Correlation of PROMIS CAT with Validated Hip Outcome Scores in Patients Undergoing Hip Arthroscopy


      The Patient Reported Outcomes Measurement Information System (PROMIS) tool was developed by the National Institute of Health to provide efficient, precise and valid patient-reported outcome data. The purpose of this study was to determine whether the PROMIS Computer Adaptive Testing (CAT) tool demonstrates validity against commonly used legacy PRO measures among a population of patients undergoing arthroscopic hip surgery.


      Eligible patients undergoing elective arthroscopic hip surgery completed a series of outcome questionnaires including the visual analog pain scale (VAS), a hip outcome score (HOS; ADL and Sports Subscales), modified harris hip (mHHS), and non-arthritic hip score (NAHS) as well as the PROMIS CAT for pain, physical function and emotional distress (depression). Patients completed all questionnaires at their preoperative evaluation and at regular postoperative intervals.


      A total of 77 patents elected to be included in this study, 28 (36.8%) were male and 49 (64.5%) were female. With regards to questionnaire completion, data from all patient reported outcome measures were gathered from 77 patients at their preoperative clinical visit, 71 during their first postoperative follow up, 69 at 6 weeks and 58 at 3 months postoperatively. Pearson correlations between PROMIS Physical Function T scores and the HOS ADL, HOS Sports, NAHS and mHHS were found to be 0.858, 0.799, 0.773 and 0.830 respectively. With regards to pain, the Pearson correlation between the PROMIS Pain T score and the VAS for pain was found to be 0.599.


      The PROMIS tool was found to correlate well with current standards for patient reported outcome measures for individuals undergoing arthroscopic hip surgery. PROMIS Physical Function demonstrated high correlation with validated PRO. PROMIS Pain had moderate correlation with VAS Pain scores. With this information, the PROMIS tool can be used as a highly efficient and generalizable tool to collect pre- and postoperative data during clinical patient encounters.