Table 2.
Summary of Tests of Significance for Gender (χ2), Age (χ2), and an Interaction of Age and Gender on Various Crash Risk Factors (N.S.-Not Significant)
| Variable | Gender | Age within males | Age within females | Age-gender interaction |
|---|---|---|---|---|
| Highway vs. local roads | p<.001 | p<.001 | p<.001 | p<.01 |
| Urban vs. rural roads | p<.01 | p<.001 | p<.001 | p<.01 |
| Dry vs. other road surface | p<.05 | N.S. | N.S. | N.S. |
| Clear vs. other weather | p<.001 | N.S. | N.S. | N.S. |
| Crash type | p<.001 | p<.05 | p<.05 | N.S. |
| Ejection | p<.01 | N.S. | N.S. | N.S. |
| Rollover | p<.05 | p<.001 | p<.001 | N.S. |
| Time of day | p<.001 | p<.001 | p<.001 | N.S. |
| Weekend | p<.001 | p<.01 | N.S. | N.S. |
| BAC ≥ 0.08% | p<.001 | p<.001 | p<.001 | N.S. |
| Lane excursions | p<.001 | p<.01 | p<.001 | N.S. |
| Cell phone presence or use | p<.001 | N.S. | N.S. | N.S. |
| Driving recklessly | p<.001 | N.S. | N.S. | N.S. |
| Drowsy driving | p<.05 | N.S. | N.S. | N.S. |
| Ignoring traffic signals | N.S. | N.S. | N.S. | N.S. |
| Passenger Presence | N.S. | p<.001 | p<.001 | N.S. |
| Speeding | p<.001 | N.S. | p<.001 | p<.01 |