Table 3.
Mortality in the ICU: Cox regression
| Variables | HR | IC | P values |
|---|---|---|---|
| General characteristics | |||
| Age | 1.03 | 1.02‒1.05 | <0.001 |
| Comorbidities | |||
| Chronic lung disease | 1.3 | 0.9-1.8 | 0.2 |
| Chronic heart failure | 1.4 | 0.9-2.1 | 0.13 |
| Chronic kidney injury | 1.1 | 0.8‒1.8 | 0.5 |
| Diabetes | 1.1 | 0.9‒1.4 | 0.4 |
| Ischemic heart disease | 1.5 | 1.1‒2.1 | 0.01 |
| Hypertension | 1.1 | 0.9‒1.4 | 0.5 |
| Immunosuppression | 1.3 | 0.9‒1.8 | 0.1 |
| Severity of illness | |||
| APACHE II | 1 | 0-9‒1.03 | 0.3 |
| SOFA | 1.1 | 1.02‒1.1 | 0.004 |
| Shock at admission | 0.88 | 0.7–1.2 | 0.4 |
| PaO2/FiO2 ratio | 0.99 | 0.99–0.99 | <0.001 |
| Laboratory variables | |||
| LDH (U/L) | 1 | 0.99–1 | 0.3 |
| D-dimer (ng/ml) | 1 | 1–1 | 0.2 |
| Lactate (mmol/L) | 1 | 0.99–1.002 | 0.1 |
| Creatinine (mg/dL) | 1 | 0.9.1.1 | 0.8 |
| Intubation timing | |||
| Early intubation | 0.6 | 0.5‒0.8 | <0.001 |
APACHE Physiology and Chronic Health Evaluation, SOFA Sequential Organ Failure Assessment, PaO2/FiO2 Arterial oxygen pressure/ inspired oxygen fraction, LDH Lactate dehydrogenase