The relationships between demographic/clinical variables and the propensity for receipt of vasoactive therapy in different service types
| MICU, OR (95% CI) | SICU, OR (95% CI) | CCU, OR (95% CI) | CSRU, OR (95% CI) | |
| Age (year) | 0.99 (0.98 to 1.00) | 0.99 (0.98 to 1.01) | 0.99 (0.96 to 1.01) | 1.00 (0.99 to 1.01) |
| Gender (male) | 1.86* (1.20 to 2.87) | 1.45 (0.84 to 2.49) | 1.50 (0.84 to 2.69) | 1.60* (1.14 to 2.24) |
| SAPS | 1.16* (1.11 to 1.21) | 1.15* (1.09 to 1.21) | 1.15* (1.09 to 1.21) | 1.04* (1.00 to 1.09) |
| Elixhauser | 1.04 (0.91 to 1.20) | 1.09 (0.93 to 1.29) | 1.23* (1.02 to 1.49) | 1.05 (0.93 to 1.18) |
| Mean MAP prior to HE (mm Hg) | 1.00 (0.98 to 1.03) | 1.01 (0.99 to 1.04) | 1.03 (1.00 to 1.06) | 0.99 (0.97 to 1.01) |
| Urine output prior to HE >200 ml | 0.57* (0.36 to 0.92) | 0.50* (0.29 to 0.86) | 1.29 (0.74 to 2.25) | 0.72* (0.52 to 1.00) |
| Creatinine prior to HE (mg/dl) | 1.10 (0.96 to 1.27) | 1.10 (0.90 to 1.35) | 1.09 (0.88 to 1.36) | 0.57* (0.40 to 0.79) |
| Total volume of fluids given prior to HE (L) | 1.03 (0.95 to 1.13) | 1.02 (0.92 to 1.14) | 0.99 (0.89 to 1.11) | 1.00 (0.94 to 1.07) |
| Number of subjects | 692 | 535 | 379 | 726 |
| AUC | 0.751 | 0.748 | 0.740 | 0.603 |
| Hosmer–Lemeshow p value | 0.71 | 0.01 | 0.93 | 0.33 |
Each column represents a separate propensity score model for a specific service type.
↵* Statistically significant.
AUC, area under the receiver operating characteristic curve; CCU, coronary care unit; CSRU, cardiac surgery recovery unit; HE, hypotensive episode; MAP, mean arterial pressure; MICU, medical intensive care unit; SAPS, Simplified Acute Physiology Score; SICU, surgical intensive care unit.