Colorado University, Anschutz is currently in the process of implementing Leaf, an open source data explorer, cohort builder & extraction tool. We are using the OMOP CDM, sourced from Epic Caboodle, as our backend database.
We are in a similar position to @vramella, @jmethot & @jpallas as a honest broker delivering hundreds of datasets to researchers for use with their own analytical methods/tools.
We had tried using TriNetX for this purpose, but it’s a black box for mapping and we could never retrieve the same number of Persons as the TriNetX output for a cohort. We do have an Atlas instance for our more OHDSI savvy researchers, but it is a much more advanced tool and doesn’t allow row level export. Leaf seems more user friendly for our local researchers. See this paper by Nicolas Dobbins, et al.
If people are interested, I think a presentation/discussion about cohort building, data export, HIPAA and the tools used to enable researchers to build cohorts & extract data might be a well received topic for the EHR WG* to discuss next year. It’s not OHDSI/OMOP specific, but it does support healthcare research.
*EHR WG really is a misnomer. I think Healthcare System Discussion Group is more appropriate. EHR isn’t broad enough and we don’t assign work.