In order to analyze correlations with seizure frequency, BSR, PLI and network variables, non-parametric tests were used, because these variables were not normally distributed. Correlations between PLI and network characteristics and epilepsy duration, age, age of epilepsy onset, seizure frequency, and BSR, were analyzed by means of Kendall's Tau correlation coefficients. Possible effects of gender, seizure type (partial or generalized), nature of the lesion (tumor, vascular or mesial temporal sclerosis), and AEDs (monotherapy or polytherapy) on PLI and network characteristics were analysed by means of Mann-Whitney nonparametric U-tests.
