Table 1. Clinicopathologic characteristics of breast cancer patients included in this study.
| Variables | TCGA cohort | GSE21653 dataset | GSE25066 dataset |
| Number (%) | Number (%) | Number (%) | |
| Age | |||
| < 60 | 172 (54.1) | 135 (56.0) | 244 (79.0) |
| ≥60 | 146 (45.9) | 106 (44.0) | 65 (21.0) |
| Surgery type | |||
| Lumpectomy | 109 (34.3) | / | / |
| Modified Radical Mastectomy | 109 (34.0) | / | / |
| Other | 101 (31.8) | / | / |
| Margin status | |||
| Negative | 291 (91.5) | / | / |
| Positive | 16 (5.0) | / | / |
| Unknow | 11 (3.5) | / | |
| Tumor status | |||
| Tumor free | 256 (80.5) | / | / |
| With tumor | 40 (12.6) | / | / |
| Unknow | 22 (6.9) | / | |
| T stage | |||
| T1 | 93 (29.2) | 55 (22.8) | 22 (7.1) |
| T2 | 174 (54.7) | 121 (50.2) | 165 (53.4) |
| T3–4 | 51 (16.0) | 65 (27.0) | 122 (39.5) |
| N stage | |||
| N0 | 149 (46.9) | 113 (46.9) | 87 (28.2) |
| N1–3 | 169 (53.1) | 128 (53.1) | 222 (71.8) |
| Stage | / | ||
| I | 54 (17.0) | / | 6 (1.9) |
| II | 175 (55.0) | / | 165 (53.4) |
| III–IV | 79 (24.8) | / | 134 (43.4) |
| Unknow | 10 (3.1) | / | 4 (1.3) |