Variable | Bicycle | Motorcycle | Total | p-value | ||
---|---|---|---|---|---|---|
Number of injury cases | 37,410 | 68.8% | 16,932 | 31.2% | 54,342 | Â |
Age | 11.6 ± 4.0 |  | 17.1 ± 1.9 |  | 13.3 ± 4.3 | 0.000 |
Sex, male | 32,478 | 86.8% | 16,076 | 94.9% | 48,554 | 0.000 |
Season of injury | Â | Â | Â | Â | Â | 0.000 |
 Spring | 11,373 | 30.4% | 4,099 | 24.2% | 15,472 |  |
 Summer | 13,585 | 36.3% | 4,793 | 28.3% | 18,378 |  |
 Autumn | 9,997 | 26.7% | 4,724 | 27.9% | 14,721 |  |
 Winter | 2,455 | 6.6% | 3,316 | 19.6% | 5,771 |  |
Time of injury | Â | Â | Â | Â | Â | 0.000 |
 Morning (06:00 ~ 11:59) | 1,379 | 3.7% | 3,534 | 20.9% | 4,913 |  |
 Afternoon (12:00 ~ 17:59) | 4,279 | 11.4% | 1,435 | 8.5% | 5,714 |  |
 Night (18:00 ~ 23:59) | 13,883 | 37.1% | 3,484 | 20.6% | 17,367 |  |
 Dawn (00:00 ~ 05:59) | 17,869 | 47.8% | 8,479 | 50.1% | 26,348 |  |
Helmet use | Â | Â | Â | Â | Â | 0.000 |
 Yes | 3,856 | 10.3% | 7,903 | 46.7% | 11,759 |  |
 No | 33,554 | 89.7% | 9,029 | 53.3% | 42,583 |  |
Insurance type | Â | Â | Â | Â | Â | 0.0001 |
 National health care | 26,893 | 71.9% | 4,120 | 24.3% | 31,013 |  |
 Traffic accident insurance | 9,202 | 24.6% | 11,792 | 69.6% | 20,994 |  |
 Industrial accident insurance | 2 | 0.0% | 70 | 0.4% | 72 |  |
 Medicaid | 883 | 2.4% | 441 | 2.6% | 1,324 |  |
 Others | 430 | 1.1% | 509 | 3.0% | 939 |  |
Means of visit | Â | Â | Â | Â | Â | 0.0001 |
 911 | 9,371 | 25.1% | 10,499 | 62.0% | 19,870 |  |
 hospital based ambulance | 358 | 1.0% | 595 | 3.5% | 953 |  |
 Self-visit | 27,456 | 73.4% | 5,730 | 33.8% | 33,186 |  |
 Others | 255 | 0.7% | 108 | 0.6% | 363 |  |
Area | Â | Â | Â | Â | Â | 0.0001 |
 Urban area | 27,561 | 73.7% | 11,825 | 69.8% | 39,386 |  |
  number of urban injuries /100,000 population | 133.2 |  | 57.2 |  |  |  |
 Rural area | 9,849 | 26.3% | 5,107 | 30.2% | 14,956 |  |
  number of rural injuries /100,000 population | 111.2 |  | 57.6 |  |  |  |
Conciousness | Â | Â | Â | Â | Â | 0.0001 |
 Alert | 37,254 | 99.6% | 16,394 | 96.8% | 53,648 |  |
 Altered | 156 | 0.4% | 538 | 3.2% | 694 |  |
Systolic blood pressure (mmHg) | 103.4 ± 16.8 |  | 126..4 ± 27.6 |  | 124.6 ± 43.9 | 0.0001 |
Diastolic blood pressure (mmHg) | 68.8 ± 11.0 |  | 75.5 ± 19.4 |  | 74.9 ± 30.1 | 0.109 |
Pulse rate (beats/min) | 86.0 ± 25.8 |  | 86.2 ± 19.8 |  | 84.4 ± 20.8 | 0.0001 |
Respiration rate (/min) | 19.3 ± 6.6 |  | 19.2 ± 8.4 |  | 19.4 ± 6.0 | 0.606 |
Body temperature (℃) | 36.1 ± 2.6 |  | 36.4 ± 3.4 |  | 36.4 ± 2.8 | 0.0001 |