Patient characteristics
| ICU | Non-ICU | P value | |
| Number of patients (%) | 197 (13.1) | 1304 (86.9) | |
| Age, years, median (IQR) | 67.0 (60.0–74.0) | 73.0 (62.1–83.9) | <0.01 |
| Body mass index in kg/m2, mean (SD) | 29.2 (5.9) | 27.9 (5.7) | 0.043 |
| Male sex n (%) | 149 (75.6) | 756 (50.4) | <0.01 |
| Comorbidities | ICU | Non-ICU | |
| Chronic cardiac disease | 53 (26.9) | 451 (34.9) | 0.044 |
| Hypertension | 94 (47.7) | 627 (48.5) | 0.069 |
| Chronic pulmonary disease | 28 (14.2) | 282 (21.8) | 0.041 |
| Asthma | 24 (12.2) | 131 (10.1) | 0.440 |
| Chronic kidney disease | 22 (11.2) | 170 (11.4) | 0.714 |
| Diabetes mellitus without complications | 39 (19.8) | 239 (18.5) | 0.650 |
| Diabetes mellitus with complications | 17 (8.6) | 106 (8.2) | 0.872 |
| Active smoker | 87 (44.4) | 445 (34.5) | 0.033 |
| Alcohol abuse | 7 (3.6) | 31 (2.4) | 0.227 |
| Vital parameters | ICU, mean (SD) | Non-ICU, mean (SD) | P value |
| Oxygen saturation, % | 86.7 (10.7) | 93.7 (4.9) | <0.001 |
| Respiratory rate (breaths/min) | 28.9 (9.3) | 22.4 (6.5) | <0.001 |
| Systolic blood pressure (mm Hg) | 136.0 (26.2) | 137.0 (23.9) | 0.385 |
| Heart rate (beats/min) | 99.3 (20.8) | 91.0 (18.9) | 0.106 |
| GCS Score | 14.1 (2.0) | 14.8 (1.0) | <0.001 |
| Body temperature (°C) | 37.9 (1.1) | 37.8 (1.1) | 0.715 |
ICU, intensive care unit.