Table 4.
Multivariate Cox regression analysis of 30-day mortality after propensity score matching.
| Variable | HR | 95% CI | p-Value |
|---|---|---|---|
| Charlson comorbidity index < 2 points | 0.2 | 0.1–2.0 | 0.012 |
| Chronic kidney disease | 1.8 | 0.1–140.2 | 0.812 |
| COPD | 3 | 0.08–95 | 0.523 |
| Bacterial co-infection | 0.88 | 0.1–7.81 | 0.772 |
| Low-molecular-weight heparin | 0.2 | 0.013–2.2 | 0.174 |
| Macrolides | 23.3 | 0.273–20.8 | 0.17 |
| Antibiotics (excluding macrolides) | 1.54 | 0.18–13 | 0.822 |
| Steroids | 0.12 | 0.0–1.24 | 0.892 |
| No need for oxygen therapy | 2.12 | 0.234–8.6 | 0.782 |
| Low-flow oxygen therapy | 10.7 | 0.434–176.4 | 0.122 |
| Remdesivir | 0.87 | 0.12–1.2 | 0.184 |
| HFNC/NIV | 182 | 0.954–336.7 | 0.054 |
| Mechanical ventilation | 4.22 | 5.4–16.2 | 0.003 |
Legend. COPD, chronic obstructive pulmonary disease; HFNC, high-flow nasal cannula; NIV, non-invasive ventilation.