Predictors | Coefficient of Determination R2 (Best Value = 1.0) | Mean Squared Error (Best Value = 0.0) |
---|---|---|
Clinical predictors | 0.54 | 41.87 |
Clinical predictors + SCCSA | 0.72 | 25.39 |
Clinical predictors + GMCSA + WMCSA/GMCSA | 0.74 | 23.77 |
Note:—WMCSA indicates white matter cross-sectional area.
↵a GMCSA, WMCSA, and SCCSA are averaged across the C4–C6 vertebral levels. Clinical predictors include age, body mass index, sex, site of onset, delay between first symptoms and diagnosis, total ALSFRS-R score at baseline, and total ALSFRS-R score progression rate at baseline.