Table 2.
Distribution of EP3 staining patterns
| EP3 negative | EP3 positive | |||||
|---|---|---|---|---|---|---|
| n | (%) | n | (%) | p-value | ||
| histology | ||||||
| NST | 42 | (14.5) | 102 | (35.3) | ||
| non NST | 42 | (14.5) | 103 | (35.6) | 0.970 | |
| tumor foci | ||||||
| unifocal | 44 | (15.2) | 107 | (37.0) | ||
| ≥ 2 foci | 40 | (13.8) | 98 | (33.9) | 0.977 | |
| tumor grade | ||||||
| G1-G2 | 31 | (20.5) | 76 | (50.3) | ||
| G3 | 13 | (8.6) | 31 | (20.5) | 0.944 | |
| pT | ||||||
| pT1 | 53 | (18.3) | 140 | (48.4) | ||
| pT2-pT4 | 31 | (10.7) | 65 | (22.5) | 0.394 | |
| pN | ||||||
| pN0 | 42 | (14.6) | 123 | (42.9) | ||
| pN1-pN3 | 41 | (14.3) | 81 | (28.2) | 0.132 | |
| ER | ||||||
| negative | 12 | (4.2) | 43 | (14.9) | ||
| positive | 72 | (24.9) | 162 | (56.1) | 0.188 | |
| PR | ||||||
| negative | 30 | (10.4) | 89 | (30.8) | ||
| positive | 54 | (18.7) | 116 | (40.1) | 0.227 | |
| HER2 | ||||||
| negative | 70 | (24.9) | 176 | (62.6) | ||
| positive | 11 | (3.9) | 24 | (8.5) | 0.716 | |
| age (years) | ||||||
| median | 59.0 | 57.7 | ||||
| range | 62 | 60 | 0.286 | |||
NST no special type, ER estrogen receptor, PR progesterone receptor