Which table and column should be referenced for a patient's age in immunization data?

The correct option indicates that the patient's age in the context of immunization data is best referenced from the AgeKey in the ImmunizationEventFact table. This makes sense because the ImmunizationEventFact table is specifically designed to store detailed records of immunization events, which would include key attributes such as the patient's age at the time of the immunization event.

The AgeKey serves as a direct link to age-related data, which can be crucial when analyzing vaccination patterns or compliance rates among different age groups. Capturing age accurately in immunization data is important for numerous public health assessments and for understanding the effectiveness of vaccination programs across varying demographics.

In contrast, the other options do not directly relate to the age of a patient within the context of immunization data. The HospitalAdmissionAttributedProviderDataMart.NumberOfDistinctDaysAsInpatientAttending pertains to hospital admissions and the length of inpatient stays, which is unrelated to immunization history. The PatientDim.Name column simply captures the name of the patient, which does not provide any age information. Similarly, ImmunizationDim.Name would generally refer to the type or name of the vaccine administered and also lacks age-specific details. Thus, the AgeKey in the ImmunizationEventFact table is crucial for ascertaining