Clinical Epidemiology & Biostatistics


Andrew Worster

MD (Dalhousie), MSc (McMaster), CCFP(EM), FCFP

Professor, Department of Medicine, Division of Emergency Medicine

Associate Member, Dept of Clinical Epidemiology & Biostatistics

Research Director, Emergency Medicine, Hamilton Health Sciences

Staff Emergency Physician, Hamilton Health Sciences

905.521.2100 x75848
905.577.8457
worster@mcmaster.ca

DBCVSRI, Rm. 248
Hamilton General Hospital
237 Barton St. East 
Hamilton, Ontario, Canada 
L8L 2X2 

Academic Interests

Dr. Worster is a former Director of the Division of Emergency Medicine and former Chair of the international knowledge translation project, Best Evidence in Emergency Medicine (BEEM), at McMaster University. His research on the utilization and evaluation of diagnostic tests in emergency medicine is funded by the Canadian Institutes of Health Research (CIHR).

Selected Publications

  1. Kavsak PA, Worster A, You JJ, Oremus M, Shortt C, Phan K, Sohn KY, Veljkovic K, Devereaux PJ, Hill S, Bhanich-Supapol W, Jaffe AS. Ninety-Minute vs 3-h Performance of High-Sensitivity Cardiac Troponin Assays for Predicting Hospitalization for Acute Coronary Syndrome. Clin Chem. 2013 Jul 10.
  2. Lim ME, Worster A, Goeree R, Tarride JÉ. Simulating an emergency department: the importance of modeling the interactions between physicians and delegates in a discrete event simulation. BMC Med Inform Decis Mak. 2013 May 22;13:59.
  3. Shortt CR, Worster A, Hill SA, Kavsak PA. Comparison of hs-cTnI, hs-cTnT, hFABP and GPBB for identifying early adverse cardiac events in patients presenting within six hours of chest pain-onset. Clin Chim Acta. 2013 Jan 30;419C:39-41.
  4. Worster A, Kavsak PA, Brown M. Risk stratification in the era of high-sensitivity troponin assays. Ann Emerg Med. 2012 Feb;59(2):126-7.
  5. Carpenter CR, Keim SM, Worster A, Rosen P; BEEM (Best Evidence in Emergency Medicine). Brain natriuretic peptide in the evaluation of emergency department dyspnea: is there a role? J Emerg Med. 2012 Feb;42(2):197-205.
  6. Phan K, Sohn KY, Hill SA, Worster A, You J, Oremus M, Devereaux PJ, Jaffe AS, Kavsak PA. Multiplex protein assay performance/evaluation and the requirement for precision and correlation to clinical assays. Clin Chem Lab Med. 2011 Nov;49(11):1915-8. doi: 10.1515/CCLM.2011.683. Epub 2011 Aug 30.
  7. Kavsak PA, Worster A, You JJ, Oremus M, Elsharif A, Hill SA, Devereaux PJ, MacRae AR, Jaffe AS. Identification of myocardial injury in the emergency setting. Clin Biochem. 2010 Apr;43(6):539-44. doi: 10.1016/j.clinbiochem.2009.12.014. Epub 2009 Dec 21. Review.
  8. Seupaul RA, Worster A. Evidence-based emergency medicine/rational clinical examination abstract. Is this patient having a stroke? Ann Emerg Med. 2009 Jul;54(1):120-2. doi: 10.1016/j.annemergmed.2008.08.027. Epub 2008 Oct 8.
  9. Worster A, Carpenter C. Incorporation bias in studies of diagnostic tests: how to avoid being biased about bias. CJEM. 2008 Mar;10(2):174-5. Review.
  10. Worster A, Sardo A, Eva K, Fernandes CM, Upadhye S. Triage tool inter-rater reliability: a comparison of live versus paper case scenarios. J Emerg Nurs. 2007 Aug;33(4):319-23. Epub 2007 Jun 21.

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