Table 1.
Cox regression analysis for mortality rate in critical COVID-19 patients (n = 52).
| Variable | Univariate |
Multivariate |
||
|---|---|---|---|---|
| HR (95% CI) | p | HR (95% CI) | p | |
| Mortality rate | ||||
| Age (years) | 1.04 (1.00–1.08) | 0.006 | 0.99 (0.97–1.03) | 0.959 |
| Sex | 0.87 (0.46–1.67) | 0.678 | – | – |
| Days on MV | 0.78 (0.72–0.85) | 0.000 | 0.75 (0.69–0.83) | 0.000 |
| SAPS3 | 1.03 (1.01–1.06) | 0.037 | 1.02 (0.99–1.05) | 0.224 |
| Energy intake (kcal/IBW/day) | 0.94 (0.88–1.00) | 0.092 | – | – |
| Protein >0.8 g/IBW/day | 0.28 (0.11–0.74) | 0.010 | 0.32 (0.10–0.99) | 0.049 |
MV: mechanical ventilation; SAPS3: Simplified Acute Physiology Score III; IBW: ideal body weight; HR: Hazard ratios; CI: confidence interval.