Table 4 Clinical and histological characteristics of the patients whose prostate biopsy needles were used for residual sample retrieval and analysis
| Tumoural wash-off samples | Normal wash-off samples | ||
|---|---|---|---|
| Number of patientsa | 27 | Number of patients | 26 |
| Mean age (years) | 66 (52–84) | Mean age (years) | 67 (57–78) |
| Mean PSA (ng ml−1)b | 648 (1.47–10,230) | Mean PSA (ng ml−1)c | 13.24 (2.11–79) |
| Median PSA (ng ml−1)b | 8 | Median PSA (ng ml−1)c | 8.14 |
| Mean ratio free PSA/total PSA (%)d | 18.1 (6.9–34) | Mean ratio free PSA/total PSA (%)e | 16.6 (9–24.7) |
| Median ratio free PSA/total PSA (%)d | 15.9 | Median ratio free PSA/total PSA (%)e | 17.8 |
| Gleason score (number of patients) | |||
| 6 | 10 | ||
| 7 | 12 | ||
| 8 | 0 | ||
| 9 | 3 | ||
| 10 | 2 | ||
| Mean % of carcinoma in the tissue coref | 53.8 (<5–90) | ||
