LAS VEGAS, NV USA (UroToday.com) - The Study of Urgent® PC versus Sham Effectiveness in Treatment of Overactive Bladder Symptoms (SUmiT) was a double-blind, randomized, sham-controlled trial demonstrating the efficacy of PTNS in treating OAB. The purpose of this secondary analysis was to evaluate the potential differences in treatment efficacy based on demographic and baseline health factors, and to analyze the treatment effect after 6 and 12 interventions.