Table 1.

Model parameters for a situation with and without PO screening added to physical examination

	Situation with PO screening		Situation without PO screening
Parameter	Value	Source	Value	Source
CCHD positive children
% screen positive by clinical examination and/or pulse oximetry	54.5%	POLAR	25.8%	Chart review
% transported by ambulance if screen positive	50.0%	POLAR	50.0%	POLAR*
% physical examination if screen positive	100%	POLAR	100%	Expert opinion
% cardiac ultrasound if screen positive	100%	POLAR	100%	Expert opinion
CCHD negative children
% screen positive by pulse oximetry	0.9%	POLAR	–	–
% screen positive by clinical examination	0.4%	Assumption based on previous studies literature (3, 33, 34)	0.4%	Assumption based on previous studies literature (3, 33, 34)
% transported by ambulance if screen positive	2.2%	POLAR	2.2%	POLAR*
% physical examination if screen positive	100%	POLAR	100%	Expert opinion
% cardiac ultrasound if PO screen positive	18.1%	POLAR	–	–
% cardiac ultrasound if PE screen positive	100%	Expert opinion	100%	Expert opinion

PE physical examination

*Assumed to be the same as in PO/PE screening group