Figure 1From: Comparison of the simplified International Index of Erectile Function (IIEF-5) in patients of erectile dysfunction with different pathophysiologies The IIEF-5 scores of 3,151 patients with different pathophysiologic causes. Error bar: interquartile range. Kruskal-Wallis H test for all groups, all organic groups (except for psychogenic): P = 0.000, and P = 0.073, respectively.Back to article page