Patient characteristics according to the presence or absence of benign prostatic glands at the inked margins
| Characteristics | Benign glands at inked margin | p Value | |
|---|---|---|---|
| Present (N = 55) | Absent (N = 144) | ||
| Values are median (range), with p values assessed by the Wilcoxon rank sum test or N (%) and p values assessed by Fisher’s exact test. | |||
| PIN, prostatic intraepithelial neoplasia; PSA, prostate specific antigen. | |||
| Age (years) | 59 (46–76) | 61.5 (41–77) | 0.13 |
| Preoperative PSA value (ng/ml) | 6.3 (1.2–20) | 5.6 (1.3–48.7) | 0.42 |
| Prostate weight (g) | 36.3 (18–104.6) | 39 (14–122) | 0.30 |
| Pathological stage | 0.70 | ||
| T2a | 7 (12.7%) | 24 (16.7%) | |
| T2b | 36 (65.5%) | 92 (63.9%) | |
| T3a | 10 (18.2%) | 24 (16.7%) | |
| T3b | 2 (3.6%) | 4 (2.8%) | |
| Tumour volume (cc) | 1.6 (0.08–6.5) | 1.3 (0.03–13.6) | 0.30 |
| Largest tumour dimension (cm) | 1.8 (0.3–4.1) | 1.4 (0.02–3.8) | 0.20 |
| Gleason score | 7 (5–9) | 6 (5–9) | 0.09 |
| Extraprostatic extension | 12 (21.8%) | 26 (18.1%) | 0.55 |
| Seminal vesical invasion | 2 (3.6%) | 4 (2.8%) | |
| Multifocality | 48 (87.3%) | 122 (84.7%) | 0.83 |
| Perineural invasion | 44 (80%) | 107 (74.3%) | 0.46 |
| High grade PIN | 53 (98.2) | 144 (100%) | |
| PSA recurrence | 6 (10.9%) | 11 (7.6%) | 0.57 |