Table 3.
Stepwise logistic regression analysis of EMVI prediction.
| Variable | Univariate logistic regression | Multivariate logistic regression | ||
|---|---|---|---|---|
| OR (95%CI) | P value | OR (95%CI) | P value | |
| Gender (Male vs Female) | 0.334 (0.123-1.721) | 0.562 | NA | NA |
| Age (per 1 increase) | 0.467 (0.282-1.515) | 0.628 | NA | NA |
| mrEMVI (Negative vs Positive) | 7.317 (3.086-17.35) | <0.001* | 7.351(3.132-17.256 | <0.001* |
| Location (Low vs Mid) | 2.443 (1.227-5.872) | 0.434 | NA | NA |
| Location (Low vs High) | 3.646 (1.643-6.563) | 0.642 | NA | NA |
| MRI LN status (N0 vs N1-2) | 3.284 (2.341-6.732) | 0.672 | 16.251 (6.549-40.326) | <0.0001* |
| CEA (per 1 increase) | 1.557 (0.382-6.337) | 0.537 | NA | NA |
| Degree of pathological differentiation (Low vs Medium) | 2.614 (1.475-14.37) | 0.025* | 2.665 (1.533-15.473) | 0.014* |
| Degree of pathological differentiation (Low vs High) | 0.935 (0.203-4.303) | 0.031* | 1.043 (0.382-5.482) | 0.009* |
| Radiomics signature | 1.463 (1.048-2.042 | 0.002* | 1.535 (1.105-2.131) | 0.01* |
NA, not available as the variable, was not included in the multivariate logistic regression. mrEMVI, magnetic resonance extramural venous invasion; LN, lymph node. *P < 0.05.