Table 1.

Results of Logistic Regression Analysis

Variable	Unadjusted Analysis			Adjusted Analysis
	OR	p Value	95% Confidence Interval	OR	p Value	95% Confidence Interval
Age (per 10 yrs)	1.53	<0.0001	1.33–1.76	1.60	<0.0001	1.36–1.89
Male	3.02	<0.0001	2.00–4.65	2.33	<0.0001	1.44–3.83
LVEF (per 10%)	0.76	<0.001	0.66–0.87	—	—	—
RVEF (per 10%)	0.71	<0.0001	0.62–0.80	0.79	<0.0001	0.67–0.92
TTNtv positive	1.76	0.05	1.01–3.08	2.90	0.002	1.48–5.78
LAVi (per 1 ml/m2)	1.03	<0.0001	1.02–1.04	1.03	<0.0001	1.02–1.04
LGE present	1.32	0.13	0.92–1.89	—	—	—
FHx DCM	0.59	0.06	0.34–1.00	—	—	—
FHx SCD	0.62	0.09	0.35–1.06	—	—	—

Results of logistic regression model of predictors of early arrhythmias in dilated cardiomyopathy (DCM). Variables with p < 0.10 from the univariable analysis were considered for inclusion in an optimized multivariable model, created using backward stepwise selection until only significant variables remained. Truncating variant in titin (TTNtv) was added to this optimized model.

FHx = family history; LAVi = indexed left atrial volume; LGE = midwall fibrosis late gadolinium enhancement; LVEF = left ventricular ejection fraction; RVEF = right ventricular ejection fraction; SCD = sudden cardiac death.