Table 1.
Patient and Screening Mammogram Characteristics Stratified by Mammography Result Based on Radiologist's Assessment and Recommendations Captured by the BCSC
| Characteristic | All (N = 387,709) | Normal (N = 359,922) | Abnormal (N = 27,787) |
|---|---|---|---|
| N (%) | N (%) | N (%) | |
| Age | |||
| 66–74 | 226,167 (58.3) | 209,398 (58.2) | 16,769 (60.4) |
| 75–84 | 141,740 (36.6) | 132,006 (36.7) | 9,734 (35.0) |
| 85+ | 19,802 (5.1) | 18,518 (5.2) | 1,284 (4.6) |
| Race | |||
| White, non-Hispanic | 307,783 (79.4) | 285,220 (79.2) | 22,563 (81.2) |
| Black, non-Hispanic | 28,390 (7.3) | 26,522 (7.4) | 1,868 (6.7) |
| Asian/Pacific Islander | 12,014 (3.1) | 11,518 (3.2) | 496 (1.8) |
| American Indian/Alaskan Native | 1,591 (0.4) | 1,488 (0.4) | 103 (0.4) |
| Hispanic | 5,675 (1.5) | 5,308 (1.5) | 367 (1.3) |
| Other/mixed/unknown | 32,256 (8.3) | 29,866 (8.3) | 2,390 (8.6) |
| Year of mammogram | |||
| 1999 | 49,974 (12.9) | 46,691 (13.0) | 3,283 (11.8) |
| 2000 | 52,099 (13.4) | 48,597 (13.5) | 3,502 (12.6) |
| 2001 | 53,358 (13.8) | 49,575 (13.8) | 3,783 (13.6) |
| 2002 | 59,346 (15.3) | 54,960 (15.3) | 4,386 (15.8) |
| 2003 | 60,660 (15.7) | 56,137 (15.6) | 4,523 (16.3) |
| 2004 | 56,704 (14.6) | 52,559 (14.6) | 4,145 (14.9) |
| 2005 | 55,568 (14.3) | 51,403 (14.3) | 4,165 (15.0) |
| BI-RADS assessment of screening mammogram | |||
| 1 | 253,839 (65.5) | 253,839 (70.5) | – |
| 2 | 102,706 (26.5) | 102,706 (28.5) | – |
| 3 | 4,014 (1.0) | 3,377 (0.9) | 637 (2.3) |
| 0 | 257,22 (6.6) | – | 25,722 (92.6) |
| 4 | 1,261 (0.3) | – | 1,261 (4.5) |
| 5 | 167 (0.0) | – | 167 (0.6) |
| Facility profit status | |||
| Not for profit | 98,675 (25.4) | 91,722 (25.5) | 6,953 (25.0) |
| For profit | 218,208 (56.3) | 202,023 (56.1) | 16,185 (58.2) |
| Unknown | 70,826 (18.3) | 66,177 (18.4) | 4,649 (16.7) |
| Facility associated with academic medical center | |||
| No | 326,829 (84.3) | 304,305 (84.5) | 22,524 (81.1) |
| Yes | 34,697 (8.9) | 31,774 (8.8) | 2,923 (10.5) |
| Unknown | 26,183 (6.8) | 23,843 (6.6) | 2,340 (8.4) |
| Facility type | |||
| Hospital | 184,435 (47.6) | 171,645 (47.7) | 12,790 (46.0) |
| Specialty center | 136,178 (35.1) | 126,208 (35.1) | 9,970 (35.9) |
| Nonspecialty center | 35,652 (9.2) | 33,055 (9.2) | 2,597 (9.3) |
| Other/unknown | 31,444 (8.1) | 29,014 (8.1) | 2,430 (8.7) |
BCSC, Breast Cancer Surveillance Consortium; BI-RADS, Breast Imaging Reporting and Data System.