TABLE 1.

CHD subgroups

Subgroup I: expected low placenta blood content	39 (54.9)
TGA	27 (38)
HLHS	10 (14.1)
AoAD	2 (2.8)
Subgroup II: expected intermediate and high placenta blood content	32 (45.1)
TOF	11 (15.5)
VSD	5 (7)
DORV	4 (5.6)
AVSD	4 (5.6)
TA	3 (4.2)
TRUN	3 (4.2)
PS	1 (1.4)
L‐TGA	1 (4.2)

Note: Values are n (%).Abbreviations: AoAD, aortic arch defects (including coarctation of the aorta and aortic hypoplasia); AVSD, atrioventricular septal defects; CHD, congenital heart defects; DORV, double output right ventricle; HLHS, hypoplastic left heart syndrome; L‐TGA, congenitally corrected transposition of great arteries; PS, pulmonary stenosis; TA, tricuspid atresia; TGA, transposition of great arteries; TOF, tetralogy of Fallot; TRUN, truncus arteriosus; VSD, ventriculoseptal defect.