Hello All,
I am complete novice to OMOP so please forgive me if my question is a bit naive.
How can I record an effect of a given drug on the patient condition?
In particular, the questionnaire contains the following question:
“Does the patient notice a tremor diminishment with alcohol intake?”
and possible answers are {Yes, No} or {1, 0}.
I assumed that the result could be stored as a record in the Observation Table using value_as_number property set to 1 or 0.
I checked in Athena which concepts can be related to this question and I found (I filtered Standard and Valid only):
35621943 Patient Global Impression of Improvement Staging / Scales Measurement SNOMED
35621963 Patient Global Impression of Improvement score Observable Entity Observation SNOMED
4052351 Alcohol intake Observable Entity Observation SNOMED
432456 Alcohol intake - finding Clinical Finding Observation SNOMED
43531003 Essential tremor Clinical Finding Condition SNOMED
However, I do not know how to use them to define the given observation (or even if the observation is a good guess here), since there is only one field: observation_concept_id, but there are a few concepts. Shall I extend vocabulary or just somehow encode it with use of disencouraged field: observation_source_concept_id? I was also thinking about FACT_RELATIONSHIP table to record indication relationship (between drug exposures and associated conditions), however I simply have no experience with it.
I realize that Survey Vocabularies are not a simple thing to deal with in OMOP according to the previous topics as Survey vocabularies in OMOP or Survey data mapping - Question and Response pairs and many others.
I will appreciate for any help.
Thanks
Andrzej Marciniak