Association between comorbidity and erectile dysfunction in patients with diabetes.

The aims of this study were to determine the prevalence of erectile dysfunction (ED) and its relationship with comorbidity in patients with diabetes. The study population comprised of 312 consecutive patients aged 20 years or over residing in the city of Hamadan in Iran in 2005. Depression was assessed by the modified version of the Beck Depression Inventory (BDI-II) and ED by the short form of the International Index of Erectile Function (IIEF-5) questionnaire. Potential confounding was controlled by stratification and by a logistic regression model. The prevalence of moderate or complete ED (IIEF score