Early changes in ambulatory electrocardiography after transcatheter closure in patients with atrial septal defect and factors affecting heart rate variability

Table 3 Multiple linear regression analyses on SDNN and SDANN

Dependent variable	Variable	Unstandardized coefficient		Standardized β	p Value	R²
Dependent variable	Variable	β	Std. Error	Standardized β	p Value	R²
SDNN	Age	−0.487	0.107	− 0.316	< 0.001	0.415
	Sex	−11.416	3.451	−0.213	0.001
	Defect diameter	−1.091	0.245	− 0.287	< 0.001
	Heart rate	−1.316	0.181	−0.498	< 0.001
	Diabetes	−18.990	8.059	−0.153	0.02
SDANN	Age	−0.403	0.105	−0.285	< 0.001	0.296
	Sex	−11.732	3.449	−0.240	0.001
	Defect diameter	−0.969	0.242	−0.279	< 0.001
	Heart rate	−0.840	0.181	−0.347	< 0.001

SDNN the standard deviation of all normal-to-normal (NN) intervals, SDANN the standard deviation of the averages of NN intervals in all 5 min segments of the entire recording

ISSN: 1471-2261