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Table 5 Final status of numeric explanatory variables- laboratory variables

From: A three-step approach for the derivation and validation of high-performing predictive models using an operational dataset: congestive heart failure readmission case study

 

P-values

Mean

SD

G/W

Inf

Sym

Red cell distribution width (11.7-26.7)

<0.0001

15.86

2.26

1

9

4

Glucose, Serum or Plasma

<0.0001

111

43.55

   

Urea Nitrogen, Serum or Plasma

<0.0001

35.47

22.23

   

Sodium, Serum or Plasma

<0.0001

136.2

4.54

   

Creatinine, Serum or Plasma

<0.0001

1.52

1.05

   

Potassium, Serum or Plasma

<0.0001

4.13

0.52

   

Hemoglobin (6.3-18.8)

<0.0001

11.73

2.42

5

3

2

Mean Platelet Volume

<0.0001

8.91

1.08

   

Platelet

<0.0001

250

114.28

   

Mean Corpuscular Hemoglobin

<0.0001

29.23

3

   

Mean Corpuscular Volume

<0.0001

89.61

7.27

   

Red Blood Cell (1.97-7.04)

<0.0001

4.04

0.85

5

7

8

Hematocrit (19–59.9)

<0.0001

36

7.28

6

4

3

White Blood Cell Count

<0.0001

8.05

3.03

   

Mean Corpuscular Hgb Concentration

<0.0001

32.6

1.52

   

Granulocyte%

<0.0001

72.58

10.49

   

Basophil% (0–2.4)

<0.0001

0.44

0.31

4

6

7

Eosinophil%

<0.0001

2.38

2.4

   

Lymphocyte%

<0.0001

18.11

9.01

   

Monocyte%

<0.0001

6.5

2.14

   

Granulocyte #

<0.0001

6.3

3.32

   

Basophil #

<0.0001

0.02

0.04

   

Lymph #

<0.0001

1.42

0.74

   

Monocyte #

<0.0001

0.53

0.23

   

Eosinophil #

<0.0001

0.18

0.19

   

Protein, Total, Serum or Plasma

<0.0001

6.73

0.83

   

Bilirubin, Total

<0.0001

1.09

2.19

   

Albumin, Serum or Plasma

<0.0001

3.49

0.55

   

Alanine Aminotransferase

<0.0001

54.32

76.02

   

Aspartate Aminotransferase

<0.0001

66.43

96.51

   

Alkaline Phosphatase

<0.0001

118.1

66.85

   

B-Type Natriuretic Peptide

<0.0001

1477

129.56

   

CharlsonIndex frequency

<0.0001

4.66

2.64

9

11

9

Excluded comorbidities

0.001

[0.2,4.8]

[0.45,2.45]

   

Diseases of the musculoskeletal system and connective tissue

<0.0001

0.35

0.69

   

Injury and poisoning

<0.0001

0.35

0.66

12

10

11

Last Reading Systolic Blood Pressure (LSBP)

<0.0001

110.8

21.08

   

Last Reading Heart Rate (LHR)

<0.0001

80.16

15.78

   

First Reading Weight KG (FW)

<0.0001

91.36

31.92

   

Last Reading Weight KG (LW)

<0.0001

88.87

46.21

   

Prior charlsonIndex frequency

<0.0001

3.34

8.06

10

12

10

  1. Variables included as risk factors in the final model are indicated in non-italic font, and variables excluded from the model are indicated in italics. The dataset used is the 2008–2012 derivation dataset. G/W, Info and Sym are the relative ranks of the most significant variables (relative weight ≥ 0.001) using the GainRatioAttributeEval/Wrapper, InfoGainAtttributeEval, and SymmetricalUncertAttrbuteEval ranking strategies, respectively. G/W combines two strategies, because the relative ranks were equivalent using both approaches. All ranked variables are listed with their ranges.