Table 1 Differences in demographics and clinically relevant variables between maxillofacial and non-maxillofacial injury patients.
Variable | Maxillofacial injury present | Maxillofacial injury absent | p value | ||||
|---|---|---|---|---|---|---|---|
No. of patients | % | % of n | No. of patients | % | % of n | ||
All | 169 | 13.3 | 1106 | 86.7 | |||
Age | |||||||
Mean (S.D.) | 34.2 (12.7) | 29.8 (11.1) | < 0.001 | ||||
Sex | |||||||
Male | 114 | 14.3 | 67.5 | 683 | 85.7 | 61.8 | 0.15 |
Alcohol | |||||||
Yes | 105 | 24.4 | 62.1 | 325 | 75.6 | 29.4 | < 0.001 |
Mechanism | |||||||
Falling over | 146 | 13.5 | 86.4 | 932 | 86.5 | 84.3 | 0.21 |
Collision with stationary object | 18 | 14.8 | 10.7 | 104 | 85.2 | 9.4 | |
Collision with moving vehicle | 5 | 6.7 | 3.0 | 70 | 92.3 | 6.3 | |
Helmet use | |||||||
Yes | 12 | 26.7 | 7.1 | 33 | 73.3 | 3.0 | 0.07 |
No | 81 | 16.1 | 47.9 | 421 | 83.9 | 38.1 | |
No information available | 76 | 10.4 | 45.0 | 652 | 89.6 | 59.0 | |
Other injuries | |||||||
Yes | 72 | 8.6 | 42.6 | 768 | 91.4 | 69.4 | < 0.001 |
Type of other injury | |||||||
Head and neck | 55 | 48.2 | 32.5 | 59 | 51.8 | 5.3 | < 0.001 |
Torso | 7 | 10.0 | 4.1 | 63 | 90.0 | 5.7 | 0.41 |
Extremity | 26 | 3.5 | 15.4 | 711 | 96.5 | 64.3 | < 0.001 |
Time of injury | |||||||
Daytime | 68 | 12.3 | 40.2 | 495 | 87.7 | 43.9 | 0.27 |
Night-time | 101 | 14.2 | 59.8 | 611 | 85.8 | 55.2 | |
