Table 3 Random Forest Variable Importance (VI) and Regression Coefficient from Run 1: Top 40 Variables

GA36AC1

493

1

*0.0142

0.0002

GA36EFW1

468

2

*0.0007

0.0080

Gestational Age - Delivery (Weeks)

435

3

*0.4142

0.0000

GA21AC1

232

4

0.0023

0.6171

GA11CRL1

159

5

0.0003

0.9525

Maternal BMI at Delivery Time

153

6

*-0.1452

0.0023

Maternal Weight at Delivery Time

150

7

*0.0722

0.0001

GA36BPD1

134

8

0.0223

0.0524

GA21AC2

130

9

− 0.0005

0.9060

GA21BPD2

128

10

−0.0004

0.9759

Maternal Pregestational BMI

113

11

*-0.1060

0.0137

GA11W1

106

12

−0.0208

0.7815

GA21EFW1

105

13

*0.0014

0.0055

Maternal Age

102

14

−0.0069

0.3563

GA36FL1

100

15

−0.0042

0.7725

GA21FL2

95

16

−0.0272

0.1342

Maternal Height

92

17

*-0.0706

0.0002

Maternal Pregestational Weight

86

18

*0.0351

0.0468

GA14FL1

84

19

−0.0241

0.2647

GA36HC1

82

20

*-0.0070

0.0289

GA21EFW2

80

21

*0.0012

0.0019

GA20EFW1

79

22

−0.0006

0.4659

GA21AC3

79

23

0.0016

0.7871

GA21HC2

79

24

−0.0009

0.7748

GA11NT1

77

25

−0.0229

0.2652

GA20FL1

74

26

0.0217

0.2701

GA21FL1

72

27

*-0.0513

0.0031

GA20HC1

70

28

0.0015

0.6991

GA21BPD1

68

29

−0.0188

0.1413

GA21EFW3

68

30

0.0008

0.1122

GA14BPD1

67

31

0.0218

0.1921

GA20BPD1

67

32

0.0000

0.9978

GA20AC1

67

33

−0.0001

0.8142

GA21FL3

65

34

0.0033

0.8730

GA14AC1

64

35

−0.0024

0.6350

Apgar Score in 1 Minute After Delivery

58

36

−0.0130

0.7312

GA14EFW1

55

37

−0.0003

0.8853

GA21HC1

55

38

−0.0017

0.3220

GA21D2

53

39

−0.0197

0.2833

GA21BPD3

53

40

−0.0084

0.6104