Table 1. The final list of features in the model after 2 rounds of feature selections.
Feature group | Number | Feature description (past 12 month clinical histories) |
---|---|---|
Encounter history | 118 | Visit counts of different encounter types (E/O/I/P/R) a , the accumulated length of hospitalized stay, counts of historical chronic disease diagnoses, counts of total and non redundant total radiographic, counts of total and non redundant laboratory tests, and counts of total and non redundant outpatient prescriptions |
Demographics | 4 | Gender, income, education, payer, and age group that is defined by age at IP admission (0, 1–5yr, 6–12yr, 13–18yr, 19–34yr, 35–49yr, 50–65yr, 65+yr) b |
Radiology | 2 | Different radiology tests |
Payer | 1 | Different payer information |
Chronic disease condition | 19 | Counts for chronic diseases |
Diagnosis | 4 | Counts for primary diagnosis and secondary diagnosis |
Laboratory test | 24 | Counts for different laboratory test results |
Outpatient prescriptions | 71 | Counts for different outpatient prescriptions |
aEncounter type descriptions: E-Emergency, O-Outpatient, I-Inpatient, P-Pre admission, R-Recurring admission
byr-year