Table 4. Multivariate regression analysis for progression free survival (PFS) in patients with intrahepatic CCA.

RISK FACTOR	REGRESSION COEFFICIENT	HAZARD RATIO (HR)	p-value	95% CI for HR
Stage III	0.7417	2.0995	0.3531	0.4388–10.046
Stage IV	1.4668	4.3352	0.0593	0.9441–19.908
KRAS	0.3110	1.3648	0.5692	0.4678–3.982
MAP/ERK	0.6120	1.8441	0.2339	0.6732–5.052