Derivation Cohort N = 599 | Validation Cohort N = 2011 | |
---|---|---|
Gender, n (%) | ||
Male | 316 (52.8) | 977 (48.6) |
Female | 283 (47.3) | 1034 (51.4) |
Mean Age, years (SD) | 53.4 (17.4) | 56.1 (17.8) |
Race, n (%) | ||
Black | 81 (13.5) | 487 (24.2) |
White | 501 (83.6) | 1359 (67.5) |
Other | 16 (2.7) | 165 (8.2) |
Ethnicity, n (%) | ||
Hispanic | 548 (6.2) | 79 (3.9) |
Non-Hispanic | 562 (93.8) | 1886 (93.8) |
Unknown | 54 (9.0) | 20 (1.0) |
Vitals, mean (SD) | ||
Heart Rate, bpm | 91.2 (20.1) | 87.9 (20.2) |
Respiratory Rate, breath/min | 18.4 (2.9) | 18.5 (5.1) |
Temperature, °C | 36.7 (0.6) | 36.6 (0.6) |
SpO2, % | 97.5 (2.7) | 97.4 (2.5) |
Comorbidities, n (%) | ||
Cancer | 128 (27.83) | 171 (13.96) |
Stroke | 85 (18.48) | 120 (9.8) |
Congestive Heart Failure | 110 (23.91) | 250 (20.41) |
Dementia | 5 (1.09) | 90 (7.35) |
Diabetes Mellitus | 151 (32.83) | 443 (36.16) |
Myocardial Infarction | 54 (11.74) | 185 (15.1) |
Chronic Kidney Disease | 112 (24.35) | 323 (26.37) |
COPD | 138 (30.00) | 463 (37.8) |
Additional Predictive Variables | ||
Charlson comorbidity index, mean (SD) | 2.6 (2.3) | 3.3 (3.7) |
≥2 SIRS criteria, n (%)b | 182 (30.4) | 512 (25.5) |
SpO2 < 96%, n (%) | 96 (16.0) | 336 (16.7) |
WBC > 12 × 109/L, n (%) | 259 (43.2) | 740 (36.8) |
Hematocrit > 44%, n (%) | 108 (18.0) | 601 (29.9) |