Table 1.
Correlation between pERK1/2 expression and clinicopathological factors
| Total | pERK1/2 (+) | pERK1/2 (−) | P value | |
|---|---|---|---|---|
| Age (year ± SD) | 57.4 ± 10.9 | 53.6 ± 9.2 | 0.142a | |
| Sex (F/M) | 14/45 | 7/22 | 7/23 | 0.942b |
| Tumor size (cm ± SD) | 6.1 ± 3.5 | 7.0 ± 3.3 | 0.276a | |
| Location | ||||
| Intrahepatic type | 36 | 19 | 17 | 0.486b |
| Extrahepatic type | 23 | 10 | 13 | |
| Histological type | ||||
| Papillary | 22 | 13 | 9 | 0.239b |
| Tubular | 37 | 16 | 21 | |
| Lymph node metastasisc | ||||
| (+) | 25 | 9 | 16 | 0.020b |
| (−) | 23 | 16 | 7 | |
| Distant metastasisd | ||||
| (+) | 13 | 7 | 6 | 0.752b |
| (−) | 43 | 21 | 22 | |
aStudent’s t test
b χ 2 independence test
cLymph node metastasis data were not available in 11 cases
dDistant metastasis data were not available in three cases