Table 2. Logistic regression analysis of the risk factors for lymph node metastasis.
| Factors | Univariate analysis | Multivariate analysis | ||
|---|---|---|---|---|
| OR(95%CI) | P value | OR(95%CI) | P value | |
| Gender | 1.280(0.850-1.928) | 0.237 | - | - |
| Age | 1.239(0.813-1.888) | 0.319 | - | - |
| Tumor location | 1.465(0.967-2.219) | 0.062 | - | - |
| Tumor size | 2.392(1.765-4.234) | <0.001 | 1.254(1.011-1.981) | 0.011 |
| Count of lymph node | 1.171(0.989-1.828) | 0.073 | - | - |
| Macroscopic type | 1.326(1.183-1.818) | 0.021 | 1.412(0.853-1.729) | 0.181 |
| Differentiation | 3.432(2.900-4.963) | 0.011 | 2.832(2.090-3.709) | 0.027 |
| Ulcerative findings | 2.124(1.975-2.721) | 0.007 | 1.656(1.007-2.092) | 0.005 |
| Lymphovascular invasion | 2.380(1.569-2.763) | 0.006 | 1.775(1.103-2.121) | 0.023 |
| Depth of invasion | 2.931(1.634-3.921) | <0.001 | 2.320(1.923-3.112) | <0.001 |
| Combined tumor markers | 1.975(1.665-2.240) | 0.001 | 1.231(1.015-1.675) | 0.034 |
OR: odds ratio; CI: confidence interval