| | Variables | ICU admissions | | = 15,553 |
| | Age, years (%) | | | <18 | 33 (0.2) | | 18–44 | 4,954 (31.9) | | 45–64 | 9,565 (61.7) | | ≥65 | 971 (6.2) | | Gender | | | Female | 1,430 (26.2) | | Race/ethnicity (%) | | | White | 7,876 (50.6.0) | | Hispanic | 2,649 (17.0) | | Black | 4,242 (27.3) | | Other | 786 (5.1) | | Health insurance (%) | | | Private | 1,976 (12.7) | | Medicare | 2,587 (16.3) | | Medicaid | 3,493 (22.5) | | Uninsured | 7,018 (45.1) | | Other | 479 (3.1) | | Missing | 54 (0.3) | | Deyo comorbidity index (mean [SD]) | 1.6 (2.1) | | Comorbidities (%) | | | Lung diseas | 3,726 (24.0) | | Diabete | 3,327 (21.4) | | Liver diseas | 2,894 (18.6) | | Renal diseas | 1,517 (9.8) | | Congestive heart failur | 2,291 (14.7) | | Malignanc | 504 (3.2) | | HI | 466 (3.0) | | Mental illness | 13,050 (83.9) | | Depression | 5,395 (34.7) | | Drug-related disorders | 5,794 (37.3) | | Alcohol-related disorders | 6,537 (42.0) | | Smoking | 8,648 (55.6) | | Malnutrition | 1,517 (9.8) | | Obesity | 1,037 (6.7) | | Transfer from another hospital | 655 (4.2) | | Type of hospital admission (%) | | | Medical | 13,669) (87.9) | | Surgical | 1,884 (12.1) | | Teaching hospital | 9,072 (58.3) | | Number of organ failures (%) | | | 0 | 9,081 (58.4) | | 1 | 4,001 (25.7) | | 2 | 1,564 (10.1) | | 3+ | 907 (5.6) | | Type of organ failures (%) | | | Respiratory | 2,116 (13.6) | | Cardiovascular | 981 (6.3) | | Renal | 2,975 (19.1) | | Hepatic | 389 (2.5) | | Hematological | 1,546 (9.9) | | Metabolic | 1,156 (7.4) | | Neurological | 1,125 (7.2) | | Mechanical ventilation (%) | 1,565 (10.0) | | Hemodialysis (%) | 510 (3.3) | | Blood transfusion (%) | 1,452 (9.3) | | Hospital length of stay (days) | | | Mean (SD) | 7.4 (10.6) | | Median (IQR) | 5 (3–8) | | Total hospital charge | | | Mean (SD) | 50,234 (66,383) | | Median (IQR) | 29,494 (18,109–54,418) | | Hospital disposition (%) | | | Routine home | 11,351 (73.0) | | Home with home health | 186 (1.2) | | Another hospital | 1,306 (8.4) | | Nursing facility | 908 (5.8) | | Leave against medical advice | 1,116 (7.2) | | Death | 383 (2.5) | | Hospice | 119 (0.8) | | Missing | 184 (1.2) |
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