Table 1. Patient Characteristics According to Pre-Transplant ICU Stay (N = 19,508).
| Characteristic | Missing data |
Not in ICU (N = 13,199) |
In ICU (N = 6,309) |
P value |
|---|---|---|---|---|
| N | N (%) | N (%) | ||
| Age group (years) | 0 | < 0.001 | ||
| < 1 | 384 (3%) | 841 (13%) | ||
| 2 - 11 | 559 (4%) | 408 (6%) | ||
| 12 - 18 | 520 (4%) | 349 (6%) | ||
| 19 - 29 | 746 (6%) | 434 (7%) | ||
| 30 - 39 | 988 (7%) | 429 (7%) | ||
| 40 - 49 | 1,865 (14%) | 765 (12%) | ||
| 50 - 59 | 3,792 (29%) | 1,468 (23%) | ||
| 60 - 69 | 3,996 (30%) | 1,468 (23%) | ||
| ≥ 70 | 349 (3%) | 147 (2%) | ||
| Female gender | 0 | 3,573 (27%) | 1,944 (31%) | < 0.001 |
| Race | 0 | < 0.001 | ||
| Non-Hispanic White | 8,928 (68%) | 4,028 (64%) | ||
| Non-Hispanic Black | 2,597 (20%) | 1,278 (20%) | ||
| Hispanic | 1,105 (8%) | 677 (11%) | ||
| Other | 569 (4%) | 326 (5%) | ||
| Body mass index category | 13 | < 0.001 | ||
| Underweight | 508 (4%) | 521 (8%) | ||
| Normal weight | 4,526 (34%) | 2,716 (43%) | ||
| Overweight | 8,160 (62%) | 3,064 (49%) | ||
| Indication for transplant | 0 | < 0.001 | ||
| Congenital heart disease | 932 (7%) | 870 (14%) | ||
| Hypertrophic cardiomyopathy | 298 (2%) | 146 (2%) | ||
| Ischemic cardiomyopathy | 4,767 (36%) | 1,759 (28%) | ||
| Non-ischemic cardiomyopathy | 6,198 (47%) | 3,065 (49%) | ||
| Restrictive cardiomyopathy | 432 (3%) | 207 (3%) | ||
| Valvular heart disease | 190 (1%) | 113 (2%) | ||
| Other | 382 (3%) | 149 (2%) | ||
| Mechanical ventilation | 0 | 91 (1%) | 758 (12%) | < 0.001 |
| Mechanical circulatory support | 0 | < 0.001 | ||
| None | 7,790 (59%) | 4,778 (76%) | ||
| Extracorporeal membrane oxygenation | 31 (0.2%) | 261 (4%) | ||
| Ventricular assist device | 5,378 (41%) | 1,270 (20%) | ||
| Inotrope use | 0 | 3,801 (29%) | 4,183 (66%) | < 0.001 |
| Dialysis on waitlist | 177 | 162 (1%) | 214 (3%) | < 0.001 |
| Bilirubin > 2 mg/dL | 344 | 985 (8%) | 891 (14%) | < 0.001 |
| Infection requiring intravenous antibiotics | 486 | 1,140 (9%) | 1,106 (18%) | < 0.001 |
| Allograft ischemia time (h) | 340 | 0.001 | ||
| < 2 | 1,533 (12%) | 625 (10%) | ||
| 2 - 4 | 8,513 (66%) | 4,102 (66%) | ||
| > 4 | 2,932 (23%) | 1,463 (24%) |