TABLE 5.

Multivariate regression analysis: Independent predictors of maximal left atrial (LA) volume in controls, and in patients with dilated cardiomyopathy and other cardiac diseases

	Healthy controls* (n=100)			Dilated cardiomyopathy†(n=94)			Aortic stenosis, HCMP, hypertension‡(n=306)
Variable	Beta	P	Variable	Beta	P	Variable	Beta	P
Systolic blood pressure, mmHg	0.24	0.008	LV EDV, mL/m3	0.35	0.001	LV mass, g/m2.7	0.31	<0.001
LV mass, g/m2.7	0.30	<0.001	LV mass, g/m2.7	0.25	0.003	LV EDV, mL/m3	0.24	<0.001
LV EDV, mL/m3	0.22	0.02	PAWP, mmHg	0.24	0.005	LA systolic force, kdynes	0.21	<0.001
Age, years	0.19	0.03	Body mass index, kg/m2	0.10	0.04	Age, years	0.10	0.04

^*r=0.50, standard error of estimation (SEE) = 1.85, P<0.001;

^†r=0.69, SEE=3.3, P<0.001;

^‡r=0.64, SEE=2.2, P<0.001. EDV End-diastolic volume; HCMP Hypertrophic cardiomyopathy; LV Left ventricular; PAWP Pulmonary artery wedge pressure