Table 1. Basic characteristics.

Basic characteristics		Subject
		n	%
Age
	50-59 years old	12	22.64
	60-69 years old	33	62.24
	70-79 years old	6	11.32
	80-89 years old	2	3.77
Gender
	Man	53	100
	Woman	0	0
PSA
	<10 ng/ml	12	22.64
	>10 ng/ml	41	77.36
PSAD
	<0.15	7	13.73
	≥0.15	44	86.27