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Table 2 Characteristics of prostate cancer cases and controls included in association study

From: Carboxypeptidase 4 gene variants and early-onset intermediate-to-high risk prostate cancer

  Cases (N = 506) Controls (N = 506)
Age (mean ± SD) 65.7 ± 8.2 65.6 ± 8.3
Ethnicity n (%)   
African-American 89 (18) 89 (18)
Caucasian 417 (82) 417 (82)
Institution n (%)   
Cleveland Clinic Foundation 407 (80) 407 (80)
University Hospitals, Cleveland 99 (20) 99 (20)
Family history of prostate cancer n (%)   
Yes* 31 (6) 7 (1)
No 475 (94) 499 (99)
Tumor Stage† n (%)   
T1 305 (60) NA
T2 145 (29) NA
T3 30 (6) NA
Gleason Score n (%)   
5 3 (1) NA
6 79 (16) NA
7 314 (62) NA
8 67 (13) NA
9 39 (8) NA
10 4 (1) NA
PSA ng/ml (mean ± SD) 14.1 ± 27.4 1.7 ± 1.7
  1. *1st degree relatives ≥ 2 or one 1st degree and 2nd degree relatives ≥ 2.
  2. Numbers do not add to 100% due to missing data