Table 3.

Univariate and multivariate Cox regression analyses of progression‐free survival

Features	B	Wald	HR (95% CI)	P value
Univariate Cox regression
ISS stage III	0.829	7.932	2.291 (1.286‐4.080)	0.005*
Age ≥60 y	0.454	3.529	1.575 (0.981‐2.529)	0.060
Beta‐2‐MG>5.5 mg/dL	0.829	7.923	2.291 (1.286‐4.080)	0.005*
Creatinine>176.8 µmol/L	0.192	0.481	1.211 (0.705‐2.081)	0.488
CD117(+)	−0.523	3.992	0.593 (0.355‐0.990)	0.046*
CD81(+)	0.779	10.335	2.179 (1.355‐3.505)	0.001*
Multivariate Cox regression
ISS stage III	0.723	5.952	2.061 (1.153‐3.685)	0.015*
Beta‐2‐MG>5.5 mg/dL	0.326	0.928	1.358 (0.714‐2.688)	0.335
CD117(+)	−0.318	1.374	0.727 (0.427‐1.239)	0.241
CD81(+)	0.582	5.299	1.790 (1.090‐2.940)	0.021*

^a P < 0.05.