Participant Characteristics by Reported Discussions with Family Members or Physicians (n = 2990)
| Characteristic | n | With Family (n = 426) | With Physician (n = 165) | ||
|---|---|---|---|---|---|
| % | 95% CI | % | 95% CI | ||
| Total | 2990 | 14.2 | 13.0 to 15.5 | 5.5 | 4.7 to 6.3 |
| Age (years)* | |||||
| 65 to 69 | 1243 | 13.8 | 11.9 to 15.8 | 5.6 | 4.3 to 6.8 |
| 70 to 74 | 1037 | 12.5 | 10.5 to 14.6 | 5.5 | 4.1 to 6.9 |
| 75 to 79 | 710 | 17.5 | 14.7 to 20.3 | 5.5 | 3.8 to 7.2 |
| Gender* | |||||
| Male | 1404 | 15.9 | 14.0 to 17.8 | 5.6 | 4.4 to 6.8 |
| Female | 1586 | 12.8 | 11.2 to 14.4 | 5.4 | 4.3 to 6.5 |
| Race | |||||
| White | 2557 | 14.6 | 13.2 to 16 | 5.5 | 4.6 to 6.4 |
| Black | 212 | 11.3 | 7.1 to 15.6 | 5.7 | 2.5 to 8.8 |
| Asian | 64 | 14.1 | 5.5 to 22.6 | 7.8 | 1.2 to 14.4 |
| Other | 157 | 12.7 | 7.5 to 18.0 | 4.5 | 1.2 to 7.7 |
| Hispanic | |||||
| Yes | 83 | 13.3 | 6.0 to 20.6 | 1.2 | 0.0 to 3.6 |
| No | 2794 | 14.5 | 13.2 to 15.8 | 5.8 | 4.9 to 6.6 |
| Educationb | |||||
| ≤Some college | 1062 | 12.0 | 10.0 to 13.9 | 5.2 | 3.8 to 6.5 |
| Bachelors | 698 | 12.0 | 9.6 to 14.4 | 4.3 | 2.8 to 5.8 |
| ≥Masters | 1221 | 17.5 | 15.4 to 19.7 | 6.6 | 5.2 to 7.9 |
| Income | |||||
| ≤$49,999 | 775 | 12.6 | 10.3 to 15 | 6.2 | 4.5 to 7.9 |
| $50,000 to $79,999 | 719 | 14.3 | 11.8 to 16.9 | 7.0 | 5.1 to 8.8 |
| $80,000 to $99,999 | 431 | 14.8 | 11.5 to 18.2 | 5.8 | 3.6 to 8.0 |
| ≥$100,000 | 959 | 16.2 | 13.8 to 18.5 | 4.1 | 2.8 to 5.3 |
| Paid employment | |||||
| Yes | 904 | 13.4 | 11.3 to 15.7 | 4.2 | 2.9 to 5.5 |
| No | 2084 | 14.5 | 13.0 to 16.1 | 6.1 | 5.1 to 7.1 |
| Marital status* | |||||
| Married/living with partner | 1974 | 15.3 | 13.7 to 16.9 | 5.5 | 4.5 to 6.5 |
| Separated/divorced | 608 | 11.3 | 8.8 to 13.9 | 6.1 | 4.2 to 8.0 |
| Widowed | 378 | 13.0 | 9.6 to 16.4 | 4.5 | 2.4 to 6.6 |
| Traffic event¶ | |||||
| Yes | 703 | 16.1 | 13.4 to 18.8 | 5.1 | 3.5 to 6.8 |
| No | 2286 | 13.7 | 12.3 to 15.1 | 5.6 | 4.7 to 6.5 |
| Driving reduction†,§ | |||||
| No reduction | 2442 | 13.4 | 12.0 to 14.7 | 5.0 | 4.1 to 5.9 |
| For self-regulation | 173 | 26.6 | 20.0 to 33.2 | 13.9 | 8.7 to 19.0 |
| For other reason(s) | 355 | 13.5 | 10.0 to 17.1 | 5.4 | 3.0 to 7.7 |
| Other people… | |||||
| …depend on you for rides | |||||
| Yes | 762 | 15.9 | 13.3 to 18.5 | 5.2 | 3.7 to 6.8 |
| No | 2222 | 13.7 | 12.3 to 15.1 | 5.6 | 4.6 to 6.5 |
| …can give you rides | |||||
| Yes | 2826 | 14.2 | 12.9 to 15.5 | 5.7 | 4.9 to 6.6 |
| No | 148 | 13.5 | 8.0 to 19.0 | 2.0 | 0 to 4.3 |
| Driving scales‖ | Mean (SD) | Mean (SD) |
|---|---|---|
| Self-rated average ability†,§ | 5.65 (0.73) | 5.67 (0.75) |
| Errors† | 1.54 (0.34) | 1.47 (0.35) |
| Violations† | 1.7 (0.41) | 1.61 (0.37) |
| Strategic Self Regulation†,§ | 2.96 (2.42) | 3.22 (2.56) |
| Tactical Self Regulation†,‡ | 3.18 (1.7) | 3.26 (1.68) |
↵Family discussion prevalence differs by characteristic at P < .05* or P < .001† via χ2 tests; physician discussion prevalence differs at P < .05‡ or P < .001§ via χ2 tests or Fisher's exact tests.
↵¶ “Traffic event” was ≥1 motor vehicle crash, police stop, or traffic ticket within the past year.
↵‖ See Methods for full description of scales.
CI, confidential interval; SD, standard deviation.