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Randomized Controlled Trial
. 2011 Dec;152(12):2710-2720.
doi: 10.1016/j.pain.2011.07.007. Epub 2011 Sep 14.

Randomized trial of group cognitive behavioral therapy compared with a pain education control for low-literacy rural people with chronic pain

Beverly E Thorn  1 , Melissa A Day, John Burns, Melissa C Kuhajda, Susan W Gaskins, Kelly Sweeney, Regina McConley, Charles L Ward, Chalanda Cabbil
Affiliations
Randomized Controlled Trial

Randomized trial of group cognitive behavioral therapy compared with a pain education control for low-literacy rural people with chronic pain

Beverly E Thorn et al. Pain. 2011 Dec.

Abstract

Chronic pain is a common and costly experience. Cognitive behavioral therapies (CBT) are efficacious for an array of chronic pain conditions. However, the literature is based primarily on urban (white) samples. It is unknown whether CBT works in low-socioeconomic status (SES) minority and nonminority groups. To address this question, we conducted a randomized controlled trial within a low-SES, rural chronic pain population. Specifically, we examined the feasibility, tolerability, acceptability, and efficacy of group CBT compared with a group education intervention (EDU). We hypothesized that although both interventions would elicit short- and long-term improvement across pain-related outcomes, the cognitively-focused CBT protocol would uniquely influence pain catastrophizing. Mixed design analyses of variance were conducted on the sample of eligible participants who did not commence treatment (N=26), the intention-to-treat sample (ITT; N=83), and the completer sample (N=61). Factors associated with treatment completion were examined. Results indicated significantly more drop-outs occurred in CBT. ITT analyses showed that participants in both conditions reported significant improvement across pain-related outcomes, and a nonsignificant trend was found for depressed mood to improve more in CBT than EDU. Results of the completer analyses produced a similar pattern of findings; however, CBT produced greater gains on cognitive and affect variables than EDU. Treatment gains were maintained at 6-month follow-up (N=54). Clinical significance of the findings and the number of treatment responders is reported. Overall, these findings indicate that CBT and EDU are viable treatment options in low-SES minority and nonminority groups. Further research should target disseminating and sustaining psychosocial treatment options within underserved populations.

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Conflict of interest statement

The authors have no conflicts of interest to report.

Figures

Figure 1
Figure 1
Participant flow through the RCT 1 Randomization with replacement was conducted such that 15 more individuals were randomized to CBT than EDU due to the higher dropout rates observed in CBT during the first half of the study
See this image and copyright information in PMC

Comment in

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