Table 1.
Characteristics of physicians by specialist category
| Variable | All | Family medicine | Internal medicine specialist | Infectious disease specialist | p-value | |
|---|---|---|---|---|---|---|
| N = 3,824 | N = 3,699 | N = 70 | N = 55 | |||
| Age (years) | Mean ± SD | 49.7 ± 11.2 | 49.8 ± 11.1 | 47.0 ± 14.1 | 47.4 ± 9.2 | 0.033 |
| Age category (years) | <40 | 1,711 (44.7%) | 732 (19.8%) | 29 (41.4%) | 12 (21.8%) | <0.001 |
| 40-54 | 986 (25.8%) | 1,660 (44.9%) | 19 (27.1%) | 32 (58.2%) | ||
| 55-64 | 773 (20.2%) | 966 (26.1%) | 12 (17.1%) | 11 (20%)* | ||
| >64 | 347 (9.1%) | 334 (9.0%) | 10 (14.3%) | |||
| Sex | F | 1,165 (30.5%) | 1,138 (30.8%) | 14 (20.0%) | 13 (23.6%) | 0.276 |
| Year of graduation | Missing | 320 (8.4%) | 307 (8.3%) | 7 (10.0%) | 6 (10.9%) | <0.001 |
| >2000s | 363 (9.5%) | 471 (12.7%) | 18 (25.7%) | 23 (41.8%)* | ||
| 1990s | 829 (21.7%) | 765 (20.7%) | 18 (25.7%) | |||
| 1980s | 1,017 (26.6%) | 992 (26.8%) | 10 (14.3%) | 15 (27.3%) | ||
| 1970s | 801 (20.9%) | 815 (22.0%) | 6 (8.6%) | 11 (20.0%)* | ||
| Pre-1970 | 494 (12.9%) | 349 (9.4%) | 11 (15.7%) | |||
| Rural status of physician | Missing | 114 (3.0%) | 112 (3.0%) | <=5 | 0 | 0.002 |
| Major urban | 3,092 (80.9%) | 2,972 (80.3%) | 65 (92.9%) | 55 (100.0%) | ||
| Non-major urban | 451 (11.8%) | 448 (12.1%) | <=5 | 0 | ||
| Rural | 167 (4.4%) | 167 (4.5%) | <=5 | 0 | ||
| Caseload volume | <=5 | 2,870 (75.1%) | 2,841 (76.8%) | 25 (35.7%) | 20 (36.4%)* | |
| 6-49 | 830 (21.7%) | 779 (21.1%) | 35 (50.0%) | <0.001 | ||
| > = 50 | 124 (3.2%) | 79 (2.1%) | 10 (14.3%) | 35 (63.6%) |
*Some categories are collapsed to avoid reporting cell sizes < =5.