Cohort baseline demographics and insurance
| BC-Plus (n=281) | Controls (n=557) | P value | |
| Age, mean (SD) | 56.3 (11.7) | 55.7 (11.8) | 0.5 |
| Race/ethnicity (%) | 0.98 | ||
| Black (non-Hispanic) | 66.5 | 66.1 | |
| White (non-Hispanic) | 25.6 | 26.2 | |
| Hispanic | 1.4 | 1.8 | |
| Other | 5.0 | 5.0 | |
| % Female | 59.8 | 57.5 | 0.81 |
| % Insurance | 0.001 | ||
| Medicare | 38.4 | 26.7 | |
| Medicaid | 43.8 | 23.5 | |
| Private | 11.0 | 37.0 | |
| Other | 4.3 | 9.9 |