Automated data extraction--a feasible way to construct patient registers of primary care utilization.

Upsala Journal of Medical Sciences
M MartinellJohan Hallqvist

Abstract

Electronic medical records (EMRs) enable analysis of health care data by using data mining techniques to build research databases. Though the reliability of the data extraction process is crucial for the credibility of the final analysis, there are few published validations of this process. In this paper we validate the performance of an automated data mining tool on EMR in a primary care setting. The Pygargus Customized eXtraction Program (CXP) was programmed to find and then extract data from patients meeting criteria for type 2 diabetes mellitus (T2DM) at one primary health care clinic (PHC). The ability of CXP to extract relevant cases was assessed by comparing cases extracted by an EMR integrated search engine. The concordance of extracted data with the original EMR source was manually controlled. Prevalence of T2DM was 4.0%, which correspond well to previous estimations. By searching for drug prescriptions, diagnosis codes, and laboratory values, 38%, 53%, and 91% of relevant cases were found, respectively. The sensitivity of CXP regarding extraction of relevant cases was 100%. The specificity was 99.9% due to 12 non-T2DM cases extracted. The congruity at single-item level was 99.6%. The 13 incorrect data items were all l...Continue Reading

References

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Citations

May 10, 2012·Scandinavian Journal of Infectious Diseases·Arne WikströmCecilia Young
Aug 4, 2015·International Journal of Clinical Practice·A Ekberg-JanssonF Nilsson
Jul 29, 2015·Journal of Evaluation in Clinical Practice·Jose M Morales-AsencioJuan C Morilla-Herrera
Dec 3, 2014·Journal of Biomedical Informatics·Markus KreuzthalerAndrea Berghold
May 25, 2016·Diabetes Therapy : Research, Treatment and Education of Diabetes and Related Disorders·Marcus LindGunnar Johansson
Dec 5, 2018·Nordic Journal of Psychiatry·Nawal Bent-EnnakhilJean-Philippe Empana
Dec 19, 2013·Primary Care Respiratory Journal : Journal of the General Practice Airways Group·Björn StällbergKarin H Lisspers
Feb 7, 2020·Pulmonary Therapy·Giovanni FerraraC Magnus Sköld
Mar 25, 2021·International Journal of Chronic Obstructive Pulmonary Disease·Björn StällbergGunnar Johansson

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Software Mentioned

Pygargus
Pygargus Customized eXtraction Program ( CXP )
Profdoc
eXtractor
EMR
CXP

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