Study on the Potential Biomarkers of Maternal Urine Metabolomics for Fetus with Congenital Heart Diseases Based on Modified Gas Chromatograph-Mass Spectrometer

Table 2

The constitue of case group.

Types of CHD	case	Proportion (%)
VSD (ventricular septal defects)	27	38.57
TOF(Tetralogy of Fallot)	10	13.73
Aortic abnormalities (including stenosis, dividing, right side aortic arch)	8	11.43
Complex CHD	5	7.14
AVSD(atrioventricular septal defect)	5	7.14
Pulmonary arterial abnormality(including stenosis, Atresia and left or right heart dysplasia)	3	4.29
endocardial cushion defect	3	4.29
Tricuspid regurgitation	3	4.29
Single atrium/single ventricle	4	5.71
DORV(Right ventricular double outlet)	2	2.86
total	70	100