TABLE 1.
Demographics and clinical characteristics of ED cohort
| Value | Intervention site (n = 8765) (%) | Comparator site (n = 8249) (%) | P a |
|---|---|---|---|
| Age, mean | 51.9 | 50 | 0.18 |
| Women | 4474 (51.0) | 4401 (53.3) | <0.001 |
| Race | |||
| African American | 2313 (26.3) | 1213 (14.7) | <0.001 |
| Caucasian | 4093 (46.7) | 5434 (65.9) | <0.001 |
| Comorbidities | |||
| Current Smoker | 3629 (41.4) | 3792 (46) | <0.001 |
| Hypertension | 2866 (32.7) | 1985 (24.1) | <0.001 |
| Diabetes | 1660 (18.9) | 1052 (12.8) | <0.001 |
| Systolic blood pressure, mean (SD), mmHg | 143.5 | 142 | <0.001 |
| Diastolic blood pressure, mean (SD), mmHg | 79.9 | 79.5 | 0.12 |
| Pulse, mean (SD), beats per minute | 81.7 | 79.6 | <0.001 |
| Oxygen saturation, mean (SD), % | 95.4 | 95.5 | 0.15 |
a
P values calculated using z‐tests of proportions for categorical variables and t tests for continuous variables. ED, emergency department.