Table 2.
Diagnostic mammograms and ipsilateral invasive procedures after index DCIS excision in 2948 women over 10 years of follow-up*
| Treatment | No. (%) |
||||||
| Diagnostic mammograms | Any ipsilateral invasive procedures | Excisional biopsy | Core biopsy | FNA | Mastectomy | Other/Unknown | |
| All women (N = 2948) | |||||||
| Patients† | 907 (30.8) | 1813 (61.5) | 1641 (55.7) | 175 (5.9) | 70 (2.4) | 34 (1.2) | 59 (2.0) |
| Events‡ | 1422 (100) | 2305 (100) | 1936 (84.0) | 193 (8.4) | 82 (3.6) | 34 (1.5) | 60 (2.6) |
| BCS only (N = 1247) | |||||||
| Patients | 337 (27.0) | 760 (60.9) | 671 (53.8) | 90 (7.2) | 37 (3.0) | 23 (1.8) | 21 (1.7) |
| Events | 527 (100) | 996 (100) | 807 (81.0) | 101 (10.1) | 43 (4.3) | 23 (2.3) | 22 (2.2) |
| BCS with radiation (N = 1243) | |||||||
| Patients | 434 (34.9) | 804 (64.7) | 739 (59.5) | 66 (5.3) | 29 (2.3) | 8 (0.6) | 27 (2.2) |
| Events | 679 (100) | 1007 (100) | 864 (85.8) | 73 (7.2) | 35 (3.5) | 8 (0.8) | 27 (2.7) |
| BCS with XRT + TAM (N = 328) | |||||||
| Patients | 107 (32.6) | 185 (56.4) | 174 (53.0) | 12 (3.7) | 4 (1.2) | 1 (0.3) | 6 (1.8) |
| Events | 167 (100) | 226 (100) | 203 (89.8) | 12 (5.3) | 4 (1.8) | 1 (0.4) | 6 (2.7) |
| BCS with TAM (N = 130) | |||||||
| Patients | 29 (22.3) | 64 (49.2) | 57 (43.8) | 7 (5.4) | 0 (0) | 2 (1.5) | 5 (3.8) |
| Events | 49 (100) | 76 (100) | 62 (81.6) | 7 (9.2) | 0 (0) | 2 (2.6) | 5 (6.6) |
*
BCS = breast-conserving surgery; FNA = fine needle aspiration; TAM = adjuvant tamoxifen; XRT = adjuvant radiation treatment.
†
Percent calculated from total number of women in cohort and in treatment group.
‡
Percent calculated from total number of events for entire cohort and for each treatment group.