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Table 1 Characteristics of the study cohort

From: A panel of kallikrein markers can reduce unnecessary biopsy for prostate cancer: data from the European Randomized Study of Prostate Cancer Screening in Göteborg, Sweden

  No cancer detected n = 548 Diagnosed with cancer n = 192
Clinical characteristics   
Age at venipuncture (years) 61 (58, 64) 61 (58, 64)
Total PSA (ng/ml) 4.21 (3.39, 5.55) 5.81 (4.07, 10.4)
Free PSA (ng/ml) 0.87 (0.66, 1.25) 0.83 (0.60, 1.35)
Intact PSA (ng/ml) 0.37 (0.28, 0.52) 0.43 (0.29, 0.73)
Human kallikrein 2 (ng/ml) 0.046 (0.030, 0.068) 0.076 (0.050, 0.128)
Tumor characteristics   
Abnormal DRE 50 (9%) 76 (40%)
Biopsy Gleason score   
   ≤6   152 (79%)
   7   33 (17%)
   ≥8   7 (4%)
  1. Data are median (interquartile range) or frequency (percentage). DRE, digital rectal examination; PSA, prostate specific antigen.