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
| Â | 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 |