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Table 5 Normalization of unstandardized coefficients and final corresponding SEDRSM scores

From: A novel cardiovascular risk stratification model incorporating ECG and heart rate variability for patients presenting to the emergency department with chest pain

Model criteria

β Coefficients

 

Final score

Gender, male

0.773

2.789

3

Age in years, ≥60

0.323

1.165

1

Heart rate, beat/min

   

 ≥115

0

0

0

 ≤55

1.510

5.448

5

 56–114

0.716

2.582

3

ST elevation, yes

2.138

7.715

8

ST depression, yes

2.382

8.597

9

Q wave, yes

1.076

3.883

4

QT prolongation, yes

0.372

1.341

1

AVRR <0.77

0.415

1.498

1

TINN

   

 0.11–0.17

0

0

0

 <0.11

0.712

2.571

3

 >0.17

0.277

1.000

1

HF power <0.07

0.531

1.916

2

  1. Risk score ranges from 0 to 37. SEDRSM Singapore emergency department risk stratification model, AVRR average RR, TINN triangular index NN, HF high frequency
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Critical Care

ISSN: 1364-8535