Table 2. Associations between TGFBI expression and clinicopathological factors of patients with ccRCC (based on TCGA-KIRC).

Characteristics	TGFBI expression		Chi-square/F	P
	Low	High
Stromal score
Low	177	88	59.781	<0.001
High	88	177
Immune score
Low	166	99	33.879	<0.001
High	99	166
Age
≤65	164	169	0.202	0.653
>65	101	96
Gender
Male	148	196	19.085	<0.001
Female	117	69
Laterality
Left	122	127	0.227	0.634
Right	143	137
NA		1
Grade
GX	4	1	24.392	<0.001
G1	10	4
G2	125	102
G3	103	119
G4	20	55
NA	3	0
Stage
Stage I	148	117	11.178	0.011
Stage II	32	25
Stage III	53	70
Stage IV	32	51
Discrepancy
Cancer status
Tumor free	194	160	14.169	<0.001
With tumor	59	101
NA	12	4