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D

Derek R. MacFadden

The Ottawa Hospital

33H-index
212Paper Count
7.0KCitation Count
Published Papers 96
Publication Date
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Antibiotics for Delirium in Older Adults With No Clear Urinary Tract Infection: A Multicentre, Pragmatic, Randomized Trial—Vanguard Results
errJournal of the American Geriatrics Society
IF4.5
err2026-05-23
err0
errOAAI
errMichael Fralick; Nathan M. Stall; Katarina Zorcic; Christina Reppas-Rindlisbacher; Eric Kaplovitch; Amy S. Li; Derek R. MacFadden; Daniel Kobewka; Lucas Castellani; Patricia Parsons; Allison McGeer; Janine McCready; Bryant Lim; Emil Hodzic-Santor; Christopher Kandel; for the A-DONUT Study Team
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errSave
Transmission of carbapenemase-producing Enterobacter in Ontario, Canada: a retrospective genomic analysis
errEmerging Microbes & Infections
IF0
err2026-05-23
err1
PREAI
errIzydorczyk, Conrad; Lee, Robyn; Mataseje, Laura; Golding, George R.; Edge, Thomas A.; Boyd, Rachel; Braukmann, Tom; Carroll, Amanda; Katz, Kevin; Kozak, Robert; Jamal, Alainna J.; MacFadden, Derek R.; Mazzulli, Tony; Melano, Roberto; Mubareka, Samira; Patel, Samir; Poutanen, Susan M.; Richardson, David; Waglechner, Nicholas; McGeer, Allison
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errSave
Completeness of Initial Laboratory Evaluation Impacts Chronic Hepatitis B Outcomes
errLivers
IF2.4
err2026-01-20
err0
errOAAI
errImsirovic, Haris; Hung, Jui-Hsia (Cleo); Dumicho, Asnake Y.; Manuel, Douglas; Macfadden, Derek R.; Cooper, Curtis L.
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errSave
SARS-CoV-2 detection is independent of microbiome composition on surfaces in a major Ontario hospital
errPLOS ONE
IF2.6
err2025-12-04
err0
PREAI
errGeorge, Nikhil A.; Bradford, Lauren; Hinz, Aaron; El Kadi, Marita; Xing, Lydia; Doukhanine, Evgueni; MacFadden, Derek R.; Nott, Caroline; Fralick, Michael; Kassen, Rees; Wong, Alex; Hug, Laura A.
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errSave
Assessing the feasibility of a platform trial for Gram negative bloodstream infections: results from the vanguard phase of BALANCE
errBMJ OPEN
IF2.3
err2025-12-04
err0
errOAAI
errDaneman, Nick; Johnstone, Jennie; Lee, Todd C.; Macfadden, Derek R.; McDonald, Emily G.; Morpeth, Susan C.; Ong, Sean W. X.; Paterson, David L.; Pinto, Ruxandra L.; Rishu, Asgar; Rogers, Benjamin A.; Yahav, Dafna; Coburn, Bryan; Daley, Peter; Das, Pavani; Fiest, Kirsten; Findlater, Aidan; Fralick, Mike; George, Mithun; Kandel, Christopher; Malavade, Archana; Powis, Jeff; Somayaji, Ranjani; Fowler, Robert
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errSave
Sequencing and variant calling of SARS-CoV-2 from floor swabs: a potential tool for identifying emergent lineages
errMICROBIAL GENOMICS
IF4
err2025-12-01
err0
PREAI
errHodzic-Santor, Benazir; Hinz, Aaron; Kassen, Rees; Liu, Ju-Ling; Djambazian, Haig; Lee, Sally; Hicks, Alexandra; Sjaarda, Calvin; Wong, Henry; Sheth, Prameet M.; Nott, Caroline; Macfadden, Derek R.; Roy, Anne-Marie; Ragoussis, Jiannis; Castellani, Lucas; Fralick, Michael; Wong, Alex
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errSave
A research agenda advancing climate change and antimicrobial resistance as interconnected issues
errNature Climate Change
IF27.1
err2025-11-24
err0
PREAI
errKelly Moon; Bianca van Bavel; Lea Berrang Ford; Kerry Badger; Laura Carter; Barbara Evans; William H. Gaze; Philip Howard; Arshnee Moodley; Kasim Allel; Min Na Eii; Sabiha Essack; David N. Fisman; Niklas Harring; Claas Kirchhelle; Anne F. C. Leonard; Sonia Lewycka; Derek R. MacFadden; Evelyn Madoroba; Eric R. Morgan; Windi Muziasari; Miriam Reverter; Barth F. Smets; Tracey Thornley; Li Shean Toh; Fiona Tomley; Sarah C. Walpole; Rebecca King
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errSave
Evolving landscape of economic evaluations of HIV pre-exposure prophylaxis and pre-exposure prophylaxis implementation strategies: a systematic review
errJOURNAL OF THE INTERNATIONAL AIDS SOCIETY
IF4.9
err2025-11-23
err0
errOAAI
errXi, Min; Tan, Darrell H. S.; Baral, Stefan D.; Kugathasan, Howsikan; Masucci, Lisa; Skidmore, Becky; Macfadden, Derek R.; Thavorn, Kednapa; Mishra, Sharmistha
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errSave
Clinician survey for the management of central venous catheter-related bloodstream infection: catheter retention versus replacement
errJOURNAL OF THE ASSOCIATION OF MEDICAL MICROBIOLOGY AND INFECTIOUS DISEASE CANADA (JAMMI)
IF0
err2025-09-29
err1
PREAI
errBuskandar, Fahad; Fowler, Robert A.; Johnstone, Jennie; Lee, Todd C.; MacFadden, Derek R.; McDonald, Emily G.; Oliver, Matthew J.; Ong, Sean W. X.; Paterson, David; Pinto, Ruxandra; Rishu, Asgar; Rogers, Ben; Yahav, Dafna; Daneman, Nick
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errSave
Using Routine Asymptomatic Clostridioides difficile Testing to Identify Patients at High Risk of Developing Clostridioides difficile Infection During Hematopoietic Cell Transplantation
errJOURNAL OF THE ASSOCIATION OF MEDICAL MICROBIOLOGY AND INFECTIOUS DISEASE CANADA (JAMMI)
IF0
err2025-09-29
err0
errOAAI
errJanusz, Nicole; Mortimer, Leanne; Leite, Tamara; Carroll, Amanda; Kekre, Natasha; Kennah, Michael; Yan, Austin; Senechal, Jaxon; Buchan, C. Arianne; MacFadden, Derek
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errSave
Peri-Covid-19 Antibiotic Use and Antimicrobial Resistance in Older Adults
errNEJM EVIDENCE
IF0
err2025-09-23
err0
PREAI
errMacFadden, Derek R.; Maxwell, Colleen; Bowdish, Dawn; Bronskill, Susan; Brooks, James; Brown, Kevin; Burrows, Lori L.; Clarke, Anna E.; Langford, Bradley J.; Leung, Elizabeth; Leung, Valerie; Manuel, Doug; McGeer, Allison; Mishra, Sharmistha; Morris, Andrew M.; Nott, Caroline; Raybardhan, Sumit; Sapin, Mia E.; Schwartz, Kevin L.; So, Miranda; Soucy, Jean-Paul R.; Daneman, Nick
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errSave
City-wide built environment SARS-CoV-2 detection for COVID-19 surveillance
errPLOS GLOBAL PUBLIC HEALTH
IF0
err2025-09-08
err0
errOAAI
errMacfadden, Derek R.; Fralick, Michael; Nott, Caroline; Moggridge, Jason A.; Hicks, Alexandra M. A.; Van Bakel, Tamara; Doukhanine, Evgueni; Hinz, Aaron; Thampi, Nisha; Bastien, Pascal; Mansour, Sarah; Khov, Engluy; Burhunduli, Tasha; Manuel, Douglas G.; Wong, Alex; Kassen, Rees
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errSave
The Burden of Antimicrobial Resistant Bacteremia in Ontario: A Population-Wide Analysis of Attributable Mortality From 110 Pathogen-Antibiotic Combinations
errCLINICAL INFECTIOUS DISEASES
IF7.3
err2025-06-01
err3
errOAAI
errBrown, Kevin A.; Fridman, Daniel J.; Garber, Gary E.; Johnstone, Jennie; Langford, Bradley J.; Leung, Valerie; MacFadden, Derek; Patel, Samir N.; Schwartz, Kevin L.; Sander, Beate; Daneman, Nick
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errSave
Identifying heterogeneity of treatment effect for antibiotic duration in bloodstream infection: an exploratory post-hoc analysis of the BALANCE randomised clinical trial
errECLINICALMEDICINE
IF10
err2025-05-01
err0
PREAI
errOng, Sean W. X.; Pinto, Ruxandra; Rishu, Asgar; Tong, Steven Y. C.; Commons, Robert J.; Conly, John M.; Evans, Gerald A.; Fralick, Michael; Kandel, Christopher; Lagace-Wiens, Philippe R. S.; Lee, Todd C.; Lother, Sylvain A.; Macfadden, Derek R.; Marshall, John C.; Martel-Laferriere, Valerie; Mayette, Michael; McDonald, Emily G.; Neary, John D.; Prazak, Josef; Raby, Edward; Regli, Adrian; Rogers, Benjamin A.; Smith, Stephanie; Taggart, Linda R.; Wang, Han Ting; Wuerz, Terence; Yahav, Dafna; Young, Paul J.; Fowler, Robert A.; Daneman, Nick
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errSave
Rapid inference of antibiotic susceptibility phenotype of uropathogens using metagenomic sequencing with neighbor typing
errMICROBIOLOGY SPECTRUM
IF3.8
err2025-01-07
err0
errOAAI
errCarroll, Amanda C.; Mortimer, Leanne; Ghosh, Hiren; Reuter, Sandra; Grundmann, Hajo; Brinda, Karel; Hanage, William P.; Li, Angel; Paterson, Aimee; Purssell, Andrew; Rooney, Ashley; Yee, Noelle R.; Coburn, Bryan; Able-Thomas, Shola; Antonio, Martin; Mcgeer, Allison; Macfadden, Derek R.
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errSave
Prevalence and Predictors of Concomitant Bacterial Infections in Patients With Respiratory Viruses in Ontario: A Cohort Study
errOPEN FORUM INFECTIOUS DISEASES
IF3.8
err2024-12-03
err0
errOAAI
errWang, Yue; Swayze, Sarah; Brown, Kevin A.; Macfadden, Derek R.; Lee, Samantha M.; Schwartz, Kevin L.; Daneman, Nick; Langford, Bradley J.
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errSave
Long-term Risk of Infection Among Patients Colonized With Antimicrobial-Resistant Pathogens: A Population-wide Cohort Study
errOPEN FORUM INFECTIOUS DISEASES
IF3.8
err2024-12-02
err2
errOAAI
errBlagojevic, Christina; Brown, Kevin A.; Diong, Christina; Fridman, Daniel J.; Johnstone, Jennie; Langford, Bradley J.; Lee, Samantha M.; Macfadden, Derek R.; Schwartz, Kevin L.; Daneman, Nick
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errSave
Epidemiology and clinical relevance of persistent bacteraemia in patients with Gram-negative bloodstream infection: a retrospective cohort study
errJOURNAL OF ANTIMICROBIAL CHEMOTHERAPY
IF3.6
err2024-07-03
err3
errOAAI
errOng, Sean W. X.; Luo, Jin; Fridman, Daniel J.; Lee, Samantha M.; Johnstone, Jennie; Schwartz, Kevin L.; Diong, Christina; Patel, Samir N.; Macfadden, Derek R.; Langford, Bradley J.; Tong, Steven Y. C.; Brown, Kevin A.; Daneman, Nick
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errSave
Follow-up blood cultures do not reduce mortality in hospitalized patients with Gram-negative bloodstream infection: a retrospective population-wide cohort study
errCLINICAL MICROBIOLOGY AND INFECTION
IF8.5
err2024-07-01
err2
errOAAI
errOng, Sean W. X.; Luo, Jin; Fridman, Daniel J.; Lee, Samantha M.; Johnstone, Jennie; Schwartz, Kevin L.; Diong, Christina; Patel, Samir N.; MacFadden, Derek; Langford, Bradley; Tong, Steven Y. C.; Brown, Kevin A.; Daneman, Nick
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errSave
Antibiotics for delirium in older adults with pyuria or bacteriuria: A systematic review
errJOURNAL OF THE AMERICAN GERIATRICS SOCIETY
IF4.5
err2024-06-19
err0
errOAAI
errStall, Nathan M.; Kandel, Christopher; Reppas-Rindlisbacher, Christina; Quinn, Kieran L.; Wiesenfeld, Lesley; MacFadden, Derek R.; Johnstone, Jennie; Fralick, Michael
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errSave

Research Directions

No research directions
Co-authors
Cooperation Journals
S
Simon I Hay
H-index: 231 · Papers: 899
P
Peter Jüni
H-index: 164 · Papers: 915
P
Peter C. Austin
H-index: 140 · Papers: 1.3K
D
David L. Paterson
H-index: 131 · Papers: 949
J
John C. Marshall
H-index: 127 · Papers: 1.0K
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