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. 2017 Oct 18;25(1):59–67. doi: 10.1530/ERC-17-0134

Table 3.

Patient characteristics of 156 patients with PSA levels under 10 ng/mL.

Variables Negative biopsy Positive biopsy P value
Number 81 75
Age (years) 67 (35–79) 71 (52–80) 0.014
PSA (ng/mL) 5.75 (1.06–9.93) 5.74 (2.77–9.74) 0.358
PV (mL) 31 (10.5–90) 24 (10–77) 0.0004
PSAD (ng/mL/cm3) 0.19 (0.05–0.52) 0.27 (0.05–0.65) 0.0002
TT (ng/mL) 3.02 (1.35–7.76) 3.32 (1.86–6.81) 0.378
FT (pg/mL) 7.8 (2.2–27.5) 6.6 (0.8–17.1) 0.003
%FT (%) 0.249 (0.081–1.27) 0.195 (0.019–0.353) <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.