Table 1.
Characteristics of Patients by Admitting Service
| Baseline Characteristic | NP (n = 2,366) | Resident (n = 6,700) | P Value |
|---|---|---|---|
| Age, y | 55.9 [42.1-67.6] | 56.7 [43.5-67.2] | .23a |
| Men | 51% (1,206) | 52% (3,504) | .27b |
| Caucasian | 78% (1,844) | 76% (5,121) | .002b |
| BMI, kg/m2 | 26.0 [22.0-31.4] | 26.7 [22.7-32.4] | < .001a |
| Currently married | 43% (1,017) | 46% (3,098) | .006a |
| Origin of admission | < .001a | ||
| ED | 53% (1,259) | 52% (3,483) | |
| Referring hospital | 18% (418) | 25% (1,644) | |
| In-house transfer | 20% (462) | 16% (1,077) | |
| Other | 10% (227) | 7% (496) | |
| Admitting diagnosis | < .001b | ||
| Sepsis | 19% (446) | 26% (1,730) | |
| Respiratory failure | 15% (361) | 15% (980) | |
| GI bleed | 13% (307) | 12% (800) | |
| Drug toxicity or ingestion | 8% (193) | 5% (354) | |
| Glucose disorder | 6% (150) | 4% (267) | |
| Altered mental status | 6% (144) | 6% (389) | |
| Other | 33% (765) | 33% (2,180) | |
| Mechanical ventilationc | 28% (654) | 37% (2,456) | < .001b |
| Vasopressorsc | 27% (627) | 36% (2,424) | < .001b |
| UHC expected mortality | 10.4% | 15.5% | < .001a |
Data are presented as median [25th-75th percentile] or percentage (number). A complete list of diagnoses classified as “other” is provided in e-Table 1 of the e-Appendix 1. Glucose disorder includes diabetic ketoacidosis, hyperosmolar hyperglycemic nonketotic syndrome, and hypoglycemia. NP = nurse practitioner; UHC = University HealthSystem Consortium.
a
Wilcoxon test.
b
Pearson χ2 test.
c
Mechanical ventilation and vasopressors were not necessarily present at the time of ICU admission but when employed were initiated within 24 h of ICU admission in 90% and 80% of cases, respectively.