Table 1 Characteristics of enroll patients

Mean (range) age (yr)

60.3 (43-75)

62.6 (52-77)

0.124^a

Mean (range) PSA (ng/mL)

6.4 (1.4-52.4)

9.0 (2.0-35.6)

0.006^a

Prostate volume (range) (mL)

43.9 (41.5-46.3)

48.9 (42.0-55.7)

0.172^a

PSA density (range)

0.16 (0.02-0.87)

0.20 (0.04-0.84)

0.154^a

Surgical GS (%)

<0.001^b

6

38 (95.0)

2 (5.0)

3 + 4

57 (89.1)

9 (10.9)

4 + 3

18 (90.0)

2 (10.0)

8

13 (59.1)

7 (40.9)

9

10 (58.8)

7 (41.2)

Pathologic stage (%)

0.071^b

T2a

2 (100)

0 (0)

T2b

1(100)

0 (0)

T2c

38 (90.5)

4 (9.5)

T3a

87 (81.3)

20 (18.7)

T3b

8 (72.7)

3 (27.3)

Positive surgical margin

0.459^c

Negative

66 (85.7)

11 (14.3)

Positive

70 (81.4)

16 (18.6)