Table 1.
Patient characteristics.
| Variable | Values | Missing |
|---|---|---|
| Age, years | 60.0 (53.1; 70.0) | 0 |
| Female sex, n (%) | 46 (24.0) | 0 |
| Ethnicity, n (%) | ||
|
171 (89.1) | 0 |
|
21 (10.9) | |
| BMI, kg/m2 | 26.7 (24.2; 29.4) | 0 |
| Normal weight (18.5–24.9 kg/m2) | 61 (31.8) | |
| Overweight (25–29.9 kg/m2) | 90 (46.9) | |
| Obesity (≥30 kg/m2) | 41 (21.3) | |
| PaO2/FiO2 | 281.4 (211.9; 330.4) | 12 |
| ARDS,a n (%) | 105 (59.0) | 12 |
| CRP, mg/dL | 75.7 (38.0; 135.9) | 1 |
| Plasma glucose, mg/dL | 109 (98.0; 129.0) | 7 |
| Haemoglobin, g/dL | 14.0 (12.6, 15.1) | 3 |
| Neutrophil count, ×109/L | 4.8 (3.4; 7.6) | 7 |
| Lymphocyte count, ×109/L | 0.9 (0.7, 1.2) | 7 |
| Platelets, ×109/L | 186 (149.5, 246.0) | 3 |
| eGFR, ml/min/1.73/m2 | 79.7 (62.1; 92.5) | 11 |
| <60 ml/min/1.73/m2 | 37 (20.4) | |
| Arterial hypertension, n (%) | 75 (39.5) | 2 |
| Diabetes mellitus, n (%) | 31 (16.2) | 1 |
| Dyslipidaemia, n (%) | 21 (10.9) | 0 |
| Coronary artery disease, n (%) | 13 (6.8) | 2 |
| Chronic kidney disease, n (%) | 11 (5.8) | 2 |
| Chronic obstructive pulmonary disease, n (%) | 6 (3.2) | 2 |
| Malignancy, n (%) | 7 (3.7) | 2 |
| Outcome, n (%) | ||
|
166 (86.5) | 0 |
|
26 (13.5) | |
| Admitted to ICU, n (%) | 44 (22.9) | 0 |
Continuous variables are expressed as median (25th and 75th percentile). Categorical variables are expressed as absolute values (%). ARDS, acute respiratory distress syndrome; BMI, body mass index; CRP, C-reactive protein; eGFR, estimated glomerular filtration rate, calculated with the CKD-EPI equation; ICU, intensive care unit; PaO2/FiO2, arterial partial pressure of oxygen measured on arterial blood gas analysis/fraction of inspired oxygen.
a
ARDS defined according to the Berlin criteria [22]. Percentages are calculated on the actual number of cases.