Table 1. Clinical and pathologic characteristics of the patients.

Characteristic	Value
No. of patients	132
No. of PZ nodules	134
Clinical characteristics*	Benign lesions** (n = 80)	Malignant lesions (n = 54)	p value
Age (y)	65.9 ± 9.0	67.1 ± 10.8	0.475
PSA (ng/ml)	5.2 ± 3.0	5.9 ± 3.1	0.211
Prostate volume (cm3)	50.1 ± 26.5	43.3 ± 13.1	0.206
Gleason score	No. of lesions, n (%)
5	4 (7.4)
6	19 (35.2)
7	21 (38.9)
8	7 (13.0)
9	3 (5.5)

PZ: peripheral zone, PSA: prostate-specific antigen.

^*Data are shown as the mean ± standard deviation.

^**Benign: 76, benign prostatic hyperplasia; 4, chronic prostatitis.