Informatics for Integrating Biology and Bedside (i2b2) is an informatics framework to leverage existing data for cohort identification, retrospective data analysis, feasibility study and hypothesis generation. i2b2 is an open-source system that was originally developed at Partners HealthCare System in Boston, Massachusetts, through NIH funding. i2b2 provides an interactive tool for querying and exporting of data by end-users and does not require knowledge of any technical programming languages.

i2b2 is a self service, fasting computing and user friendly tool. Apart from just numbers you can also visualize with demographic, medications and diagnosis breakdowns and compare two population sets. You can find a demo at NextGenBiomedicalInformatics-PublicLibrary