Table 1. Descriptive data of the study population.
| Variable | Value | |
|---|---|---|
| Sex, female:male | 150:178 (45.7:54.3) | |
| Age at onset, years* | 21.1±14.7 | |
| Age at diagnosis, years† | 25.6±16.1 | |
| Age at first visit, years | 31.8±13.8 | |
| First clinic visit | ||
| De novo | 94 (28.7) | |
| Referred | 153 (46.6) | |
| Unknown | 81 (24.7) | |
| Seizure onset | ||
| Focal | 275 (83.8) | |
| Generalized | 52 (15.9) | |
| Unknown | 1 (0.3) | |
| Epilepsy classification | ||
| Focal | 247 (75.3) | |
| Generalized | 51 (15.5) | |
| Combined | 29 (8.8) | |
| Unknown | 1 (0.3) | |
| Etiology | ||
| Structural | 109 (33.2) | |
| Genetic | 48 (14.6) | |
| Infectious | 11 (3.4) | |
| Hypoxic | 1 (0.3) | |
| Immune | 17 (5.2) | |
| Unknown | 142 (43.3) | |
| Febrile convulsion | 25 (7.6) | |
| Family history of epilepsy | 11 (3.4) | |
| Seizure frequency during previous year | 30.0±138.8 | |
Data are n (%) or mean±standard deviation values.
*Data available from 321 patients; †Data available from 205 patients.