Table 2.

Pearson's correlation between AP diameter and LA volume in specific categories.

Category	R1	P value
Male gender	0.574	.001
Female gender	0.768	<.001
Paroxysmal AF	0.540	<.01
Persistent AF	0.726	<.01
Interatrial block	0.61	<.0001
Without interatrial block	0.810	<.0001

AF = atrial fibrillation, AP = antero-posterior, LA = left atrium.