Table 5. Expression of EMPs, histological grade, and proliferative index on the basis of HER2 status.
| Characteristics | EMP1 | EMP2 | EMP3 | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Positive | Negative | p-value | Positive | Negative | p-value | Positive | Negative | p-value | |||
| HER2 negative (n = 345) | |||||||||||
| Histologic grade | 0.285 | < 0.001 | 0.652 | ||||||||
| I (n = 70) | 66 (94.3) | 4 (5.7) | 56 (80.0) | 14 (20.0) | 58 (82.9) | 12 (17.1) | |||||
| II (n = 150) | 147 (98.0) | 3 (2.0) | 116 (77.3) | 34 (22.7) | 125 (83.3) | 25 (16.7) | |||||
| III (n = 125) | 122 (97.6) | 3 (2.4) | 70 (56.0) | 55 (44.0) | 99 (79.2) | 26 (20.8) | |||||
| Ki67 LI (%) | 18.74 ± 21.16 | 17.70 ± 18.01 | 0.877 | 16.11 ± 19.59 | 24.79 ± 23.09 | 0.001 | 18.22 ± 20.71 | 20.90 ± 22.55 | 0.361 | ||
| HER2 positive (n = 73) | |||||||||||
| Histologic grade | NA | 0.504 | 0.851 | ||||||||
| I (n = 6) | 6 (100.0) | 0 (0.0) | 5 (83.3) | 1 (16.7) | 6 (100.0) | 0 (0.0) | |||||
| II (n = 41) | 41 (100.0) | 0 (0.0) | 36 (87.8) | 5 (12.2) | 39 (5.1) | 2 (4.9) | |||||
| III (n = 26) | 26 (100.0) | 0 (0.0) | 20 (76.9) | 6 (23.1) | 25 (96.2) | 1 (3.8) | |||||
| Ki67 LI (%) | 15.15 ± 11.23 | NA | NA | 15.90 ± 11.53 | 11.42 ± 9.05 | 0.209 | 15.45 ± 11.37 | 8.33 ± 2.89 | 0.286 | ||
Values are presented as number (%) or mean ± standard deviation.
EMP = epithelial membrane protein; HER2 = human epidermal growth factor receptor 2; LI = labelling index; NA = not available.