Table 3.
Characteristics of Study Patients
| All | Estimation Set | Validation Set | |
|---|---|---|---|
| All Study Arms (n) | 836 | 570 | 266 |
| Age (years, mean ± standard deviation) | 6.8 ± 5.5 | 6.7 ± 5.4 | 6.9 ± 5.5 |
| Female Gender (n (%)) | 331 (40%) | 218 (38%) | 113 (42%) |
| Race | |||
| African American (n (%)) | 212 (25%) | 142 (25%) | 70 (26%) |
| White (n (%)) | 561 (67%) | 387 (68%) | 174 (65%) |
| Asian (n (%)) | 31 (4%) | 19 (3%) | 12 (5%) |
| Other/Unknown (n (%)) | 32 (4%) | 22 (4%) | 10 (4%) |
| Hispanic Ethnicity (n (%)) | 140 (17%) | 91 (16%) | 49 (18%) |
| Post-Operative* (n=685, n(%)) | 218 (32%) | 142 (31%) | 76 (35%) |
| Neurosurgery (n) | 82 | 54 | 28 |
| Orthopedic (n) | 34 | 24 | 10 |
| Cardiac (n) | 30 | 20 | 10 |
| Other (n) | 72 | 44 | 28 |
| Emergency Admission* (n=685, n (%)) | 443 (65%) | 301 (65%) | 142 (65%) |
| Primary Systems of Dysfunction | |||
| Cardiovascular (n (%)) | 91 (11%) | 65 (11%) | 26 (10%) |
| Gastrointestinal (n (%)) | 59 (7%) | 44 (8%) | 15 (6%) |
| Neurological (n (%)) | 284 (34%) | 203 (36%) | 81 (30%) |
| Oncology (n (%)) | 62 (7%) | 42 (7%) | 20 (8%) |
| Orthopedics (n (%)) | 61 (7%) | 42 (7%) | 19 (7%) |
| Respiratory (n (%)) | 155 (19%) | 91 (16%) | 64 (24%) |
| Other (n (%)) | 124 (15%) | 83 (15%) | 41 (15%) |
| Limitations of Care Orders | 13 (2%) | 10 (2%) | 3 (1%) |
| PICU length of stay (days) (mean ± standard deviation) | (n=345) 4.5 ± 10.4 |
(n=235) 4.6 ± 10.7 |
(n=110) 4.3 ± 9.7 |
*
This characteristic was not applicable to technology-dependent patients.