Table 1.
Characteristics of Women Undergoing Digital Screening Mammography with and without CAD
| CAD | No CAD | Overall | ||||
|---|---|---|---|---|---|---|
|
| ||||||
| N | (%) | N | (%) | N | (%) | |
|
|
||||||
| Age | ||||||
| 40–49 | 147,486 | (29.8) | 36,503 | (28.1) | 183,989 | (29.4) |
| 50–59 | 158,780 | (32.0) | 44,766 | (34.5) | 203,546 | (32.5) |
| 60–69 | 108,329 | (21.9) | 29,914 | (23.0) | 138,243 | (22.1) |
| 70–79 | 60,545 | (12.2) | 14,656 | (11.3) | 75,201 | (12.0) |
| 80–89 | 20,678 | (4.2) | 3968 | (3.1) | 24,646 | (3.9) |
| Menopausal status | ||||||
| Premenopausal | 120,559 | (30.3) | 34,688 | (32.9) | 155,247 | (30.9) |
| Postmenopausal, currently on hormone therapy | 33,764 | (8.5) | 6338 | (6.0) | 40,102 | (8.0) |
| Postmenopausal, not currently on hormone therapy | 243,105 | (61.2) | 64,335 | (61.1) | 307,440 | (61.2) |
| Missing | 98,390 | (19.8) | 24,446 | (18.8) | 122,836 | (19.6) |
| Race/ethnicity | ||||||
| White, non-Hispanic | 410,385 | (82.8) | 63,306 | (48.8) | 473,691 | (75.7) |
| Black, non-Hispanic | 28,533 | (5.8) | 7985 | (6.2) | 36,518 | (5.8) |
| Asian/Pacific Islander | 35,081 | (7.1) | 43,991 | (33.9) | 79,072 | (12.6) |
| American Indian or Alaska Native | 1194 | (0.2) | 590 | (0.5) | 1784 | (0.3) |
| Other | 7228 | (1.5) | 2497 | (1.9) | 9725 | (1.6) |
| Hispanic | 13,397 | (2.7) | 11,438 | (8.8) | 24,835 | (4.0) |
| First-degree family history of breast cancer | ||||||
| No | 412,071 | (83.6) | 110,544 | (87.4) | 522,615 | (84.4) |
| Yes | 80,800 | (16.4) | 15,902 | (12.6) | 96,702 | (15.6) |
| Missing | 2947 | (0.6) | 3361 | (2.6) | 6308 | (1.0) |
| Time since last mammogram | ||||||
| No prior mammogram | 12,518 | (2.5) | 6750 | (5.2) | 19,268 | (3.1) |
| 1 year | 361,842 | (73.0) | 74,687 | (57.5) | 436,529 | (69.8) |
| 2 years | 68,905 | (13.9) | 31,131 | (24.0) | 100,036 | (16.0) |
| 3 or more years | 52,553 | (10.6) | 17,239 | (13.3) | 69,792 | (11.2) |
| BI-RADS density | ||||||
| Almost entirely fat | 52,875 | (12.4) | 8833 | (11.4) | 61,708 | (12.2) |
| Scattered fibroglandular densities | 175,579 | (41.1) | 33,473 | (43.1) | 209,052 | (41.4) |
| Heterogeneously dense | 167,506 | (39.2) | 30,104 | (38.7) | 197,610 | (39.1) |
| Extremely dense | 31,252 | (7.3) | 5305 | (6.8) | 36,557 | (7.2) |
| Missing | 68,606 | (13.8) | 52,092 | (40.1) | 120,698 | (19.3) |
CAD, computer-aided detection; BI-RADS, Breast Imaging Reporting and Data System