Table 4

Feature importances given by the random forest (RF) and logistic classifier (LC), evaluated over 100 train-test data splits. Importance values are given as: mean (SD). Features are ranked according to mean importance value, and the table is ordered according to the ranking given by the LC

Importance (LC)Importance (RF)Rank (LC)Rank (RF)
gcs_min0.1053 (0.0026)0.1029 (0.0102)00
airway0.0776 (0.0026)0.0602 (0.0076)11
bun0.0190 (0.0009)0.0139 (0.0025)23
fio20.0096 (0.0006)0.0205 (0.0024)32
hr_max0.0063 (0.0009)0.0076 (0.0015)44
haemoglobin0.0061 (0.0006)0.0040 (0.0014)56
resp_max0.0037 (0.0006)0.0031 (0.0010)67
hr_min0.0024 (0.0006)0.0047 (0.0014)75
na0.0010 (0.0003)0.0005 (0.0004)815
hco30.0009 (0.0003)0.0006 (0.0005)914
spo2_min0.0005 (0.0002)0.0005 (0.0003)1016
bp_min0.0003 (0.0001)0.0013 (0.0009)1111
resp_min0.0001 (0.0001)0.0020 (0.0007)129
pain0.0000 (0.0000)0.0009 (0.0006)1313
creatinine0.0000 (0.0000)0.0028 (0.0011)148
k0.0000 (0.0000)0.0003 (0.0003)1517
temp_min0.0000 (0.0000)0.0012 (0.0009)1612
temp_max0.0000 (0.0000)0.0018 (0.0008)1710