Fig. 1.
Regression lines and residuals for multiple linear regression (MLR), with Expanded Disability Status Scale (EDSS) score as a dependent variable. (A.) EDSS and Neuroticism: a higher Neuroticism score predicted a higher EDSS score. (B) EDSS and Extraversion: a higher Extraversion score predicted a lower EDSS score. (C) EDSS score and time since disease onset: a longer time since disease onset predicted a higher EDSS score. (D) EDSS and age: a greater age predicted a higher EDSS score.