| Age, mean (SD) | 65.0 (8.7) | 65.6 (8.6) | <.001 |
| Gender, No. (%) | | | <.001 |
| Female | 6,242 (56.0) | 2,056 (63.1) | |
| Male | 4,909 (44.0) | 1,204 (36.9) | |
| Race, No. (%) | | | <.001 |
| White | 9,548 (85.6) | 2,786 (85.5) | |
| Black | 799 (7.2) | 271 (8.3) | |
| Other | 689 (6.2) | 112 (3.4) | |
| Unknown | 115 (1.0) | 91 (2.8) | |
| Ethnicity, No. (%) | | | <.001 |
| Hispanic | 199 (1.8) | 16 (0.5) | |
| Non-Hispanic | 10,413 (93.4) | 2,931 (89.9) | |
| Unknown | 539 (4.8) | 313 (9.6) | |
| Marital status, No. (%) | | | <.001 |
| Married/significant other | 7,200 (64.6) | 1,951 (59.9) | |
| Divorced/separated | 496 (4.5) | 399 (12.2) | |
| Other | 3,092 (27.7) | 905 (27.8) | |
| Unknown | 363 (3.3) | 5 (0.2) | |
| Smoking status, No. (%) | | | <.001 |
| Yes | 1,189 (10.7) | 442 (13.6) | |
| Quit | 4,108 (36.8) | 1,313 (40.3) | |
| Never | 5,849 (52.5) | 1,484 (45.5) | |
| Unknown | 5 (0.04) | 21 (0.6) | |
| Hypertension, No. (%) | 4,562 (40.9) | 1,247 (38.3) | .007 |
| Diabetes, No. (%) | 1,819 (16.3) | 489 (15.0) | .084 |
| Alcohol abuse, No. (%) | 175 (1.6) | 98 (3.0) | <.001 |
| Insurance, No. (%) | | | <.001 |
| Private | 6,632 (59.5) | 1,178 (36.1) | |
| Medicare/federal | 3,905 (35.0) | 1,066 (32.7) | |
| Medicaid | 513 (4.6) | 190 (5.8) | |
| Uninsured | 101 (0.9) | 11 (0.3) | |
| Unknown | 0 (0.0) | 815 (25.0) | |