Patterns of seizure remission and relapse after the index seizure, based on dichotomous seizure variables
| Pattern | N (%) | Years of follow-up (median, IQR) | N (%) | Years of follow-up (median, IQR) |
|---|---|---|---|---|
| Epilepsy at presentation (N=354) | Single seizure at presentation (N=302) | |||
| Always seizure-free apart from index seizure | 96 (27) | 22.5 (12, 24) | 118 (39) | 15.9 (11, 24) |
| No year of seizure-freedom | 30 (8) | 7.0 (1, 23) | 28 (9) | 1.0 (0.7, 2) |
| Initial seizure free year(s) followed by seizures | 6 (2) | 13.0 (6, 25) | 6 (2) | 17.9 (12, 24) |
| Initial year(s) with seizures, followed by seizure-freedom | 79 (22) | 22.5 (12, 24) | 54 (18) | 22.9 (13, 24) |
| Initially and finally seizure-free year(s), but with one period (at least 1 year) of seizures intervening | 32 (9) | 16.8 (14, 24) | 22 (7) | 22.5 (15, 24) |
| Initially and finally year(s) with seizures, but with one period (at least 1 year) of seizure-freedom intervening | 13 (4) | 12.0 (6, 23) | 7 (2) | 15.9 (4, 24) |
| Complex pattern, but with terminal seizure-freedom of at least 1 year | 68 (19) | 22.7 (14, 24) | 45 (15) | 23.2 (12, 25) |
| Complex pattern with seizures at the end of follow-up | 30 (8) | 24.1 (14, 25) | 22 (7) | 23.9 (15, 25) |