| Idiopathic | Structural | ||
---|---|---|---|---|
 | N | % | N | % |
Status at study end | ||||
 Alive | 45 | 74 | 4 | 31 |
 Deceased | 16 | 26 | 9 | 15 |
Gender | ||||
 Female | 27 | 44 | 10 | 77 |
  Entire | 21 | 78 | 9 | 90 |
  Neutered | 6 | 22 | 1 | 10 |
 Male | 34 | 56 | 3 | 23 |
  Entire | 24 | 71 | 2 | 67 |
  Neutered | 10 | 29 | 1 | 33 |
Seizure type | ||||
 Focal | 12 | 20 | 1 | 8 |
 Focal evolving into generalized | 34 | 56 | 9 | 69 |
 Primary generalized | 11 | 18 | 2 | 15 |
 Unknown | 4 | 7 | 1 | 8 |
Diagnostic work-up | ||||
 Magnetic resonance imaging | 30 | 49 | 9 | 69 |
 Computed tomography | 0 | 0 | 4 | 31 |
 Cerebrospinal fluid analysis | 20 | 33 | 6 | 46 |
 Post mortem histopathology | 1 | 2 | 6 | 46 |
Seizure severity | ||||
 Cluster seizures (prior to inclusion) | 18 | 30 | 12 | 92 |
 Status epilepticus (prior to inclusion) | 2 | 3 | 0 | 0 |
Median age at seizure onset (months)a | 35 (range: 5–114) | 59 (range 3–144) | ||
Median age at inclusion (months) | 43 (range: 13–119) | 48 (range: 3–146) | ||
Median months of inclusion | 28 (range: 1–42) | 1 (range: 0–38) | ||
Median weight at inclusion (kg)b | 23.9 (range: 2–71) | 8.9 (range: 2.2–32) | ||
Survival | ||||
 Survival time (months) | 23 (range: 3–65) | 2 (range: 0–49) |