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Andrew Worster

McMaster University

45H-index
351Paper Count
1.0WCitation Count
Published Papers 136
Publication Date
Applying the Canadian Head CT Criteria to Older Adults Seen in the Emergency Department After a Fall
err2025-10-31
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errGeoff Kerr; Allie Chown; Mathew Mercuri; Natasha Clayton; Éric Mercier; Judy Morris; Rebecca Jeanmonod; Debra Eagles; Catherine Varner; David Barbic; Sameer Parpia; Ian M. Buchanan; Mariyam Ali; Yoan K. Kagoma; Ashkan Shoamanesh; Paul Engels; Sunjay Sharma; Andrew Worster; Shelley McLeod; Marcel Émond; Ian Stiell; Alexandra Papaioannou; Kerstin de Wit
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ALARRM: A laboratory approach for rapid risk-assessment for myocardial infarction
err2025-09-27
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errPeter A. Kavsak; Sameer Sharif; Craig Ainsworth; Jinhui Ma; Shawn E. Mondoux; Dennis T. Ko; Andrew Worster
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A Common Algorithm for Cardiac Troponin to Rule Out and Rule in Acute Myocardial Infarction
err2025-02-26
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errNiklas Thieβen; John W. Pickering; Caroline Kellner; Paul M. Haller; Jonas Lehmacher; Betül Toprak; Raphael Twerenbold; Nils Arne Sörensen; Christopher Pemberton; Richard Troughton; A. Mark Richards; Sameer Sharif; Andrew Worster; Martin Than; Peter A. Kavsak; Johannes T. Neumann
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Hospital and physician-based mental healthcare during 12 months of opioid agonist treatment for opioid use disorder: Exploring costs and factors associated with acute care
err2025-01-08
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errRosic, Tea; Babe, Glenda; Rodrigues, Myanca; Dennis, Brittany B.; Perez, Richard; de Oliveira, Claire; Worster, Andrew; Samaan, Zainab
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A Multicentre Prospective Cohort Study to Identify High- Risk Transient Ischemic Attack/Minor Stroke Patients Benefitting from Echocardiography
err2024-12-01
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errPerry, Jeffrey J.; Alsadoon, Abdulaziz; Nemnom, Marie-Joe; Sivilotti, Marco L. A.; Emond, Marcel; Stiell, Ian G.; Stotts, Grant; Lee, Jacques S.; Worster, Andrew; Morris, Judy; Cheung, Ka Wai; Jin, Albert Y.; Sahlas, Demetrios J.; Murray, Heather E.; Mackey, Ariane; Verreault, Steve; Camden, Marie-Christine; Yip, Samuel; Teal, Philip; Gladstone, David J.; Boulos, Mark I.; Chagnon, Nicolas; Shouldice, Elizabeth; Atzema, Clare; Slaoui, Tarik; Teitelbaum, Jeanne; Giannakakis, Sophia-Maria; Thiruganasambandamoorthy, Venkatesh; Dowlatshahi, Dar; Wells, George A.; Sharma, Mukul
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Assay Precision and Risk of Misclassification at Rule-Out Cutoffs for High-Sensitivity Cardiac Troponin
err2024-11-01
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PREAI
errKavsak, Peter A.; Mills, Nicholas L.; Clark, Lorna; Ko, Dennis T.; Sharif, Sameer; Chen-Tournoux, Annabel; Friedman, Steven M.; Belley-Cote, Emilie P.; Worster, Andrew; Cox, Jafna; Thiruganasambandamoorthy, Venkatesh; Lou, Amy; Taher, Jennifer; Scheuermeyer, Frank; McCudden, Chris; Abramson, Beth L.; Eintracht, Shaun; Shea, Jennifer L.; Yip, Paul M.; Huang, Yun; Chen, Michael; Tsui, Albert K. Y.; Thorlacius, Laurel; Aakre, Kristin M.; Raizman, Joshua E.; Fung, Angela W. S.; Humphries, Karin H.; Arnoldo, Saranya; Bhayana, Vipin; Djiana, Rose; Beriault, Daniel R.; St-Cyr, Julie; Booth, Ronald A.; Blank, David W.; Sivilotti, Marco L. A.; Jaffe, Allan S.
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High-Sensitivity Cardiac Troponin I for Long-Term Cardiovascular Risk Stratification in a Cancer Clinic Population
err2024-02-01
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errKavsak, Peter A.; Cerasuolo, Joshua O.; Kirkwood, David; Perez, Richard; Seow, Hsien; Ma, Jinhui; Worster, Andrew; Ko, Dennis T.; Dhesy-Thind, Sukhbinder; Leong, Darryl
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Derivation of the Falls Decision Rule to exclude intracranial bleeding without head CT in older adults who have fallen
err2023-12-03
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errOAAI
errde Wit, Kerstin; Mercuri, Mathew; Clayton, Natasha; Mercier, Eric; Morris, Judy; Jeanmonod, Rebecca; Eagles, Debra; Varner, Catherine; Barbic, David; Buchanan, Ian M.; Ali, Mariyam; Kagoma, Yoan K.; Shoamanesh, Ashkan; Engels, Paul; Sharma, Sunjay; Worster, Andrew; McLeod, Shelley; Emond, Marcel; Stiell, Ian; Papaioannou, Alexandra; Parpia, Sameer
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The Canadian Tia Score as a Predictor of Ischemic Lesion on Magnetic Resonance Imaging in Transient Ischemic Attack or Minor Stroke Following a Negative Computed Tomography Scan
err2023-11-07
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PREAI
errRobitaille, Matthieu; Sharma, Mukul; Emond, Marcel; Mackey, Ariane; Blanchard, Pierre-Gilles; Nemnom, Marie-Joe; Sivilotti, Marco; Stiell, Ian; Stotts, Grant; Lee, Jacques; Worster, Andrew; Morris, Judy; Cheung, Ka Wai; Jin, Albert; Oczkowski, Wieslaw J.; Sahlas, Demetrios; Murray, Heather; Verreault, Steve; Camden, Marie-Christine; Yip, Samuel; Teal, Philip A.
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Analytic Result Variation for High-Sensitivity Cardiac Troponin: Interpretation and Consequences
err2023-07-01
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errKavsak, Peter A.; Clark, Lorna; Arnoldo, Saranya; Lou, Amy; Shea, Jennifer L.; Eintracht, Shaun; Lyon, Andrew W.; Bhayana, Vipin; Thorlacius, Laurel; Raizman, Joshua E.; Tsui, Albert K. Y.; Djiana, Rose; Chen, Michael; Huang, Yun; Booth, Ronald A.; McCudden, Chris; Lavoie, Joel; Beriault, Daniel R.; Blank, David W.; Fung, Angela W. S.; Hoffman, Barry; Taher, Jennifer; St-Cyr, Julie; Yip, Paul M.; Belley-Cote, Emilie P.; Abramson, Beth L.; Borgundvaag, Bjug; Friedman, Steven M.; Mak, Susanna; McLaren, Jesse; Steinhart, Brian; Udell, Jacob A.; Wijeysundera, Harindra C.; Atkinson, Paul; Campbell, Samuel G.; Chandra, Kavish; Cox, Jafna L.; Mulvagh, Sharon; Quraishi, Ata-ur-Rehman; Chen-Tournoux, Annabel; Clark, Gregory; Segal, Eli; Suskin, Neville; Johri, Amer M.; Sivilotti, Marco L. A.; Garuba, Habibat; Thiruganasambandamoorthy, Venkatesh; Robinson, Simon; Scheuermeyer, Frank; Humphries, Karin H.; Than, Martin; Pickering, John W.; Worster, Andrew; Mills, Nicholas L.; Devereaux, P. J.; Jaffe, Allan S.
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Prognostic Association Between Frailty and Post-Arrest Health Outcomes in Patients Receiving Home Care: A Population-Based Retrospective Cohort Study
err2023-06-01
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PREAI
errMowbray, Fabrice I.; Turcotte, Luke; Strum, Ryan P.; de Wit, Kerstin; Griffith, Lauren E.; Worster, Andrew; Foroutan, Farid; Heckman, George; Hebert, Paul; Schumacher, Connie; Jones, Aaron; Mercier, Eric; Gayowsky, Anastasia; Costa, Andrew P.
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Personalized diagnosis in suspected myocardial infarction
err2023-05-02
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errNeumann, Johannes Tobias; Twerenbold, Raphael; Ojeda, Francisco; Aldous, Sally; Allen, Brandon; Apple, Fred M.; Babel, Hugo; Christenson, Robert; Cullen, Louise; Di Carluccio, Eleonora; Doudesis, Dimitrios; Ekelund, Ulf M.; Giannitsis, Evangelos; Greenslade, Jaimi; Inoue, Kenji; Jernberg, Tomas; Kavsak, Peter; Keller, Till; Lee, Kuan Ken; Lindahl, Bertil; Lorenz, Thiess; Mahler, Simon; Mills, Nicholas; Mokhtari, Arash; Parsonage, William; Pickering, John; Pemberton, Christopher; Reich, Christoph; Richards, A. Mark; Sandoval, Yader; Than, Martin A.; Toprak, Betuel; Troughton, Richard; Worster, Andrew; Zeller, Tanja; Ziegler, Andreas; Blankenberg, Stefan; ARTEMIS Study Grp
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Ninety-Day Stroke or Transient Ischemic Attack Recurrence in Patients Prescribed Anticoagulation in the Emergency Department With Atrial Fibrillation and a New Transient Ischemic Attack or Minor Stroke
err2023-04-18
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errWilson, Graham; Sharma, Mukul; Eagles, Debra; Nemnom, Marie-Joe; Sivilotti, Marco L. A.; Emond, Marcel; Stiell, Ian G.; Stotts, Grant; Lee, Jacques; Worster, Andrew; Morris, Judy; Cheung, Ka Wai; Jin, Albert Y.; Oczkowski, Wieslaw J.; Sahlas, Demetrios J.; Murray, Heather E.; Mackey, Ariane; Verreault, Steve; Camden, Marie Christine; Yip, Samuel; Teal, Philip; Gladstone, David J.; Boulos, Mark I.; Chagnon, Nicolas; Shouldice, Elizabeth; Atzema, Clare; Slaoui, Tarik; Teitlebaum, Jeanne; Wells, George A.; Nath, Avik; Perry, Jeffrey J.
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Contemporary Cardiology Identifying Very-Low-Risk Patients for Future Myocardial Infarction or Death
err2023-04-01
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errOAAI
errKavsak, Peter A.; Cerasuolo, Joshua O.; Hewitt, Mark K.; Mondoux, Shawn E.; Perez, Richard; Seow, Hsien; Ainsworth, Craig; Ma, Jinhui; Worster, Andrew; Ko, Dennis T.
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Prospective Validation of Computed Tomography to Identify Patients at High Risk for Stroke After Transient Ischemic Attack or Minor Stroke
errSTROKE
IF8.9
err2023-04-01
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PREAI
errFerguson, Emma; Yadav, Krishan; Sharma, Mukul; Sivilotti, Marco L. A.; Emond, Marcel; Stiell, Ian G.; Stotts, Grant; Lee, Jacques S.; Worster, Andrew; Morris, Judy; Cheung, Ka Wai; Jin, Albert Y.; Oczkowski, Wieslaw J.; Sahlas, Demetrios J.; Murray, Heather E.; Mackey, Ariane; Verreault, Steve; Camden, Marie-Christine; Yip, Samuel; Teal, Philip; Gladstone, David J.; Boulos, Mark I.; Chagnon, Nicolas; Shouldice, Elizabeth; Atzema, Clare; Slaoui, Tarik; Teitelbaum, Jeanne; Nemnom, Marie-Joe; Wells, George A.; Nath, Avik; Perry, Jeffrey J.
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Using logistic regression models to investigate the effects of high-sensitivity cardiac troponin T confounders on ruling in acute myocardial infarction
err2023-01-26
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PREAI
errLiu, Li; Cai, Xueya; Love, Tanzy; Corsetti, Matthew; Mathias, Andrew M. M.; Worster, Andrew; Ma, Jinhui; Kavsak, Peter A. A.
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Cannabis use and opioid relapse: An exploratory survival analysis of prospectively collected data
err2022-11-16
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errNaji, Leen; Rosic, Tea; Sanger, Nitika; Dennis, Brittany; Hillmer, Alannah; Hudson, Jacqueline; Worster, Andrew; Paul, James; Marsh, David C.; Thabane, Lehana; Samaan, Zainab
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