Passive Surveillance of Transient Ischemic Attacks in the Emergency Department: Validity of Administrative Data and Determinants of Inaccuracies in Data Coding

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atmire.migration.oldid5184
dc.contributor.advisorHill, Michael D.
dc.contributor.advisorCoutts, Shelagh B.
dc.contributor.authorYu, Amy Y. X.
dc.contributor.committeememberQuan, Hude
dc.contributor.committeememberMcRae, Andrew D.
dc.date.accessioned2016-12-22T20:59:19Z
dc.date.available2016-12-22T20:59:19Z
dc.date.issued2016
dc.date.submitted2016en
dc.description.abstractStroke is a leading cause of morbidity and transient ischemic attacks (TIA) are an ideal target for stroke prevention strategies. Administrative data are an important source of information for TIA research, but they have not been validated in the emergency department (ED). We aimed to determine the validity of TIA codes in the Canadian ED administrative database and the predictors of accurate TIA coding. We studied patients presenting to the ED with acute neurological symptoms. The National Ambulatory Care Reporting System (NACRS) database diagnosis codes were compared to the ED chart re-abstraction and 90-day final clinical diagnoses to obtain the sensitivity, specificity, and predictive values. The sensitivity of TIA codes was low to moderate (37-64%), but the specificity was high (82-93%). Quality of physician documentation was an important predictor of data accuracy. Our findings inform TIA research and surveillance methods and we identify an opportunity for improving administrative data quality.en_US
dc.identifier.citationYu, A. Y. (2016). Passive Surveillance of Transient Ischemic Attacks in the Emergency Department: Validity of Administrative Data and Determinants of Inaccuracies in Data Coding (Master's thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca. doi:10.11575/PRISM/27268en_US
dc.identifier.doihttp://dx.doi.org/10.11575/PRISM/27268
dc.identifier.urihttp://hdl.handle.net/11023/3511
dc.language.isoeng
dc.publisher.facultyGraduate Studies
dc.publisher.institutionUniversity of Calgaryen
dc.publisher.placeCalgaryen
dc.rightsUniversity of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.
dc.subjectEpidemiology
dc.subject.classificationTransient Ischemic Attacken_US
dc.subject.classificationAdministrative Dataen_US
dc.subject.classificationSurveillanceen_US
dc.titlePassive Surveillance of Transient Ischemic Attacks in the Emergency Department: Validity of Administrative Data and Determinants of Inaccuracies in Data Coding
dc.typemaster thesis
thesis.degree.disciplineCommunity Health Sciences
thesis.degree.grantorUniversity of Calgary
thesis.degree.nameMaster of Science (MSc)
ucalgary.item.requestcopytrue
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