Evaluation of preoperative pain in patients undergoing shoulder surgery using the PROMIS pain interference computer-adaptive test

Abstract

ObjectiveThe purpose of this study was to evaluate the Patient Reported Outcomes Measurement Information System (PROMIS) computerized adaptive testing Pain Interference (PROMIS PI) item bank in patients undergoing shoulder surgery. We hypothesized that PROMIS PI would exhibit a strong positive correlation with the numerical pain scale for the operative shoulder (shoulder NPS) with less floor and ceiling effects. Secondary study aims included assessing the relationships between patient characteristics and PROMIS PI. DesignAnalytical cross-sectional study. SettingUrban academic medical center. PatientsOne-hundred and ninety-five patients undergoing shoulder surgery between June 2015 to June 2017. Main outcome measuresAll patients completed a series of patient-reported outcomes measures, including PROMIS PI and NPS. Non-parametric tests were used for bivariate analysis. Multivariable regression models were used to determine independent associations. ResultsThere was a moderate correlation between the PROMIS PI and shoulder NPS scores (rs = 0.53; p < 0.001). PROMIS PI had no ceiling or floor effects while shoulder NPS had 26 patients (13.3%) at either the floor or the ceiling. PROMIS PI demonstrated a strong correlation with PROMIS Physical Function (rs = -0.65; p < 0.001), ASES total score (rs = -0.67; p < 0.001), and PROMIS Fatigue (rs = 0.64; p < 0.001). ConclusionsThe strong association noted between PROMIS PI and psychosocial and behavioral factors, versus that of NPS, demonstrates that PROMIS Pain Interference may be a more appropriate choice as an outcome measure where the surgeon is concerned about a patient’s improvement of functioning and decrease in the impact of pain in other aspects of wellbeing following shoulder surgery. Level of evidenceIV.