Table 5. Multivariate regression analysis for overall survival (OS) in patients with intrahepatic CCA.

RISK FACTOR	REGRESSION COEFFICIENT	HAZARD RATIO (HR)	p-value	95% CI for HR
Surgery	−1.248	0.287	0.031825	0.09191–0.8972
Male gender	1.177	3.25	0.010583	1.31606–8.0071
TP53	1.593	4.92	0.000645	1.97007–12.2914
KRAS	0.852	2.34	0.052791	0.98979–5.5519
FGF	−18.842	6.56e-09	0.997732	N/A