According to the discussion in:
the attributes of cancer should be under the “Measurement” domain.
As a result, we are looking into remapping some of our codes that have previously been mapped to Observation, to change them to Measurement.
For example, here is an entry from a Breast Cancer pathology report:
Anterior Margin in Millimeters (mm): 0.7mm
Previously we have this information mapped to:
Concept id: 3168340
Concept name: Distance from malignancy to anterior surgical margin in excised surgical specimen of breast
Domain id: Observation
And now, we are looking into remapping it to:
Concept id: 4160787
Concept name: Distance of invasive carcinoma of breast from closest surgical margin in excised breast specimen
Domain id: Measurement
When our team is discussing this case, we wonder, what if we keep this same piece of information in both places in the OMOP tables - “Observation” and “Measurement”. Information-wise, this does not seem to be wrong. And from the search perspective, technically speaking, this may provide more venues for the subject person to be identified for the cohort discovery.
I wonder if anyone has tried to store the same piece of information in multiple domains? Will this approach cause any issue later? I hope to hear feedback from the community.