Clinical outcomes of combined flow-pressure drop measurements using newly developed diagnostic endpoint: Pressure drop coefficient in patients with coronary artery dysfunction

Table 1 Summary of the characteristics of the 86 recruited patients

Variable		Study/group
Sex (M/F)		77/9
Age (yr)		61 ± 9
Ejection fraction (%)		58 ± 10
Clinical history
	Diabetes	42/86
	Hypertension	70/86
	Dyslipidemia	60/86
	Previous myocardial infarction	21/86
	Smoking history	52/86
	Family history of CAD	23/86
	LV hypertrophy	4/86
Affected artery
	LAD	43
	LCX	17
	RCA	26

M: Male; F: Female; CAD: Coronary artery disease; LV: Left ventricle; LAD: Left anterior descending; LCX: Left circumflex; RCA: Right coronary artery.

Table 2 Summary of the primary and secondary outcomes at a minimum of 1-year follow-up period

Variable		FFR < 0.75	FFR > 0.75	CDP > 27.9	CDP < 27.9	FFR < 0.80	FFR > 0.80	CDP < 25.4	CDP > 25.4
Primary outcome	Composite of MACE
	All-cause mortality	3/20	2/66	2/35	3/51	4/35	1/51	3/47	2/39
	Myocardial infarction	1/20	1/66	0/35	2/51	2/35	0/51	1/47	1/39
	Revascularization	0/20	1/66	0/35	1/52	1/35	0/51	1/47	0/39
Secondary outcome: All questions related to patients’ condition after the procedure	Q1: Health condition	7/20	1/66	7/35	1/51	7/35	1/51	7/47	1/39
	Q2: Heart attack	0/20	0/66	0/35	0/51	0/35	0/51	0/47	0/39
	Q3: Chest pain requiring medication	6/20	6/66	7/35	5/51	6/35	6/51	7/47	5/39
	Q4: Interventional procedure	5/20	3/66	4/35	4/51	5/35	3/51	4/47	4/39
	Q5: Re-hospitalization due to cardiac condition	2/20	5/66	4/35	3/51	2/35	5/51	4/47	3/39

MACE: Major adverse cardiac events; FFR: Fractional flow reserve; CDP: Pressure drop coefficient.