Table 1.
Demographic and clinical characteristics of the sample (n=524).
| Age categories (years) | |
| ≤20 | 91 (18.8) |
| 21 to ≤40 | 282 (58.1) |
| 41 to ≤60 | 111 (22.9) |
| >60 | 40 (8.2) |
| Gender | |
| Male | 300 (57.3) |
| Female | 224 (42.7) |
| Duration of illness (years) | 14 (11) |
| Classification | |
| Structural | 351 (67) |
| Genetic | 79 (15.1) |
| Infectious | 10 (1.9) |
| Metabolic | 1 (.2) |
| Immune | 9 (1.7) |
| Unknown | 74 (14.1) |
| Regimen | |
| Monotherapy | 216 (41.5) |
| Polytherapy | 285 (54.5) |
| None | 21 (4) |
| Electroencephalography | |
| Focal | 306 (59.8) |
| Generalized | 62 (12.1) |
| Normal | 144 (28.1) |
Data are n (%) for age (P<.01)