Characteristics of cases and controls
| Characteristic | Cases* n = 71 | Controls n = 58 |
|---|---|---|
| Males, no. (%) | 60 (84) | 51 (88) |
| Age, mean ± SD | 43 ± 21 | 41 ± 19 |
| Age, yr | ||
| < 18 | 10 (14) | 6 (10) |
| 18–29 | 12 (17) | 10 (17) |
| 30–39 | 5 (7) | 7 (12) |
| 40–49 | 17 (24) | 15 (26) |
| 50–59 | 9 (13) | 7 (12) |
| 60–69 | 9 (13) | 10 (17) |
| > 69 | 9 (13) | 3 (5) |
Note: SD = standard deviation.
↵* Cause of death was a head injury.