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Table 1 Clinicopathological features of colorectal tissue and stool samples used in this study

From: Feasibility of quantifying SDC2 methylation in stool DNA for early detection of colorectal cancer

Characteristics Number of patients (%)
Tissues Stool
Healthy normal n = 5 n = 22
 Sex (%)
  Male 4 (80.0) 12 (54.5)
  Female 1 (20.0) 10 (45.5)
  Age, mean (range) 55.5 (48–65) 58.8 (36–77)
Polyp n = 49 n = 21
 Sex (%)
  Male 37 (75.5) 13 (61.9)
  Female 12 (24.5) 8 (38.1)
  Age, mean (range) 57.2 (28–89) 63.4 (51–75)
 Number of polyps analyzed from each patient (range, 1–6) (%)
  1 21 (42.9) 3 (14.3)
  2–3 23 (46.9) 15 (71.4)
  ≥ 4 5 (10.2) 3 (14.3)
 Histopathology
  Hyperplastic 17 (34.7)  
  Tubular 27 (84.3) 21 (100)
  Tubularvillous 5 (15.7)  
CRC n = 18 n = 50
 Sex (%)
  Male 8 (40.0) 30 (60.0)
  Female 12 (60.0) 20 (40.0)
  Age, mean (range) 63.1 (39–80) 61.9 (41–84)
 Stage (%)
  I 2 (10.0) 12 (24.0)
  II 12 (60.0) 17 (34.0)
  III 2 (10.0) 10 (20.0)
  IV 4 (20.0) 11 (22.0)