Cognitive function is associated with risk of conversion to secondary progressive multiple sclerosis: A cross-sectional study
Fig 2
Feature importance (Mean Decrease Impurity, MDI) ranking of cognitive and clinical predictors in the Random Forest model for RRMS-to-SPMS conversion.
EDSS contributed the highest importance, followed by SDMT, PASAT, BVMT-R, and CVLT-II, whereas demographic and treatment-related variables showed comparatively lower contributions.