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Table 1 Clinicopathologic features of CRC patients in the training and validation cohorts

From: Prognostic value of carbonic anhydrase VII expression in colorectal carcinoma

Characteristics Training cohort (n = 228) Validation cohort (n = 151)
No. of patients (%) No. of patients (%)
Age (years)
  <60 71 (31.1) 43 (28.5)
  ≥60 157 (68.9) 108 (71.5)
Sex
  Female 95 (41.7) 61 (40.4)
  Male 133 (58.3) 90 (59.6)
Tumor location
  Rectum 169 (74.1) 81 (53.6)
  Colon 59 (25.9) 70 (46.4)
Differentiation grade
  Well/Moderate 171 (75.0) 114 (75.5)
  Poor 57 (25.0) 37 (24.5)
Tumor size (cm)
  <5 92 (40.4) 57 (37.7)
  ≥5 136 (59.6) 94 (62.3)
Local invasion
  T1-T2 44 (19.3) 14 (9.3)
  T3-T4 184 (80.7) 137 (90.7)
Lymph node metastasis
  N0 132 (57.9) 84 (55.6)
  N1 64 (28.1) 48 (31.8)
  N2 32 (14.0) 19 (12.6)
TNM stage
  I 36 (15.8) 10 (6.6)
  II 96 (42.1) 74 (49.0)
  III 96 (42.1) 67 (44.4)
Death
  No 124 (54.4) 82 (54.3)
  Yes 104 (45.6) 69 (45.7)