Table 1.
Injury characteristics and association with positive alcohol use prior to arriving at the ED
| Total (N = 516) | BAC Positive (N = 156) | BAC Negative (N = 360) | P Value | AOR | CI 95% | P value | |
|---|---|---|---|---|---|---|---|
| Sociodemographics | |||||||
| Age (years), Mean (SD) | 34.4 (13.3) | 35.2 (11.2) | 33.9 (14.1) | 0.31 | 1.01 | (1.00–1.03) | 0.152 |
| Male, N (%) | 394 (76.4) | 135 (86.5) | 259 (72.0) | < 0.001 * | 2.29 | (1.31–4.15) | 0.004 |
| Education (years), Mean (SD) | 9.6 (9.5) | 10.3 (10.1) | 8.7 (7.9) | 0.123 | 0.98 | (0.94–1.01) | 0.271 |
| Employed, N (%) | 416 (80.6) | 141 (90.4) | 274 (76.4) | < 0.001 * | 0.46 | (0.24–0.85) | 0.016 |
| Injury characteristics | |||||||
| Time since injury (hours), Mean (SD) | 2.6 (1.4) | 2.8 (1.5) | 2.5 (1.4) | 0.034 * | 1.09 | (0.94–1.27) | 0.244 |
| KTS, Mean (SD) | 14.3 (0.9) | 14.2 (0.9) | 14.3 (0.9) | 0.395 | 1.03 | (0.74–1.44) | 0.841 |
| RTS, Mean (SD) | 7.7 (0.5) | 7.7 (0.4) | 7.7 (0.6) | 0.831 | 1.12 | (0.63–2.23) | 0.719 |
| Unintentional Injury | 440 (85.3) | 122 (78.2) | 318 (88.3) | 0.003 * | 3.33 | (0.91–14.0) | 0.081 |
| Type of injury | |||||||
| Fracture | 185 (35.8) | 61 (39.1) | 124 (34.4) | 0.311 | 1.45 | (0.89–2.37) | 0.138 |
| Dislocation | 80 (15.5) | 16 (10.3) | 64 (17.7) | 0.050 * | 0.8 | (0.40–1.52) | 0.501 |
| Open Wound | 197 (38.2) | 79 (50.6) | 118 (32.8) | 0.030 * | 2.04 | (1.29–3.26) | 0.003 |
| Bruise | 111 (22.5) | 28 (17.9) | 83 (23.1) | 0.195 | 0.74 | (0.43–1.27) | 0.282 |
| Concussion | 149 (28.9) | 46 (29.5) | 103 (28.6) | 0.84 | 1.28 | (0.77–2.10) | 0.341 |
| Organ Injury | 56 (10.9) | 14 (9.0) | 42 (11.7) | 0.366 | 0.94 | (0.43–1.96) | 0.87 |
| Mechanism of Injury | |||||||
| RTI | 375 (72.7) | 109 (69.9) | 266 (73.9) | 0.245 | Ref | ||
| Violence | 88 (17.0) | 33 (21.1) | 55 (15.3) | 0.26 | (0.05–1.10) | 0.08 | |
| Fall/Trip | 53 (10.3) | 14 (9.0) | 39 (10.8) | 0.67 | (0.25–1.69) | 0.403 | |
| Location of Injury | |||||||
| Outdoor public place | 399 (77.3) | 118 (75.6) | 281 (78.1) | < 0.001 | Ref | ||
| Drinking place | 17 (3.3) | 13 (8.3) | 4 (1.1) | 9.27 | (2.38–44.9) | 0.003 | |
| Home | 45 (8.7) | 17 (10.9) | 28 (7.8) | 1.88 | (0.72–4.97) | 0.2 | |
| Work place | 41 (8.0) | 4 (2.6) | 37 (10.3) | 0.26 | (0.07–0.81) | 0.031 | |
| Other | 14 (2.7) | 4 (2.6) | 10 (2.8) | 1.18 | (0.29–4.17) | 0.802 | |
p-value is a comparison between BAC positive and BAC negative
VRU Vulnerable road user, RTI Road traffic injury, BAC Breathlizer Alcohol Positive
*Significant at P < 0.05
Italics indicate p < 0.05