Table 4. Univariate analysis of variables associated with mortality in COVID-19 patients.
*p<0.05 was considered significant.
AST: aspartate transaminase; ALT: alanine transaminase; APTT: activated partial thromboplastin time; CRP: C-reactive protein; PT: prothrombin time; WBC: white blood cell
| Variables | Odds ratio | p-value | 95% confidence interval | |
| Age | ||||
| <40 | 1 | |||
| >40 | 6.38 | 0.000 | 4.818-8.466 | |
| Sex | ||||
| Male | 1 | |||
| Female | 0.50 | 0.000 | 0.401-0.612 | |
| Laboratory investigations | ||||
| Hemoglobin | ||||
| 11-14 | 1 | |||
| <11 | 0.94 | 0.961 | 0.807-1.226 | |
| >11 | 0.80 | 0.132 | 0.607-1.067 | |
| WBC (×103/uL) | ||||
| 5-11 | 1 | |||
| <5 | 0.71 | 0.080 | 0.495-1.040 | |
| >11 | 3.90 | 0.000 | 3.206-4.760 | |
| Lymphocyte | ||||
| 20%-40% | 1 | |||
| <20% | 11.17 | 0.000 | 11.101-21.469 | |
| >40% | 0.55 | 0.180 | 0.233-1.310 | |
| Neutrophil | ||||
| 40%-60% | 1 | |||
| <40% | 3.39 | 0.006 | 1.424-8.091 | |
| >60% | 19.84 | 0.000 | 11.803-33.367 | |
| N/L ratio | ||||
| <3.5 | 1 | |||
| >3.5 | 1.31 | 0.720 | 0.297-5.791 | |
| Platelet (×103/uL) | ||||
| 150-450 | 1 | |||
| <150 | 1.48 | 0.000 | 1.237-1.771 | |
| >450 | 1.18 | 0.546 | 0.685-2.044 | |
| AST | ||||
| <50 | 1 | |||
| >50 | 5.10 | 0.000 | 4.185-6.223 | |
| ALT | ||||
| <50 | 1 | |||
| >50 | 2.25 | 0.000 | 1.829-2.769 | |
| APTT | ||||
| <33 | 1 | |||
| >33 | 3.71 | 0.000 | 2.800-4.923 | |
| Creatinine | ||||
| <1.3 | 1 | |||
| >1.3 | 3.07 | 0.000 | 2.562-3.697 | |
| CRP | ||||
| <24 | 1 | |||
| >24 | 8.311 | 0.000 | 3.838-17.994 | |
| Ferritin | ||||
| <500 | 1 | |||
| 500-1,000 | 11.40 | 0.000 | 6.659-19.537 | |
| >1,000 | 14.88 | 0.000 | 9.583-23.118 | |
| Comorbidities | ||||
| Hypertension | 2.85 | 0.000 | 2.394-3.413 | |
| Chronic cardiac diseases | 3.09 | 0.000 | 2.357-4.066 | |
| Diabetes | 3.05 | 0.000 | 2.554-3.651 | |
| Chronic lung disease | 3.00 | 0.000 | 1.796-5.009 | |
| Chronic kidney disease | 4.54 | 0.000 | 3.423-6.034 | |
| Liver diseases | 4.31 | 0.000 | 2.409-7.741 | |
| Chronic neurological disorder | 2.70 | 0.001 | 1.478-4.941 | |
| Obesity | 4.91 | 0.002 | 1.810-13.338 | |
| Thyroid disorder | 0.88 | 0.540 | 0.587-1.321 | |
| Cancer | 1.44 | 0.224 | 0.798-2.610 |