Table 1. Composition of the prognosis tissue microarray containing 11,152 prostate cancer specimens.
| No. of patients | ||
|---|---|---|
| Study cohort on tissue microarray (n = 11,152) | Biochemical relapse among categories (n = 1,824) | |
| Follow-up (mo) | ||
| Mean | 53.4 | - |
| Median | 36.8 | - |
| Age (y) | ||
| <50 | 318 | 49 |
| 50–60 | 2,768 | 460 |
| 60–70 | 6,548 | 1,081 |
| >70 | 1,439 | 232 |
| Pretreatment PSA (ng/ml) | ||
| <4 | 1,407 | 142 |
| 4–10 | 6,735 | 827 |
| >10–20 | 2,159 | 521 |
| >20 | 720 | 309 |
| pT category (AJCC 2002) | ||
| pT2 | 7,370 | 570 |
| pT3a | 2,409 | 587 |
| pT3b | 1,262 | 618 |
| pT4 | 63 | 49 |
| Gleason grade | ||
| ≤3+3 | 2,859 | 193 |
| 3+4 | 6,183 | 849 |
| 4+3 | 1,565 | 573 |
| ≥4+4 | 482 | 208 |
| pN category | ||
| pN0 | 6,117 | 1,126 |
| pN+ | 561 | 291 |
| Surgical margin | ||
| negative | 8,984 | 1,146 |
| positive | 1,970 | 642 |