Potential of six-transmembrane epithelial antigen of the prostate 4 as a prognostic marker for colorectal cancer

Table 2 Correlation between six-transmembrane epithelial antigen of the prostate 4 expression and clinicopathological parameters in colorectal cancer patients

Clinical parameter	STEAP4		P value
	Low (%)	High (%)
Gender
Female	29 (59.2)	20 (40.8)	0.123
Male	19 (43.2)	25 (56.8)
Primary tumor stage1
T1-T3	36 (48.0)	39 (52.0)	0.213
T4a-T4b	11 (64.7)	6 (35.3)
Lymph node status
N0-N1	41 (48.8)	43 (51.2)	0.160
N2	7 (77.8)	2 (22.2)
AJCC stage
Phase 1-2	28 (43.1)	30 (56.9)	0.407
Phase 3	20 (57.1)	15 (42.9)

¹One colorectal cancer patient with undetected primary tumor (Tx) was excluded from the primary tumor stage.

STEAP4: Six-transmembrane epithelial antigen of the prostate 4; AJCC: American Joint Committee on Cancer.