Table 1 Percentage of injured patients with the time of injury and the arrival time at the ED, stratified by the status of alcohol drinking within the six hours prior to the injury and type of injury
| Drink | N | Time | Statistic | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| alcohola | (519) | 8-12 | 12-16 | 16-20 | 20-24 | 00-04 | 04-08 | p-value | ||
| (Row %) | (Row %) | (Row %) | (Row %) | (Row %) | (Row %) | |||||
| Time of injury b | Yes | 101 | 6.7 | 8.9 | 9.6 | 44.4 | 25.2 | 5.2 | Chi 2 = 158.9 | |
| No | 418 | 19.6 | 20.5 | 32.4 | 12.5 | 4.3 | 10.7 | p<0.001*** | ||
| Time arriving at the EDb | Yes | 101 | 5.2 | 5.2 | 8.9 | 47.0 | 34.1 | 9.6 | Chi 2 = 143.3 | |
| No | 418 | 20.5 | 16.9 | 32.8 | 19.6 | 5.9 | 4.3 | p<0.001*** | ||
| Time arriving at the ED, by types of injury c | Unintentional | Yes | 87 | 8.1 | 5.8 | 5.8 | 27.6 | 40.2 | 12.6 | Chi 2 = 112.3 |
| No | 396 | 28.8 | 23.0 | 23.0 | 13.3 | 6.6 | 5.6 |
Fisher’s exact p<0.001*** | ||
| Intentional, | Yes | 2 | 0.0 | 0.0 | 0.0 | 0.0 | 50.0 | 50.0 | Chi 2 = 1.5 | |
| self-inflicted | No | 4 | 0.0 | 50.0 | 0.0 | 0.0 | 25.0 | 25.0 |
Fisher’s exact p=1.000 | |
| Intentional, | Yes | 16 | 0.0 | 12.5 | 6.3 | 6.3 | 68.8 | 6.3 | Chi 2 = 3.4 | |
| by someone else | No | 14 | 7.1 | 14.3 | 7.1 | 21.4 | 42.9 | 7.1 | Fisher’s exact | |
| p=0.742 | ||||||||||
| Traffic | Yes | 66 | 6.1 | 7.6 | 6.1 | 242 | 40.9 | 15.2 | Chi 2 = 46.7 | |
| accident | No | 149 | 28.9 | 20.1 | 18.1 | 13.4 | 10.1 | 9.4 | Fisher’s exact | |
| Time arriving at the ED, by mode of injury c | p<0.001*** | |||||||||
| Blunt force | Yes | 10 | 0.0 | 0.0 | 0.0 | 10.0 | 70.0 | 20.0 | Chi 2 = 16.2 | |
| injury | No | 27 | 22.2 | 22.2 | 18.5 | 14.8 | 11.1 | 11.1 | Fisher’s exact | |
| p=0.004** | ||||||||||
| Stab, cut, | Yes | 11 | 9.1 | 9.1 | 9.1 | 36.4 | 36.4 | 0.0 | Chi 2 = 21.9 | |
| bite | No | 131 | 32.1 | 26.0 | 25.2 | 9.2 | 6.1 | 1.5 | Fisher’s exact | |
| p<0.002** | ||||||||||
| Fall, trip | Yes | 11 | 18.2 | 0.0 | 0.0 | 27.3 | 45.5 | 9.1 | Chi 2 = 22.5 | |
| No | 78 | 26.9 | 19.2 | 29.5 | 14.1 | 5.1 | 5.1 | Fisher’s exact | ||
| p<0.001*** | ||||||||||
| Others | Yes | 7 | 0.0 | 14.3 | 14.3 | 14.3 | 57.1 | 0.0 | Chi 2 = 8.5 | |
| No | 29 | 10.3 | 34.5 | 13.8 | 27.6 | 10.3 | 3.5 | Fisher’s exact | ||
| p=0.182 | ||||||||||