Statistical Analysis
fracture
All analyses were performed using SAS statistical software version 9.4 (SAS Institute) and R statistical software version 4.1.0 (R Project for Statistical Computing). Data were analyzed from June 1 to September 6, 2021.Patients were analyzed according to their randomization group. There were no missing data on mortality within 90 days. Due to the higher mortality associated with arthroplasty for a diagnosis of fracture, a planned subgroup analysis was performed according to whether the patient underwent surgery for a diagnosis of fracture or not.The analysis for the primary outcome tested the between-group difference for mortality within 90 days for superiority. This was estimated using cluster summary methods