Table 3.
Characteristics of patients with an intensive care unit (ICU) length of stay below (<5days) vs. above (> 5 days) a clinical threshold for concern about a prolonged ICU stay.
| Regular ICU Stays | Prolonged ICU Stays | P-value | |
|---|---|---|---|
| # Admissions | 270,487 | 73,068 | |
| Age (years) | 61.6 ± 17.7 | 61.9 ± 17.4 | 0.002 |
| Acute Physiology Score - Day 1 | 36.2 ± 23.7 | 53.5 ± 25.7 | <0.001 |
| Day 1 ICU LOS Prediction | 3.26 ± 2.04 | 5.80 ± 2.29 | <0.001 |
| Prior LOS (square root of days) | 0.89 ± 1.27 | 1.26 ± 1.64 | <0.001 |
| Gender = Male | 54.1% | 55.1% | <0.001 |
| Operative | 31.7% | 23.1% | <0.001 |
| Emergency Surgery | 5.2% | 9.2% | <0.001 |
| ICU Readmission | 5.0% | 10.6% | <0.001 |
| Mechanical Ventilation on Day 1 | 27.9% | 66.2% | <0.001 |
| Received active treatment on Day 1 | 53.5% | 82.5% | <0.001 |
| ≥ 1 Chronic health item | 12.4% | 16.4% | <0.001 |
| Race | <0.001 | ||
| White | 65.9% | 65.5% | |
| Black | 13.1% | 15.2% | |
| Latino | 3.8% | 3.8% | |
| Other | 17.3% | 15.5% | |
| Location Prior to ICU Admission | <0.001 | ||
| Operating Room | 9.9% | 10.9% | |
| Recovery Room | 21.8% | 12.3% | |
| Emergency Room | 38.0% | 33.2% | |
| Floor | 15.0% | 22.9% | |
| Other Hospital | 5.2% | 8.3% | |
| Direct Admission | 5.7% | 4.2% | |
| SDU | 4.4% | 8.4% | |
| Visit | <0.001 | ||
| 1 | 95.1% | 89.5% | |
| 2 | 4.4% | 8.8% | |
| ≥ 3 | 0.6% | 1.7% | |
| Top Five Diagnostic Groups* | |||
| Congestive heart failure | 3.7% | Bacterial pneumonia | 5.2% |
| Gastrointestinal bleeding, Upper | 3.1% | Congestive Heart Failure | 3.6% |
| Rhythm disturbance | 3.1% | Sepsis, pulmonary | 3.1% |
| Drug Overdose | 2.6% | Intracerebral hemorrhage | 3.0% |
| Carotid endarterectomy | 2.6% | Cardiac Arrest | 2.9% |
* Does not include 'miscellaneous" categories within a body system.