Table 4.
Features of patients with extradural haematoma or subdural haematoma. Figures are numbers (percentage) unless stated otherwise
| Characteristics
|
Extradural haematoma
|
Subdural haematoma
|
|||||
|---|---|---|---|---|---|---|---|
| <65 (n=167)
|
⩾65 (n=18)
|
P value
|
<65 (n=249)
|
⩾65 (n=93)
|
P value
|
||
| Large haematomas (where size was specified) | 52 (36) | 2 (18) | 0.33 | 47 (25) | 20 (30) | 0.42 | |
| Serious extracranial injury (score on AIS ⩾3) | 16 (10) | 0 | 0.37 | 40 (16) | 14 (15) | 0.87 | |
| Median Glasgow coma score | 14 | 13.5 | 0.12 | 13 | 13 | 0.44 | |
| Glasgow coma score ⩽8 | 21 (13) | 4 (22) | 0.34 | 78 (31) | 23 (25) | 0.47 | |
| Median systolic blood pressure (mm Hg) | 138 | 139 | 0.36 | 140 | 155 | <0.001 | |
| Median respiratory rate (breaths/min) | 18 | 18 | 0.51 | 18 | 20 | 0.019 | |
| Pre-existing medical conditions | 43 (28) | 9 (53) | 0.049 | 102 (44) | 57 (63) | 0.003 | |
AIS=abbreviated injury scale.