Patient and Practice Characteristics of Study Sample
| Characteristic | Value |
|---|---|
| Patients (N = 568) | |
| Age, mean (SD), y | 64.4 (4.3) |
| Sex, male, mean (SD), % | 39.7 (11.8) |
| Race, nonwhite, mean (SD), % | 31.3 (31.9) |
| Insurance, commercial, mean (SD), % | 51.6 (24.3) |
| Education level, high school or less, mean (SD), % | 36.2 (17.9) |
| Practices (N = 24) | |
| Type of practice, n (%) | |
| Family medicine | 17 (70.8) |
| Internal medicine | 5 (20.8) |
| Family and internal medicine | 2 (8.3) |
| Years in business, n (%) | |
| 0–5 | 7 (29.2) |
| 6–10 | 6 (25.0) |
| 11–15 | 4 (16.7) |
| 16–20 | 4 (16.7) |
| >20 | 3 (12.5) |
| Clinicians per practice, n (%) | |
| 1 | 3 (12.5) |
| 2–5 | 14 (58.3) |
| ≥6 | 7 (29.2) |
| Practice ownership, n (%) | |
| Physician owned | 17 (73.9) |
| Hospital or university | 5 (21.7) |
| Public sponsor | 1 (4.4) |