Table 3.
Logistic regression coefficients for models derived for cardiac arrest, intensive care unit transfer, death, or a composite of all three outcomes.
| Variable (units) | Combined Outcome |
ICU transfer | Cardiac Arrest | Mortality |
|---|---|---|---|---|
| Heart rate (beats/min) | 0.03 (0.03, 0.03) | 0.03 (0.03, 0.03) | 0.03 (0.02, 0.03) | 0.04 (0.04, 0.04) |
| Systolic blood pressure (mmHg) | 0.001 (0.001, 0.002) | 0.002 (0.002, 0.003) | 0.01 (0.01, 0.01) | −0.26 (−0.28, −0.23) |
| Diastolic blood pressure (mmHg) | −0.02 (−0.02, −0.02) | −0.02 (−0.02, −0.02) | −0.04 (−0.04, −0.03) | −0.02 (−0.03, −0.02) |
| Respiratory rate (breaths/min) | 0.15 (0.14, 0.15) | 0.15 (0.14, 0.15) | 0.16 (0.15, 0.17) | 0.14 (0.13, 0.15) |
| Oxygen saturation (%) | −0.06 (−0.06, −0.05) | −0.51 (−0.55, −0.48) | −0.01 (−0.03, 0.01) | −0.08 (−0.08, −0.07) |
| Temperature (°C) | −0.05 (−0.07, −0.04) | −0.02 (−0.04, −0.005) | −0.54 (−0.62, −0.45) | −0.35 (−0.40, −0.30) |
| Supplemental oxygen requirement | 0.50 (0.53, 0.47) | 0.47 (0.50, 0.44) | 0.65 (0.81, 0.48) | 0.85 (0.97, 0.73) |
| Mental Status | ||||
| Alert | Reference | Reference | Reference | Reference |
| Responsive to voice | 1.03 (0.99, 1.08) | 1.03 (0.98, 1.08) | 0.97 (0.74, 1.20) | 0.81 (0.62, 0.99) |
| Responsive to pain | 1.64 (1.46, 1.80) | 1.30 (1.09, 1.50) | 0.93 (0.10, 1.96) | 2.41 (2.07, 2.76) |
| Unresponsive | 3.09 (2.87, 3.30) | 1.95 (1.68, 2.22) | 1.16 (−0.03, 2.36) | 4.47 (4.19, 4.75) |
All data shown are regression coefficients (95% confidence interval).