Table 4.
Feature | Importance based on average impurity decrease |
Hour of EDa disposition | 0.42 |
Age in days | 0.40 |
Whether the patient has any other barrier to learning | 0.39 |
Length of ED stay in minutes | 0.38 |
Number of laboratory tests ordered during the ED visit | 0.37 |
Heart rate | 0.37 |
Diastolic blood pressure | 0.36 |
Gender | 0.35 |
Temperature | 0.35 |
Respiratory rate | 0.34 |
Number of radiology studies ordered during the ED visit | 0.34 |
Insurance category | 0.34 |
Number of X-rays ordered during the ED visit | 0.34 |
Systolic blood pressure | 0.34 |
Weight | 0.33 |
Chief complaint | 0.32 |
SpO2b | 0.32 |
Wheezing | 0.32 |
Retractions | 0.29 |
Number of consults during the ED visit | 0.28 |
Whether the patient is up-to-date with his/her immunizations | 0.27 |
Race | 0.27 |
Enterovirus infection | 0.25 |
Respiratory syncytial virus infection | 0.24 |
Coinfection | 0.24 |
Prior hospitalization | 0.22 |
Prior intubation | 0.22 |
Dehydration | 0.20 |
Language barrier to learning | 0.20 |
Rhinovirus infection | 0.20 |
Prematurity | 0.18 |
History of bronchopulmonary dysplasia | 0.16 |
History of eczema | 0.15 |
aED: emergency department.
bSpO2: peripheral capillary oxygen saturation.