EPIC Urinary Incontinence Domain. (a) Patients were stratified to three groups: severe (0–49), moderate (50–69) and mild (70–100). (b) Average EPIC urinary incontinence domain scores at baseline and following SBRT for prostate cancer. Thresholds for clinically significant changes in scores (½ standard deviation above and below the baseline) are marked with dashed lines. EPIC scores range from 0–100 with higher values representing a more favorable health-related QOL.