Table 2.

Outline of the current CHD-Biobank DNA collection

Participant classification		Number
Donors	Affected donors	2928
	Non-affected donors	1674
Families with	2 affected members	102
	3 affected members	24
	4 affected members	3
Trios (patient plus healthy parents)		453
Enrolled twin pairs	Monozygotic	15
	Dizygotic	19
	Status still unknown	13