Initial Evaluation of the Chronic Pain Acceptance Questionnaire – 2

This study derived a two‐item CP AQ for use in busy clinical settings and for repeated measurement during treatment, the CPAQ‐2. An Item Response Theory approach was used to identify the strongest items from the CPAQ‐20, one from each of its two subscales. Next, regression analyses were conducted to evaluate the utility of the CPAQ‐2 by examining variance accounted for in the CPAQ‐8, CPAQ‐20, and in measures of depression, pain‐related fear, physical disability, and psychosocial disability. Four clinical databases were combined (N = 1776) for the analyses. Items 9 and 14 were identified as the strongest CPAQ ‐20 items in the IRT analyses. The sum score of these two items accounted for over 60% of the variance in the CPAQ‐8 and CPAQ‐20. Furthermore, this score accounted for significant variance in measures of depression, pain‐related fear, physical disability, and psychosocial disability after co ntrolling for data collection method (i.e., in clinic or online), participant age, education, pain duration, and usual pain. Finally, the amount of variance accounted for by the CPAQ‐2 was comparable to that accounted for by both the CPAQ‐8 and CPAQ‐20. These results provide initial support fo r the CPAQ‐2 and suggest that it is well suited as a brief assessment of chronic pain acceptance.
Source: European Journal of Pain - Category: Anesthesiology Authors: Tags: ORIGINAL ARTICLE Source Type: research