Table 3.
Past breast surgical or biopsy history of the three patient populations: DCIS, DCIS-Mi, and IDC
| Parameter | DCIS | DCIS-Mi | IDC | P value |
|---|---|---|---|---|
| Total number |
73 |
72 |
721 |
|
|
Past breast surgical or biopsy history |
19 (26.0) |
20 (27.8) |
176 (24.4) |
0.795 |
| Benign |
|
|
|
|
| Fibrosis |
2 (10.5) |
4 (20) |
29 (16.5) |
0.700 |
| Cysts |
3 (15.8) |
2 (10) |
23 (13.1) |
0.864 |
| Apocrine metaplasia |
1 (5.3) |
1 (5.0) |
5 (2.8) |
0.789 |
| Fibroadenoma |
1 (5.3) |
1 (5.0) |
6 (3.4) |
0.885 |
| Lobular hyperplasia without atypia |
8 (42.1) |
6 (30.0) |
64 (37.2) |
0.728 |
| Sclerosing adenosis |
0 (0) |
0 (0) |
1 (0.5) |
|
| Papilloma |
1 (5.3) |
2 (10.0) |
9 (5.2) |
0.724 |
| Atypical ductal hyperplasia |
1 (5.3) |
2 (10.0) |
10 (5.8) |
0.780 |
| Atypical lobular hyperplasia |
3 (15.8) |
2 (10.0) |
28 (16.3) |
0.743 |
| Malignant |
|
|
|
|
| IDC |
|
|
|
|
| Invasive lobular carcinoma |
0 |
0 |
0 |
|
| Invasive mucinous carcinoma |
0 |
0 |
0 |
|
| Invasive tubular carcinoma |
0 |
0 |
0 |
|
| DCIS | 0 | 0 | 1 |
DCIS Ductal carcinoma in situ; IDC Infiltrating ductal carcinoma; Mi Microinvasion.