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. 2015 Oct 8;10(10):e0140271. doi: 10.1371/journal.pone.0140271

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