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Welcome to the i2b2 Community Wiki

The central place for the i2b2 Community to communicate and share projects with other users. Here you will find the latest information on the i2b2 Software as well as documentation on the many great plugins developed by members of the i2b2 Community.

If you are new to i2b2 or just curious what it is all about I recommend you take a look at the Getting Started page.


Please contact Janice Donahoe if you are a manager of an i2b2 related project and would like to have a site for your project created on this wiki.



What's New in i2b2

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Community Projects

Members of the i2b2 Community are continually developing plugins that enhance the standard i2b2 Software; They have graciously shared these plugins with the rest of the i2b2 community. The i2b2 Community Projects have been classified into one of three categories:

New Projects

  • Projects that have been made available to the i2b2 Community in the last 90 days.

Current Projects

  • Active projects that are being developed or implemented at community sites.

Past Projects

  • Developed for an earlier version of the i2b2 Software.
  • Development of the projects is no longer active.



New i2b2 Community Projects

The legacy i2b2 data model is comprised of a central fact table (observation_fact) surrounded by multiple dimension tables (star schema). In the Observation Medical Outcomes Partnership (OMOP) Clinical Data Model (CDM) rather than a central fact table, we have a collection of them distinguished by domain: procedures, condition, drug, measurement, observation, etc. In this project, we modify the CRC to run queries against multiple domain fact tables as dictated by the metadata.

Current i2b2 Community Projects

Loyalty Cohorts
Because electronic health records are often missing information about patients, we developed and validated a tunable computer algorithm to identify subsets of patients whose data are relatively complete and therefore better suited for clinical research studies.
Workplace Items Sharing Enhancement
A collection of webclient plugins that Enhance the Sharing of Items within the Workplace pane
Ontology Tools
Tools to extract and organize ontologies. The tools are organized by Lori Phillips. Recent additions is a library of ontologies which can be downloaded using the i2b2 workbench.
i2b2 FHIR Cell
Built by Kavishwar Wagholikar, this i2b2 addition allows SMART cells to communicate with the i2b2 core using the Fast Healthcare Interoperability Resources.
The Shared Health Research Information Network, organized by Doug MacFadden
C3-PRO FHIR Uploading Cell
C3-PRO Research Framework is an iOS framework written in Swift. Combining FHIR and ResearchKit, usually for data storage into i2b2, this framework allows you to use FHIR Questionnaire resources directly with ResearchKit and will return FHIR QuestionnaireResponse that you can send to your server. In addition, a FHIR Contract resource can be used to carry trial eligibility requirements and define content to be shown during consenting. Subsequently, the contract can be “signed” with a FHIR Patient resource and returned to your server, indicating consent.
The i2b2 Web Client Plugin that tabulates patient data & applicable specified concepts; and facilitates export to spreadsheet.
SCIHLS Disease Data Mart Request
Automated Creation of a new data mart with the SCILHS ontology for projects that are initiated by a SCILHS SHRINE query.
Medical Imaging Informatics Bench to Bedside, organized by Christopher Herrick
Clinical Trials Support for SHRINE
This plugin can be used at the i2b2 site of a SHRINE node by an administrator to create a table of patients to be contacted for a clinical trial based upon a SHRINE query.
IDRT - Integrated Data Repository Toolkit
A novel rest API that allows short restful messages to communicate with i2b2.
Federated Query Simulations
Simulations of federated query tools that return aggregate counts, such as SHRINE, by Griffin Weber
Genomic NGS Tool
Next-Generation Sequencing Genomics tools for i2b2. New Sequence Ontology and tools to import NGS data.
i2b2 Web Client
The i2b2 Web Client is one of several core projects that are directly sponsored by the i2b2 team.
Normal Patient
This plug-in contains a database script that identifies "healthy normal" patients in an i2b2 CRC cell. This is important for clinical trials that need a healthy control group. It uses a set of ten heuristic filters.
CARE - Cohort Analysis & Refinement Expeditors
A collection of webclient plugins to facilitate the analyses & refinement of Patient Set usages.
SCILHS PCORnet Common Data Model Ontology
SCILHS (with much help from others) has developed an i2b2 information model that represents the PCORnet Common Data Model (CDM). This information model consists of an i2b2 ontology/terminology and a process for mapping local data elements to the ontology without changing the underlying imported data. This approach highlights i2b2's ability to separate data model from both information model and the underlying data format.

Past i2b2 Community Projects

SNP Terminology development with VISTA
Creating Single Nucleotide Polymorphism terminologies that will survive versioning, organized by Lori Phillips
The Hospital Medicine Reengineering Network, organized by Nick Anderson
Control Matching
A server side plugin to find a set of matched controls based upon a patient set.
Incorporating Number Of Studies Query capability in i2b2
Implements an administrative interface that reports Buber of studies done in an i2b2 hive.
A project to make specimens available through i2b2 infrastructure, organized by Lynn Bry
FACE caGrid CQL2 Data Source
A caGrid/TRIAD data service that runs i2b2 queries via the RESTful interface to CRC
Health Ontology Mapper
A general purpose instance mapper and associated ETL processing function running as an i2b2 cell, organized by Rob Wynden at UCSF.
Clinical Trender
The Clinical Trender aims to allow researchers to track and visualize certain clinical variables related to a selected patient cohort in order to understand the longitudinal changes of the cohort and potentially identify early signs of significant deviates in these variables. This function is inspired by the work of Brownstein, Sordo, Kohane, and Mandl, which demonstrated the potential of elucidating important temporal trends using healthcare databases.
i2b2 wizard
Useful tool for installing i2b2 from scratch organized by Sebastian Mate
ODM to i2b2 importer
i2b2 cell to import electronic data capture (EDC) data such as data from REDCap and import into i2b2.
i2b2-based Registries
An enhanced patient registry and an associated web based toolkit, organized by Keith Marsolo
Familial, Associational, & Incidental Relationships (FAIR) Initiative.
A collection of DBA tools and webclient plugins to facilitate the identification of related concepts amongst related patients.
GIRI (Generic integration of R into i2b2)
A project to make arbitrary R functions available within the i2b2 webclient
REDCap Tools
Research Electronic Data Capture Organized by Mark Weiner
CRC Tester
A Workbench plug-in that tests the CRC web services by Mike Mendis
PopMedNet Tools
Using PopMedNet and i2b2 for Distributed Queries
Query Health
Integrating i2b2 and Query Health for standards-compliant population health management
Substitutable Medical Apps, reusable technologies i2b2 integration, organized by Nich Wattanasin
NLP cTAKES Project
A project which integrates cTAKES and i2b2 to extract concepts via NLP from clinical narrative into the i2b2 observation fact's format.
SETL - Standards-based Extract, Transform, and Load
Interoperability with standards-based clinical data formats, including HL7 Continuity of Care Documents
TimeAlign displays the records and their events in a linear, zoomable timeline that allows investigators to quickly grasp the temporal relationships of important events.