checking in on healthcare data analytics
TRANSCRIPT
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Checking in on healthcare data analytics
Christopher NauglerAssociate Professor
Pathology and Laboratory MedicineUniversity of Calgary
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Healthcare data
• Transformative changes:– Accrual of large historic datasets– Interoperability of systems– Data warehouses
• Opportunities– Provide epidemiological data– Assess value in health spending– Provide new insights for increasing value
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Challenges
• Traditional analytic techniques not scalable to big data
• Trans border data flows into the United States and the USA PATRIOT Act
• Need bricks and mortar big data solutions• Lack of infrastructure• Lack of expertise
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What is big data in pathology?
• Genome sequences: bioinformatics– Shah NH. Translational bioinformatics embraces big data.
Yearbook of Medical Informatics 2011:7:130-134.• Imaging analysis and storage
– Mohammed EA, Far BH, Naugler C. Peripheral Blood Smear Image Analysis: A comprehensive review. Journal of Pathology Informatics 2014;5:9
• Massive lab/clinical datasets– Mohammed EA, Far BH, Naugler C. Applications of the
MapReduce Programming Framework to Clinical Big Data Analysis: Current Landscape and Future Trends. BioData Mining, in press
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Example – Calgary Laboratory data
• Since 2010: 125,000,000 lab tests• Each with 100+ pieces of metadata
– 1.25 x 1010 data elements• Linkage to demographic, pharmacy,outcomes
data– 1.25 x 1012 data elements
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23-05-01 6
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Calgary TSH Test
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Edmonton TSH Test
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Total expenditures by specialty
•Naugler C, Thomas R, Turin TC, Guo M, Vaska M. Am J Clin Pathol in press
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Laboratory testing costs by physicianN
umbe
r of p
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Yearly cost of laboratory tests ($CDN)
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Redundant laboratory tests
• Morgen E, Naugler C. Am J Clin Pathol in press
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Abnormal Rate per Number of Tests
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ROCs for FIT screening
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PSA testing in the city of Calgary
Gorday, W, Sadzradeh H, de Koning L, Naugler C. Sociodemographic variables associated with PSA testing. Clin Biochem 2014;47:164-169.
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Colon Cancer Screening
• There is marked variation in screening rates throughout Calgary, related to a number of sociodemographic factors
• Crouse AL, Sadrzadeh H, de Koning L, Naugler C. Clin Biochem 2015;48:105-109.