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Preventing smoking initiation or relapse following 8.5 weeks of involuntary smoking abstinence in basic military training: trial design, interventions, and baseline data.

ABSTRACT: Smoking cessation is a primary method of reducing excess mortality and morbidity. Unfortunately, the vast majority of cessation attempts end in eventual relapse. Relapse-prevention interventions have shown some success at improving the long-term maintenance of tobacco abstinence among individuals motivated to abstain. However, involuntary tobacco abstinence (e.g., military training, hospitalization, incarceration) presents another opportunity for intervention to prevent relapse. During basic military training (BMT), tobacco use is strictly forbidden in all service branches, but tobacco relapse (and initiation) following BMT is extremely high. This paper reports on the design, intervention development, and baseline characteristics of a randomized controlled trial testing minimal interventions designed to prevent tobacco relapse among United States Air Force (USAF) personnel following BMT. Participants are randomized by squadron to receive either a standard smoking-cessation booklet, a new motivation-based booklet designed specifically for USAF personal, or the latter booklet combined with a brief, face-to-face motivational session. Primary outcomes will be self-reported tobacco use at 12 and 24month follow-up. Given that the Department of Defense is the world's largest employer, the potential of leveraging involuntary tobacco abstinence during BMT into extended abstinence has substantial public health significance.

SUBMITTER: Brandon TH

PROVIDER: S-EPMC4024360 | biostudies-literature | 2014 May

REPOSITORIES: biostudies-literature

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Preventing smoking initiation or relapse following 8.5 weeks of involuntary smoking abstinence in basic military training: trial design, interventions, and baseline data.

Brandon Thomas H TH Klesges Robert C RC Ebbert Jon O JO Talcott Gerald W GW Thomas Fridtjof F Leroy Karen K Richey Phyllis A PA Colvin Lauren L

Contemporary clinical trials 20140315 1

Smoking cessation is a primary method of reducing excess mortality and morbidity. Unfortunately, the vast majority of cessation attempts end in eventual relapse. Relapse-prevention interventions have shown some success at improving the long-term maintenance of tobacco abstinence among individuals motivated to abstain. However, involuntary tobacco abstinence (e.g., military training, hospitalization, incarceration) presents another opportunity for intervention to prevent relapse. During basic mil ...[more]

PMID: 24637237

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Project description:ImportanceMost women who quit smoking during pregnancy will relapse postpartum. Previous efforts to prevent postpartum relapse have been unsuccessful at increasing rates of sustained abstinence.ObjectiveTo evaluate the relative efficacy of 2 different approaches to prevent postpartum smoking relapse.Design, setting, and participantsPregnant women who recently had quit smoking were recruited before the end of pregnancy. Intervention sessions were conducted through a combination of telephone calls and in-person visits beginning at delivery and continuing through 24 weeks postpartum. Participants completed assessments at the prenatal baseline and at 12, 24, and 52 weeks postpartum. Participants were recruited between March 2008 and December 2012. The dates of the analysis were April 2014 to February 2015.InterventionsWomen received postpartum-adapted, behavioral smoking relapse prevention intervention and were randomly assigned to an enhanced cognitive behavioral intervention that included additional specialized strategies and content focused on women's postpartum concerns about mood, stress, and weight (Strategies to Avoid Returning to Smoking [STARTS]) or a supportive, time and attention-controlled comparison (SUPPORT). Intervention began before delivery and continued through 24 weeks postpartum.Main outcomes and measuresThe primary outcome was biochemically confirmed sustained tobacco abstinence at 52 weeks postpartum. Secondary outcomes were self-reported mood, levels of perceived stress, and degree of concern about smoking-related weight gain.ResultsThe study cohort comprised 300 participants (150 randomly assigned to each group). Their mean (SD) age was 24.99 (5.65) years. Overall, 38.0% (114 of 300), 33.7% (101 of 300), and 24.0% (72 of 300) of the sample maintained abstinence at 12, 24, and 52 weeks' postpartum, respectively. There were no differences between the intervention groups in abstinence or time to relapse. Self-reported depressive symptoms and perceived stress significantly improved over time, and improvements were similar for both intervention groups. Women with more depressive symptoms and higher levels of perceived stress were more likely to relapse (hazard ratio, 1.02; 95% CI, 1.00-1.04; P = .04 for depressive symptoms and hazard ratio, 1.04; 95% CI, 1.01-1.07; P = .003 for stress).Conclusions and relevanceAn intervention designed to address women's concerns about mood, stress, and weight did not differentially improve rates of sustained tobacco abstinence postpartum compared with a time and attention-controlled comparison. Women in STARTS and SUPPORT reported postpartum improvements in mood and stress, and the experience of fewer depressive symptoms and less perceived stress was related to sustained abstinence. Given that most pregnant quitters will relapse within 1 year postpartum and that postpartum smoking has negative health consequences for women and children, effective interventions that target postpartum mood and stress are needed.Trial registrationclinicaltrials.gov Identifier: NCT00757068.

Project description:ImportanceTobacco use disorder is associated with dysregulated neurocognitive function in the right inferior frontal gyrus (IFG)-one node in a corticothalamic inhibitory control (IC) network.ObjectiveTo examine associations between IC neural circuitry structure and function and lapse/relapse vulnerability in 2 independent studies of adult smokers.Design, setting, and participantsIn study 1, treatment-seeking smokers (n = 81) completed an IC task during functional magnetic resonance imaging (fMRI) before making a quit attempt and then were followed up for 10 weeks after their quit date. In study 2, a separate group of smokers (n = 26) performed the same IC task during fMRI, followed by completing a laboratory-based smoking relapse analog task. Study 1 was performed at Duke University Medical Center between 2008 and 2012; study 2 was conducted at the Medical University of South Carolina between 2013 and 2016.Main outcomes and measuresAssociations between corticothalamic-mediated IC, gray-matter volume, and smoking lapse/relapse.ResultsOf the 81 study participants in study 1 (cessation study), 45 were women (56%), with mean (SD) age, 38.4 (10.2) years. In study 1, smoking relapse was associated with less gray-matter volume (F1,74 = 28.32; familywise error P threshold = 0.03), greater IC task-related blood oxygenation level-dependent (BOLD) response in the right IFG (F1,78 = 14.87) and thalamus (F1,78 = 14.97) (P < .05), and weaker corticothalamic task-based functional connectivity (tbFC) (F1,77 = 5.87; P = .02). Of the 26 participants in study 2 (laboratory study), 15 were women (58%), with mean (SD) age, 34.9 (10.3). Similar to study 1, in study 2, greater IC-BOLD response in the right IFG (t23 = -2.49; β = -0.47; P = .02), and weaker corticothalamic tbFC (t22 = 5.62; β = 0.79; P < .001) were associated with smoking sooner during the smoking relapse-analog task. In both studies, corticothalamic tbFC mediated the association between IC performance and smoking outcomes.Conclusions and relevanceIn these 2 studies, baseline differences in corticothalamic circuitry function were associated with mediated IC and smoking relapse vulnerability. These findings warrant further examination of interventions for augmenting corticothalamic neurotransmission and enhancing IC during the course of tobacco use disorder treatment.

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Project description:ObjectivesSmokers with posttraumatic stress disorder (PTSD) have increased difficulty achieving and maintaining abstinence. Contingency management approaches to smoking cessation interventions have demonstrated short-term efficacy but are limited by high rates of relapse. The goal of this pilot study was to evaluate the usability and feasibility of a smartphone-based smoking cessation application (Stay Quit Coach) designed to prevent relapse among individuals with PTSD.MethodsSmokers (N = 11) were randomized to (1) QUIT4EVER, an intervention combining mobile contingency management smoking cessation counseling and medications, and Stay Quit Coach or (2) a contact control condition that was identical to QUIT4EVER except Stay Quit Coach was not included. The primary outcome was prolonged smoking abstinence.ResultsAmong those queried during the follow-up periods, average Stay Quit Coach helpfulness ratings were high and ranged from 7.25 to 10 on a 10-point Likert scale (with higher scores corresponding to greater helpfulness). The Stay Quit Coach was rated by participants as being most effective at helping to quit smoking, helping to remain quit, and providing support and relevant information about quitting. Among the three quitters in the QUIT4EVER group, all reported abstinence at 3 and 6 months; however, abstinence was only bioverified for one quitter at 6 months. Among the four quitters in the contact control condition group, three reported abstinence at 3 and 6 months, but abstinence was not confirmed by bioverification.ConclusionsSmokers with PTSD express interest in and helpfulness of Stay Quit Coach for remaining abstinent after a quit attempt. Combined use of mobile contingency management and Stay Quit Coach is a feasible and acceptable adjunctive smoking cessation treatment for reducing smoking among smokers with PTSD. Adequately powered clinical trials are needed to demonstrate the long-term efficacy of this combined approach to smoking cessation. This study [Use of Technological Advances to Prevent Smoking Relapse among Smokers with PTSD (QUIT4EVER)] was registered on www.clinicaltrials.gov . clinicaltrials.gov identifier: NCT01990079.

Dataset Information

Preventing smoking initiation or relapse following 8.5 weeks of involuntary smoking abstinence in basic military training: trial design, interventions, and baseline data.

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Preventing smoking initiation or relapse following 8.5 weeks of involuntary smoking abstinence in basic military training: trial design, interventions, and baseline data.

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