Table 1.

Clinicopathologic variables of prostate cancer patients

	More aggressive cases	Less aggressive cases
Number of subjects	1,017	528
Mean age (SD), year	60.1 (6.89)	56.8 (6.46)
Age at diagnosis, No. (%)
< 65 years	708 (72)	463 (88)
≥ 65 years	274 (28)	64 (12)
Serum PSA levels, No. (%)
< 4.0 ng/mL	76 (10)	191 (36)
≥ 4.0 ng/mL	660 (90)	333 (64)
Pathologic stage, No. (%)
T2N0	186 (27)	528 (100)
T3 or N+ or M+	502 (73)	0 (0)
Pathological Gleasone score, No. (%)
≤ 6	72 (8)	528 (100)
7	606 (63)	0 (0)
8	148 (15)	0 (0)
≥ 9	131 (14)	0 (0)