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. 2019 Nov;7(21):606. doi: 10.21037/atm.2019.09.20

Table 1. Clinicopathologic features of patients involved in this study.

Characteristics Total (n=310), n (%)
Age (years)
   ≤59 161 (51.9)
   >59 149 (48.1)
Sex
   Female 118 (38.1)
   Male 192 (61.9)
Primary tumor site
   Colon 203 (65.5)
   Rectum 107 (34.5)
Primary tumor size (cm)
   ≤4.5 169 (54.5)
   >4.5 141 (45.5)
T category
   1 8 (2.6)
   2 52 (16.8)
   3 96 (31.0)
   4 154 (49.7)
N category
   0 141 (45.5)
   1 118 (38.1)
   2 51 (16.5)
M category
   0 170 (54.8)
   1 140 (45.2)
TNM stage
   II 101 (32.6)
   III 69 (22.2)
   IV 140 (45.2)
Histological grade
   Well/moderate 260 (83.9)
   Poor 50 (16.1)
CEA level (ng/mL)
   ≤5 128 (41.3)
   >5 174 (56.1)
   Not available 8 (2.6)
CA19-9 level (U/mL)
   ≤35 211 (68.1)
   >35 87 (28.1)
   Not available 12 (3.9)

CEA, carcinoembryonic antigen before primary tumor resection; CA19-9, cancer antigen 19-9 before primary tumor resection.