The purpose of this study was to evaluate the Patient-Reported Outcomes Measurement Informative System Physical Function Upper Extremity Computer Adaptive Test (PROMIS PFUE CAT) measurement tool against the already validated American Shoulder and Elbow Surgeons (ASES) shoulder assessment form and the Simple Shoulder Test (SST) in patients with shoulder arthritis.
Fifty-two patients with the primary diagnosis of shoulder arthritis were asked to fill out the ASES, SST, and PROMIS PFUE CAT. The time for completion of each survey was measured to determine responder burden, and correlation between the 3 instruments was defined as excellent (>0.7), strong-moderate (0.61-0.7), moderate (0.31-0.6), and poor (0.2-0.3).
The PROMIS PFUE CAT showed a strong-moderate correlation with the SST (r = 0.64; P < .001) and a moderate correlation with the ASES (r = 0.57; P < .001). The average times to complete the SST, ASES, and PROMIS PFUE CAT were determined to be 96.9 ± 25.1 seconds, 160.6 ± 51.5 seconds, and 62.6 ± 22.8 seconds, respectively. The time to complete the PROMIS PFUE CAT was significantly less than the time to complete the SST (P < .001) and the ASES (P < .001).
In patients with shoulder arthritis, The PROMIS PFUE CAT demonstrated strong-moderate correlation with the SST and moderate correlation with the ASES. The time savings of the PROMIS PFUE CAT were small compared with the ASES and SST but demonstrate that moving forward, using the PROMIS PFUE CAT would not place any additional burden on the patient filling out the survey. These findings indicate that the PROMIS PFUE CAT is an appropriate measurement tool for patients with shoulder arthritis.