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OHDSI

46 indexed repositories · View on GitHub

CommonDataModel
Definition and DDLs for the OMOP Common Data Model (CDM)

HTML · 1082 stars
Vocabulary-v5.0
Build process for the OHDSI Standardized Vocabularies. Currently not available as independent release.

PLpgSQL · 272 stars
WebAPI
OHDSI WebAPI contains all OHDSI services that can be called from OHDSI applications

Java · 151 stars
CohortMethod
An R package for performing new-user cohort studies in an observational database in the OMOP Common Data Model.

R · 89 stars
SqlRender
This is an R package and Java library for rendering parameterized SQL, and translating it to different SQL dialects.

R · 89 stars
Athena
Web application for distributing and browsing the Standardized Vocabularies for all instances of an OMOP CDM

Java · 77 stars
FeatureExtraction
An R package for generating features (covariates) for a cohort using data in the Common Data Model.

R · 74 stars
DatabaseConnector
An R package for connecting to databases using JDBC.

R · 57 stars
Data2Evidence
Data2Evidence is an end-to-end solution for management and analysis of OMOP data - https://data2evidence.org

TypeScript · 43 stars
Hades
Health Analytics Data-to-Evidence Suite (HADES): A collection of R packages for performing analytics against the Common Data Model.

R · 30 stars
bayes-bridge
Bayesian sparse regression with regularized shrinkage and conjugate gradient acceleration

Jupyter Notebook · 21 stars
GIS

Shell · 19 stars
CohortGenerator
Cohort Generation for the OMOP Common Data Model

R · 15 stars
StudyAgent

Python · 12 stars
CohortConstructor

R · 10 stars
Atlas3
A complete reimplementation of OHDSI ATLAS for cohort definition and analysis, built with Vue 3 and TypeScript.

TypeScript · 10 stars
OhdsiShinyModules
An R package containing Shiny modules used by various OHDSI Shiny apps

R · 9 stars
PhenotypeR

R · 9 stars
MethodEvaluation
An R package for the evaluation of estimation methods

R · 7 stars
AthenaUI
UI of web application for distributing and browsing the Standardized Vocabularies for the OMOP CDM

TypeScript · 7 stars
26 more repositories live on View on GitHub

Beginner friendly Everything

Open All

add warning messages if user sets unsuitable settings Open

Difficulty 3/5 1-2 days Newbie friendliness 64/100

OHDSI/CohortSymmetry#347 · Opened Sep 19, 2026
New initiatives in biobank phenotype engineering? Open

Difficulty 5/5 Over a week Newbie friendliness 18/100

OHDSI/FeatureExtraction#335 · Opened Sep 18, 2026
Update composite cohort description and default value Open

Difficulty 2/5 1-3 hours Newbie friendliness 72/100

OHDSI/Picard#126 · Opened Sep 18, 2026
Make routes compatible with 2.x Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

OHDSI/Atlas3#345 · Opened Sep 18, 2026
Add another trigger for shouldRerunTask Open

Difficulty 3/5 1-2 days Newbie friendliness 68/100

OHDSI/Picard#125 · Opened Sep 18, 2026
Derived cohort label updates rename the cohort file, contrary to expected immutable file_path behavior Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 70/100

OHDSI/Picard#124 · Opened Sep 18, 2026
formatting FAQ Open

OHDSI/BookOfOhdsi-2ndEdition#64 · 1 assignee · Opened Sep 18, 2026
CI result table edits Open

enhancement

OHDSI/Characterization#103 · 1 assignee · Opened Sep 18, 2026
Misclassification of TB screening records Open

Difficulty 3/5 1-2 days Newbie friendliness 68/100

OHDSI/Vocabulary-v5.0#1299 · Opened Sep 18, 2026
sourceDisseminationScripts and sourceInputBuilderScripts should fail by default instead of continuing silently Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 52/100

OHDSI/Picard#123 · Opened Sep 18, 2026
Update README to reflect package is in CRAN Open

Difficulty 1/5 Under an hour Newbie friendliness 92/100

OHDSI/CohortIncidence#85 · 1 comment · Opened Sep 17, 2026
[D2E Redesign | DQD] Format "%Violated" records column as percentage instead decimal Open

Difficulty 3/5 1-2 days Newbie friendliness 65/100

OHDSI/Data2Evidence#3364 · Opened Sep 17, 2026
[D2E Redesign | DQD] Show Fail values in red on Data quality dashboard table Open

Difficulty 2/5 1-3 hours Newbie friendliness 76/100

OHDSI/Data2Evidence#3363 · Opened Sep 17, 2026
[D2E Redesign | DQD] Data quality check list status row to display more descriptive status Open

Difficulty 3/5 1-2 days Newbie friendliness 66/100

OHDSI/Data2Evidence#3362 · Opened Sep 17, 2026
tabulateManifest() fails on tags with null values Open

Difficulty 2/5 1-3 hours Newbie friendliness 72/100

OHDSI/Picard#122 · Opened Sep 16, 2026
Running importAtlasConceptSets doesn't allow updating the concept set label Open

Difficulty 3/5 1-2 days Newbie friendliness 68/100

OHDSI/Picard#121 · Opened Sep 16, 2026
♿️ [A11Y] Warn users when navigating away from cohort - dialog not fully detectable for screen reader Open

Difficulty 3/5 1-2 days Newbie friendliness 55/100

OHDSI/Data2Evidence#3356 · Opened Sep 16, 2026
[A11Y] D2E Accessibility Open

QA system test

OHDSI/Data2Evidence#3355 · 3 assignees · Opened Sep 16, 2026
[Cohorts] Chart toolbar buttons jumping around Open

system test

Difficulty 3/5 1-2 days Newbie friendliness 42/100

OHDSI/Data2Evidence#3354 · Opened Sep 16, 2026
Align fonts in Cohort Builder - Attrition plot Open

bug QA system test

OHDSI/Data2Evidence#3352 · 1 assignee · Opened Sep 16, 2026
Improve error reporting when cohort table existence checks fail Open

Difficulty 4/5 3-5 days Newbie friendliness 72/100

OHDSI/Picard#120 · Opened Sep 15, 2026
add adbc for compute with duckdb Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

OHDSI/OmopOnPostgres#41 · 1 comment · Opened Sep 15, 2026
adbc back on cran Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

OHDSI/OmopOnPostgres#40 · Opened Sep 15, 2026
Make sourceDisseminationScripts console output more verbose Open

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

OHDSI/Picard#119 · Opened Sep 15, 2026
[D2E Redesign | Admin | Users] User role hierarchy — Admin auto-inherits sub-roles Open

Design | UX Copy

OHDSI/Data2Evidence#3347 · 1 assignee · Opened Sep 15, 2026
[D2E Redesign | Admin | Users] Add data source Open

Design | UX Copy

OHDSI/Data2Evidence#3346 · 1 assignee · Opened Sep 15, 2026
[D2E Redesign | Admin | Users] Revoke data source access Open

Design | UX Copy

OHDSI/Data2Evidence#3345 · 1 assignee · Opened Sep 15, 2026
[D2E Redesign | Admin | Users] Approve/Reject data source access request Open

Design | UX Copy

OHDSI/Data2Evidence#3344 · 1 assignee · Opened Sep 15, 2026
Missing schema in cache file when creating a dataset using existing schema Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 35/100

OHDSI/Data2Evidence#3343 · 1 comment · Opened Sep 15, 2026
[Cohorts] Cohort materialization status is not known Open

Difficulty 4/5 3-5 days Newbie friendliness 42/100

OHDSI/Data2Evidence#3342 · Opened Sep 15, 2026
[Cohorts] Unsaved changes dialog appears on a saved cohort Open

Difficulty 3/5 1-2 days Newbie friendliness 55/100

OHDSI/Data2Evidence#3341 · Opened Sep 15, 2026
[ATLAS 3.0] Separate scrolling of left side menu and right content panel Open

Difficulty 4/5 3-5 days Newbie friendliness 58/100

OHDSI/Data2Evidence#3340 · Opened Sep 15, 2026
[ATLAS 3.0] Sticky navigation bar on scroll (Across pages) Open

Difficulty 3/5 1-2 days Newbie friendliness 68/100

OHDSI/Data2Evidence#3339 · Opened Sep 15, 2026
[D2E Redesign | FE Component] Dialog component (Vue) to be applied through out the data exploration page Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

OHDSI/Data2Evidence#3338 · Opened Sep 15, 2026
Task Change Detection Updates Open

Difficulty 5/5 Over a week Newbie friendliness 32/100

OHDSI/Picard#118 · Opened Sep 14, 2026
[D2E Redesign | Exploration | Action | DQD] To display data quality check in data quality dashboard pop up Open

Difficulty 3/5 1-2 days Newbie friendliness 68/100

OHDSI/Data2Evidence#3335 · Opened Sep 14, 2026
[D2E Redesign | Individual Data Source Page | Side Menu] Update side menu based on user permissions Open

Difficulty 4/5 3-5 days Newbie friendliness 55/100

OHDSI/Data2Evidence#3334 · Opened Sep 14, 2026
[D2E Redesign | DQD] Data quality check list Open

Difficulty 4/5 3-5 days Newbie friendliness 55/100

OHDSI/Data2Evidence#3333 · Opened Sep 14, 2026
Duckdb collect Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

OHDSI/OmopOnPostgres#24 · Opened Sep 12, 2026
Validate supporting-condition bounds at each shell prompt and test Enter default Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 68/100

OHDSI/SlashOhdsiStrategusAssistant#11 · Opened Sep 11, 2026
Synchronize phenotype_make_computable client contract for prior-event exclusions Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 45/100

OHDSI/SlashOhdsiAcpClient#5 · Opened Sep 11, 2026
Synchronize cohort-authoring shell with StudyAgent prior-event exclusion enhancement Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 48/100

OHDSI/SlashOhdsiStrategusAssistant#10 · Opened Sep 11, 2026
Add review-gated prior-event exclusion support to phenotype_make_computable Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 35/100

OHDSI/StudyAgent#94 · Opened Sep 11, 2026
Clear exec folder on pipeline runs? Open

Difficulty 3/5 1-2 days Newbie friendliness 55/100

OHDSI/Picard#117 · Opened Sep 11, 2026
Warning message summariseSequenceRatios() Missing values are always removed in SQL aggregation functions. Open

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

OHDSI/CohortSymmetry#346 · Opened Sep 11, 2026
Source input builder scripts silently skips files with the wrong name Open

Difficulty 3/5 1-2 days Newbie friendliness 68/100

OHDSI/Picard#116 · Opened Sep 11, 2026
main.R issues Open

Difficulty 1/5 1-3 hours Newbie friendliness 85/100

OHDSI/Picard#115 · Opened Sep 10, 2026
summariseClinicalRecords clock error on BigQuery Open

Difficulty 4/5 3-5 days Newbie friendliness 55/100

OHDSI/OmopSketch#613 · Opened Sep 10, 2026
informative messages in the shiny Open

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

OHDSI/PhenotypeR#704 · Opened Sep 10, 2026
Warning message summariseSequenceRatios() promise eval interrupted Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

OHDSI/CohortSymmetry#344 · Opened Sep 10, 2026

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