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Validity of Administrative Data for Identifying Patients Who Have Had a Stroke or Transient Ischemic Attack Using EMRALD as a Reference Standard

Surveillance for stroke/transient ischemic attack (TIA) using administrative data has traditionally been limited to reporting patients who had an acute event and were hospitalized. This underestimates the true prevalence because many events do not result in hospitalization. We examined whether the a... Full description

Journal Title: Canadian Journal of Cardiology November 2013, Vol.29(11), pp.1388-1394
Main Author: Tu, Karen
Other Authors: Wang, Myra , Young, Jacqueline , Green, Diane , Ivers, Noah M , Butt, Debra , Jaakkimainen, Liisa , Kapral, Moira K
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 0828-282X ; E-ISSN: 1916-7075 ; DOI: 10.1016/j.cjca.2013.07.676
Link: https://www.sciencedirect.com/science/article/pii/S0828282X13011471
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recordid: elsevier_sdoi_10_1016_j_cjca_2013_07_676
title: Validity of Administrative Data for Identifying Patients Who Have Had a Stroke or Transient Ischemic Attack Using EMRALD as a Reference Standard
format: Article
creator:
  • Tu, Karen
  • Wang, Myra
  • Young, Jacqueline
  • Green, Diane
  • Ivers, Noah M
  • Butt, Debra
  • Jaakkimainen, Liisa
  • Kapral, Moira K
subjects:
  • Medicine
ispartof: Canadian Journal of Cardiology, November 2013, Vol.29(11), pp.1388-1394
description: Surveillance for stroke/transient ischemic attack (TIA) using administrative data has traditionally been limited to reporting patients who had an acute event and were hospitalized. This underestimates the true prevalence because many events do not result in hospitalization. We examined whether the accuracy of administrative data for identifying prevalent stroke/TIA could be improved by using data from both inpatient and outpatient visits. An administrative data validation reference standard was developed through chart abstraction of 5000 adult patients randomly sampled from 73,014 patients of 83 family physicians who participate in the Electronic Medical Record Administrative Data Linked Database (EMRALD), in Ontario, Canada. The prevalence of stroke/TIA in our adult population was 3.0%. An algorithm of 1 hospital record had a sensitivity of 35.3% (27.7%-43.0%) and specificity of 99.8% (99.7%-99.9%), whereas an algorithm of 2 physician billings...
language: eng
source:
identifier: ISSN: 0828-282X ; E-ISSN: 1916-7075 ; DOI: 10.1016/j.cjca.2013.07.676
fulltext: fulltext
issn:
  • 0828-282X
  • 0828282X
  • 1916-7075
  • 19167075
url: Link


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descriptionSurveillance for stroke/transient ischemic attack (TIA) using administrative data has traditionally been limited to reporting patients who had an acute event and were hospitalized. This underestimates the true prevalence because many events do not result in hospitalization. We examined whether the accuracy of administrative data for identifying prevalent stroke/TIA could be improved by using data from both inpatient and outpatient visits. An administrative data validation reference standard was developed through chart abstraction of 5000 adult patients randomly sampled from 73,014 patients of 83 family physicians who participate in the Electronic Medical Record Administrative Data Linked Database (EMRALD), in Ontario, Canada. The prevalence of stroke/TIA in our adult population was 3.0%. An algorithm of 1 hospital record had a sensitivity of 35.3% (27.7%-43.0%) and specificity of 99.8% (99.7%-99.9%), whereas an algorithm of 2 physician billings...
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titleValidity of Administrative Data for Identifying Patients Who Have Had a Stroke or Transient Ischemic Attack Using EMRALD as a Reference Standard
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Surveillance for stroke/transient ischemic attack (TIA) using administrative data has traditionally been limited to reporting patients who had an acute event and were hospitalized. This underestimates the true prevalence because many events do not result in hospitalization. We examined whether the accuracy of administrative data for identifying prevalent stroke/TIA could be improved by using data from both inpatient and outpatient visits.

An administrative data validation reference standard was developed through chart abstraction of 5000 adult patients randomly sampled from 73,014 patients of 83 family physicians who participate in the Electronic Medical Record Administrative Data Linked Database (EMRALD), in Ontario, Canada.

The prevalence of stroke/TIA in our adult population was 3.0%. An algorithm of 1 hospital record had a sensitivity of 35.3% (27.7%-43.0%) and specificity of 99.8% (99.7%-99.9%), whereas an algorithm of 2 physician billings...

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Surveillance for stroke/transient ischemic attack (TIA) using administrative data has traditionally been limited to reporting patients who had an acute event and were hospitalized. This underestimates the true prevalence because many events do not result in hospitalization. We examined whether the accuracy of administrative data for identifying prevalent stroke/TIA could be improved by using data from both inpatient and outpatient visits.

An administrative data validation reference standard was developed through chart abstraction of 5000 adult patients randomly sampled from 73,014 patients of 83 family physicians who participate in the Electronic Medical Record Administrative Data Linked Database (EMRALD), in Ontario, Canada.

The prevalence of stroke/TIA in our adult population was 3.0%. An algorithm of 1 hospital record had a sensitivity of 35.3% (27.7%-43.0%) and specificity of 99.8% (99.7%-99.9%), whereas an algorithm of 2 physician billings...

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