Table 3 Clinicopathological variables and their correlation with immunohistochemical expression of EGFR in primary tumours
Clinicopathological variables | CRC patients with ovarian metastasis | CRC patients with non-ovarian metastasis | ||||
|---|---|---|---|---|---|---|
Total | Positive [n (%)] | P′ | Total | Positive [n (%)] | P″ | |
Total | 22 | 14 (63.6) | 24 | 14 (58.3) | ||
Age | ||||||
≤ 55 | 15 | 9 (60) | 1.000 | 6 | 3 (50.0) | 0.665 |
> 55 | 7 | 5 (71.4) | 18 | 11 (61.1) | ||
Primary tumour location | ||||||
Colon | 17 | 10 (58.8) | 0.613 | 14 | 8 (57.1) | 1.000 |
Rectum | 5 | 4 (80.0) | 10 | 6 (60.0) | ||
Differentiation | ||||||
High | 2 | 1 (50.0) | 1.000 | 1 | 0 (0.0) | 0.417 |
Mid-Low | 19 | 12 (63.2) | 23 | 14 (60.9) | ||
unknown | 1 | 1 (100) | ||||
Positive lymph node | ||||||
0 | 5 | 4 (80.0) | 0.716 | 6 | 1 (16.7) | 0.101 |
1~3 | 6 | 3 (50.0) | 10 | 7 (70.0) | ||
≥ 4 | 9 | 6 (66.7) | 8 | 6 (75.0) | ||
unknown | 2 | 1 (50.0) | – | – | ||
Tumour diameters | ||||||
≤ 5 cm | 11 | 8 (72.7) | 0.642 | 16 | 9 (56.3) | 1.000 |
> 5 cm | 9 | 6 (66.7) | 8 | 5 (62.5) | ||
unknown | 2 | 1 (50) | – | – | ||
Vascular cancer embolus | ||||||
Yes | 9 | 5 (55.6) | 0.662 | 10 | 6 (60.0) | 1.000 |
No | 13 | 9 (69.2) | 11 | 7 (63.6) | ||
unknown | 0 | 0 (0.0) | 3 | 1 (33.3) | ||