2018
DOI: 10.25011/cim.v41i3.30858
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Validation of abdominal aortic aneurysm repair codes in Ontario administrative data

Abstract: Purpose: To determine the positive predictive values (PPV) of Ontario administrative data codes for the identification of open (OSR) and endovascular (EVAR) repairs of elective (eAAA) and ruptured (rAAA) abdominal aortic aneurysms. Methods: We randomly identified 319 eAAA and rAAA repairs at two Toronto hospitals between April 2003 and March 2015, using administrative health data in Ontario, Canada. International Statistical Classification of Diseases and Related Health Problems 10th Revision (IC… Show more

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Cited by 13 publications
(16 citation statements)
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“…Combinations of the International Statistical Classification of Diseases and Related Health Problems, Tenth Revision, Canadian Revision ; Canadian Classification of Health Intervention ; and Ontario Health Insurance Plan diagnostic, procedure, and billing codes were used according to a previously validated algorithm. 22 This algorithm identified EVAR (infrarenal) and OSR (infrarenal, pararenal, and juxtarenal) with 96% and 95% positive predictive values, respectively. Patients with multiple AAA repair procedures listed on their index admission were excluded owing to an inability to establish appropriate event chronology and, thus, the primary procedure.…”
Section: Methodsmentioning
confidence: 99%
See 1 more Smart Citation
“…Combinations of the International Statistical Classification of Diseases and Related Health Problems, Tenth Revision, Canadian Revision ; Canadian Classification of Health Intervention ; and Ontario Health Insurance Plan diagnostic, procedure, and billing codes were used according to a previously validated algorithm. 22 This algorithm identified EVAR (infrarenal) and OSR (infrarenal, pararenal, and juxtarenal) with 96% and 95% positive predictive values, respectively. Patients with multiple AAA repair procedures listed on their index admission were excluded owing to an inability to establish appropriate event chronology and, thus, the primary procedure.…”
Section: Methodsmentioning
confidence: 99%
“…Ontario administrative data are routinely used for population-level research and have previously been thoroughly described and validated. 19,20,21,22 The specific databases used for this study are described in eTable 1 in the Supplement. This study was approved by the research ethics board at Sunnybrook Health Sciences Centre in Toronto, Ontario, Canada, and the requirement for informed consent was waived owing to the use of deidentified secondary data.…”
Section: Methodsmentioning
confidence: 99%
“…This study was conducted across two quaternary care academic cardiovascular centers in Toronto, Ontario. Previous administrative-coding validation studies using similar methodology have been performed, also in the province of Ontario, involving carotid artery [17] and abdominal aortic aneurysm repair [18,19]. These studies laid the foundation for further population-based outcome studies [20][21][22].…”
Section: Strengths and Limitationsmentioning
confidence: 97%
“…The specific data sets used for this study were the Canadian Institute for Health Information Discharge Abstract Database and Same Day Surgery Database, the National Ambulatory Care Reporting System database, the Ontario Health Insurance Plan database and the Institution Information System database. 16 Canadian Institute for Health Information databases have been the subject of one of the largest validation studies conducted internationally. 17 This reabstraction study of approximately 14 500 discharges demonstrated greater than 99% agreement regarding demographic and admission data and very high agreement, sensitivity and specificity for procedure coding.…”
Section: Data Sourcesmentioning
confidence: 99%
“…We identified patients who underwent elective and ruptured open and endovascular repair using a combination of the Canadian version of the International Statistical Classification of Diseases and Related Health Problems, 10th Revision, the Canadian Classification of Health Interventions, and Ontario Health Insurance Plan diagnostic, procedure and billing claims codes according to our validated algorithm. 16 Practice setting for each repair was identified using the teaching hospital designation from within the Institution Information System database (Appendix 1, available at www.cmajopen.ca/content/7/2/E379/suppl/DC1).…”
Section: Patient Cohortmentioning
confidence: 99%