Variables | Univariate analysis | Multivariable analysis | ||
---|---|---|---|---|
OR (95% CI) | P | OR (95% CI) | P | |
Age | 0.985 (0.968, 1.003) | 0.104 | Â | Â |
Sex | Â | Â | Â | Â |
 Male | Ref. |  |  |  |
 Female | 1.023 (0.659, 1.587) | 0.920 |  |  |
Primary tumor location | Â | Â | Â | Â |
 Left-sided | Ref. |  |  |  |
 Right-sided | 1.042 (0.656, 1.655) | 0.860 |  |  |
Preoperative CEA level | Â | Â | Â | Â |
 Normal | Ref. |  | Ref. |  |
 Elevated | 2.105 (1.342, 3.302) | 0.001 | 2.109 (1.010, 4.405) | 0.047 |
Preoperative CA19-9 level | Â | Â | Â | Â |
 Normal | Ref. |  |  |  |
 Elevated | 1.417 (0.851, 2.358) | 0.180 |  |  |
Lymphadenectasis on CT | Â | Â | Â | Â |
 < 10 mm | Ref. |  | Ref. |  |
 ≥ 10 mm | 4.381 (2.736, 7.015) |  < 0.001 | 3.816 (1.834, 7.943) |  < 0.001 |
Tumor differentiation | Â | Â | Â | Â |
 Well or moderately | Ref. |  |  |  |
 Poorly or undifferentiated | 1.583 (0.918, 2.732) | 0.099 | NA | NA |
VELIPI | Â | Â | Â | Â |
 No | Ref. |  | Ref. |  |
 Yes | 3.074 (1.949, 4.848) |  < 0.001 | 2.198 (1.067, 4.572) | 0.033 |
Tumor size, cm | Â | Â | Â | Â |
 < 4 | Ref. |  |  |  |
 ≥ 4 | 1.182 (0.762, 1.833) | 0.455 |  |  |
pT stage | Â | Â | Â | Â |
 pTis-T2 | Ref. |  | Ref. |  |
 pT3 | 2.262 (1.208, 4.237) | 0.011 | 3.239 (1.156, 9.080) | 0.025 |
 pT4 | 4.135 (2.153, 7.941) |  < 0.001 | 4.162 (1.396, 12.411) | 0.011 |
PCS | 7.943 (4.521, 13.955) |  < 0.001 | 8.014 (4.266, 12.140) |  < 0.001 |