Table 2.
Patient demographics by outcome
| Feature | Total | Good outcome Engel I | Poor outcome Engel II–IV | P | |
|---|---|---|---|---|---|
| Patients, n | 43 | 25 | 18 | – | |
| Male/female, n | 22/21 | 13/12 | 9/9 | 1a | |
| Age at surgery, years | 12 (7.3–15.8) | 11 (6.8–15) | 13 (9–16) | 0.27b | |
| Age at epilepsy onset, years | 4 (1.4–7) | 4 (1.3–7.3) | 4 (1.5–7) | 0.76b | |
| Epilepsy side | L | 15/12 | 8/8 | 7/4 | 0.91a |
| R | 4/4 | 3/2 | 1/3 | ||
| Gen | 3/5 | 2/2 | 1/2 | ||
| Pathology | NL | 5/6 | 1/4 | 4/2 | 0.56a |
| MCD | 13/13 | 10/7 | 3/6 | ||
| ACQ | 4/2 | 2/1 | 2/1 | ||
| iEEG type | ECoG | 11/6 | 5/4 | 6/2 | 0.86a |
| sEEG | 3/8 | 2/5 | 1/3 | ||
| Both | 8/7 | 6/3 | 2/4 | ||
| iEEG, n | ECoG | 96 (86–120) | 88 (78–100) | 120 (92–132) | 0.02b |
| sEEG | 162 (112–189) | 162 (93–188) | 158 (145–189) | ||
| Both | 112 (101–124) | 102(94–124) | 122 (112–154) | ||
| Resection volume, cm3 | 22.7 (11.1–43.8) | 25.2 (14.9–47.2) | 11.2 (6.7–25.2) | 0.03b | |
| Resection percentage of total brain volume, % | 2.3 (1.1–3.8) | 2.6 (1.8–4.4) | 1.2 (0.7–2.9) | 0.04b | |
| SOZ channels, n | 9 (5–20) | 10 (6.75–20) | 7 (5–22) | 0.42b | |
| T lobe/extra T | 9/34 | 6/19 | 3/15 | 0.71a | |
| Follow-up, years | 4 (2–5.8) | 4 (2–6) | 3.5 (2–5) | 0.53b | |
ACQ = acquired (i.e. stroke, neoplasm or trauma); Gen = generalized; iEEG = intracranial EEG; L = left; MCD = malformation of cortical development (i.e. focal cortical dysplasia, polymicrogyria or tuberous sclerosis complex); NL = non-lesional; R = right; T = temporal.
Fisher's exact test.
Wilcoxon rank sum test.