| Clinical Variable | Normal Range | Units |
|---|---|---|
| Demographics | ||
| Health system | ||
| Hospital | ||
| Age in years | years | |
| Sex | ||
| Race | ||
| Comorbidities | ||
| COPD | ||
| Asthma | ||
| Cardiovascular disease | ||
| Hypertension | ||
| Diabetes mellitus | ||
| Vitals | ||
| Respiratory rate | 12 to 20 | breaths/minute |
| Temperature | 36.5 to 37.5 | degrees Celsius |
| Heart rate | 60 to 100 | beats/minute |
| Systolic blood pressure | 90 to 139 | mm Hg |
| Diastolic blood pressure | 50 to 89 | mm Hg |
| BMI | 20 to 24.9 | kg/m2 |
| O2 saturation room air | 95% to 100% | % |
| Laboratory tests | ||
| White blood cell count | 4.5 to 10 | 1000 cells/microliter |
| Lymphocyte count | 1000 to 4800 | cells/microliter |
| Neutrophil count | 2500 to 7500 | cells/microliter |
| Platelets | 150,000 to 450,000 | platelets/microliter |
| Serum creatinine | 0.5 to 1.2 | mg/dL |
| Blood urea nitrogen | 7 to 20 | mg/dL |
| Lactate dehydrogenase (LDH) | 140 to 280 | units/L |
| Aspartate aminotransferase (AST) | 10 to 40 | units/L |
| Alanine aminotransferase (ALT) | 7 to 56 | units/L |
| Ferritin | 12 to 300 | ng/mL |
| Troponin T or I | 0 to 0.4 | ng/mL |
| C-reactive protein (CRP) | < 10 | mg/dL |
| D-dimer | < 0.5 | mg/L |
| Interleukin-6 (IL6) | 0 to 16 | pg/mL |
| Outcome variables | ||
| Vasopressor needed in first 24 hours | ||
| Discharge disposition (discharged home, still hospitalized, deceased) | ||
| ICU admit during hospitalization (Y/N) | ||
| Mechanical ventilation (Y/N) | ||
| Number of days hospitalized (including observation status) | ||
| Number of days in the ICU | ||
| Number of days on ventilator |
COPD, Chronic obstructive pulmonary disease; BMI, body mass index.