Table 4.

Relationship Between LAVI and Repolarization Variables Using a Stepwise Multiple Regression Model

	Model 1				Model 2
	B	Standard Error	Beta	P	B	Standard Error	Beta	P
QT interval	1.785	0.273	0.315	<0.001	1.789	0.286	0.316	<0.001
QTc interval	1.023	0.272	0.185	<0.001	0.837	0.282	0.151	0.003
Tpe interval	0.283	0.137	0.106	0.039	0.249	0.142	0.093	0.081

Notes: Model 1: adjusted for age. Model 2: Fully adjusted for age, gender, body mass index, systolic blood pressure, diastolic blood pressure, triglyceride, total cholesterol, high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, fasting blood glucose and serum creatinine.

Abbreviations: LAVI, left atrial volume index; QTc, heart rate corrected QT interval according to the Bazett formula; Tpe, Tpeak-to-Tend.