Table 1. General Characteristics of the Study Population .

Variable	Study Population (n = 255)
Age, year (mean ± SD)	62.57 ± 13.50
Male gender, n (%)	196 (76.9)
CAD, n (%)	173 (67.8)
Diabetes mellitus, n (%)	70 (27.5)
Hypertension, n (%)	83 (32.5)
Hyperlipidemia, n (%)	75 (29.4)
Smoking, n (%)	58 (22.7)
CRF, n (%)	90 (35.3)
EF, % (mean ± SD)	29.55 ± 11.91
EF < 35%, n (%)	169 (66.2)

Abbreviations: CAD, Coronary artery disease; CRF, Chronic renal failure; EF, Ejection fraction; SD, Standard deviation