Comprehensive multidisciplinary treatment of chronic pain: a follow-up study of treated and non-treated groups

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Abstract
There are relatively few outcome studies of multidisciplinary chronic pain programs which have utilized no-treatment comparison groups. The present study compared a group of chronic pain patients (N = 42) treated in a comprehensive multidisciplinary pain program with a group of patients (N = 15) who were evaluated but not treated. Comparisons were made at evaluation and at a follow-up period averaging 11 months later. From evaluation to discharge, the treated group showed significant increases in physical functioning. From evaluation to long-term follow-up, both the treated and non-treated groups showed significant decreases in self-report pain ratings and interference with activities ratings. However, only the treated group showed a significant decrease in addictive medication use and increase in work functioning. The return-to-work rate for the treated group was 48% with an additional 28% of the patients being returned to vocational rehabilitation. None of the non-treated group returned to work or vocational rehabilitation. Results are discussed in terms of their support for the conclusion that comprehensive multidisciplinary pain programs produce marked subjective and functional changes.