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Table 1 The clinicopathologic characteristics of 1167 stage I-III colorectal cancer patients following radical resection

From: Factors affecting number of lymph nodes harvested and the impact of examining a minimum of 12 lymph nodes in stage I-III colorectal cancer patients: a retrospective single institution cohort study of 1167 consecutive patients

Variables Number (%)
Gender  
 Male/Female 691 (59.2)/476 (40.8)
Age (y/o)  
65/<65 610 (52.3)/557 (47.7)
Maximum size (cm)  
5/<5 414 (35.5)/753 (64.5)
Tumor location  
 Colon/Rectum 797 (68.3)/370 (31.7)
Tumor stage  
 I/II/III 302 (25.9)/425 (36.4)/440 (37.7)
T stage  
 T1/T2/T3/T4 121 (10.4)/239 (20.5)/723 (61.9)/84 (7.2)
Harvested LN Noa  
12/<12 807 (69.2)/360 (30.8)
Vascular invasion  
 Yes/No 261 (22.4)/906 (77.6)
Perineural invasion  
 Yes/No 303 (26.0)/864 (74.0)
Tumor grade  
 WD/MD/PDb 96 (8.3)/969 (83.0)/102 (8.7)
Tumor histology  
 A/M/Sc 1097 (94.0)/66 (5.7)/4 (0.3)
Preoperative CEAd (ng/ml)  
5/<5 441 (35.2)/756 (64.8)
Type of surgery  
 Open/Laparoscopic 967 (82.9)/200 (17.1)
  1. a LN No numbers of lymph nodes
  2. b WD well differentiated, MD moderately differentiated, PD poorly differentiated
  3. c A adenocarcinoma, M mucinous carcinoma, S signet-ring cell carcinoma
  4. d CEA carcinoembryonic antigen