TABLE 1.
The clinical and pathological characteristics of the study population
| Variable | Mean (SD, range) or n (%) |
|---|---|
| Age, years | 56.1 (6.7, 34–75) |
| Race | |
| Caucasian | 1116 (88.9) |
| African-American | 64 (5.1) |
| Other | 63 (5.0) |
| Missing | 13 (1.0) |
| Positive family history (1141 with data) | 461 (40.4) |
| PSA level, ng/mL | 5.7 (3.7, 0.2–43.1) |
| Biopsy Gleason score | |
| ≤6 | 963 (76.7) |
| 7 | 260 (20.7) |
| 8–10 | 33 (2.6) |
| Clinical stage | |
| T1 a/b/c | 958 (76.3) |
| T2a | 222 (17.7) |
| T2b | 67 (5.3) |
| T2c | 6 (0.5) |
| T3 | 2 (0.2) |
| EPE | 274 (21.8) |
| Positive surgical margins | 84 (6.7) |
| Seminal vesicle invasion | 44 (3.5) |
| Lymph node metastases | 29 (2.3) |