Table 3.
Cox regression analysis showing the hazard ratios in the univariate and multivariate models for the different variables in COVID-19 patients.
| Variable | Univariate |
Multivariate |
||||
|---|---|---|---|---|---|---|
| HR* | 95% CI | P | HR* | 95% CI | P | |
| Sex | 0.9 | 0.4-2 | >0.05 | 0.8 | 0.3-1.9 | >0.05 |
| Age (y) | 1 | 0.7-1.4 | >0.05 | 1 | 0.99-1.1 | >0.05 |
| SARS-CoV-2 | 1.5 | 1.1-2.1 | <0.05† | 2.5 | 0.9-2.8 | >0.05 |
| DNR status | 2.2 | 1.5-3.2 | <0.001† | 2.2 | 1.4-3.5 | <0.001† |
| COVID-19 clinical manifestations on admission | 1 | 0.8-1.2 | >0.05 | 1 | 0.7-1.3 | >0.05 |
| Comorbidities | 1.2 | 0.9-1.5 | >0.05 | 1.1 | 0.8-1.4 | >0.05 |
DNR, do-not-resuscitate; HR, hazard ratio.
⁎
HR >1 in Cox regression is interpreted as an increase in the hazard of dying from COVID-19 in DNR patients compared with non-DNR patients.
†
P < 0.05 is considered significant (in bold).