Table 1.

Patient characteristics of all cases.

Variables	Negative biopsy	Positive biopsy	P value
Number	108	145
Age (years)	67.5 (35–79)	71 (51–84)	0.0001
PSA (ng/mL)	6.90 (1.06–27.29)	9.67 (2.77–3534.41)	<0.0001
PV (mL)	33.3 (10.5–119.7)	24.7 (10–100)	<0.0001
PSAD (ng/mL/cm3)	0.21 (0.05–0.53)	0.42 (0.05–39.5)	<0.0001
TT (ng/mL)	2.98 (1.02–7.76)	3.32 (1.63–9.42)	0.199
FT (pg/mL)	7.4 (2.2–27.5)	6.5 (0.8–17.1)	0.0004
%FT (%)	0.245 (0.081–1.26)	0.196 (0.019–0.481)	<0.0001

Median (range). P value was calculated by Mann–Whitney U test.

FT, free testosterone; %FT, percent free testosterone; PSA, prostate-specific antigen; PSAD, PSA density; PV, prostate volume; TT, total testosterone.