Table 1.
Clinical variable in prostate cancer and negative biopsy subjects.
| Prostate cancer | Negative biopsy | p Value | |
|---|---|---|---|
| n | 579 | 1731 | |
| Age | |||
| Mean (SD) | 69.41 (7.73) | 65.85 (8.87) | |
| Median (IQR) | 70.00 (11.00) | 66.00 (11.00) | <0.0001a |
| PSA | |||
| Mean (SD) | 7.31 (1.61) | 7.11 (1.66) | |
| Median (IQR) | 7.40 (2.60) | 7.10 (2.80) | 0.0102a |
| Percent free PSA | |||
| Mean (SD) | 0.151 (0.078) | 0.170 (0.082) | |
| Median (IQR) | 0.140 (0.091) | 0.158 (0.102) | <0.0001a |
| Prostate volume | |||
| Mean (SD) | 42.29 (22.78) | 52.03 (27.61) | |
| Median (IQR) | 36.45 (21.75) | 45.97 (32.10) | <0.0001a |
| No. of biopsy cores | |||
| Mean (SD) | 11.31 (1.87) | 10.95 (1.98) | |
| Median (IQR) | 12.00 (2.00) | 12.00 (2.00) | <0.0001a |
SD, standard deviation; IQR, interquartile range; PSA, prostate specific antigen.
a
Mann-Whitney U test.