Which column in Caboodle would you use to find the patient's age?

The correct choice for finding a patient's age in the Caboodle data model is associated with the column under ImmunizationEventFact.AgeKey. This particular column is designed to store the relevant age information calculated or recorded at the time of an immunization event.

Using AgeKey allows practitioners or researchers to easily extract and analyze data pertaining specifically to a patient’s age in relation to various medical events, immunizations, or encounters. In a data model like Caboodle, such structured keys are vital for relational integrity and efficient data retrieval.

The other choices do not pertain to age data. HospitalAdmissionAttributedProviderDataMart.HospitalAdmissionKey pertains to identifiers tied to hospital admission events rather than age. EncounterFact.EncounterEpicCsn is more about the unique identifier for patient encounters within the healthcare system and does not directly provide age information. Lastly, ImmunizationSetDim.ValueSetEpicId = '1137225' appears to be a filter condition related to specific sets of immunization data, not the direct age of a patient. Thus, for accurate data extraction regarding a patient's age, ImmunizationEventFact.AgeKey is the appropriate and logical choice.