Research Article
Breast-Conserving Surgery in Triple-Negative Breast Cancer: A Retrospective Cohort Study
Table 1
Comparison of general data of two groups of patients.
| | Group | Number | Age (years, x ± s) | Tumor size (n, %) | Clinical stage (n, %) | Ki-67 (n, %) | Histological grade (n, %) | | ≤2 cm | >2 cm | Stage I | Stage II | <30% | ≥30% | Grade I | Grade II | Grade III |
| | Exposure group | 46 | 44.72 ± 13.75 | 24 (52.2) | 22 (47.8) | 16 (34.8) | 30 (65.2) | 20 (43.5) | 26 (56.5) | 15(32.6) | 21 (45.7) | 10 (21.7) | | Nonexposure group | 80 | 47.24 ± 12.45 | 31(38.8) | 49 (61.3) | 22(27.5) | 58 (72.5) | 36 (45.0) | 44 (55.0) | 19 (23.8) | 47 (58.8) | 14 (17.5) | | t/χ2 | | −1.053 | 2.140 | 0.735 | 0.027 | 2.053 | | | 0.295 | 0.144 | 0.391 | 0.869 | 0.358 |
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