The optimal diagnostic strategies for patient with coronary artery diseases and stable chest pain syndrome: a cost-effectiveness analysis

The Egyptian Heart Journal

Table 2 Input data for decision tree model

Parameters	Mean	Min	Max	Distribution	α	β	Source
Probabilities
ECHO^b	0.2	0.198	0.199				^a
SPECT^c	0.291	0.166	0.418				^a
EX-ECG^d	0.146	0.057	0.210				^a
CTA^e	0.031	0.031	0.031				^a
CMRI^f	0.636	0.636	0.636				^a
CA^g	0.98	0.96	1.000				^a
Sensitivity, %
EX-ECG	65	42	92				[12]
ECHO	50	32	68				[13]
CTA	88	83	92				[12]
SPECT	87	48	88				[12]
CMRI	89	88	94				[12]
CA	100	100	100				[12]
Cost ($)
ECG	0.793	0.026	7.401	Gama
EX-ECG	17.480	10.045	41.398	Gama			^a
ECHO	33.090	8.170	220.609	Gama			^a
CTA	186.610	185.203	188.018	Gama			^a
SPECT	217.845	20.045	282.492	Gama			^a
C-MRI	54.179	53.572	55.780	Gama			^a
CA	187.686	148.034	243.199	Gama			^a
Effect, %
Strategy 1	19.51			Beta	0.195	0.496	^a
Strategy 2	96.903			Beta	0.195	0.496	^a
Strategy 3	40.862			Beta	0.195	0.496	^a
Strategy 4	3.187			Beta	0.195	0.496	^a
Strategy 5	1.065			Beta	0.195	0.496	^a
Strategy 6	20.388			Beta	0.195	0.496	^a
Strategy 7	5.072			Beta	0.195	0.496	^a
Strategy 8	2.994			Beta	0.195	0.496	^a
Strategy 9	63.636			Beta	0.195	0.496	^a