Table 2.
Univariable Cox regression analysis for CRC train cohort.
| Variables | β | HR | 95% CI | P value |
|---|---|---|---|---|
| PLNs | 0.42909 | 1.5359 | 1.4006–1.6841 | <0.0001 |
| DLNs | −0.04805 | 0.9531 | 0.9303–0.9765 | 0.0001 |
| NLNs | −0.08403 | 0.9194 | 0.8992–0.9400 | <0.0001 |
| LODDS | 0.39723 | 1.4877 | 1.3881–1.5945 | <0.0001 |
| Sex | 0.08991 | 1.0941 | 0.8591–1.3934 | 0.4662 |
| Age | 0.01137 | 1.0114 | 1.0011–1.0218 | 0.0292 |
| Height | −0.02199 | 0.9782 | 0.9639–0.9928 | 0.0036 |
| BMI | −0.02042 | 0.9798 | 0.9441–1.0169 | 0.2815 |
| CEA | 0.26796 | 1.3073 | 1.2369–1.3817 | <0.0001 |
| CA199 | 0.26568 | 1.3043 | 1.2295–1.3837 | <0.0001 |
| CA125 | 0.35689 | 1.4289 | 1.3074–1.5617 | <0.0001 |
| FVC | -0.00639 | 0.9936 | 0.9875–0.9998 | 0.0437 |
| T (T3-4 vs T1-2) | 1.08382 | 2.9559 | 2.0095–4.3481 | <0.0001 |
| N (N1-2 vs N0) | 1.29147 | 3.6381 | 2.7804–4.7605 | <0.0001 |
| M (M1 vs M0) | 1.62511 | 5.0790 | 2.955–8.7296 | <0.0001 |
CRC, colorectal cancer; β is calculated by univariable Cox regression analysis; PLNs, Positive lymph nodes; DLNs, dissected lymph nodes, NLNs, Negative lymph nodes; LODDS, log odds of positive lymph nodes scheme; BMI, body mass index; FVC (forced vital capacity), a common indicator for respiratory function.