The association between pain self-efficacy and patient-reported outcome measures for hand disorders: a cross-sectional study.

Introduction: Multiple psychological factors influence the functioning of patients with hand disorders. Pain self-efficacy is a positive psychological factor, which concerns an individual's confidence to function despite experiencing pain. This study aimed to analyse the association between pain self-efficacy and a patient-reported outcome measure (PROM) for hand and wrist disorders. Methods: Cross-sectional data from patient records were collected prior to hand therapy to analyse the correlation between pain self-efficacy and a PROM for hand and wrist disorders. The assessment tools consisted of the Dutch translations of the Pain Self-Efficacy Questionnaire Short Form (PSEQ-2) and the Patient Rated Wrist Hand Evaluation (PRWHE). Results: The findings were reported for the entire sample of 185 respondents (61% women). The PSEQ-2 and the PRWHE were strongly and significantly correlated, which signifies that a higher pain self-efficacy was associated with less pain and disability as measured by the PRWHE. Within a multivariable regression model which accounted for confounding variables, pain self-efficacy independently predicted 28% of the PRWHE scores. Conclusions: A strong association between the Dutch PSEQ-2 and the PRWHE was found in this sample of hand therapy patients. This study was limited by the use of retrospective data and by the lack of validation of the Dutch PSEQ-2. The findings were consistent with existing research which reported similar correlations between upper extremity PROM scores and pain self-efficacy. The positively worded PSEQ presents a chance to routinely assess pain self-efficacy as a key psychological factor while also affirming a positive coping strategy.