Appendix Table 3.
Expected Counts for 1000 Women in the U.S. Mammography Screening Population Aged 50-59 y
| Variable | Reference Diagnosis, n |
Total, n | ||||
|---|---|---|---|---|---|---|
| Benign Nonproliferative | Benign Proliferative | Atypia | DCIS | Invasive Breast Cancer | ||
| Pathologist interpretation | ||||||
| Benign nonproliferative | 381.8 | 10.8 | 1.5 | 2.0 | 0.5 | - |
| Benign proliferative | 120.2 | 98.2 | 12.0 | 2.0 | 0.8 | - |
| Atypia | 8.3 | 18.2 | 18.6 | 4.3 | 0.0 | - |
| DCIS | 3.1 | 4.0 | 6.7 | 51.3 | 8.8 | - |
| Invasive breast cancer | 2.1 | 1.7 | 0.2 | 1.6 | 241.2 | - |
| Total women, n* | 516 | 133 | 39 | 61 | 251 | 1000 |
DCIS = ductal carcinoma in situ.
*
Expected totals according to population prevalence estimates (6).