Table 1.
Baseline Cohort Characteristics
| Characteristic | All Patients (n=24,164) | Received Critical Care Intervention (n=4,453) | Did not Receive Critical Care Intervention (n=19,711) | p-Value |
|---|---|---|---|---|
| Demographics | ||||
| Age (mean years, SD*) | 63.8 (18.1) | 64.7 (17.2) | 63.6 (18.3) | <0.001 |
| Gender (%female) | 49.1 | 46.2 | 49.8 | <0.001 |
| Vital Signs – mean, SD | ||||
| First HR (bpm*) | 91.8 (20.4) | 96.5 (23.7) | 90.7 (19.4) | <0.001 |
| Highest HR (bpm) | 95.7 (20.8) | 103.9 (24.4) | 93.8 (19.4) | <0.001 |
| First Systolic Blood Pressure (mmHg) | 129.2 (25.2) | 120.1 (29.3) | 131.2 (23.7) | <0.001 |
| Lowest Systolic Blood Pressure (mmHg) | 118.2 (23.9) | 103.7 (26.1) | 121.5 (22.2) | <0.001 |
| First Temperature (°F*) | 98.7 (1.7) | 98.5 (2.2) | 98.7 (1.5) | <0.001 |
| Highest Temperature (°F) | 99.2 (1.7) | 99.2 (2.3) | 99.2 (1.6) | 0.29 |
| First Respiratory Rate (bpm) | 18.9 (4.2) | 20.6 (6.1) | 18.5 (3.5) | <0.001 |
| Highest Respiratory Rate (bpm) | 20.8 (5.3) | 24.1 (7.0) | 20.1 (4.5) | <0.001 |
| Altered Mental Status (%) | 8.9 | 13.8 | 7.7 | <0.001 |
| Maximum Laboratory Values – Mean, SD | ||||
| WBC* (x103) | 12.0 (10.3) | 15.6 (14.8) | 11.2 (8.8) | <0.001 |
| Bilirubin (mg/dL) | 1.0 (2.0) | 1.4 (3.2) | 0.9 (1.7) | <0.001 |
| Creatinine (mg/dL) | 1.5 (1.6) | 2.0 (2.0) | 1.4 (1.5) | <0.001 |
| Lactate (mmol/L) | 1.9 (1.5) | 3.1 (2.6) | 1.7 (0.9) | <0.001 |
| Medical Comorbidities | ||||
| Congestive Heart Failure | 20.7 | 31.4 | 18.2 | <0.001 |
| Liver Disease | 10.1 | 13.1 | 9.4 | <0.001 |
| Renal Disease | 22.5 | 25.4 | 21.8 | <0.001 |
| COPD* | 25.4 | 29.6 | 24.4 | <0.001 |
| Diabetes | 30.7 | 34.4 | 30.0 | <0.001 |
| Dementia | 1.0 | 1.4 | 0.9 | 0.02 |
| Malignancy | 14.8 | 13.2 | 15.2 | <0.001 |
*
SD=standard deviation, bpm=beats per minute, F=fahrenheit, WBC=white blood cell count, COPD=chronic obstructive pulmonary disease