Behavioral Test (BAT-Back): Preliminary Evidence for a Successful Predictor of Treatment Outcome After Exposure Treatment for Chronic Low Back Pain

This study examined pretreatment self-report and behavioral measures as predictors of treatment outcome for n=43 patients experiencing disabling chronic low back pain, who took part in a randomized controlled trial in which they received 10 to 15 sessions of exposure treatment. Only patients with elevated fear avoidance based on self-report measures were included. Data were analyzed using regression analyses and classification and regression trees. Results: Regression analyses showed that higher avoidance behavior at pretreatment as measured by the Behavioral Avoidance Test—Back Pain (BAT-Back) significantly predicted reduction in global disability (with a small to medium effect), but not in specific disability. Self-report measures failed to predict treatment success for both outcome measures. Classification and regression trees divide subgroups who might benefit from exposure treatment through a BAT-Back score of>22 for Pain Disability Index. Discussion: There is some preliminary evidence that pretreatment avoidance behavior might be an indicator for reduction in global disability after exposure treatments in patients experiencing disabling chronic low back pain and elevated fear avoidance. We identified preliminary cutoff scores that need further investigation.
Source: The Clinical Journal of Pain - Category: Anesthesiology Tags: Original Articles Source Type: research