Table 2.
Cox proportional hazard models* for postsurgical seizure freedom at last available follow-up. Covariate p-value, adjusted hazard ratio, and 95% CI for hazard ratio are reported.
| Characteristic | p-value | hazard ratio | 95% CI of hazard ratio |
|---|---|---|---|
| Complete Resection | 0.017 | 0.428 | 0.214–0.858 |
| Age of seizure onset | 0.634 | 1.002 | 0.993–1.011 |
| Developmental disability | 0.018 | ||
| Mild | 0.931 | 1.041 | 0.418–2.59 |
| Mod | 0.211 | 1.794 | 0.718–4.48 |
| Severe | 0.005 | 6.471 | 1.765–23.728 |
| PET abnormalities | 0.305 | ||
| Multiregional | 0.333 | 1.509 | 0.657–3.467 |
| Hemispheric | 0.986 | 0.000 | 0.000 |
| Normal | 0.187 | 0.344 | 0.071–1.676 |
| Histopathology | 0.049 | ||
| FCD other than Type2b | 0.121 | 2.451 | 0.789–7.614 |
| Tumour | 0.318 | 0.408 | 0.070–2.368 |
| Other etiology | 0.092 | 2.680 | 0.852–8.427 |
*Normal development, focal PET abnormalities, and FCD type 2b (focal cortical dysplasia) have been used as reference categories for development, PET and histopathology categories. CI, confidence interval.