Table 2.
Baseline and 24-h CT findings in patients with and without seizures.
| Characteristics |
Any seizure |
Early seizure |
||||
|---|---|---|---|---|---|---|
| Yes (n = 193, 8.3%) | No (n = 2132, 91.7%) | p | Yes (n = 163, 7.0%) | No (n = 2162, 93%) | p | |
| Baseline CT | ||||||
| Haematoma location | ||||||
| Lobar, n (%) | 106 (55.8) | 582 (27.8) | <0.001 | 90 (55.6) | 598 (28.2) | <0.001 |
| Deep, n (%) | 78 (41.1) | 1373 (65.6) | <0.001 | 68 (42.0) | 1383 (65.2) | <0.001 |
| Infratentorial, n (%) | 6 (3.2) | 139 (6.6) | 0.060 | 4 (2.5) | 141 (6.6) | 0.036 |
| Intraventricular haemorrhage, n (%) | 66 (34.7) | 641 (30.5) | 0.22 | 55 (34.0) | 652 (30.6) | 0.37 |
| Haematoma volume, mL, mean (SD) | 33.2 (31.4) | 23.1 (26.6) | <0.001 | 32.5 (31.7) | 23.4 (26.7) | <0.001 |
| Perihaematomal oedema volume, mL, mean (SD) | 15.8 (15.3) | 12.7 (15.5) | 0.011 | 15.3 (14.5) | 12.8 (15.5) | 0.057 |
| Midline shift, mm, mean (SD) | 5.9 (2.5) | 5.9 (2.8) | 0.78 | 5.8 (2.4) | 5.9 (2.8) | 0.84 |
| Midline shift ≥5 mm, n (%) | 44 (23.5) | 327 (15.7) | 0.005 | 35 (21.9) | 336 (15.9) | 0.049 |
| Old infarct(s), n (%) | 114 (60.0) | 1279 (60.7) | 0.85 | 93 (57.4) | 1300 (60.9) | 0.38 |
| Cerebral atrophy, n (%) | 178 (93.7) | 1921 (91.2) | 0.24 | 151 (93.2) | 1948 (91.2) | 0.39 |
| Periventricular leukoaraiosis, n (%) | 101 (52.3) | 957 (44.9) | 0.040 | 84 (51.9) | 974 (45.6) | 0.13 |
| 24-h CT | ||||||
| Haematoma expansion, n (%) | 55 (34.8) | 513 (26.4) | 0.031 | 47 (35.1) | 523 (26.9) | 0.040 |
| Absolute haematoma growth, mL, mean (SD) | 7.6 (18.2) | 4.7 (14.7) | 0.052 | 8.4 (19.2) | 4.7 (14.6) | 0.035 |
| Absolute oedema growth, mL, mean (SD) | 9.7 (16.6) | 6.4 (11.8) | 0.014 | 10.6 (16.9) | 6.4 (11.8) | 0.005 |
| Intraventricular haemorrhage extensiona, n (%) | 26 (15.1) | 154 (7.8) | 0.003 | 21 (14.5) | 158 (7.9) | 0.005 |
| Change in midline shift, mm, mean (SD) | 0.8 (4.2) | 1.2 (3.7) | 0.48 | 1.0 (4.3) | 1.2 (3.7) | 0.83 |
Chi-squared and Student’s t tests are used for comparisons of categorical variables (n, %) and mean (standard deviation) respectively.
aIntraventricular haemorrhage extension was present if intraventricular haemorrhage was present on 24-h CT but not on baseline CT.