burrowse commented 7 months ago

Should drug_exposure.quantity be recalculated if a patient discontinues a drug

CDM or THEMIS convention?

Themis

Table or Field level?

Field

Is this a general convention?

No

Summary of issues

Patients can choose to discontinue drugs, which may make the quantity of a drug look inconsistent with the duration of a drug for a given patient when looking at start and end dates
The question then becomes, should drug_exposure.quantity be recalculated if a patient discontinues a drug?

Summary of answer

From forum discussion, quantity should represent the actual quantity of the drug dispensed and should not be recalculated/inferred based on dates if a patient discontinues a drug.

Issue # and location

Issue summary

Patients can choose to discontinue drugs, which may make the quantity of a drug look inconsistent with the duration of a drug for a given patient when looking at start and end dates The question then becomes, should drug_exposure.quantity be recalculated if a patient discontinues a drug?

Convention type

Table

CDM table

Drug_Exposure

CDM field

quantity

Links to issue discussion

Format as follows:

Provenance of data

All

The ratified convention

The quantity should represent the actual quantity of the drug dispensed and should not be recalculated/inferred based on dates if a patient discontinues a drug.

Date of ratification/published

Downstream implications

No

Link to DQD check

No

Related conventions/further information

#Tags drug_exposure, medication, quantity, calculation, infer

clairblacketer commented 6 months ago

@MelaniePhilofsky I am going to open this back up until it is built into the repo

clairblacketer commented 6 months ago

https://github.com/OHDSI/Themis/pull/151

OHDSI / Themis