{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,23]],"date-time":"2026-07-23T07:14:58Z","timestamp":1784790898695,"version":"3.55.0"},"reference-count":0,"publisher":"University of Toronto Press Inc. (UTPress)","issue":"2","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Clinical and Investigative Medicine"],"published-print":{"date-parts":[[2016,4,2]]},"abstract":"Purpose<\/jats:title> The positive predictive value (PPV) of carotid endarterectomy (CEA) and carotid artery stenting (CAS) procedure and post-operative complication coding were assessed in Ontario health administrative databases. <\/jats:p><\/jats:sec>Methods<\/jats:title> Between 1 April 2002 and 31 March 2014, a random sample of 428 patients were identified using Canadian Classification of Health Intervention (CCI) procedure codes and Ontario Health Insurance Plan (OHIP) billing codes from administrative data. A blinded chart review was conducted at two high-volume vascular centers to assess the level of agreement between the administrative records and the corresponding patients' hospital charts. PPV was calculated with 95% confidence intervals (CIs) to estimate the validity of CEA and CAS coding, utilizing hospital charts as the gold standard. Sensitivity of CEA and CAS coding were also assessed by linking two independent databases of 540 CEA-treated patients (Ontario Stroke Registry) and 140 CAS-treated patients (single-center CAS database) to administrative records. <\/jats:p><\/jats:sec>Results<\/jats:title> PPV for CEA ranged from 99% to 100% and sensitivity ranged from 81.5% to 89.6% using CCI and OHIP codes. A CCI code with a PPV of 87% (95% CI, 78.8-92.9) and sensitivity of 92.9% (95% CI, 87.4-96.1) in identifying CAS was also identified. PPV for post-admission complication diagnosis coding was 71.4% (95% CI, 53.7-85.4) for stroke\/transient ischemic attack, and 82.4% (95% CI, 56.6-96.2) for myocardial infarction. <\/jats:p><\/jats:sec>Conclusions<\/jats:title> Our analysis demonstrated that the codes used in administrative databases accurately identify CEA and CAS-treated patients. Researchers can confidently use administrative data to conduct population-based studies of CEA and CAS. <\/jats:p><\/jats:sec>","DOI":"10.25011\/cim.v39i2.26483","type":"journal-article","created":{"date-parts":[[2017,5,2]],"date-time":"2017-05-02T11:32:34Z","timestamp":1493724754000},"page":"E73-E78","source":"Crossref","is-referenced-by-count":23,"title":["Validation of Carotid Artery Revascularization Coding in Ontario Health Administrative Databases"],"prefix":"10.3138","volume":"39","author":[{"given":"Mohamad A","family":"Hussain","sequence":"first","affiliation":[{"name":"Divisions of Vascular Surgery, Toronto, Ontario, Canada"},{"name":"Department of Surgery, University of Toronto, Toronto, Ontario, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Muhammad","family":"Mamdani","sequence":"additional","affiliation":[{"name":"Li Ka Shing Knowledge Institute of St. Michael\u2019s Hospital, Toronto, Ontario, Canada"},{"name":"Institute of Health Policy, Management, and Evaluation of the University of Toronto, Toronto, Ontario, Canada"},{"name":"The Leslie Dan Faculty of Pharmacy of the University of Toronto, Toronto, Ontario, Canada"},{"name":"Applied Health Research Centre, Toronto, Ontario, Canada"},{"name":"King Saud University-Li Ka Shing Collaborative Research Program, and the Department of Surgery, King Saud University, Riyadh, Kingdom of Saudi Arabia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gustavo","family":"Saposnik","sequence":"additional","affiliation":[{"name":"Neurology, Toronto, Ontario, Canada"},{"name":"Li Ka Shing Knowledge Institute of St. Michael\u2019s Hospital, Toronto, Ontario, Canada"},{"name":"Department of Medicine, University of Toronto, Toronto, Ontario, Canada"},{"name":"Institute of Health Policy, Management, and Evaluation of the University of Toronto, Toronto, Ontario, Canada"},{"name":"Institute for Clinical Evaluative Sciences, Toronto, Ontario, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jack V","family":"Tu","sequence":"additional","affiliation":[{"name":"Department of Medicine, University of Toronto, Toronto, Ontario, Canada"},{"name":"Institute of Health Policy, Management, and Evaluation of the University of Toronto, Toronto, Ontario, Canada"},{"name":"Institute for Clinical Evaluative Sciences, Toronto, Ontario, Canada"},{"name":"Division of Cardiology, Schulich Heart Centre, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"David","family":"Turkel-Parrella","sequence":"additional","affiliation":[{"name":"Neurosurgery of St. Michael\u2019s Hospital, Toronto, Ontario, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Julian","family":"Spears","sequence":"additional","affiliation":[{"name":"Neurosurgery of St. Michael\u2019s Hospital, Toronto, Ontario, Canada"},{"name":"Li Ka Shing Knowledge Institute of St. Michael\u2019s Hospital, Toronto, Ontario, Canada"},{"name":"Department of Surgery, University of Toronto, Toronto, Ontario, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mohammed","family":"Al-Omran","sequence":"additional","affiliation":[{"name":"Divisions of Vascular Surgery, Toronto, Ontario, Canada"},{"name":"Li Ka Shing Knowledge Institute of St. Michael\u2019s Hospital, Toronto, Ontario, Canada"},{"name":"Department of Surgery, University of Toronto, Toronto, Ontario, Canada"},{"name":"King Saud University-Li Ka Shing Collaborative Research Program, and the Department of Surgery, King Saud University, Riyadh, Kingdom of Saudi Arabia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1696","container-title":["Clinical and Investigative Medicine"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/cimonline.ca\/index.php\/cim\/article\/viewFile\/26483\/19667","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/utppublishing.com\/doi\/pdf\/10.25011\/cim.v39i2.26483","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,3,13]],"date-time":"2025-03-13T18:36:41Z","timestamp":1741891001000},"score":1,"resource":{"primary":{"URL":"https:\/\/utppublishing.com\/doi\/10.25011\/cim.v39i2.26483"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2016,4,2]]},"references-count":0,"journal-issue":{"issue":"2","published-print":{"date-parts":[[2016,4,2]]}},"alternative-id":["10.25011\/cim.v39i2.26483"],"URL":"https:\/\/doi.org\/10.25011\/cim.v39i2.26483","relation":{},"ISSN":["1488-2353"],"issn-type":[{"value":"1488-2353","type":"electronic"}],"subject":[],"published":{"date-parts":[[2016,4,2]]}}}