ATLAS is a free, publicly available, web based open source software tool for researchers to conduct analyses. Researchers can create cohorts by defining groups of people based on an exposure to a drug or diagnosis of a particular condition using healthcare claims data. ATLAS has vocabulary searching of medical concepts to identify people with specific conditions, drug exposures etc. Patient profiles can be viewed within a specific cohort allowing visualization of a particular subject's health care records. Population effect level estimation analyses allows for comparison of two different cohorts and leverages R packages.

• Installation & Setup

• Data Sources
• Vocabulary
• Concept Sets
• Cohorts
• Jobs
• Configuration
• Feedback