Survival disparities among racial groups with hepatic malignant tumors

Table 4 Cox regression analysis of black people with hepatic malignant tumors

Classification	B	SE	Z	P value	HR (95%CI)
T
1	Ref.
2	0.402	0.108	3.706	< 0.001	1.49 (1.21, 1.85)
3	0.389	0.150	2.594	0.009	1.47 (1.1, 1.98)
4	1.152	0.234	4.926	< 0.001	3.16 (2, 5.01)
M	0.784	0.145	5.404	< 0.001	2.19 (1.65, 2.91)
Surgical	1.344	0.135	9.983	< 0.001	3.84 (2.95, 4.99)
Chemotherapy	0.606	0.090	6.692	< 0.001	1.83 (1.53, 2.19)
AFP	0.373	0.124	3.024	0.002	1.45 (1.14, 1.85)
Tumor size
0-2.5 cm	Ref.
2.5-5 cm	0.52	0.139	3.734	< 0.001	1.68 (1.28, 2.21)
5-10 cm	0.788	0.180	4.366	< 0.001	2.2 (1.54, 3.13)
> 10 cm	1.498	0.210	7.150	< 0.001	4.47 (2.97, 6.75)
Average annual income ($)
0-44999	Ref.
45000-54999	-0.236	0.164	-1.440	0.15	0.79 (0.57, 1.09)
55000-64999	-0.416	0.143	-2.911	0.004	0.66 (0.5, 0.87)
65000-74999	-0.342	0.172	-1.985	0.047	0.71 (0.51, 1)
≥ 75000	-0.54	0.148	-3.651	< 0.001	0.58 (0.44, 0.78)

AFP: Alpha-fetoprotein; HR: Hazard ratio.