Table 2.
Univariate and multivariate Cox regression analyses of overall survival in patients with colon cancer in TCGA.
| Variables | Total n = 428 n(%) | Univariate analysis | Multivariate analysis | ||
|---|---|---|---|---|---|
| HR (95% CI) | P | HR (95% CI) | P | ||
| Age | |||||
| <60 | 124 (29.0%) | 1 (reference) | |||
| ≥60 | 304 (71.0%) | 1.224 (0.762–1.966) | .404 | ||
| Sex | |||||
| Male | 230 (53.7%) | 1(reference) | |||
| Female | 198 (46.3%) | 0.830 (0.547–1.259) | 0.380 | ||
| TNM stage | |||||
| I+II | 235 (54.9%) | 1 (reference) | 1 (reference) | ||
| III+IV | 182 (42.5%) | 3.318 (2.102–5.238) | 0.000 | 3.018 (0.973–9.362) | 0.056 |
| Missing | 11 (2.6%) | ||||
| T stage | |||||
| T1+T2 | 84 (19.6%) | 1 (reference) | 1 (reference) | ||
| T3+T4 | 343 (80.1%) | 3.741 (1.515–9.241) | 0.005 | 4.555 (1.087–19.083) | 0.038 |
| Missing | 1 (0.2%) | ||||
| N stage | |||||
| N0 | 251 (58.6%) | 1 (reference) | 1 (reference) | ||
| N1+N2 | 177 (41.4%) | 2.824 (1.841–4.332) | 0.000 | 0.628 (0.239–1.502) | 0.345 |
| M stage | |||||
| M0 | 316 (73.8%) | 1 (reference) | 1 (reference) | ||
| M1 | 61 (14.3%) | 4.933 (3.101–7.848) | 0.000 | 2.652 (1.502–4.685) | 0.001 |
| Missing | 51 (11.9%) | ||||
Characteristics with significant P values after univariate analysis were screened by multivariate analysis. HR: hazard ratio; CI: confidence interval; TNM: tumor-node-metastasis.