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Table 1 Univariate comparison of clinical and pathologic features in cases of colorectal cancer treated surgically on electively and as an emergency

From: Clinicopathological analysis of colorectal cancer: a comparison between emergency and elective surgical cases

Feature Elective
(n = 845)
Emergency
(n = 129)
OR/diffa P-value for OR/diffa
> 1 tumors, % 4.5 11.7 2.816 0.001b
Mean tumor diameter, mm 47 48 0.97 0.68
AJCC stage, %     
 I 21.4 3.9 RC  
 II 39.1 31.2 4.382 0.002b
 III 35.1 57.0 8.900 <0.0001b
 IV 4.3 7.8 9.889 <0.0001b
 T, %     
 1 7.7 2.3 RC  
 2 20.0 4.7 0.771 0.72
 3 60.5 68.8 3.747 0.03b
 4 11.7 24.2 6.818 0.002 b
N, %     
 0 61.5 36.0 RC  
 1 19.7 33.6 2.912 <0.0001b
 2 or 3 18.8 30.4 2.757 <0.0001 b
Proportion of poorly differentiated tumors, %c 10.9 14.7 1.412 0.21
Mucin production, %     
 0% 62.4 56.6 RC  
 0 to 50% 24.2 25.6 1.168 0.49
 >50%, mucinous type 13.4 17.8 1.468 0.14
Mucin type, if mucinous, %     
 Extracellular 88.3 69.8 RC  
Signet-ring-type component 11.7 30.2 3.267 0.001b
Crohn-like lymphocytic reaction, % 59.8 69.8 1.554 0.03b
TILs     
 ≤30/10 HPFs 80.7 88.4 RC  
 >30/10 HPFs 19.3 11.6 0.551 0.04b
Desmoplasia,d % 82.6 90.9 2.110 0.03b
Necrosis,d % 66.3 61.7 0.816 0.33
Vascular invasion, % 22.2 37.3 2.086 <0.0001b
Perineural invasion, % 16.4 28.6 2.032 0.001b
Medullary type, % 4.8 3.2 0.646 0.41
Budding,d % 40.0 45.5 1.248 0.28
Tumor margin, %     
 Circumscribed 54.5 41.9 RC  
 Infiltrative 45.5 58.1 1.666 0.008b
  1. AJCC American Joint Committee on Cancer, HPF high-power field, N node, RC reference category, T tumor, TILs Tumor-infiltrating lymphocytes.
  2. aEmergency versus elective. Odds ratio except for tumor diameter where difference (mm) is stated.
  3. bSignificantly different.
  4. cIn major tumor component.
  5. dRectal cancers were omitted from the analysis of necrosis, desmoplasia, and budding because of preoperative radiotherapy.