Table 3.
Distribution of clinicopathologic variables (total patients = 327).
| Variable | Number of patients (%) |
|---|---|
| Tumor size | |
| T1mi | 5 (1.5%) |
| T1a | 18 (5.5%) |
| T1b | 51 (15.6%) |
| T1c | 139 (42.5%) |
| T2 | 103 (31.5%) |
| T3 | 11 (3.4%) |
| Tumor histologic type | |
| Invasive ductal carcinoma | 295 (90.2%) |
| Invasive lobular carcinoma | 24 (7.3%) |
| Other | 4 (1.2%) |
| Multifocal | |
| Yes | 38 (11.6%) |
| No | 289 (88.4%) |
| Lymphovascular invasion | |
| Yes | 44 (13.5%) |
| No | 283 (86.5%) |
| Lymph node stage | |
| N0 | 213 (65.1%) |
| N1mi | 15 (4.6%) |
| N1a | 65 (19.9%) |
| N2a | 9 (2.8%) |
| N3a | 5 (1.5%) |
| Unknown | 20 (6.1%) |
| Estrogen receptor status | |
| Positive | 266 (81.3%) |
| Negative | 30 (9.2%) |
| Unknown | 31 (9.5%) |
| Progesterone receptor status | |
| Positive | 225 (68.8%) |
| Negative | 71 (21.7%) |
| Unknown | 31 (9.5%) |
| HER2 status | |
| Negative | 227 (69.4%) |
| Positive | 18 (5.5%) |
| Equivocal | 13 (4%) |
| Unknown | 28 (8.6%) |
| Patient age > 50 years | |
| Yes | 246 (75.2%) |
| No | 79 (24.2%) |
| Unknown | 2 (0.6%) |