Table 3.

Univariate and multivariate linear regression analyses of variables correlated with the activity in atrium and atrial appendage

	Univariate linear regression		Multivariate linear regression
	r	P value	B ± SE	(95% CI)	P value	Adjusted R2
Atrium						0.225
Age, years	0.112	0.44	0.015 ± 0.013	− 0.011 to 0.041	0.255
LAVI, ml/m2	0.191	0.19	− 0.017± 0.014	− 0.046 to 0.012	0.238
RA area, cm2	0.163	0.26	0.038 ± 0.036	− 0.035 to 0.112	0.296
SUVmax of RCA	0.245	0.093	1.39 ± 0.375	0.635 to 2.146	< 0.001
Atrial appendage						0.387
LAVI, ml/m2	0.336	0.02	− 0.01 ± 0.01	− 0.029 to 0.009	0.29
RA area, cm2	0.279	0.06	0.036 ± 0.024	0.012 to 0.083	0.13
SUVmax of LV	0.384	0.007	0.015 ± 0.024	− 0.033 to 0.063	0.54
SUVmax of RCA	0.593	0.000	1.183 ± 0.295	0.587 to 1.778	< 0.001

LAVI, left atrium volume index; RA, right atrium; SUV_max, maximum standardized uptake value; LV, left ventricle; RCA, right coronary artery