Jiawei Qian

Is DEVICE_EXPOSURE.unique_device_id only related to the devices regulated by the FDA?

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For the DEVICE_EXPOSURE.unique_device_id field, is it only related to the devices regulated by the FDA? According to some OHDSI posts and GitHub issue, some people have questions about how to...

In the current CDM v5.3 and v5.4 GitHub documentation, the ETL Conventions description of DEVICE_EXPOSURE.device_type_concept_id field seems not correct. https://ohdsi.github.io/CommonDataModel/cdm54.html#device_exposure The description is below:  It says: **Choose the drug_type_concept_id...**...

How to store the reason of drug discontinuation in DRUG_EXPOSURE.stop_reason field

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# How to store the reason of drug discontinuation in DRUG_EXPOSURE.stop_reason field ## CDM or THEMIS convention? THEMIS ## Table or Field level? Field ## Is this a general convention?...

How to store ordered, prescribed, dispensed and administered drugs in DRUG_EXPOSURE table. How to distinguish them

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# How to store ordered, prescribed, dispensed and administered drugs in DRUG_EXPOSURE table. How to distinguish them ## CDM or THEMIS convention? CDM ## Table or Field level? Table ##...

How to store family history in the OBSERVATION table

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# How to store family history in the OBSERVATION table ## CDM or THEMIS convention? CDM ## Table or Field level? Table ## Is this a general convention? No ##...

Hi, I am working on April Olympians and found some fields don't have description in User Guide or ETL Conventions on CDM documentation. (https://ohdsi.github.io/CommonDataModel/cdm54.html#drug_exposure) For example, the **lot_number** field in...