Table 1: Socio-demographic features.
EDSS= Expanded Disability Status Scale score; CII = Composite Impairment Index; CRI = Cognitive Reserve Index. Continuous variables were analyzed using two independent sample t test, since the data are normally distributed (Kolmogorov-Smirnov test for normality d<0.20). ° denotes that the dichotomous variable was analyzed using chi square. Asterisk (*) denotes that data were analyzed using non parametric statistics (Mann-Whitney test) since they were not normally distributed.