510 males with ischemic heart disease were asked to fill out the abridged five-item version of the International Index of Erectile Function (IIEF-5. 90.4% (461) of the respondents reported some degree of erectile dysfunction(IIEF-5 score >22). 24.5% have mild ED; 26.7% have mild to moderate ED; 5.5% have moderate ED and 33.7% have severe ED. Age above 60 years old and diuretic are the most significant risk factors for ED by logistic regression when adjusted for all confounding factors. Other important risk factors include diabetes and hypertension. Erectile dysfunction is common among...