Evolution of changes in IIEF-EF score, SEP2, and SEP3 in responders to LISWT (n = 24). P < 0.05 by Friedman test (∗baseline vs ∗∗Fup 3, vs ∗∗∗Fup 6, vs ∗∗∗∗Fup 9, vs ∗∗∗∗∗Fup 12). Fup 3 = 3-month follow-up; Fup 6 = 6-month follow-up; Fup 9 = 9-month follow-up; Fup 12 = 12-month follow-up; IIEF-EF = International Index of Erectile Function erectile function domain; SEP2 and 3 = questions 2 and 3 of the Sexual Encounter Profile.