Table 3 Predictive value of QTc interval for obstructive coronary artery disease by logistic regression model.

From: Incremental value of QT interval for the prediction of obstructive coronary artery disease in patients with chest pain

 

CAD2 clinical model

CAD2 + QTc (continuous)

CAD2 + QT prolongation

OR (95% CI)

p-value

OR (95% CI)

p-value

Age (per 10 year)

1.54 (1.38, 1.72)

 < 0.001

1.55 (1.39, 1.73)

 < 0.001

Male

1.84 (1.43, 2.38)

 < 0.001

1.29 (0.997, 1.66)

0.053

Chest pain

Non-specific

1.00

 

1.00

 

Atypical

1.29 (0.90, 1.84)

0.173

1.34 (0.93, 1.92)

0.118

Typical

2.11 (1.46, 3.07)

 < 0.001

2.20 (1.51, 3.20)

 < 0.001

DM

1.79 (1.38, 2.33)

 < 0.001

1.81 (1.39, 2.36)

 < 0.001

Hypertension

1.18 (0.94, 1.49)

0.157

1.18 (0.94, 1.49)

0.152

Dyslipidemia

1.16 (0.89, 1.52)

0.277

1.17 (0.89, 1.53)

0.267

Smoking

1.81 (1.30, 2.50)

 < 0.001

1.84 (1.33, 2.55)

 < 0.001

QTc (continuous)

1.14 (1.09, 1.18)

 < 0.001

  

QT prolongation

  

2.27 (1.81, 2.85)

 < 0.001

 

UDF model

UDF + QTc (continuous)

UDF + QT prolongation

OR (95% CI)

p-value

OR (95% CI)

p-value

Age (per 10 year)

1.59 (1.43, 1.76)

 < 0.001

1.60 (1.44, 1.77)

 < 0.001

Male

2.20 (1.73, 2.79)

 < 0.001

1.51 (1.19, 1.92)

0.006

Chest pain

Non-specific

1.00

 

1.00

 

Atypical

1.27 (0.89, 1.82)

0.182

1.32 (0.92, 1.89)

0.128

Typical

2.14 (1.52, 3.01)

 < 0.001

2.21 (1.57, 3.12)

 < 0.001

QTc (continuous)

1.14 (1.10, 1.19)

 < 0.001

  

QT prolongation

  

2.34 (1.87, 2.93)

 < 0.001

  1. CAD2 CAD Consortium clinical score, UDF updated Diamond-Forrester score, OR odds ratio, CI confidence interval, QTc corrected QT, DM diabetes mellitus.
Back to article page