Variables | OR (IC Ã 95%) | ORaj (IC Ã 95%) |
---|---|---|
Helmet use | ||
 Yes | 1 | 1 |
 No | 4.0 (2.7–6.0) *** | 3.8 (2.5–5.7) *** |
Fatigue/drowsiness during the crash | ||
 No | 1 | 1 |
 Yes | 1.9 (1.2–3.1) ** | 1.9 (1.2–3.1) ** |
Medical history | ||
 Yes | 1 | 1 |
 No | 2.0 (1.2–3.1) ** | 2.0 (1.2–3.3) ** |
Sex | ||
 Female | 1 |  |
 Male | 1.8 (1.0–3.2) ** |  |
Telephone use during the crash | ||
 No | 1 |  |
 Yes | 4.1 (1.2–13.8) ** |  |
Antagonist | ||
 Moving vehicles | 1 |  |
 No antagonist | 1.9 (1.2–2.9) ** |  |
 Stationary vehicles or obstacles | 1.8 (1.0–3.7) * |  |
 Pedestrians, animals or moving objects | 1.6 (0.8–3.1) |  |
Time of day | ||
 Day | 1 |  |
 Dusk | 1.2 (0.7–1.9) |  |
 Dawn | 1.2 (0.6–2.3) |  |
 Night | 1.6 (1.1–2.3) ** |  |
Visibility | ||
 Acceptable | 1 |  |
 Good | 1.6 (1.00–2.5) * |  |
 Poor | 1.9 (1.3–2.9) ** |  |