Table 1.
Demographic characteristics by payer type.
| Characteristic | Commercial database (n =4109) | Medicaid database (n =2118) | Medicare database (n =11,370) | p-value |
|---|---|---|---|---|
| Age (years), M (SD) | 55.4 (7.9) | 61.3 (15.3) | 79.4 (7.8) | <0.001 |
| Gender, n (%) | <0.001 | |||
| Male | 2591 (63.1) | 852 (40.2) | 6144 (54.0) | |
| Female | 1518 (36.9) | 1266 (59.8) | 5226 (46.0) | |
| Insurance plan type, n (%) | <0.001 | |||
| Managed care | 604 (14.7) | 1480 (69.9) | 6590 (58.0) | |
| Fee-for-service | 3383 (82.3) | 637 (30.1) | 4654 (40.9) | |
| Other/unknown | 122 (3.0) | 1 (<0.1) | 126 (1.1) | |
| Health plan capitation, n (%) | <0.001 | |||
| Capitated | 809 (19.7) | 637 (30.1) | 1497 (13.2) | |
| Non-capitated | 3300 (80.3) | 1481 (69.9) | 9873 (86.8) |