Table 1.
Patient characteristics
| Variables | N =1756 |
|---|---|
| Median age (IQR) (years) | 59 (54–64) |
| Median body mass index (IQR) (kg/m2) | 28 (25–30) |
| No. race (%) (n = 1716) | |
| black | 126 (7.3) |
| others | 1590 (92.7) |
| Median MRI-measured prostate volume (IQR) (cm3) | 31 (24–42) |
| Median preoperative PSA (IQR) (ng/mL) | 5.5 (4.0–7.9) |
| No. biopsy Gleason score (%) | |
| ≤ 6 | 904 (51.5) |
| ≥ 7 | 852 (48.5) |
| No. clinical stage (%) | |
| T1c | 1072 (61.0) |
| ≥ T2 | 684 (39.0) |
| No. pathologic Gleason score (%) | |
| ≤ 6 | 527 (30.0) |
| ≥ 7 | 1229 (70.0) |
| No. extracapsular extension (%) | 589 (33.5) |
| No. seminal vesicle invasion (%) | 118 (6.7) |
| No. positive surgical margin (%) | 235 (13.4) |
| No. lymph node involvement (%) | 100 (5.7) |
IQR = interquartile range; MRI = magnetic resonance imaging; PSA = prostate-specific antigen