Table 1.
Baseline characteristics of 126 patients with early breast cancer.
| Variable | No. (%) |
|---|---|
| Age (years, median) | 42 |
| ≤45 | 88(69.8) |
| >45 | 38(30.2) |
| Menopause | |
| No | 108(85.7) |
| Yes | 18(14.3) |
| Family history | |
| No | 97(77.0) |
| BC or OC | 12(9.5) |
| others | 17(13.5) |
| Dominant feature | |
| Mass only | 103(81.7) |
| Mass with calcification | 23(18.3) |
| BI-RADS classification | |
| 3 | 101(80.2) |
| 4a | 25(19.8) |
| Largest tumor dimension/mm | |
| ≤10 | 20(15.9) |
| 10-20 | 74(58.7) |
| >20 | 32(25.4) |
| Surgical method | |
| Breast conserving surgery | 29(23.0) |
| Mastectomy | 97(77.0) |
| Histological type | |
| IDC | 83(65.9) |
| DCIS | 26(20.6) |
| Others a | 17(13.5) |
| Lymph node status | |
| LN- b | 104(82.5) |
| LN+ c | 22(17.5) |
| TNM stage | |
| 0 | 26(20.6) |
| Ⅰ | 61(48.4) |
| ⅡA | 29(23.0) |
| ⅡB | 10(7.9) |
| ER (missing 11) | |
| Positive | 92(80.0) |
| Negative | 23(20.0) |
| PR (missing 15) | |
| Positive | 83(74.8) |
| Negative | 28(25.2) |
| Her-2 (missing 21) | |
| Positive | 30(28.6) |
| Negative | 75(71.4) |
Abbreviations: BC: breast cancer; OC: ovarian cancer; IDC: invasive ductal carcinoma; DCIS: ductal carcinoma in situ; ER: estrogen receptor; PR: progesterone receptor; HER-2: human epidermal growth factor receptor 2.
a Others included invasive lobular carcinoma (2 cases), mucinous carcinoma (9 cases), phylloides tumor (2 cases), signet-ring cell carcinoma (1 case), medullary carcinoma (1 case), metaplastic carcinoma (1 case), intraductal papillary carcinoma (1 case).
b No metastatic axillary lymph node.
c One or more metastatic axillary lymph node.