Probability of having experienced a 3-year remission and 5-year remission by 5, 10 and 15 years after the index seizure, and 5-year terminal remission
| Epilepsy at presentation | Single seizure at presentation | |
|---|---|---|
| 3-year remission (HR for those with epilepsy 0.83 (95% CI 0.70 to 0.99) | N=329 with follow-up to 3 years | N=260 with follow-up to 3 years |
| Probability of remission by 3 years from the index seizure | 0.38 (95% CI 0.33 to 0.44) | 0.48 (95% CI 0.43 to 0.55) |
| Probability of remission by 5 years from the index seizure | 0.67 (95% CI 0.62 to 0.72) | 0.73 (95% CI 0.67 to 0.78) |
| Probability of remission by 10 years from the index seizure | 0.84 (95% CI 0.80 to 0.88) | 0.91 (95% CI 0.86 to 0.94) |
| Probability of remission at 15 years from the index seizure | 0.89 (95% CI 0.85 to 0.92) | 0.94 (95% CI 0.90 to 0.97) |
| 5-year remission (HR for those with epilepsy 0.79 (95% CI 0.66 to 0.95) | N=318 with follow-up to 5 years | N=249 with follow-up to 5 years |
| Probability of remission by 5 years from the index seizure | 0.32 (95% CI 0.27 to 0.38) | 0.45 (95% CI 0.39 to 0.52) |
| Probability of remission by 10 years from the index seizure | 0.72 (95% CI 0.67 to 0.77) | 0.82 (95% CI 0.77 to 0.86) |
| Probability of remission by 15 years from the index seizure | 0.81 (95% CI 0.76 to 0.85) | 0.89 (95% CI 0.84 to 0.93) |
| 5-year terminal remission | N=318 with follow-up to 5 years | N=249 with follow-up to 5 years |
| Number (%) in 5-year terminal remission at end of FU (difference 7%, 95% CI −0.3% to 14%) | 231 (73%, 95% CI 67% to 77%) | 198 (80%, 95% CI 74% to 84%) |
| Number (%) in 5-year terminal remission in those followed to 2009 (difference 5%, 95% CI −4% to 13%) | 142/178 (80%, 95% CI 73% to 85%) | 126/149 (85%, 95% CI 78% to 89%) |
| 5-year terminal remission, off AEDs in those followed to 2009 (difference 8%, 95% CI −3% to 18%) | 103/142 (73%, 95% CI 65% to 79%) | 101/126 (80%, 95% CI 72% to 86%) |
AEDs, antiepileptic drugs; FU, follow-up.