Table I.
Clinicopathological factors of 341 lymph node-negative breast cancer patients.
| Patients, n (%) | Recurrence patients, n (%) | No disease survival, n (%) | |
|---|---|---|---|
| Age of Diagnosis, years | |||
| ≤35 | 32 (9.4) | 11 (15.1) | 21 (7.8) |
| 36–59 | 244 (71.6) | 53 (72.6) | 191 (71.3) |
| ≥ 60 | 65 (19.1) | 9 (12.3) | 56 (20.9) |
| Menopausal status | |||
| Premenopausal | 196 (57.5) | 47 (64.4) | 149 (55.6) |
| Postmenopausal | 145 (42.5) | 26 (35.6) | 119 (44.4) |
| Tumor diameter, cm | |||
| ≤2 | 176 (51.6) | 29 (39.7) | 147 (55) |
| 2–5 | 142 (41.6) | 39 (53.4) | 103 (38.3) |
| ≥5 | 23 (6.7) | 5 (6.8) | 18 (6.7) |
| Tumor site | |||
| Upper out | 160 (46.9) | 37 (50.7) | 123 (45.9) |
| Upper in | 29 (8.5) | 6 (8.2) | 23 (8.6) |
| Bottom out | 18 (5.3) | 4 (5.4) | 14 (5.3) |
| Bottom in | 82 (24) | 15 (20.5) | 67 (25.1) |
| Around the areola | 52 (15.3) | 11 (15.1) | 41 (15.3) |
| Lymph node dissection | |||
| <10 | 63 (18.5) | 13 (17.8) | 50 (18.7) |
| ≥10 | 278 (81.5) | 60 (82.2) | 218 (81.3) |
| Histopathological type | |||
| Carcinoma simplex | 212 (62.2) | 53 (72.6) | 159 (59.3) |
| Invasive ductal | 86 (25.2) | 13 (17.8) | 73 (27.2) |
| Other types | 43 (12.6) | 7 (9.6) | 36 (13.5) |
| ER | |||
| Positive | 199 (58.4) | 33 (45.2) | 166 (61.9) |
| Negative | 96 (28.2) | 29 (39.7) | 67 (25.0) |
| Unknown | 46 (13.5) | 11 (15.1) | 35 (13.1) |
| PR | |||
| Positive | 214 (62.8) | 40 (50.8) | 174 (64.9) |
| Negative | 80 (23.5) | 22 (30.1) | 58 (21.6) |
| Unknown | 47 (13.8) | 11 (15.1) | 36 (13.4) |
ER, estrogen receptor; PR, progesterone receptor.