Table 2 Open in new tab Cox proportional...

Factors

Factor descriptions

Hazard ratio

95% CI

P-value

F₁

Inferolateral ST deviation

0.91

0.72–1.14

0.39

F₅

Inferolateral T-wave height and orientation

1.17

0.92–1.48

0.19

F₆

P-wave height and/or shape

1.14

0.90–1.44

0.27

F₈^a

PR-interval (high values associated with first degree AV-block and reduced LVEF)

1.61

1.29–1.99

<0.005

F₉

T-wave height and orientation

1.12

0.89–1.39

0.34

F₁₀

Ventricular rate

0.93

0.76–1.13

0.46

F₁₁

Subtle P- and T-wave changes

1.00

0.83–1.21

0.97

F₁₂

Onset of depolarization

1.08

0.86–1.36

0.50

F₁₃

Anterior ST deviation

0.85

0.68–1.06

0.14

F₁₅^a

P-wave height and P/T-overlap (low values associated with third-degree AV-block and junctional tachycardia)

0.81

0.66–0.99

0.04

F₁₆

T-wave morphology

1.14

0.94–1.40

0.19

F₁₇

Lateral ST deviation

1.08

0.85–1.38

0.51

F₁₉

Precordial R-wave progression and combined P-QRS-T-amplitude

1.07

0.87–1.33

0.51

F₂₂

Subtle T-wave changes

1.02

0.83–1.25

0.85

F₂₃

P-wave height and/or shape

1.13

0.93–1.37

0.21

F₂₅^a

Right bundle branch delay (low values associated with ventricular tachycardia, RBBB, and reduced LVEF)

0.77

0.62–0.95

0.02

F₂₆

Left bundle branch delay

1.02

0.81–1.29

0.85

F₂₇^a

P- and R-axis deviation (low values associated with AF, junctional bradycardia, ventricular tachycardia, and left axis deviation)

0.71

0.57–0.88

<0.005

F₃₀

QR interval

0.92

0.74–1.16

0.48

F₃₁

QRS-T amplitudes

0.86

0.71–1.05

0.15

F₃₂^a

QRS-T amplitudes (high values associated with microvoltages)

1.26

1.02–1.55

0.03

Table 2

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Cox proportional hazards model of generative factors in both cohorts

Factors	Factor descriptions	Hazard ratio	95% CI	P-value
F₁	Inferolateral ST deviation	0.91	0.72–1.14	0.39
F₅	Inferolateral T-wave height and orientation	1.17	0.92–1.48	0.19
F₆	P-wave height and/or shape	1.14	0.90–1.44	0.27
F₈^a	PR-interval (high values associated with first degree AV-block and reduced LVEF)	1.61	1.29–1.99	<0.005
F₉	T-wave height and orientation	1.12	0.89–1.39	0.34
F₁₀	Ventricular rate	0.93	0.76–1.13	0.46
F₁₁	Subtle P- and T-wave changes	1.00	0.83–1.21	0.97
F₁₂	Onset of depolarization	1.08	0.86–1.36	0.50
F₁₃	Anterior ST deviation	0.85	0.68–1.06	0.14
F₁₅^a	P-wave height and P/T-overlap (low values associated with third-degree AV-block and junctional tachycardia)	0.81	0.66–0.99	0.04
F₁₆	T-wave morphology	1.14	0.94–1.40	0.19
F₁₇	Lateral ST deviation	1.08	0.85–1.38	0.51
F₁₉	Precordial R-wave progression and combined P-QRS-T-amplitude	1.07	0.87–1.33	0.51
F₂₂	Subtle T-wave changes	1.02	0.83–1.25	0.85
F₂₃	P-wave height and/or shape	1.13	0.93–1.37	0.21
F₂₅^a	Right bundle branch delay (low values associated with ventricular tachycardia, RBBB, and reduced LVEF)	0.77	0.62–0.95	0.02
F₂₆	Left bundle branch delay	1.02	0.81–1.29	0.85
F₂₇^a	P- and R-axis deviation (low values associated with AF, junctional bradycardia, ventricular tachycardia, and left axis deviation)	0.71	0.57–0.88	<0.005
F₃₀	QR interval	0.92	0.74–1.16	0.48
F₃₁	QRS-T amplitudes	0.86	0.71–1.05	0.15
F₃₂^a	QRS-T amplitudes (high values associated with microvoltages)	1.26	1.02–1.55	0.03

Factors	Factor descriptions	Hazard ratio	95% CI	P-value
F₁	Inferolateral ST deviation	0.91	0.72–1.14	0.39
F₅	Inferolateral T-wave height and orientation	1.17	0.92–1.48	0.19
F₆	P-wave height and/or shape	1.14	0.90–1.44	0.27
F₈^a	PR-interval (high values associated with first degree AV-block and reduced LVEF)	1.61	1.29–1.99	<0.005
F₉	T-wave height and orientation	1.12	0.89–1.39	0.34
F₁₀	Ventricular rate	0.93	0.76–1.13	0.46
F₁₁	Subtle P- and T-wave changes	1.00	0.83–1.21	0.97
F₁₂	Onset of depolarization	1.08	0.86–1.36	0.50
F₁₃	Anterior ST deviation	0.85	0.68–1.06	0.14
F₁₅^a	P-wave height and P/T-overlap (low values associated with third-degree AV-block and junctional tachycardia)	0.81	0.66–0.99	0.04
F₁₆	T-wave morphology	1.14	0.94–1.40	0.19
F₁₇	Lateral ST deviation	1.08	0.85–1.38	0.51
F₁₉	Precordial R-wave progression and combined P-QRS-T-amplitude	1.07	0.87–1.33	0.51
F₂₂	Subtle T-wave changes	1.02	0.83–1.25	0.85
F₂₃	P-wave height and/or shape	1.13	0.93–1.37	0.21
F₂₅^a	Right bundle branch delay (low values associated with ventricular tachycardia, RBBB, and reduced LVEF)	0.77	0.62–0.95	0.02
F₂₆	Left bundle branch delay	1.02	0.81–1.29	0.85
F₂₇^a	P- and R-axis deviation (low values associated with AF, junctional bradycardia, ventricular tachycardia, and left axis deviation)	0.71	0.57–0.88	<0.005
F₃₀	QR interval	0.92	0.74–1.16	0.48
F₃₁	QRS-T amplitudes	0.86	0.71–1.05	0.15
F₃₂^a	QRS-T amplitudes (high values associated with microvoltages)	1.26	1.02–1.55	0.03

Results of Cox regression and explanation of (significant) factors including their association with known electrocardiographic and echocardiographic pathologies as described in Van de Leur and Bos et al.⁸

Significant.

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