Table 1.
Participant characteristics by reported discussions with family members or physicians (n=2990)
| With Family (n=426) |
With Physician (n=165) |
|||||
|---|---|---|---|---|---|---|
| Characteristic | n | % | 95% CI | % | 95% CI | |
| Total | 2990 | 14.2 | 13.0–15.5 | 5.5 | 4.7–6.3 | |
| Age (years)a | 65–69 | 1243 | 13.8 | 11.9–15.8 | 5.6 | 4.3–6.8 |
| 70–74 | 1037 | 12.5 | 10.5–14.6 | 5.5 | 4.1–6.9 | |
| 75–79 | 710 | 17.5 | 14.7–20.3 | 5.5 | 3.8–7.2 | |
| Gendera | Male | 1404 | 15.9 | 14.0–17.8 | 5.6 | 4.4–6.8 |
| Female | 1586 | 12.8 | 11.2–14.4 | 5.4 | 4.3–6.5 | |
| Race | White | 2557 | 14.6 | 13.2–16 | 5.5 | 4.6–6.4 |
| Black | 212 | 11.3 | 7.1–15.6 | 5.7 | 2.5–8.8 | |
| Asian | 64 | 14.1 | 5.5–22.6 | 7.8 | 1.2–14.4 | |
| Other | 157 | 12.7 | 7.5–18.0 | 4.5 | 1.2–7.7 | |
| Hispanic | Yes | 83 | 13.3 | 6.0–20.6 | 1.2 | 0.0–3.6 |
| No | 2794 | 14.5 | 13.2–15.8 | 5.8 | 4.9–6.6 | |
| Educationb | ≤Some College | 1062 | 12.0 | 10.0–13.9 | 5.2 | 3.8–6.5 |
| Bachelors | 698 | 12.0 | 9.6–14.4 | 4.3 | 2.8–5.8 | |
| ≥Masters | 1221 | 17.5 | 15.4–19.7 | 6.6 | 5.2–7.9 | |
| Income | ≤$49,999 | 775 | 12.6 | 10.3–15 | 6.2 | 4.5–7.9 |
| $50,000–$79,999 | 719 | 14.3 | 11.8–16.9 | 7.0 | 5.1–8.8 | |
| $80,000–$99,999 | 431 | 14.8 | 11.5–18.2 | 5.8 | 3.6–8.0 | |
| ≥$100,000 | 959 | 16.2 | 13.8–18.5 | 4.1 | 2.8–5.3 | |
| Paid employment | Yes | 904 | 13.4 | 11.3–15.7 | 4.2 | 2.9–5.5 |
| No | 2084 | 14.5 | 13.0–16.1 | 6.1 | 5.1–7.1 | |
| Marital statusa | Married/Living with Partner | 1974 | 15.3 | 13.7–16.9 | 5.5 | 4.5–6.5 |
| Separated/Divorced | 608 | 11.3 | 8.8–13.9 | 6.1 | 4.2–8.0 | |
| Widowed | 378 | 13.0 | 9.6–16.4 | 4.5 | 2.4–6.6 | |
| Traffic evente | Yes | 703 | 16.1 | 13.4–18.8 | 5.1 | 3.5–6.8 |
| No | 2286 | 13.7 | 12.3–15.1 | 5.6 | 4.7–6.5 | |
| Driving reductionb,d | No reduction | 2442 | 13.4 | 12.0–14.7 | 5.0 | 4.1–5.9 |
| For self-regulation | 173 | 26.6 | 20.0–33.2 | 13.9 | 8.7–19.0 | |
| For other reason(s) | 355 | 13.5 | 10.0–17.1 | 5.4 | 3.0–7.7 | |
| Other people… | ||||||
| …depend on you for rides | Yes | 762 | 15.9 | 13.3–18.5 | 5.2 | 3.7–6.8 |
| No | 2222 | 13.7 | 12.3–15.1 | 5.6 | 4.6–6.5 | |
| …can give you rides | Yes | 2826 | 14.2 | 12.9–15.5 | 5.7 | 4.9–6.6 |
| No | 148 | 13.5 | 8.0–19.0 | 2.0 | 0–4.3 | |
| Driving scalesf | Mean (SD) | Mean (SD) | ||||
| Self-rated average abilityb,d | 5.65 (0.73) | 5.67 (0.75) | ||||
| Errorsb | 1.54 (0.34) | 1.47 (0.35) | ||||
| Violationsb | 1.7 (0.41) | 1.61 (0.37) | ||||
| Strategic Self Regulationb,d | 2.96 (2.42) | 3.22 (2.56) | ||||
| Tactical Self Regulationb,c | 3.18 (1.7) | 3.26 (1.68) | ||||
Family discussion prevalence differs by characteristic at p<0.05a or p<0.001b via Chi Square tests; Physician discussion prevalence differs at p<0.05c or p<0.001d via Chi Square tests or Fisher’s exact tests
e
“Traffic event” was ≥1 motor vehicle crash, police stop, or traffic ticket within the past year
f
See Methods for full description of scales