Table 2. Independent Predictors of Radial Artery Graft Failure ^a.

Variable	P Value	OR (95% CI)
Age ≥ 70, y	0.30	0.95 (0.80-1.05)
Gender (female/male)	0.04	2.56 (1.50-11.30)
LVEF ≤ 30, %	0.20	1.06 (0.95-1.18)
Risk factors, No.	0.04	0.04 (0.12-0.91)

^a Abbreviations: LVEF, left ventricular ejection fraction; OR, Operating room