RESEARCH ARTICLE Trends and Patterns of Urodynamic Studies in U.S. Males, 2000–2012

Objective To evaluate trends in urodynamic procedures in the U.S. males from 2000–2012 and deter-mine if a 2010 decline in reimbursement was associated with decreased utilization. Subjects andmethods We analyzed 2000–2012 administrative healthcare claims from Truven Health’sMarketscan Database and evaluatedmales18 years of age.We identified cystometrograms and any con-current procedures using procedure billing codes. Covariates included age, year of cystometro-gram, region and associated diagnosis codes. We estimated standardized cystometrogram utilization rates per 10,000 person-years (PY). We used age, region, and calendar year adjusted Poisson regressionmodels to estimate the independent effect of calendar year and region. Results During 127,558,186 PY of observation, we identified 153,168 cystometrograms for an over-all utilization rate of 12.0 per 10,000 PY (95 % CI 11.9–12.1). Cystometrogram utilization increased with age, peaking at age 85 with a rate of 77.7 per 10,000 PY (95 % CI 74.7