Table 1. . Preoperative characteristics of population samples.
| Characteristics | Biopsy | Biopsy - | Biopsy + | Pathology by radical prostatectomy |
|---|---|---|---|---|
| n | 135 | 68 | 77 | 52 |
| Age (years)† | 63 ± 8 | 61 ± 7 | 65 ± 8 | 63 ± 7 |
| BMI (kg/m2)† | 27 ± 4 | 27 ± 3 | 27 ± 4 | 41 ± 15 |
| Total prostate volume (ml)† | 51 ± 26 | 61 ± 29 | 41 ± 15§ | 41 ± 15 |
| Transition zone volume (ml)† | 26 ± 17 | 32 ± 21 | 21 ± 12 | 21 ± 13 |
| PSA (ng/ml)‡ | 6.8 (5.1–10.0) | 6.1 (4.3–7.9) | 7.9 (5.5–12.3)§ | 7.7 (5.5–11.2) |
| PSA density (ng/ml2)‡ | 0.15 (0.10–0.23) | 0.11 (0.09–0.15) | 0.20 (0.13–0.30)§ | 0.19 (0.13–0.29) |
| Serum IL-8 (pg/ml)‡ | 5.4 (3.8–8.2) | 4.8 (2.8–8.0) | 6.4 (4.5–8.6) | 6.6 (4.7–8.4) |
†Mean ± SD.
‡Median (Q25–Q75).
§Significantly different from biopsy-negative proven prostate cancer.
Biopsy: Patient undergoing prostate biopsy; Biopsy -: Patient without biopsy-proven prostate cancer; Biopsy +: Patient with biopsy-proven cancer; n: Number of patient; PSA: Prostate-specific antigen; RP: Patient undergoing radical prostatectomy.