Table 3.

Multivariate overall survival analysis by Cox proportional hazard model

Clinicopathological features	P‐value
RAS	0.007a
Gender	0.4
Age (y.o.)	0.6
Tumor location	0.4
AJCC stage	0.02a
Mucinous component	0.5
Lymph node metastasis	0.5
Lymph vessel invasion	0.3
Venous invasion	0.2
Microsatellite instability	0.9
Methylation epigenotype	0.9

^a P < 0.05.