Figure 3. Relationship of clinical variables and treatment procedures in International Index of Erectile Function-Erectile Function Domain (IIEF-EF). (a) The studies using the 9-week protocol of LI-ESWT more possibly contributed to effective treatment (risk ratio [RR]: 4.40; 95% confidence interval [Cl]: 1.18-16.38; p=0.25), than using 5-week protocol (RR: 1.16; 95% Cl: 0.71-1.90), although it did not reach statistical significance (p=0.06). (b) LI-ESWT for PDE5I non-responders more possibly contributed to effective treatment (RR: 15.50; 95% Cl: 0.98-245.34), than for responders (RR: 1.81; 95% Cl: 0.64-5.11; p = 0.04), but it did not reach statistical significance neither (p=0.15).
