A and B, Kaplan-Meier cumulative survival function curves for hard CHD and CVD events by ED status. C, Cox proportional hazard ratios (95% CIs) of hard CHD and CVD events by ED status. *P value by log-rank testing. †Model 1 adjusted for age, race/ethnicity and education. ‡ Model 2 adjusted for Model 1 + smoking status, diabetes, family history of CHD, Total/HDL cholesterol ratio, systolic blood pressure, anti-hypertensive medication use and lipid lowering medication use. §Model 3 adjusted for Model 2 + depression and beta blocker use. CHD indicates coronary heart disease; CI, confidence interval; CVD, cardiovascular disease; ED, erectile dysfunction; and HDL, high-density lipoprotein.