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Table 1 The demographic and clinicopathological characteristics of patients

From: Young age increases the risk for lymph node metastasis in patients with early Colon Cancer

  Lymph nodes metastasis P value
Negative Positive
Counts Percentage Counts Percentage
Gender
 Male 17,215 84.8% 3077 15.2%  
 Female 17,917 84.5% 3281 15.5% 0.37
Age (year)
  ≤ 40 414 69.9% 178 30.1%  
 41–50 1913 77.9% 543 22.1%  
 51–60 5470 81.1% 1273 18.9%  
 61–70 8695 84.3% 1616 15.7%  
 71–80 10,753 86.5% 1675 13.5%  
  ≥ 81 7887 88.0% 1073 12.0% < 0.01a
Race
 White 28,841 85.4% 4950 14.6%  
 Black 3747 81.8% 831 18.2%  
 Others 2544 81.5% 577 18.5% < 0.01
Size (mm)
  ≤ 10 5426 89.0% 668 11.0%  
 11–20 8180 85.5% 1390 14.5%  
 21–30 8320 84.1% 1570 15.9%  
 31–40 5913 83.2% 1190 16.8%  
 41–50 3611 83.0% 742 17.0%  
  ≥ 51 3682 82.2% 798 17.8% < 0.01
Mucinous
 Non-mucin 32,766 84.8% 5853 15.2%  
 Mucin 2366 82.4% 505 17.6% 0.01
Grade
 Well 5782 90.5% 604 9.5%  
 Moderate 26,388 85.0% 4667 15.0%  
 Poor 2677 73.1% 985 26.9%  
 Undifferentiated 285 73.6% 102 26.4% < 0.01
Depth of invasion
 T1 13,694 88.7% 1743 11.3%  
 T2 21,438 82.3% 4615 17.7% < 0.01
  1. aThere were significant differences of the adjacent age groups