16 , 28 , 36 , 49 , 52 Patient-Reported Outcome Measures Comparing preoperative baseline PROM and VAS pain scores between cohorts revealed no significant differences; however, HOS-ADL and HOS-SS trended toward near significance ( P = .066) ( Table 3 ).
Specifically, given moderate PI as the reference cohort, weighted differences in mean scores for the low-PI cohort did not reach statistical significance for any measured outcome; however, consistent with our primary analysis, the high-PI group was significantly inferior across all PROMs and VAS pain ( Table 4 ).