Table 3.
Univariate and multivariate Cox regression analyses of the 28-day mortality
| Variables | Univariate Cox regression | Multivariate Cox regression | ||||
|---|---|---|---|---|---|---|
| HR | 95% CI | p | HR | 95% CI | p | |
| Pcv-aCO2 | 4.90 | 2.66-9.05 | <0.001 | 3.10 | 1.43-6.74 | 0.004 |
| WBC | 3.18 | 0.77-13.07 | 0.108 | |||
| Platele | 3.90 | 2.16-7.03 | <0.001 | 2.08 | 1.08-3.98 | 0.028 |
| PCT | 2.87 | 1.62-5.07 | <0.001 | 1.39 | 0.72-2.69 | 0.327 |
| CRP | 1.40 | 0.81-2.43 | 0.229 | |||
| ScVO2 | 2.04 | 1.17-3.53 | 0.011 | 0.72 | 0.38-1.36 | 0. 311 |
| Lactate | 2.53 | 1.46-4.45 | 0.001 | 1.57 | 0.85-2.88 | 0.147 |
| SOFA | 3.25 | 1.81-5.86 | <0.001 | 1.86 | 0.91-3.82 | 0.89 |
| APACHE Ⅱ | 2.61 | 1.44-4.75 | 0.002 | 1.28 | 0.62-2.64 | 0.507 |
Pcv-aCO2, central venous-to-arterial carbon dioxide difference; WBC, white blood cell; PCT, procalcitonin; CRP, C-reaction protein; ScVO2, central venous oxygen saturation; SOFA, Sequential Organ Failure Assessment; APACHE Ⅱ, Acute Physiology And Chronic Health Evaluation II.