Table 2.
The Relationship between expression level of Ki67 and the patients’ characteristics
| Factor | Low Ki67 (n) | Intermediate Ki67 (n) | High Ki67 (n) | P value |
|---|---|---|---|---|
| Age (y) | 0.358 | |||
| ≤ 50 | 34 | 39 | 43 | |
| > 50 | 11 | 21 | 35 | |
| Menstrual status | 0.214 | |||
| Premenopausal | 29 | 42 | 51 | |
| Postmenopausal | 16 | 18 | 27 | |
| Tumor size (cm) | < 0.001 | |||
| ≤ 2.0 | 16 | 30 | 3 | |
| > 2.0 | 29 | 30 | 75 | |
| Lymph node status | < 0.001 | |||
| Negative | 29 | 28 | 5 | |
| Positive | 16 | 32 | 73 | |
| Histological grade | 0.026 | |||
| G1-2 | 40 | 43 | 19 | |
| G3 | 5 | 17 | 59 | |
| HER2 status | < 0.001 | |||
| Positive | 14 | 36 | 72 | |
| Negative | 31 | 24 | 6 | |
| lymphovascular invasion | 0.019 | |||
| Absent | 33 | 34 | 17 | |
| Present | 12 | 26 | 61 | |