Table 5. Sensitivity comparison of PSA and GSTP1 methylation for PCa diagnosis.

PSA	GSTP1 methylation		Total
	+	－
+	31	9	40
－	17	2	19
Total	48	11	59

P=0.16. GSTP1, glutathione S-transferase Pi-1; PCa, prostate cancer; PSA, prostate-specific antigen.