| Case (n) | IMA-LN | χ2 value | P value | |
---|---|---|---|---|---|
Metastasis (n) | Metastasis rate (%) | ||||
Gender | |||||
 Male | 296 | 16 | 5.4 | 0.445 | 0.505 |
 Female | 189 | 13 | 6.9 | ||
Age (years) | |||||
 ≤60 | 171 | 10 | 5.8 | 0.008 | 0.929 |
 >60 | 314 | 19 | 6.1 | ||
BMI (kg/m2) | |||||
 ≤25 | 298 | 19 | 6.4 | 0.216 | 0.642 |
 >25 | 187 | 10 | 5.3 | ||
Distance from anal verge(cm) | |||||
 ≤10 | 322 | 13 | 3.7 | 6.428 | 0.011* |
 >10 | 163 | 16 | 9.2 | ||
CEA (ng/ml) | |||||
 ≤5 | 202 | 5 | 2.5 | 7.561 | 0.006* |
 >5 | 283 | 24 | 8.5 | ||
CA19-9 (U/ml) | |||||
 ≤27 | 213 | 10 | 4.7 | 1.115 | 0.291 |
 >27 | 272 | 19 | 7.0 | ||
CA72-4 (U/ml) | |||||
 ≤6.9 | 304 | 17 | 5.6 | 0.217 | 0.641 |
 >6.9 | 181 | 12 | 6.6 |