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OHDSI / Themis

Repository for OMOP CDM conventions as defined by THEMIS. These can be reference lists of concepts, pieces of standardized code for data generation or quality certification, and debates.
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Should we deduplicate same diagnosis records on the same claim or visit #176

Open jiawei-qian opened 2 months ago

jiawei-qian commented 2 months ago

Should we deduplicate same diagnosis records on the same claim or visit

CDM or THEMIS convention?

THEMIS

Table or Field level?

Table

Is this a general convention?

No

Summary of issues

  1. How to do if multiple same diagnosis come across on the same claim or visit. Should we eliminate the duplicate?

Below is the initially proposal raised by Erica Voss: Image

Summary of answer

  1. We will not be making a recommendation to deduplicating diagnosis. We believe the opportunity for error is higher than what would be gained. (Can keep all diagnosis records)

Related links

OHDSI Forum: https://forums.ohdsi.org/t/duplicate-diagnosis-themis-wg3/3966/28

Other comments/notes

In this OHDSI Forum post, it gives one suggestion on how to deal with duplicate (same) diagnosis records.

clairblacketer commented 2 months ago

I am not convinced this ratified. I would like to discuss with the group so I will move to needs more work.

cgreich commented 2 months ago

Interesting question. Of course, there is only one diabetes, and duplicating it does not change that fact. The only time this could make sense if there are several cases of the same disease in parallel, like everything topical: You can have two moles, and two abscesses, and in any one visit only one of them might be treated. Not sure we have the data to support that complexity, and I don't think the position should be the way to distinguish them.