TabsDetailsBasic DetailsDate: Monday, May 21, 2018Type: PresentationDescription: Real-world drug utilization and outcome assessments using health insurance claims or other routinely-collected electronic health data have become a common type of study in pharmacoeconomics and pharmacoepidemiology. However, these observational studies may be sensitive to parameter specifications such as outpatient pharmacy dispensing stockpiling algorithm and lead to inconsistent results. This poster examines the impact of small specificaiton changes on comparative risk assessments among drug users in a test case. Read More Materials: Small Changes, Big Differences? Cohort Variation by Parameter Specifications in Claims-Based Drug Use EvaluationsAdditional InformationInformationHost: International Society For Pharmacoeconomics and Outcomes Research Conference 2018Related Assessment(s): Sensitivity of Safety Analyses to Minor Changes in Specifications Applied to Test CaseInternational Society For Pharmacoeconomics and Outcomes Research Conference 2018 AbstractQuantifying How Small Variations in Design Elements Affect Risk in an Incident Cohort Study in ClaimsContributorsPresenter(s): Ting-Ying Huang, Laura Shockro, Ella Pestine, Michael Nguyen, Judith Maro, Rima Izem