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Randomized Controlled Trial
. 2014 Nov;16(11):1463-9.
doi: 10.1093/ntr/ntu099. Epub 2014 Jun 20.

Early quit days among methadone-maintained smokers in a smoking cessation trial

Marcel A de Dios  1 , Bradley J Anderson  2 , Celeste M Caviness  2 , Michael D Stein  3
Affiliations
Randomized Controlled Trial

Early quit days among methadone-maintained smokers in a smoking cessation trial

Marcel A de Dios et al. Nicotine Tob Res. 2014 Nov.

Abstract

Introduction: Methadone maintenance treatment (MMT) patients have an exceedingly high prevalence of tobacco use, and interventions that have been specifically developed for this vulnerable subpopulation have struggled to attain even modest rates of cessation. A significant barrier has been an inability to initiate a quit attempt early in the treatment process and adherence to treatment.

Methods: This study examined the extent to which self-efficacy, medication adherence, and other demographic and smoking variables predicted an early quit day in a sample of MMT smokers (n = 315) enrolled in a smoking cessation pharmacotherapy trial. Using logistic regression, we estimated the association of having an early quit day-24hr without smoking during the first month of treatment.

Results: Only 35.2% of participants reported a successful early quit day. The likelihood of an early quit day increased significantly (odds ratio [OR] = 1.39, 95% CI = 1.04-1.86, p < .05) with education level and if a quit attempt was made in the past year (OR = 2.27, 95% CI = 1.33-3.87, p < .01). Compared to the placebo arm, those randomized to either nicotine replacement therapy (OR = 3.25, 95% CI = 1.30-8.10, p < .01) or varenicline (OR = 3.16, 95% CI = 1.26-7.92) were significantly more likely to have an early quit day. The likelihood of an early quit day was also positively associated with adherence to the medication protocol (OR = 2.05, 95% CI = 1.52-2.76).

Conclusions: Difficulty in achieving an early quit attempt may help explain the very low cessation rates found in studies of MMT smokers.

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