• Behav Res Ther · Aug 2000

    Comparative Study

    Evidence of a disposition toward fearfulness and vulnerability to posttraumatic stress in dysfunctional pain patients.

    • G J Asmundson, M F Bonin, I K Frombach, and G R Norton.
    • Clinical Research and Development Program, Regina Health District, Sask., Canada. gasmundson@reginahealth.sk.ca
    • Behav Res Ther. 2000 Aug 1;38(8):801-12.

    AbstractFew investigations have addressed whether patient subgroups derived using the Multiaxial Assessment of Pain (MAP) [Turk, D. C., & Rudy, T. E. (1987). Towards a comprehensive assessment of chronic pain patients. Behaviour Research and Therapy, 25, 237-249; Turk, D. C., & Rudy, T. E. (1988). Toward an empirically derived taxonomy of chronic pain patients: integration of psychological assessment data. Journal of Consulting and Clinical Psychology, 56, 233-238.] differ with regard to fear and avoidance. It has, however, been reported that dysfunctional patients exhibit more pain-specific fear and avoidance than patients classified as interpersonally distressed or minimizers/adaptive copers [Asmundson, G. J. G., Norton, G. R., & Allerdings, M. D. (1997). Fear and avoidance in dysfunctional chronic back pain patients. Pain, 69, 231-236.]. We attempted to extend these findings by examining two fear constructs that are receiving increased attention in the chronic pain literature-anxiety sensitivity and PTSD. The sample comprised 115 patients with chronic pain. Of these, 14 (12.2%) were classified as dysfunctional, 21 (18.3%) as interpersonally distressed and 47 (40.8%) as minimizers/adaptive copers. Between-group differences were observed on the fear of cognitive and emotional dyscontrol dimension of anxiety sensitivity, total and symptom cluster scores on the PTSD measure, and depression. No differences were observed for the fear of somatic sensations dimension of anxiety sensitivity or agoraphobia, social phobia, and blood/injury fears. Dysfunctional patients generally exhibited elevated scores relative to one or both of the other MAP subgroups on fear of cognitive and emotional dyscontrol, depressed affect, PTSD symptom total score and PTSD symptom cluster scores. As well, a substantial proportion of dysfunctional and interpersonally distressed patients were classified as having PTSD (71.4 and 42.9%, respectively) when compared to minimizers/adaptive copers (21.3%). These results suggest that MAP subgroups differ with regard to their propensity to be(come) fearful and in their likelihood of having PTSD. Theoretical and clinical implications are discussed.

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