Figure 1From: Lack of awareness of erectile dysfunction in many men with risk factors for erectile dysfunction Erectile dysfunction severity by screening question response. IIEF-EF = Erectile Function domain of the International Index of Erectile Function. Using the IIEF-EF, erectile dysfunction severity categories are no ED (score ≥26 out of 30) mild (score 22-25), mild-to-moderate (score 17-21), moderate (score 11-16), and severe (score ≤10)[13, 14].Back to article page