TABLE 2.

Mean IIEF-5 score at baseline, 6 months, and 1 year

Each IIEF-5 domain was scored from 0 to 5 or 1 to 5: 0, the absence of sexual activity; 1, very low/almost never or never/extremely difficult; 2, low/a few times/very difficult; 3, moderate/sometimes/difficult; 4, high/most times/slightly difficult; and 5, very high/almost always or always/not difficult; the total IIEF-5 score was calculated by totaling and taking the mean of the responses to all 5 domains of IIEF-5.

IIEF-5, the abridged five-item version of the International Index of Erectile Function questionnaire; SD, standard deviation.

^a:p<0.05, 6 months vs. 12 months (Wilcoxon's rank sum test).