Validation of PROMIS CATs and PROMIS Global Health in an Interdisciplinary Pain Program for Patients With Chronic Low Back Pain

Study Design. Retrospective cohort study. Objective. To (1) confirm validity of Patient-Reported Outcomes Measurement Information System (PROMIS) physical function and pain interference computer-adaptive tests (CATs) and (2) assess the validity of PROMIS Global Health (GH) and five additional PROMIS CATs: social role satisfaction, fatigue, anxiety, depression, and sleep disturbance in a population of patients with chronic low back pain (cLBP) who completed a 3-month Interdisciplinary Pain Program (IPP). Summary of Background Data. Recent recommendations for assessing outcomes in patients with cLBP have included PROMIS scales; however, there is a need for further evaluation, and PROMIS GH has not been studied in this population. Methods. The study cohort included patients with cLBP who completed the entirety of a 3-month IPP between August 2016 and December 2018. Patient-reported outcome measures (PROMs) were analyzed before the start of the IPP and at graduation. Convergent and discriminant validity were evaluated using Pearson correlation coefficients. Known groups’ validity assessed the change in PROMIS scores stratified by improvement on the Modified LBP Disability Questionnaire. Responsiveness was evaluated with standardized response means based on global impression of change. Results. IPP was completed by 217 patients (67.7% women, age 53.8 ± 12.8). Convergent validity was supported (P 
Source: Spine - Category: Orthopaedics Tags: HEALTH SERVICES RESEARCH Source Type: research