Table 1 Distribution of head injury cases, use of computed tomography (CT) and CT findings in 585 head injured patients.
Injuries revealed by CT (n = number of observations) | ||||||||
|---|---|---|---|---|---|---|---|---|
Severity category | Number of cases | Proportion examined with CT (n = number of cases) | Proportion with CT verified injury (n = number of cases) | Cerebral contusion | tSAH | SDH | EDH | Fracture |
Minimal | 153 | 84 (55%) | 1 (1%) | 0 | 0 | 0 | 0 | 1 |
Mild | 339 | 284 (84%) | 15 (4%) | 3 | 1 | 2 | 1 | 8 |
Moderate | 16 | 16 (100%) | 9 (56%) | 3 | 4 | 2 | 1 | 5 |
Severe | 77 | 77 (100%) | 76 (99%) | 38 | 23 | 35 | 10 | 43 |
Total | 585 | 461 (79%) | 101 (22%) | 44 | 28 | 39 | 12 | 57 |