BACKGROUND:Contingency management (CM) is an efficacious intervention for reducing cigarette smoking. However, CM is rarely adopted as a smoking cessation treatment in the community. This study analyzed the effectiveness of a CM procedure in combination with a cognitive-behavioral treatment (CBT) for smoking cessation among treatment-seeking patients from the general population. METHODS:A total of 92 patients were randomly assigned to one of two treatment conditions: CBT (N=49) or CBT+CM (N=43). The CM procedure included a voucher program through which nicotine abstinence was reinforced on a schedule of escalating magnitude of reinforcement with a reset contingency. Self-reported smoking status was confirmed with both carbon monoxide (CO) level in expired air and cotinine levels in urine. RESULTS: Of the patients who received CBT+CM 97.7%, completed 6 weeks of treatment, versus 81.6% of those who received CBT (p=.03). At the post-treatment assessment, 95.3% of the patients assigned to the CBT+CM condition achieved abstinence in comparison to the 59.2% in the CBT group (p=.000). At the one-month follow-up, 72.1% of the patients who received CBT+CM maintained smoking abstinence, versus 34.7% in the CBT group (p=.001). At the six-month follow-up, 51.2% of the patients who received CBT+CM maintained smoking abstinence in comparison to the 28.6% in the CBT group (p=.04). CONCLUSIONS: Results from this randomized clinical trial showed that adding CM to a CBT is effective, and is feasible as an intervention approach with treatment-seeking patients in a community setting.
RCT Entities:
BACKGROUND: Contingency management (CM) is an efficacious intervention for reducing cigarette smoking. However, CM is rarely adopted as a smoking cessation treatment in the community. This study analyzed the effectiveness of a CM procedure in combination with a cognitive-behavioral treatment (CBT) for smoking cessation among treatment-seeking patients from the general population. METHODS: A total of 92 patients were randomly assigned to one of two treatment conditions: CBT (N=49) or CBT+CM (N=43). The CM procedure included a voucher program through which nicotine abstinence was reinforced on a schedule of escalating magnitude of reinforcement with a reset contingency. Self-reported smoking status was confirmed with both carbon monoxide (CO) level in expired air and cotinine levels in urine. RESULTS: Of the patients who received CBT+CM 97.7%, completed 6 weeks of treatment, versus 81.6% of those who received CBT (p=.03). At the post-treatment assessment, 95.3% of the patients assigned to the CBT+CM condition achieved abstinence in comparison to the 59.2% in the CBT group (p=.000). At the one-month follow-up, 72.1% of the patients who received CBT+CM maintained smoking abstinence, versus 34.7% in the CBT group (p=.001). At the six-month follow-up, 51.2% of the patients who received CBT+CM maintained smoking abstinence in comparison to the 28.6% in the CBT group (p=.04). CONCLUSIONS: Results from this randomized clinical trial showed that adding CM to a CBT is effective, and is feasible as an intervention approach with treatment-seeking patients in a community setting.
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