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dc.contributor.authorPellow, Meghan
dc.description.abstractBackground. The impact of cannabis co-use on tobacco cessation is uncertain. This study examined whether nonuse, less-than-daily, or daily co-use of cannabis is associated with tobacco cessation outcomes among treatment-seeking 18-to-29-year-old smokers. Methods. Between 2013 and 2015, young adult Ontarians with no contraindications could use an online platform to order free, mailout, 8-week course of nicotine replacement therapy (NRT) with supplementary self-help materials. Of 23,312 visitors, 10,823 met residency and age eligibility criteria, 8,491 ordered their preferred product (patch or gum), and 1,573 completed baseline and 6-month follow-up self-report surveys. Past 30-day cannabis use was measured at baseline. Tobacco abstinence at follow-up was defined as continuous since estimated end of treatment; reduction was defined as smoking less than 50% of the baseline consumption. Attrition was associated with being unemployed, less educated, more nicotine dependent, and more likely to have a past year quit attempt. Results. Continuous tobacco abstinence was achieved by 10.3% of less-than-daily cannabis users, but 16.2% of daily and 15.7% of non-cannabis users (ns). A binary logistic regression controlling for demographic characteristics, treatment use, nicotine dependence, cigarettes per day, past year quit attempt and alcohol use revealed less-than-daily cannabis use (AOR = .64, p < .05), but not daily cannabis use (AOR = 1.08, p > .05) reduced the odds of quitting compared to nonuse. No other variables influenced odds of abstinence. Of the 1,342 participants who did not achieve abstinence from tobacco, 20.2% of daily cannabis users, 23% of less-than-daily cannabis users, and 22.7% of nonusers reduced their tobacco consumption (ns). A binary logistic regression revealed greater odds of reduction for smokers who smoked less and had a past year quit attempt. Conclusion. The pattern of results suggests less-than-daily, but not daily cannabis use may inhibit successful abstinence among treatment-seeking young adults accessing free NRT mailout programs. Programs operating with limited budgets and supplies of NRT may consider directing less-than-daily co-users to other interventions. Research could explore whether changes in frequency of cannabis use occur during treatment and impact outcomes, and whether reasons for or methods of cannabis use influence tobacco cessation outcomes.en_US
dc.publisherBrock Universityen_US
dc.rightsCC0 1.0 Universal*
dc.subjectyoung adulten_US
dc.subjectnicotine replacement therapyen_US
dc.titleDoes Cannabis Co-use Impact Tobacco Cessation of Treatment-Seeking Young Adults? A Secondary Analysisen_US
dc.typeElectronic Thesis or Dissertationen_US Applied Health Sciencesen_US
dc.contributor.departmentApplied Health Sciences Programen_US of Applied Health Sciencesen_US

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CC0 1.0 Universal
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