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Table 2 Postoperative pathological routine indicators

From: Analysis of risk factors and prognosis of 253 lymph node metastasis in colorectal cancer patients

  253 lymph node negative group (n = 381) 253 lymph node positive group (n = 10) P
Tumor location    0.087
 Rectum 254 (66.6%) 3 (30.0%)  
 Sigmoid colon 94 (24.7%) 6 (60.0%)  
 Rectum sigmoid colon junction 9 (2.4%) 1 (10.0%)  
 Others 24 (6.3%) 0 (0.0%)  
Tumor max diameter: cm 3.8 ± 1.8 5.0 ± 2.0 0.034
Differentiation    0.011
 Well 3 (0.9%) 0 (0.0%)  
 Moderately 284 (83.8%) 4 (44.4%)  
 Poorly 52 (15.3%) 5 (55.6%)  
Histopathological type    0.016
 Adenocarcinoma 329 (91.9%) 8 (80.0%)  
 Mucinous adenocarcinoma 11 (3.1%) 0 (0.0%)  
 Signet-ring cell carcinoma 3 (0.8%) 1 (10.0%)  
 Others 15(4.2%) 1 (10.0%)  
T stage    0.118
 Tis 2 (0.6%) 0 (0.0%)  
 T1 21 (5.8%) 0 (0.0%)  
 T2 57 (15.8%) 1 (10.0%)  
 T3 230 (63.7%) 6 (60.0%)  
 T4a 48 (13.3%) 2 (20.0%)  
 T4b 3 (0.8%) 1 (10.0%)  
N stage    < 0.001
 N0 230 (61.5%) 0 (0.0%)  
 N1a 47 (12.6%) 2 (20.0%)  
 N1b 43 (11.5%) 1 (10.0%)  
 N2a 29 (7.8%) 3 (30.0%)  
 N2b 25 (6.7%) 4 (40.0%)  
M Stage    < 0.001
 M0 367 (98.1%) 7 (77.8%)  
 M1 6 (1.6%) 1 (11.1%)  
 M1b 1 (0.3%) 0 (0.0%)  
 M1c 0 (0.0%) 1 (11.1%)  
TNM stage    0.049
 I 23 (6.4%) 0 (0.0%)  
 II 130 (36.1%) 0 (0.0%)  
III 143 (39.7%) 6 (60.0%)  
 IV 64 (17.8%) 4 (40.0%)  
Nerve invasion    0.209
 No 342 (91.4%) 8 (80.0%)  
 Yes 32 (8.6%) 2 (20.0%)  
Vessel carcinoma embolus    0.001
 No 338 (90.9%) 6 (60.0%)  
 Yes 34 (9.1%) 4 (40.0%)  
Cancerous node    0.134
 No 323 (86.6%) 7 (70.0%)  
 Yes 50 (13.4%) 3 (30.0%)  
Number of harvested lymph nodes 14.4 ± 4.9 18.0 ± 7.1 0.027
Number of metastatic lymph nodes 0.0 (0.0–2.0) 4.0 (2.5–7.8) < 0.001
Number of 253 lymph nodes 1.0 (0.0–3.0) 2.0 (1.2-4.0) 0.036