Table 1. Comparison of risk factors for alcohol endorsers versus non-endorsers.
*: Indicates statistically significant relationship based on chi-squared critical value for 1 degree of freedom at 95th percentile (χ2crit = 3.841).
**: Indicates statistically significant relationship at the 95th percentile (p ≤ 0.05).
χ2 = chi-squared statistic; df = degrees of freedom
| Alcohol endorsers (n = 39) | Alcohol non-endorsers (n = 253) | χ2 tatistic (df = 1) | P-value | Correlation coefficient | |
| Admission rate | 30.8% (n = 12) | 31.6% (n = 80) | 0.011 | 0.915 | -0.006 |
| Altered mental status rate | 17.9% (n = 7) | 2.8% (n = 7) | 17.063* | <0.001** | 0.242 |
| Emergent acuity rate | 38.5% (n = 15) | 15.8% (n = 40) | 11.341* | <0.001** | 0.197 |
| EMS transport rate | 61.5% (n = 24) | 37.5% (n = 95) | 7.771* | 0.05** | 0.163 |
| Head injury rate | 71.8% (n = 28) | 36.0% (n = 91) | 17.963* | <0.001** | 0.248 |
| Helmet use rate | 0.0% (n = 0) | 2.4% (n = 6) | 0.944 | 0.331 | -0.057 |