Australia), 'restrictive' (Canada) or 'less restrictive' (England and United States). PARTICIPANTS:A total of 6615 adult smokers who reported having visited an HP in the last year (drawn from the total sample of 12 294 4CV1 respondents, of whom 9398 reported smoking cigarettes daily or weekly). Respondents were from the United States (n = 1518), England (n = 2116), Australia (n = 1046), and Canada (n = 1935). MEASUREMENTS:Participants' survey responses indicated if they were current daily or weekly smokers and had visited an HP in the past year. Among those participants, further questions asked participants to report (1) whether NVPs were discussed, (2) who raised the topic, (3) advice received on use of NVPs and (4) advice received on quitting smoking. FINDINGS:Among the 6615 smokers who visited an HP in the last year, 6.8% reported discussing NVPs with an HP and 2.1% of smokers were encouraged to use an NVP (36.1% of those who had a discussion). Compared with Australia (4.3%), discussing NVPs with an HP was more likely in the United States [8.8%, odds ratio (OR) = 2.15, 95% confidence interval (CI) = 1.41-3.29] and Canada (7.8%, OR = 1.87, 95% CI = 1.26-2.78). Smokers in Australia were less likely to discuss NVPs than smokers in England (6.2%), although this was not statistically significant (OR = 1.47, 95% CI = 0.98-2.20). Overall, the prevalence of HPs recommending NVPs was three times more likely in the United States than in Australia (OR = 3.07, 95% CI = 1.45-6.47), and twice as likely in Canada (OR = 2.28, 95% CI = 1.06-4.87) than in Australia. Australia and England did not differ (OR = 1.76, 95% CI = 0.83-3.74). Just over half (54%) of respondents brought up NVPs themselves; there were no significant differences among countries. CONCLUSIONS:Discussions in Australia, Canada, England, and the United States between smokers and health professionals about nicotine vaping products appear to be infrequent, regardless of the regulatory environment. A low percentage of health professionals recommended vaping products. This was particularly evident in Australia, which has the most restrictive regulatory environment of the four countries studied.

Project description:AIMS:To examine current and ex-smokers' reasons for continuing or discontinuing regular use of nicotine vaping products (NVPs). DESIGN AND PARTICIPANTS:Cross-sectional study of 2722 current daily/weekly, and 921 ex-daily/weekly, adult vapers who were either current or ex-cigarette smokers when surveyed. SETTING:2016 ITC Four Country Smoking and Vaping wave 1 (4CV1) surveys conducted in the United States (n = 1159), England (n = 1269), Canada (n = 964) and Australia (n = 251). MEASUREMENTS:Current vapers were asked about the following reasons for regular NVP use: less harmful to others, social acceptance, enjoyment, use in smoke-free areas, affordability and managing smoking behaviour. Ex-vapers were asked about the following reasons for discontinuing regular NVP use: addiction concerns, affordability, negative experiences, perceived social unacceptability, safety concerns, product dissatisfaction, inconvenience, unhelpfulness for quitting, unhelpfulness for managing cravings and not needed for smoking relapse prevention. Possible correlates of NVP use and discontinuation, including smoking status, smoking/vaping frequency, quit duration (ex-smokers only), country, age and type of NVP device used, were examined using multivariate logistic regression models. FINDINGS:For current smokers, the top three reasons for current regular NVP use were: helpful for cutting down smoking (85.6%), less harmful to others (77.9%) and helpful for quitting smoking (77.4%). The top three reasons for discontinuing vaping were: not being satisfying (77.9%), unhelpfulness for cravings (63.2%), and unhelpfulness for quitting smoking (52.4%). For ex-smokers, the top three reasons for current vaping were: enjoyment (90.6%), less harmful to others (90%) and affordability (89.5%); and for discontinuing were: not needed to stay quit (77.3%), not being satisfying (49.5%) and safety concerns (44%). Reported reasons varied by user characteristics, including age, country and NVP device type. CONCLUSIONS:Regular use of nicotine vaping products is mainly motivated by its perceived benefits, especially for reducing or quitting smoking, whereas its discontinuation is motivated by perceived lack of such benefits, with some variation by user characteristics.

Project description:IntroductionTo test whether urges to smoke and perceived addiction to smoking have independent predictive value for quit attempts and short-term quit success over and above the Heaviness of Smoking Index (HSI).Aims and methodsData were from the International Tobacco Control Four Country Smoking and Vaping Wave 1 (2016) and Wave 2 (2018) surveys. About 3661 daily smokers (daily vapers excluded) provided data in both waves. A series of multivariable logistic regression models assessed the association of each dependence measure on odds of making a quit attempt and at least 1-month smoking abstinence.ResultsOf the 3661 participants, 1594 (43.5%) reported a quit attempt. Of those who reported a quit attempt, 546 (34.9%) reported short-term quit success. Fully adjusted models showed that making quit attempts was associated with lower HSI (adjusted odds ratio [aOR] = 0.81, 95% confidence interval [CI] = 0.73 to 0.90, p < .001), stronger urges to smoke (aOR = 1.08, 95% CI = 1.04 to 1.20, p = .002), and higher perceived addiction to smoking (aOR = 0.52, 95% CI = 0.32 to 0.84, p = .008). Lower HSI (aOR = 0.57, 95% CI = 0.40 to 0.87, p < .001), weaker urges to smoke (aOR = 0.85, 95% CI = 0.76 to 0.95, p = .006), and lower perceived addiction to smoking (aOR = 0.55, 95% CI = 0.32 to 0.91, p = .021) were associated with greater odds of short-term quit success. In both cases, overall R2 was around 0.5.ConclusionsThe two additional dependence measures were complementary to HSI adding explanatory power to smoking cessation models, but variance explained remains small.ImplicationsStrength of urges to smoke and perceived addiction to smoking may significantly improve prediction of cessation attempts and short-term quit success over and above routinely assessed demographic variables and the HSI. Stratification of analyses by age group is recommended because the relationship between dependence measures and outcomes differs significantly for younger (aged 18-39) compared to older (aged older than 40) participants. Even with the addition of these extra measures of dependence, the overall variance explained in predicting smoking cessation outcomes remains very low. These measures can only be thought of as assessing some aspects of dependence. Current understanding of the factors that ultimately determine quit success remains limited.

Project description:BackgroundAlthough evidence shows that co-use of cigarettes and cannabis is common, there is little research examining if co-use patterns vary depending on the regulatory environment for cannabis. This study examined patterns of co-use and perceptions of relative harm among cigarette smokers in four countries with different histories, and at different stages of cannabis legalization.MethodsData are from the 2018 International Tobacco Control 4CV Survey and included 10035 adult cigarette smokers from Canada, United States (US), Australia, and England. At the time of the survey, Canada and the US had relatively more permissive cannabis regulations compared to Australia and England.ResultsAmong this sample of 10035 cigarette smokers, Canada had the highest rate of cannabis co-use in the last 12 months (36.3%), followed by the US (29.1%), England (21.6%), and Australia (21.4%). Among past 12 month co-users (n = 3134), the US (40.2%) and Canada (35.2%) had the highest rates of daily cannabis use, followed by smokers in England (26.3%) and Australia (21.7%); Australian co-users had the highest rate of infrequent (<monthly) cannabis use. The highest proportion of co-users who smoked daily and used cannabis daily was in the US (34.8%), followed by Canada (30.6%), England (25.8%), and Australia (22.7%). More co-users in the US (78.3%) and Canada (73.6%) perceived smoked cannabis to be less harmful than cigarettes than in Australia (65.5%) and England (60.8%). The majority of co-users who used cannabis in the last 30 days had smoked it (92.3%), with those in England more likely to smoke cannabis (95.7%) compared to Canada (88.6%); there were no other differences between countries (US: 92.0%, Australia: 93.0%). Co-users in England (90.4%) and Australia (86.0%) were more likely to mix tobacco with cannabis than co-users in Canada (38.5%) and the US (22.3%).ConclusionPatterns of tobacco and cannabis co-use differed between countries. Smokers in Canada and the US had higher rates of co-use, daily cannabis use, dual-daily use of both cannabis and cigarettes, and were more likely to perceive smoked cannabis as less harmful than cigarettes compared to England and Australia. Further attention as to how varying cannabis regulations may impact co-use patterns is warranted.

Dataset Information

Differences in norms towards the use of nicotine vaping products among adult smokers, former smokers and nicotine vaping product users: cross-sectional findings from the 2016 ITC Four Country Smoking and Vaping Survey.

Publications

Differences in norms towards the use of nicotine vaping products among adult smokers, former smokers and nicotine vaping product users: cross-sectional findings from the 2016 ITC Four Country Smoking and Vaping Survey.

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