Table 4.

Characteristics of N = 38 participants for the Kansas City Cardiomyopathy Questionnaire sub-study

Variable
Female (%)	21 (55.3)
Age: mean (SD)	81.9 (7.3)
BMI: mean (SD)	26.8 (6.0)
Diabetes (%)	8(21.1)
Smoking (%): never	21 (55.3)
Ex	17 (44.7)
Creatinine: mean (SD)	90.9 (33.6)
Previous MI (%)	10 (26.3)
History of pulmonary disease	12 (31.6)
Pre-operative arrhythmia	17 (44.7)
Previous cardiac surgery	13 (34.2)
Previous PCI	9 (23.7)
Left Ventricular Ejection Fraction:
≥ 50%	32 (84.2)
30–49%	5 (13.1)
< 30%	1 (2.6)
KCCQ overall summary: mean (SD)	72.6 (22.6)
KCCQ clinical summary: mean (SD)	73.6 (21.6)