PMID- 37154697 OWN - NLM STAT- Publisher LR - 20231221 IS - 2192-5682 (Print) IS - 2192-5682 (Linking) DP - 2023 May 8 TI - Independent Prognostic Factors Associated With Improved Patient-Reported Outcomes in the Prospective Evaluation of Elderly Deformity Surgery (PEEDS) Study. PG - 21925682231174182 LID - 10.1177/21925682231174182 [doi] AB - STUDY DESIGN: Prospective, multicenter, international, observational study. OBJECTIVE: Identify independent prognostic factors associated with achieving the minimal clinically important difference (MCID) in patient reported outcome measures (PROMs) among adult spinal deformity (ASD) patients >/=60 years of age undergoing primary reconstructive surgery. METHODS: Patients >/=60 years undergoing primary spinal deformity surgery having >/=5 levels fused were recruited for this study. Three approaches were used to assess MCID: (1) absolute change:0.5 point increase in the SRS-22r sub-total score/0.18 point increase in the EQ-5D index; (2) relative change: 15% increase in the SRS-22r sub-total/EQ-5D index; (3) relative change with a cut-off in the outcome at baseline: similar to the relative change with an imposed baseline score of