Brian Nordberg - AcademyHealth

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MetadataVistA contains 78,301 distinct data fields over 9675different files (~tables)The Medicine Package 1 of~100 packages in VistA
Metadata Sources• Corporate Data Warehouse (fully merged data)• Outpatient data• Vitals• More on the way• VA Information Resource Center (VIReC) (Data infiles by VISN per year ‐ so 23 files per year)• Medical SAS datasets• Encounters• Demographics• Decision Support Systems• Labs (~50 most frequent lab tests)• Utilization• Some pharmacy (150 most frequent PHA prescriptions)• Budget and Cost
Page 1 and 2: Case Study: Merging EMR datafrom VA
Page 3 and 4: National Data ‐The Good,Bad and U
Page 5: Areas of Focus• Metadata -Where a
Page 9 and 10: Simple Queries of MetadataHere we w
Page 11 and 12: Other Stations Put EF Data in Notes
Page 13 and 14: 300025002000150010005000Validating
Page 15 and 16: Aggregating the Data and HandlingDa
Page 17 and 18: Data CodingOutliers may skew analys
Page 19 and 20: Data Conversions14000000Race1200000
Page 21 and 22: Creatinine Lab Test Names Counts Mi
Page 23 and 24: Coding of Text Documents at Each Si
Page 25: What Do We Do?• Metadata ‐ data

Brian Nordberg - AcademyHealth

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