The baseline characteristics of survivors and non-survivors infected with severe covid-19
| Total (n=193) | Survivors (n=85) | Non-survivors (n=108) | P value* | |
| Number (%) | Number (%) | Number (%) | ||
| Age, median (IQR), years | 64 (49 to 73) | 46 (37 to 64) | 70 (62 to 78) | <0.001 |
| Sex | ||||
| Male | 114 (59.1) | 38 (44.7) | 76 (70.4) | <0.001 |
| Female | 79 (40.9) | 47 (55.3) | 32 (29.6) | |
| Diabetes mellitus | 48 (24.9) | 9 (10.6) | 39 (36.1) | <0.001 |
| Hypertension | 73 (37.8) | 16 (18.8) | 57 (52.8) | <0.001 |
| Cardiovascular disease | 31 (16.1) | 4 (4.7) | 27 (25.0) | <0.001 |
| Cerebrovascular disease | 8 (4.1) | 0 (0.0) | 8 (7.4) | 0.010 |
| Chronic kidney disease | 4 (2.1) | 1 (1.2) | 3 (2.8) | 0.790 |
| Chronic pulmonary disease | 14 (7.3) | 3 (3.5) | 11 (10.2) | 0.136 |
| Chronic liver disease | 1 (0.5) | 0 (0.0) | 1 (0.9) | 1.000 |
| ICU patients | 92 (47.7) | 1 (1.2) | 91 (84.3) | <0.001 |
| Glucocorticoid treatment | 136 (70.5) | 41 (48.2) | 95 (88.0) | <0.001 |
| Mechanical ventilation treatment† | 110 (57.0) | 5 (5.9) | 105 (97.2) | <0.001 |
| Length of hospital stay, median (IQR), days | 13 (7 to 16) | 15 (13 to 23) | 9 (5 to 13) | <0.001 |
*P values indicate differences between survivors and non-survivors. A value of p<0.05 was considered statistically significant.
†Non-invasive mechanical ventilation and invasive mechanical ventilation were included. Non-invasive mechanical ventilation included bilevel positive airway pressure ventilation or high-flow nasal cannula oxygen therapy.
ICU, intensive care unit.