Table 3 Univariable Cox Regression Model Results.
Variable | Category or Units | N | Hazard Ratio (95% C.I.) | P-Value |
|---|---|---|---|---|
Gas | Nitrogen | 107 | 1.0 | 0.56 |
| Â | Nitrous Oxide | 97 | 1.14 (0.73, 1.79) | Â |
Age | 10 Years | 204 | 1.12 (0.91, 1.36) | 0.29 |
Gender | Male | 125 | 1.0 | 0.29 |
| Â | Female | 79 | 1.27 (0.81, 2.00) | Â |
Hospital | AKH | 181 | 1.0 | 0.07 |
| Â | SMZO | 23 | 0.91 (0.45, 1.83) | Â |
Number of Nodes examined | 1 Node | 194 | 1.00 (0.90, 1.11) | 0.98 |
Number of involved Nodes | 1 Node | 194 | 1.17 (1.12, 1.22) | < 0.001 |
Tumor Grade | G1 | 8 | 1.0 | 0.06 |
| Â | G2 | 142 | 1.35 (0.33, 5.58) | Â |
| Â | G3 | 43 | 2.60 (0.61, 11.1) | Â |
| Â | G4 | 1 | -- | Â |
Treatment of Tumor | None | 86 | 1.0 | 0.01 |
| Â | Chemotherapy | 60 | 1.84 (1.08, 3.16) | Â |
| Â | Radiation | 24 | 0.82 (0.33, 2.00) | Â |
| Â | Both | 28 | 2.39 (1.27, 4.50) | Â |
Log2(Preoperative CEA) | 1 (Doubling) | 144 | 1.32 (1.21, 1.44) | < 0.001 |
Site | Ascending | 28 | 1.0 | 0.052 |
| Â | Sigmoid | 58 | 2.99 (1.24, 7.25) | Â |
| Â | Rectum | 89 | 2.23 (0.94, 5.32) | Â |
| Â | Cecum | 23 | 1.36 (0.41, 4.45) | Â |
| Â | Multiple Colon Cancer | 2 | -- | Â |
Dukes Classification | A | 33 | 1.0 | < 0.001 |
| Â | B | 58 | 1.27 (0.38, 4.21) | Â |
| Â | C | 71 | 5.23 (1.85, 14.7) | Â |
| Â | D | 31 | 16.5 (5.72, 47.7) | Â |
Dissemination | No | 153 | 1.0 | < 0.001 |
| Â | Yes | 48 | 7.82 (4.89, 12.5) | Â |
Adjacent Organ Invasion | No | 142 | 1.0 | < 0.001 |
| Â | Yes | 59 | 2.28 (1.44, 3.61) | Â |
Neural Invasion | No | 180 | 1.0 | < 0.001 |
| Â | Yes | 19 | 3.26 (1.84, 5.77) | Â |
Vessel Invasion | No | 151 | 1.0 | < 0.001 |
| Â | Yes | 48 | 3.37 (2.11, 5.36) | Â |