a trend toward significancep = 0.074
With respect to the overall motor outcome (ΔMDS-UPDRS-II + III + IV, model R 2 = 0.244, RMSE = 9.777, p = 0.039), we found a significant association with baseline walking endurance (6MWT, p = 0.013), whereas baseline MDS-UPDRS-IV showed only a trend toward significance ( p = 0.074).