Patient demographics and clinical data
| Total (N=166) | Died (n=47) | Survived (n=119) | P value* | |
| Female, n (%) | 60 (36.1) | 18 (38.3) | 42 (35.3) | 0.717 |
| Age, years (IQR) | 56 (45–64) | 61 (54–69) | 52 (42–63) | 0.0002 |
| Weight, kg (IQR) | 78 (70–90) | 78 (65–96) | 79 (72–90) | 0.659 |
| Height, cm (IQR) | 165 (158–170) | 165 (160–172) | 164 (580–170) | 0.578 |
| BMI (IQR) | 29 (25.4–33) | 28 (24–33) | 29 (27–32) | 0.302 |
| Obesity, n (%) | 77 (46.4) | 21 (44.7) | 56 (47.1) | 0.782 |
| Diabetes mellitus, n (%) | 42 (25.3) | 12 (25.5) | 30 (25.2) | 0.966 |
| Hypertension, n (%) | 49 (29.5) | 17 (36.2) | 32 (26.9) | 0.238 |
| Smoking, n (%) | 37 (22.3) | 10 (21.3) | 27 (22.7) | 0.844 |
| Immunosuppression, n (%) | 25 (15.1) | 6 (12.8) | 19 (16.0) | 0.603 |
| COPD, n (%) | 7 (4.2) | 4 (8.5) | 3 (2.5) | 0.084 |
| CKD, n (%) | 9 (5.4) | 2 (4.3) | 7 (5.9) | 0.677 |
| CAD, n (%) | 8 (4.8) | 4 (8.5) | 4 (3.4) | 0.163 |
| SpO2 % <88% with supplemental oxygen, n (%) | 156 (94.0) | 47 (100) | 109 (91.6) | 0.040 |
| IMV/CPAP, n (%) | 96 (57.8) | 33 (70.2) | 63 (52.9) | 0.042 |
| Positive troponin/CPK, n (%) | 77 (46.4) | 31 (66) | 46 (38.7) | 0.001 |
| Creatinine >1.5 mg/dL, n (%) | 25 (15.1) | 14 (29.8) | 11 (9.2) | 0.001 |
| WCC >10.0 cells × 10∧9 / L, n (%) | 94 (56.6) | 35 (74.5) | 59 (50) | 0.004 |
| Lymphocytes <800 cells/µL, n (%) | 113 (68.1) | 38 (80.9) | 75 (63) | 0.026 |
| Neutrophil to lymphocyte ratio >9.8, n (%) | 60 (36.1) | 27 (57.5) | 33 (27.7) | <0.0001 |
| Length of stay, days (IQR) | 15.5 (9–27) | 17 (11–27) | 13 (8–27) | 0.5408 |
*Comparisons were done between deaths and survivors. X2 was used to compare categorical variables. Mann-Whitney U test was used to compare continuous variables.
BMI, body mass index; CAD, coronary artery disease; CKD, chronic kidney disease; COPD, chronic obstructive pulmonary disease; CPAP, continuous positive airway pressure; CPK, creatine phosphokinase; IMV, invasive mechanical ventilation; SpO2, oxygen saturation; WCC, white cell count.