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Table 3 Proportion of misdiagnosed and missed cases of CHD

From: Incidence and risk factors of congenital heart disease in Qingdao: a prospective cohort study

Congenital heart disease ICD-11 code no CHD after delivery (Prenatal screening with heart abnormalities) n (%) CHD after delivery (prenatal screening without heart abnormalities) n (%)
Common arterial trunk LA85.4 0(0.00%) 1(2.70%)
Partial anomalous pulmonary venous connection LA86.21 0(0.00%) 1(2.70%)
Congenital tricuspid regurgitation LA87.00 199(62.78%) 2(5.41%)
Congenital mitral regurgitation LA87.10 5(1.58%) 0(0.00%)
Atrioventricular septal defect LA87.20 1(0.32%) 1(2.70%)
Tetralogy of Fallot LA88.2 0(0.00%) 1(2.70%)
Ventricular septal defect LA88.4 73(23.03%) 20(54.05%)
Hypoplastic left heart syndrome LA89.3 0(0.00%) 1(2.70%)
Congenital pulmonary valvar stenosis LA8A.00 3(0.95%) 1(2.70%)
Congenital pulmonary regurgitation LA8A.01 30(9.46%) 0(0.00%)
Congenital aortic regurgitation LA8A.21 1(0.32%) 0(0.00%)
Vascular ring LA8B.2Y 0(0.00%) 5(13.51%)
Congenital anomaly of great arteries including arterial duct, unspecified LA8B.Z 5(1.58%) 0(0.00%)
Atrial septal defect LA8E 0(0.00%) 2(5.41%)
Multiple structural developmental anomaly of heart or great vessels LA8Y 0(0.00%) 1(2.70%)
Left ventricular cyst LA8Y 0(0.00%) 1(2.70%)
Total   317(100.00%) 37(100.00%)