| Autor: |
Nighbor TD; Vermont Center on Behavior and Health, University of Vermont., Coleman SRM; Vermont Center on Behavior and Health, University of Vermont., Bunn JY; Department of Medical Biostatistics, University of Vermont., DeSarno MJ; Department of Medical Biostatistics, University of Vermont., Morehead AL; Vermont Center on Behavior and Health, University of Vermont., Tang KJ; Vermont Center on Behavior and Health, University of Vermont., Keith DR; Vermont Center on Behavior and Health, University of Vermont., Plucinski ST; Vermont Center on Behavior and Health, University of Vermont., Kurti AN; Vermont Center on Behavior and Health, University of Vermont., Zvorsky I; Vermont Center on Behavior and Health, University of Vermont., Higgins ST; Vermont Center on Behavior and Health, University of Vermont. |
| Jazyk: |
angličtina |
| Zdroj: |
Experimental and clinical psychopharmacology [Exp Clin Psychopharmacol] 2020 Dec; Vol. 28 (6), pp. 706-713. Date of Electronic Publication: 2020 Feb 27. |
| DOI: |
10.1037/pha0000353 |
| Abstrakt: |
The Cigarette Purchase Task (CPT), in which participants estimate the number of cigarettes they would smoke across increasing cigarette prices, measures the relative reinforcing value of cigarettes. Although opioid-dependent individuals are particularly vulnerable to tobacco addiction, more research is needed to elucidate whether and to what extent their motivation to smoke differs from not-opioid-dependent smokers controlling for potential sociodemographic differences. Participants were 173 women (65 opioid-dependent) in an ongoing clinical trial for smoking cessation. Baseline CPT responses were compared between opioid-dependent and not-opioid-dependent women using five demand indices: Demand Intensity; O max ; P max ; Breakpoint (BP); and α, and two latent factors: Amplitude and Persistence. Final regression models adjusted for sociodemographic characteristics differing between the two groups. Opioid-dependent women had greater demand Intensity (i.e., number of cigarettes they would smoke if they were free) than not-opioid dependent women in the adjusted model, F (1, 156) = 6.93, p = .016. No other demand indices differed significantly. Regarding latent factors, demand Amplitude (i.e., volumetric consumption), but not Persistence (i.e., price insensitivity), was greater for opioid-dependent women in the adjusted model, F (1, 146) = 4.04, p = .046. These results further demonstrate that the CPT is a highly sensitive task that can illuminate potentially important individual and population differences in the relative reinforcing value of smoking. Greater demand Intensity and Amplitude differentiated smokers with comorbid opioid dependence; thus, decreasing smoking prevalence among opioid-dependent populations may require policies and interventions that can decrease cigarette demand Intensity and Amplitude. (PsycInfo Database Record (c) 2020 APA, all rights reserved). |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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