Table 2 Characteristics of physicians and non-physician primary care personnel enrolled at the start of the intervention
| Characteristic* | Primary care physicians (n = 83) |
Non-physician personnel (n = 42) |
|---|---|---|
| Male, n (%) | 45 (54.2) | 6 (14.3) |
| Age at start of study, mean (SD), y | 46.5 (7.8) | 48.7 (8.7) |
| Race/ethnicity, n (%) | ||
| White | 35 (42.2) | 24 (57.1) |
| Black | 6 (7.2) | 12 (28.6) |
| Asian | 34 (41.0) | 3 (7.1) |
| Hispanic | 4 (4.8) | 1 (2.4) |
| Other† | 3 (3.6) | 2 (4.8) |
| Unknown‡ | 1 (1.2) | 0 |
| Board certified, n (%) | 76 (91.6) | N/A |
| Primary specialty internal medicine, n (%) | 71 (85.5) | N/A |
| Trained in a subspecialty/secondary specialty, n (%) | 18 (21.7) | N/A |
| Years practicing since residency completion, mean (SD) | 12.6 (7.8) | N/A |
| Proportion of professional time spent delivering patient care, mean (SD) | 0.89 (0.13) | 0.86 (0.20) |
| Role in patient care delivery, n (%) | N/A | |
| Licensed practical nurse | N/A | 10 (23.8) |
| Medical support assistant | N/A | 3 (7.1) |
| Pharmacist | N/A | 2 (4.8) |
| Physician assistant or nurse practitioner | N/A | 5 (11.9) |
| Registered nurse | N/A | 16 (38.1) |
| Registered nurse case manager or care coordinator | N/A | 6 (14.3) |