Table 3.
Associations between androgen receptor (AR) expression and clinicopathological characteristics by age in the estrogen receptor (ER)-positive cohort
| ≤50 (n=88) | >50 (n=91) | |||||
|---|---|---|---|---|---|---|
| AR | AR | |||||
| Factors | Low (n=31) | High (n=57) | P-value | Low (n=17) | High (n=74) | P-value |
| Nuclear grade | ||||||
| 1 | 17 (54.8) | 30 (52.6) | 0.8442 | 5 (29.4) | 42 (56.8) | 0.0632 |
| 2 | 6 (19.4) | 14 (24.6) | 6 (35.3) | 22 (29.7) | ||
| 3 | 8 (25.8) | 13 (22.8) | 6 (35.3) | 10 (13.5) | ||
| Progesterone receptor | ||||||
| Negative | 6 (18.8) | 9 (15.8) | 0.7219 | 8 (47.1) | 30 (40.5) | 0.6244 |
| Positive | 26 (81.2) | 48 (84.2) | 9 (52.9) | 44 (49.5) | ||
| HER2 | ||||||
| Negative | 31 (96.9) | 53 (93.0) | 0.424 | 12 (70.6) | 67 (90.5) | 0.0445 |
| Positive | 1 (3.1) | 4 (7.0) | 5 (29.4) | 7 (9.5) | ||
| Ki67 index (%) | 16.8±2.6 | 15.8±2.10 | 0.7534 | 18.9±2.1 | 11.3±1.0 | 0.0015 |