Table 1.
Characteristic of the study population
| |
Males with positive biopsy (n = 81) |
Males with negative biopsy (n = 57) |
|
Total (n = 138) |
|---|---|---|---|---|
| Median (range) | Median (range) | p-value | Median (range) | |
| Age (years) |
72 (51-86) |
67 (55-81) |
0.002 |
70 (51-86) |
| PSA (ng/ml) |
9.7 (3.8-690) |
7.4 (1.4-24.1) |
0.002 |
8.3 (1.4-690) |
| Free PSA (ng/ml) |
1.5 (0.46-95) |
1.2 (0.15-3.3) |
0.008 |
1.4 (0.15-95) |
| %fPSA (%) |
15 (3-38) |
17 (2-39) |
0.679 |
15 (3-39) |
| PV (cm3) |
28.7 (11.5-95.2) |
34.0 (16.2-111) |
0.002 |
30.4 (11.5-111) |
| TZV (cm3) |
13.3 (3.7-45) |
16.9 (2.9-78) |
0.04 |
15.2 (2.9-78) |
| PSAD (ng/ml/cm3) | 0.39 (0.07-46.6) | 0.20 (0.06-1.0) | <0.001 | 0.27 (0.06-46.6) |
Abbreviation:SD standard deviation, PSA prostate-specific antigen, %fPSA percent-free PSA, PV prostate volume, TZV transition zone volume, PSAD PSA density.