Figure 4.

Severity of erectile dysfunction by the International Index of Erectile Function (Erectile Function domain) at baseline and tadalafil treatment months 1, 6 and 12 among men continuing to take tadalafil (10–20 mg) at 12 months (n = 1319). Reproduced from Roumeguère et al. (109). Reproduced with permission of Blackwell Publishing Ltd., Roumeguère T, Verheyden B, Arver S et al. Therapeutic response after first month of tadalafil treatment predicts 12 months treatment continuation in patients with erectile dysfunction: results from the DETECT study. © 2008 International Society for Sexual Medicine