Table 2.
Patient characteristics
| Intracranial lesions | ||||||
|---|---|---|---|---|---|---|
| absent | present | |||||
| n | (%) | n | (%) | p-value | ||
| Fracture skull | Absent | 2901 | (98.7) | 207 | (85.2) | 0.000 |
| Present | 37 | (1.3) | 36 | (14.8) | ||
| EMV presentation (total) = 13 | Absent | 2818 | (95.9) | 212 | (87.2) | 0.000 |
| Present | 120 | (4.1) | 31 | (12.8) | ||
| EMV presentation (total) = 14 | Absent | 2447 | (83.3) | 166 | (68.3) | 0.000 |
| Present | 491 | (16.7) | 77 | (31.7) | ||
| Memory deficit | Absent | 2535 | (86.3) | 171 | (70.4) | 0.000 |
| Present | 403 | (13.7) | 72 | (29.6) | ||
| Contusion skull | Absent | 1863 | (63.4) | 103 | (42.4) | 0.000 |
| Present | 1075 | (36.6) | 140 | (57.6) | ||
| Loss of consciousness | Absent | 1169 | (39.8) | 61 | (25.1) | 0.000 |
| Present | 1769 | (60.2) | 182 | (74.9) | ||
| Seizure | Absent | 2920 | (99.4) | 238 | (97.9) | 0.000 |
| Present | 18 | (0.6) | 5 | (2.1) | ||
| Vomiting | Absent | 2651 | (90.2) | 188 | (77.4) | 0.000 |
| Present | 287 | (9.8) | 55 | (22.6) | ||
| Coumarins | Absent | 2868 | (97.6) | 230 | (94.7) | 0.005 |
| Present | 70 | (2.4) | 13 | (5.3) | ||
| Neurological deficit (all) | Absent | 2676 | (91.1) | 201 | (82.7) | 0.000 |
| Present | 262 | (8.9) | 42 | (17.3) | ||
| Cause | Reference | 1882 | (64.1) | 102 | (42) | 0.000 |
| ped.or cyclist | 297 | (10.1) | 51 | (21) | ||
| Fall | 702 | (23.9) | 82 | (33.7) | ||
| Ejected | 57 | (1.9) | 8 | (3.3) | ||
| PTA in 3 categories | < = 2 hrs. | 2910 | (99.0) | 232 | (95.5) | 0.000 |
| > 2 hrs. and < = 4 hrs. | 25 | (0.9) | 6 | (2.5) | ||
| > 4 hrs. | 3 | (0.1) | 5 | (2.1) | ||
| mean | (sd) | mean | (sd) | p-value | ||
| EMV change | 0.07 | (0.50) | -0.04 | (1.27) | 0.186 | |
| Age - 16 per decade | 2.48 | (1.85) | 3.22 | (2.01) | 0.000 | |