Table 1. Clinical information of the iVSD patients and normal children.

	iVSD heart (n = 20)	Normal heart(n = 6)	p
Weight (kg)	6.9±1.6	7.4 ± 1.4	0.006(**)
Age (months)	6.0±1.7	5.6±0.6	0.44
Gender (male/female)	12/8	4/2	0.68
Diameter of VSD(cm)	1.0±0.16	-	-
Type of VSD	Perimembranous	-	-

** Differences were tested by two-tailed Student’s t-test.