Characteristics of bicyclists involved in collisions with automobiles
| Patient characteristics | Bicyclists injured by automobiles |
| (N=7159) | |
| Age, median (IQR) | 45 (28–56) |
| Age group, n (%) | |
| 16–45 | 3694 (51.6) |
| 46–65 | 2752 (38.4) |
| >65 | 713 (10.0) |
| Male gender, n (%) | 6106 (85.3) |
| Injury Severity Score, median (IQR) | 14 (10–22) |
| Injury Severity Score, n (%) | |
| 1–15 | 3479 (52.0) |
| 16–25 | 1924 (28.7) |
| >25 | 1291 (19.3) |
| Emergency department, n (%) | |
| GCS score <9 | 1038 (14.8) |
| SBP <90 | 383 (5.3) |
| Helmet use, n (%) | 1921 (25.4) |
| Intoxicated, n (%) | 2468 (34.5) |
| Injury region, n (%) | |
| Head | 3834 (53.5) |
| Spine | 1794 (25.1) |
| Chest | 3209 (44.8) |
| Abdomen | 976 (13.6) |
| Pelvis | 828 (11.6) |
| Upper extremity | 1455 (20.3) |
| Lower extremity | 2481 (34.7) |
| Polytrauma, n (%) | 4180 (58.3) |
GCS, Glasgow Coma Scale; SBP, systolic blood pressure.