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Table 1 Characteristic of the study population

From: Photodynamic diagnosis of shed prostate cancer cells in voided urine treated with 5-aminolevulinic acid

  Males with positive biopsy (n = 81) Males with negative biopsy (n = 57)   Total (n = 138)
  Median (range) Median (range) p-value Median (range)
Age (years) 72 (51-86) 67 (55-81) 0.002 70 (51-86)
PSA (ng/ml) 9.7 (3.8-690) 7.4 (1.4-24.1) 0.002 8.3 (1.4-690)
Free PSA (ng/ml) 1.5 (0.46-95) 1.2 (0.15-3.3) 0.008 1.4 (0.15-95)
%fPSA (%) 15 (3-38) 17 (2-39) 0.679 15 (3-39)
PV (cm3) 28.7 (11.5-95.2) 34.0 (16.2-111) 0.002 30.4 (11.5-111)
TZV (cm3) 13.3 (3.7-45) 16.9 (2.9-78) 0.04 15.2 (2.9-78)
PSAD (ng/ml/cm3) 0.39 (0.07-46.6) 0.20 (0.06-1.0) <0.001 0.27 (0.06-46.6)
  1. Abbreviation: SD standard deviation, PSA prostate-specific antigen, %fPSA percent-free PSA, PV prostate volume, TZV transition zone volume, PSAD PSA density.