Paul A. Dennis
Duke University
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Featured researches published by Paul A. Dennis.
Nicotine & Tobacco Research | 2013
Jeffrey S. Hertzberg; Vickie L. Carpenter; Angela C. Kirby; Patrick S. Calhoun; Scott D. Moore; Michelle F. Dennis; Paul A. Dennis; Eric A. Dedert; Jean C. Beckham
INTRODUCTION Smokers with posttraumatic stress disorder (PTSD) smoke at higher prevalence rates and are more likely to relapse early in a quit attempt. Innovative methods are needed to enhance quit rates, particularly in the early quit period. Web-based contingency-management (CM) approaches have been found helpful in reducing smoking among other difficult-to-treat smoker populations but are limited by the need for computers. This pilot study builds on the web-based CM approach by evaluating a smartphone-based application for CM named mobile CM (mCM). METHODS Following a 2-week training period, 22 smokers with PTSD were randomized to a 4-week mCM condition or a yoked (i.e., noncontingent 4-week mCM condition). All smokers received 2 smoking cessation counseling sessions, nicotine replacement, and bupropion. Participants could earn up to
Assessment | 2014
Kimberly T. Green; Laura Hayward; Ann M. Williams; Paul A. Dennis; Brandon C. Bryan; Katherine H. Taber; Jonathan R. T. Davidson; Jean C. Beckham; Patrick S. Calhoun
690 (
Psychosomatic Medicine | 2014
Paul A. Dennis; Lana L. Watkins; Patrick S. Calhoun; Ania Oddone; Andrew Sherwood; Michelle F. Dennis; Michelle B. Rissling; Jean C. Beckham
530 for mCM,
The Journal of Clinical Psychiatry | 2015
Vickie L. Carpenter; Jeffrey S. Hertzberg; Angela C. Kirby; Patrick S. Calhoun; Scott D. Moore; Michelle F. Dennis; Paul A. Dennis; Eric A. Dedert; Lauren P. Hair; Jean C. Beckham
25.00 for assessments and office visits [up to 5], and
Journal of Psychosomatic Research | 2014
Paul A. Dennis; Christi S. Ulmer; Patrick S. Calhoun; Andrew Sherwood; Lana L. Watkins; Michelle F. Dennis; Jean C. Beckham
35.00 for equipment return). The average earned was
Psychology and Aging | 2013
Thomas M. Hess; Lauren E. Popham; Paul A. Dennis; Lisa Emery
314.00. RESULTS Compliance was high during the 2-week training period (i.e., transmission of videos) (93%) and the 4-week treatment period (92%). Compliance rates did not differ by group assignment. Four-week quit rates (verified with CO) were 82% for the mCM and 45% for the yoked controls. Three-month self-report quit rates were 50% in the mCM and 18% in the yoked controls. CONCLUSIONS mCM may be a useful adjunctive smoking cessation treatment component for reducing smoking among smokers with PTSD, particularly early in a smoking quit attempt.
Nicotine & Tobacco Research | 2014
Eric A. Dedert; Paul A. Dennis; Cindy Swinkels; Patrick S. Calhoun; Michelle F. Dennis; Jean C. Beckham
The present study examined the structural validity of the 25-item Connor–Davidson Resilience Scale (CD-RISC) in a large sample of U.S. veterans with military service since September 11, 2001. Participants (N = 1,981) completed the 25-item CD-RISC, a structured clinical interview and a self-report questionnaire assessing psychiatric symptoms. The study sample was randomly divided into two subsamples: an initial sample (Sample 1: n = 990) and a replication sample (Sample 2: n = 991). Findings derived from exploratory factor analysis (EFA) did not support the five-factor analytic structure as initially suggested in Connor and Davidson’s instrument validation study. Although parallel analyses indicated a two-factor structural model, we tested one to six factor solutions for best model fit using confirmatory factor analysis. Results supported a two-factor model of resilience, composed of adaptability- (8 items) and self-efficacy-themed (6 items) items; however, only the adaptability-themed factor was found to be consistent with our view of resilience—a factor of protection against the development of psychopathology following trauma exposure. The adaptability-themed factor may be a useful measure of resilience for post-9/11 U.S. military veterans.
Addictive Behaviors | 2014
Sarah M. Wilson; Eric A. Dedert; Paul A. Dennis; Michelle F. Dennis; Patrick S. Calhoun; Angela C. Kirby; Jean C. Beckham
Objective Posttraumatic stress disorder (PTSD) has been linked to reduced heart rate variability (HRV), which is in turn a risk factor for cardiovascular disease and death. Although hyperarousal and anxiety are thought to underlie this association, behavioral health risks, including smoking, alcohol dependence, obesity, and sleep disturbance, represent potential mechanisms linking PTSD and HRV. Methods To test this hypothesis, short-term laboratory-based and 24-hour ambulatory measures of HRV were collected from 227 young adults (18–39 years), 107 of whom were diagnosed as having PTSD. Latent variable modeling was used to assess the relationship of PTSD symptoms with HRV along with potential behavioral health mediators. Results PTSD symptoms were associated with reduced HRV (&bgr; = −0.21, p = .002). However, this association was reduced in models that adjusted for cigarette consumption and history of alcohol dependence and was rendered nonsignificant in a model adjusting for sleep disturbance. Independent mediation effects were deemed significant via bootstrapping analysis. Together, the three behavioral health factors (cigarette consumption, history of alcohol dependence, and sleep disturbance) accounted for 94% of the shared variance between PTSD symptoms and HRV. Abdominal obesity was not a significant mediator. Conclusions These results indicate that behavioral factors—specifically smoking, alcohol overuse, and sleep disturbance—mediate the association between PTSD and HRV-based indices of autonomic nervous system dysregulation. Benefits from psychiatric and psychological interventions in PTSD may therefore be enhanced by including modification of health behaviors.
American Journal of Drug and Alcohol Abuse | 2015
Patrick S. Calhoun; Amie R. Schry; H. Ryan Wagner; Nathan A. Kimbrel; Paul A. Dennis; Scott D. McDonald; Jean C. Beckham; Eric A. Dedert; Harold Kudler; Kristy Straits-Troster
INTRODUCTION Smoking rates are 80% among persons who are homeless, and these smokers have decreased odds of quitting smoking. Little is known about relapse rates among homeless smokers. More information is needed regarding both quit rates and innovative methods to treat smoking cessation among homeless smokers. Web-based contingency management (CM) approaches have been found helpful in reducing smoking among other difficult-to-treat smoker populations but have been generally limited by the need for computers or frequent clinic-based carbon monoxide (CO) monitoring. This open pilot study builds on a web-based CM approach by evaluating a smartphone-based application for CM named mobile CM (mCM). The study was conducted from January 1, 2013-April 15, 2014. METHOD Following a 1-week training period, 20 homeless veteran smokers (≥ 10 cigarettes daily for 1 year or more and a CO baseline level ≥ 10 ppm) participated in a multicomponent smoking cessation intervention including 4 weeks of mCM. All smokers received 4 smoking cessation counseling sessions, nicotine replacement, and bupropion (if medically eligible). Participants could earn up to
Substance Use & Misuse | 2014
John T. Mitchell; Michelle F. Dennis; Joseph S. English; Paul A. Dennis; Amy G. Brightwood; Jean C. Beckham; Scott H. Kollins
815 (