Table 2.

Inclusion and exclusion criteria.

	Included	Excluded
	Primary research	Opinion pieces
	Qualitative	Case studies
	Quantitative	Review papers
	Mixed methods
Type of participants	Parents of a child with CHD and another child	Bereaved siblings
	Siblings of children with CHD
	Health-care professionals with exposure to a child with CHD and their sibling
Type of outcome	Any outcome which investigated impact or experiences of siblings of children with CHD	Studies which observed medical experiences of siblings, e.g. investigations into genetic risk
		Studies observing the impact of CHD on the unwell child
Language	English