TABLE 5

Multivariate Cox Regression Models for RFS

Model	Variable	β	Hazard ratio	95% CI	P
1	Sex (male)	0.491	1.634	0.979−2.726	0.060
	nSUV_peak of primary tumor	−0.136	0.872	0.763−0.998	0.047
	nSUV_peak of hepatic metastasis	0.218	1.244	1.002−1.543	0.048
	Size of hepatic metastasis (cm)	0.050	1.051	0.937−1.180	0.393
	No. of hepatic metastasis	0.169	1.184	0.994−1.410	0.058
2	Sex (male)	0.508	1.663	0.997−2.774	0.051
	M/P ratio of SUV_peak	0.735	2.086	1.041−4.180	0.038
	Size of hepatic metastasis (cm)	0.070	1.073	0.967−1.190	0.183
	No. of hepatic metastasis	0.185	1.204	1.011−1.433	0.037
3	Sex (male)	0.492	1.635	0.979−2.730	0.060
	MTV of hepatic metastasis (cm³)	0.000	1.000	0.994−1.005	0.887
	Size of hepatic metastasis (cm)	0.127	1.136	0.964−1.338	0.129
	No. of hepatic metastasis	0.213	1.237	1.040−1.472	0.016
4	Sex (male)	0.490	1.633	0.978−2.726	0.061
	nTLG of hepatic metastasis (cm³)	0.000	1.000	0.998−1.002	0.937
	Size of hepatic metastasis (cm)	0.123	1.131	0.955−1.338	0.153
	No. of hepatic metastasis	0.212	1.237	1.039−1.472	0.017