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Table 4 Summary of the recall, precision, accuracy, and the optimal features selection (OFS) obtained with RFECV of the various input features combinations represented as a trial number (T#), √: included, x; exclude, ACC: accuracy, BACC: balanced accuracy, AUC: area under the curve, RCL: recall, PRC: precision

From: Preadmission assessment of extended length of hospital stay with RFECV-ETC and hospital-specific data

Features

T#1

T#2

T#3

T#4

T#5

T#6

T#7

T#8

T#9

T#10

T#11

T#12

VMO

√

√

√

√

√

√

√

√

√

x

x

x

PAG

√

√

√

√

√

√

√

√

√

√

√

√

PGD

√

√

x

x

x

x

x

x

x

√

√

√

ADC

√

√

√

√

x

x

x

x

x

√

√

√

ADT

√

√

√

√

√

x

x

x

x

√

√

√

PCC

√

√

√

x

x

x

x

x

x

√

√

x

PRG

√

 × 

 × 

 × 

 × 

 × 

 × 

 × 

 × 

√

x

x

DTH

√

√

√

√

√

√

√

 × 

 × 

√

√

√

SES

√

√

√

√

√

√

√

√

 × 

√

√

√

CCI

√

√

√

√

√

√

 × 

 × 

 × 

√

√

√

OFS

71

59

57

59

61

52

39

28

17

59

51

46

RCL

0.944 ± 0.092

0.905 ± 0.101

0.891 ± 0.100

0.891 ± 0.101

0.858 ± 0.098

0.807 ± 0.075

0.794 ± 0.041

0.749 ± 0.032

0.780 ± 0.018

0.894 ± 0.109

0.819 ± 0.089

0.817 ± 0.090

PRC

0.820 ± 0.083

0.793 ± 0.085

0.770 ± 0.085

0.77 ± 0.087

0.721 ± 0.092

0.640 ± 0.086

0.587 ± 0.063

0.569 ± 0.062

0.596 ± 0.069

0.893 ± 0.044

0.828 ± 0.067

0.828 ± 0.067

F1-score

0.871 ± 0.053

0.838 ± 0.061

0.818 ± 0.06

0.818 ± 0.060

0.775 ± 0.059

0.707 ± 0.051

0.672 ± 0.038

0.644 ± 0.042

0.673 ± 0.042

0.89 ± 0.069

0.82 ± 0.066

0.819 ± 0.066

AUC

0.936 ± 0.038

0.885 ± 0.050

0.863 ± 0.055

0.863 ± 0.054

0.806 ± 0.070

0.682 ± 0.115

0.576 ± 0.14

0.551 ± 0.149

0.614 ± 0.112

0.940 ± 0.052

0.901 ± 0.054

0.900 ± 0.054

ACC

0.86 ± 0.061

0.824 ± 0.069

0.802 ± 0.071

0.801 ± 0.071

0.749 ± 0.078

0.661 ± 0.086

0.608 ± 0.074

0.581 ± 0.079

0.616 ± 0.074

0.893 ± 0.058

0.821 ± 0.062

0.821 ± 0.062

BACC

0.86 ± 0.061

0.824 ± 0.069

0.802 ± 0.071

0.801 ± 0.071

0.749 ± 0.078

0.661 ± 0.086

0.608 ± 0.074

0.581 ± 0.079

0.616 ± 0.074

0.893 ± 0.058

0.821 ± 0.062

0.821 ± 0.062