Table 1 Clinicopathologic features of the DCIS, mIDC, and IDC lesions in the study cohort
|  | DCIS (n = 112) | mIDC (n = 50) | IDC (n = 44) | P value |
|---|---|---|---|---|
Age, years | 48.6 ± 10.3 | 50.3 ± 11.5 | 52.1 ± 10.8 | 0.181 |
Biopsy method | Â | Â | Â | 0.028 |
 SVAB | 28 (25.0) | 6 (12.0) | 4 (9.1) |  |
 US-CNB | 84 (75.0) | 44 (88.0) | 40 (90.9) |  |
Surgery type |  |  |  | < 0.001 |
 Breast conserving | 80 (71.4) | 29 (58.0) | 15 (34.1) |  |
 Mastectomy | 32 (28.6) | 21 (42.0) | 29 (65.9) |  |
Nuclear grade | Â | Â | Â | 0.001 |
 1 | 15 (13.4) | 4 (8.0) | 1 (2.3) |  |
 2 | 88 (78.6) | 30 (60.0) | 29 (65.9) |  |
 3 | 9 (8.0) | 16 (32.0) | 14 (31.8) |  |
Necrosis | Â | Â | Â | 0.073 |
 Present | 54 (47.4) | 33 (66.0) | 27 (61.4) |  |
 Absent | 58 (51.8) | 17 (34.0) | 17 (38.6) |  |
Pathologic tumor size (cm) | 2.0 ± 1.6 | 3.7 ± 2.3 | 4.5 ± 2.4 | < 0.001 |
Estrogen receptor |  |  |  | < 0.001 |
 Positive | 103 (92.0) | 26 (52.0) | 34 (77.3) |  |
 Negative | 9 (8.0) | 24 (48.0) | 10 (22.7) |  |
Progesterone receptor |  |  |  | < 0.001 |
 Positive | 95 (84.8) | 21 (42.0) | 26 (59.1) |  |
 Negative | 17 (15.2) | 29 (58.0) | 18 (40.9) |  |
HER2 |  |  |  | < 0.001 |
 Positive | 20 (17.9) | 30 (60.0) | 16 (36.4) |  |
 Negative | 92 (82.1) | 20 (40.0) | 28 (63.6) |  |
Ki-67 |  |  |  | < 0.001 |
 High (≥20%) | 24 (21.4) | 24 (48.0) | 24 (54.5) |  |
 Low (< 20%) | 88 (78.6) | 26 (52.0) | 20 (45.5) |  |