FIGURE 4.

Interrelationships between features. (A) Pairwise comparison of demographic and clinical features. Significant relationships after correction for multiple comparisons are shown in yellow. (B) Statistical test used for each pairwise comparison. (C) Distributions of age at epilepsy onset, age at magnetic resonance imaging (MRI) scan, and duration of epilepsy. (D) Duration of epilepsy is significantly associated with seizure freedom (t = −3.0, p < .001). Patients with longer durations of epilepsy are less likely to be seizure‐free. (E) Age at epilepsy onset, lesion size (as a percentage of the total hemisphere size), and seizure freedom are significantly associated. Larger lesions are associated with younger age at epilepsy onset (r = −0.24, p < .001) and are more likely to be operated on (t = 3.69, p < .001). Similarly, patients with a younger age at epilepsy onset are more likely to be operated on (t = −3.76, p < .001). Anova, analysis of variance; Na, not applicable