Variables | OS | DFS | ||
---|---|---|---|---|
Hazard ratio (95% CI) | P value | Hazard ratio (95% CI) | P value | |
Age (year) | ||||
≥ 65 versus < 65 | 1.513 (0.823, 2.782) | 0.183 | 0.910 (0.516, 1.602) | 0.743 |
Gender | ||||
Male versus female | 0.870 (0.462, 1.637) | 0.666 | 1.000 (0.563, 1.776) | 0.999 |
BMI | 0.030* | 0.833 | ||
18.5–23.9 vs. < 18.5 | 0.374 (0.160, 0.876) | 0.024* | 0.710 (0.272, 1.856) | 0.485 |
24–26.9 vs. < 18.5 | 0.260 (0.093, 0.724) | 0.010* | 0.757 (0.269, 2.132) | 0.598 |
≥ 27 vs. < 18.5 | 0.191 (0.049, 0.742) | 0.017* | 0.563 (0.162, 1.948) | 0.364 |
Tumor size(cm) | ||||
≥ 5 versus < 5 | 0.624 (0.328, 1.187) | 0.151 | 1.260 (0.708, 2.242) | 0.433 |
Tumor location | ||||
Colon versus rectum | 1.840 (0.987, 3.432) | 0.055 | 1.785 (1.003, 3.179) | 0.049* |
Tumor differentiation | ||||
Well and moderate versus poor | 0.244 (0.131, 0.454) | 0.013* | 0.337 (0.186, 0.611) | 0.000* |
Depth of invasion | 0.002* | 0.003* | ||
T3 versus Tis–T2 | 1.984 (0.693, 5.681) | 0.202 | 5.902 (1.419, 24.556) | 0.015* |
T4 versus Tis–T2 | 5.706 (1.815, 17.946) | 0.003* | 12.019 (2.656, 54.385) | 0.001* |
Lymph node metastasis | ||||
Yes versus no | 2.021 (1.074, 3.805) | 0.029* | 3.381 (1.816, 6.293) | 0.000* |
Venous permeation | ||||
Yes versus no | 2.544 (1.352, 4.786) | 0.004* | 3.038 (1.680, 5.497) | 0.000* |
Perineural invasion | ||||
Yes versus no | 2.572 (1.377, 4.805) | 0.003* | 2.565 (1431, 4.598) | 0.002* |
Adjuvant therapy | ||||
Yes versus no | 0.285 (0.147, 0.552) | 0.000* | 0.569 (0.323, 1.004) | 0.052 |
Serum glutamine | ||||
≤ 392.83versus > 392.83 | 1.998 (1.090, 3.663) | 0.025* | 2.464 (1.402, 4.330) | 0.002 |