ED was measured using the short form International Index of Erectile Function. A case of treated hyperlipidemia was defined by use of anti-lipemics in the past month, while untreated hyperlipidemia was serum total cholesterol>or =240 milligrams per deciliter with no anti-lipemic use. We estimated associations using odds ratios (ORs) and 95% confidence intervals (CIs) from multivariate logistic regression.