The Egyptian Heart Journal

Table 2 Baseline clinical data in the 3 groups

From: Periprocedural and clinical outcomes of percutaneous coronary intervention of chronic total occlusions in patients with low- and mid-range ejection fractions

Variable	G (N) (nom. = 25)	G (M) (nom. = 25)	G (L) (nom. = 25)	p value
Variable	Nom. (%)	Nom. (%)	Nom. (%)	p value
CCS class
1, 2 3, 4	3 (12%) 22 (88%)	10 (40%) 15 (60%)	13 (52%) 12 (48%)	0.01*
NYHA class
1, 2 3, 4	19 (76%) 6 (24%)	15 (60%) 10 (40%)	7 (28%) 18 (72%)	0.002*

Data are expressed as numbers (%)
CCS: Canadian Cardiovascular Society; G (N): normal LVEF group, G (M): mid-range LVEF group, G (L): low LVEF group; NYHA: New York Heart Association, *:significant

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