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K. Brown · SciRah

Researcher profile · Semantic Scholar

K. Brown

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K. Brown — researcher profile on SciRah

h-index: 34
Works: 144
Citations: 5,105

Most-cited papers

Effectiveness of BNT162b2 and mRNA-1273 covid-19 vaccines against symptomatic SARS-CoV-2 infection and severe covid-19 outcomes in Ontario, Canada: test negative design study
H. Chung, Siyi He, S. Nasreen, M. Sundaram +18 more
2021British medical journal280 citations Open access
Semantic Scholar
Estimates of SARS-CoV-2 Omicron Variant Severity in Ontario, Canada.
A. Ulloa, S. Buchan, N. Daneman, K. Brown
2022Journal of the American Medical Association (JAMA)253 citations Open access
Semantic Scholar
Association Between Nursing Home Crowding and COVID-19 Infection and Mortality in Ontario, Canada
K. Brown, A. Jones, N. Daneman, Adrienne K. Chan +4 more
2020medRxiv223 citations Open access
Semantic Scholar
Effectiveness of COVID-19 vaccines against symptomatic SARS-CoV-2 infection and severe outcomes with variants of concern in Ontario
S. Nasreen, H. Chung, Siyi He, K. Brown +12 more
2022Nature Microbiology205 citations Open access
Semantic Scholar
For-profit long-term care homes and the risk of COVID-19 outbreaks and resident deaths
N. Stall, A. Jones, K. Brown, P. Rochon +1 more
2020Canadian Medical Association Journal194 citations Open access
Semantic Scholar
Prevalence and Mortality Associated with Bloodstream Organisms: a Population-Wide Retrospective Cohort Study
Mark J. Verway, K. Brown, A. Marchand-Austin, C. Diong +9 more
2022Journal of Clinical Microbiology135 citations Open access
Semantic Scholar
Association of Age and Pediatric Household Transmission of SARS-CoV-2 Infection.
Lauren A. Paul, N. Daneman, K. Schwartz, Michelle Science +4 more
2021JAMA pediatrics135 citations Open access
Semantic Scholar
Effectiveness of COVID-19 vaccines against variants of concern, Canada
S. Nasreen, H. Chung, Siyi He, K. Brown +12 more
2021medRxiv108 citations Open access
Semantic Scholar
S-Gene Target Failure as a Marker of Variant B.1.1.7 Among SARS-CoV-2 Isolates in the Greater Toronto Area, December 2020 to March 2021.
K. Brown, J. Gubbay, J. Hopkins, Samir N. Patel +3 more
2021Journal of the American Medical Association (JAMA)97 citations Open access
Semantic Scholar
Antibiotic prescribing choices and their comparative C. difficile infection risks: a longitudinal case-cohort study.
K. Brown, B. Langford, K. Schwartz, C. Diong +2 more
2020Clinical Infectious Diseases88 citations Open access
Semantic Scholar
Unnecessary antibiotic prescribing in a Canadian primary care setting: a descriptive analysis using routinely collected electronic medical record data.
K. Schwartz, B. Langford, N. Daneman, Branson Chen +10 more
2020CMAJ Open75 citations Open access
Semantic Scholar
Population-based evaluation of the effectiveness of nirmatrelvir–ritonavir for reducing hospital admissions and mortality from COVID-19
K. L. Schwartz, Jun Wang, Mina Tadrous, B. Langford +6 more
2023Canadian Medical Association Journal71 citations Open access
Semantic Scholar
Late-Career Physicians Prescribe Longer Courses of Antibiotics.
C. Fernandez-Lázaro, K. Brown, B. Langford, N. Daneman +2 more
2019Clinical Infectious Diseases62 citations Open access
Semantic Scholar
Assessment of Psychotropic Drug Prescribing Among Nursing Home Residents in Ontario, Canada, During the COVID-19 Pandemic.
N. Stall, J. Zipursky, J. Rangrej, A. Jones +3 more
2021JAMA Internal Medicine58 citations Open access
Semantic Scholar
Nudging In MicroBiology Laboratory Evaluation (NIMBLE): A scoping review
B. Langford, Elizabeth Leung, Reem Haj, Mark T Mcintyre +4 more
2019Infection control and hospital epidemiology56 citations
Semantic Scholar
Early estimates of SARS-CoV-2 Omicron variant severity based on a matched cohort study, Ontario, Canada
A. Ulloa, S. Buchan, N. Daneman, K. Brown
2021medRxiv55 citations Open access
Semantic Scholar
Effect of Antibiotic-Prescribing Feedback to High-Volume Primary Care Physicians on Number of Antibiotic Prescriptions: A Randomized Clinical Trial.
K. Schwartz, N. Ivers, B. Langford, M. Taljaard +11 more
2021JAMA Internal Medicine55 citations Open access
Semantic Scholar
Antimicrobial resistance and mortality following E. coli bacteremia
N. Daneman, Daniel J. Fridman, J. Johnstone, B. Langford +6 more
2022EClinicalMedicine54 citations Open access
Semantic Scholar
Effectiveness of mRNA COVID-19 vaccine booster doses against Omicron severe outcomes
R. Grewal, L. Nguyen, S. Buchan, S. E. Wilson +9 more
2023Nature Communications53 citations Open access
Semantic Scholar
COVID-19 Workplace Outbreaks by Industry Sector and Their Associated Household Transmission, Ontario, Canada, January to June, 2020
M. Murti, C. Achonu, Brendan T. Smith, K. Brown +4 more
2020medRxiv49 citations Open access
Semantic Scholar
Estimating the effect of physical distancing on the COVID-19 pandemic using an urban mobility index
Jean-Paul R. Soucy, S. Sturrock, I. Berry, Duncan J. Westwood +3 more
2020medRxiv49 citations Open access
Semantic Scholar
Maternal mRNA covid-19 vaccination during pregnancy and delta or omicron infection or hospital admission in infants: test negative design study
Sarah C. J. Jorgensen, Alejandro Hernandez, D. Fell, P. Austin +10 more
2023British medical journal47 citations Open access
Semantic Scholar
The Benefits and Harms of Antibiotic Prophylaxis for Urinary Tract Infection in Older Adults.
B. Langford, K. Brown, C. Diong, A. Marchand-Austin +9 more
2021Clinical Infectious Diseases47 citations
Semantic Scholar
The Impact of COVID-19 on Outpatient Antibiotic Prescriptions in Ontario, Canada; An Interrupted Time Series Analysis
T. Kitano, K. Brown, N. Daneman, D. Macfadden +11 more
2021Open Forum Infectious Diseases44 citations Open access
Semantic Scholar
SARS-CoV-2 seroprevalence survey estimates are affected by anti-nucleocapsid antibody decline
S. Bolotin, Vanessa Tran, S. Osman, K. Brown +4 more
2020medRxiv41 citations Open access
Semantic Scholar
Each Additional Day of Antibiotics Is Associated With Lower Gut Anaerobes in Neonatal Intensive Care Unit Patients
A. Rooney, K. Timberlake, K. Brown, Saumya Bansal +4 more
2019Clinical Infectious Diseases41 citations Open access
Semantic Scholar
Predictors and variability of antibiotic prescribing amongst family physicians.
K. Schwartz, K. Brown, J. Etches, B. Langford +5 more
2019Journal of Antimicrobial Chemotherapy34 citations Open access
Semantic Scholar
Antibiotics: Easier to start than to stop? Predictors of antimicrobial stewardship Recommendation acceptance.
B. Langford, R. Nisenbaum, K. Brown, A. Chan +1 more
2020Clinical Microbiology and Infection33 citations Open access
Semantic Scholar
Epidemiology, clinical characteristics, household transmission, and lethality of severe acute respiratory syndrome coronavirus-2 infection among healthcare workers in Ontario, Canada
K. Schwartz, C. Achonu, S. Buchan, K. Brown +4 more
2020PLoS ONE33 citations Open access
Semantic Scholar
Incidence of outbreak-associated COVID-19 cases by industry in Ontario, Canada, 1 April 2020–31 March 2021
S. Buchan, Peter M. Smith, C. Warren, M. Murti +6 more
2022Occupational and Environmental Medicine32 citations Open access
Semantic Scholar
Risk factors for outbreaks of SARS-CoV-2 infection at retirement homes in Ontario, Canada: a population-level cohort study
A. Costa, Derek R. Manis, A. Jones, N. Stall +10 more
2021Canadian Medical Association Journal32 citations Open access
Semantic Scholar
Neighbourhood-level risk factors of COVID-19 incidence and mortality
T. van Ingen, S. Akingbola, K. Brown, N. Daneman +2 more
2021medRxiv32 citations Open access
Semantic Scholar
COVID-19 and Ontario’s Long-Term Care Homes
N. Stall, K. Brown, A. Maltsev, A. Jones +16 more
202032 citations Open access
Semantic Scholar
A Vaccination Strategy for Ontario COVID-19 Hotspots and Essential Workers
Sharmistha Mishra, N. Stall, Hui-Ting Ma, A. Odutayo +18 more
202131 citations Open access
Semantic Scholar
Healthcare Worker COVID-19 Cases in Ontario, Canada: A Cross-sectional Study
K. Schwartz, C. Achonu, S. Buchan, K. Brown +4 more
2020medRxiv31 citations Open access
Semantic Scholar
Early Impact of Ontario’s COVID-19 Vaccine Rollout on Long-Term Care Home Residents and Health Care Workers
K. Brown, N. Stall, T. Vanniyasingam, S. Buchan +11 more
202129 citations Open access
Semantic Scholar
Highly versus less bioavailable oral antibiotics in the treatment of gram negative bloodstream infections: a propensity-matched cohort analysis.
Kwadwo Mponponsuo, K. Brown, Daniel J. Fridman, J. Johnstone +6 more
2022Clinical Microbiology and Infection28 citations Open access
Semantic Scholar
Population-Wide Peer Comparison Audit and Feedback to Reduce Antibiotic Initiation and Duration in Long-Term Care Facilities with Embedded Randomized Controlled Trial.
N. Daneman, Samantha M. Lee, H. Bai, C. Bell +15 more
2021Clinical Infectious Diseases28 citations Open access
Semantic Scholar
Neighbourhood-level socio-demographic characteristics and risk of COVID-19 incidence and mortality in Ontario, Canada: A population-based study
T. van Ingen, K. Brown, S. Buchan, S. Akingbola +3 more
2022PLoS ONE27 citations Open access
Semantic Scholar
The Association between High and Unnecessary Antibiotic Prescribing: A Cohort Study Using Family Physician Electronic Medical Records.
T. Kitano, B. Langford, K. Brown, A. Pang +10 more
2020Clinical Infectious Diseases26 citations Open access
Semantic Scholar
Impact of a Public Policy Restricting Staff Mobility Between Nursing Homes in Ontario, Canada During the COVID-19 Pandemic.
A. Jones, A. Watts, S. Khan, Jack Forsyth +4 more
2021Journal of the American Medical Directors Association25 citations Open access
Semantic Scholar
Nursing home crowding and its association with outbreak-associated respiratory infection in Ontario, Canada before the COVID-19 pandemic (2014–19): a retrospective cohort study
P. Leece, M. Whelan, A. Costa, N. Daneman +5 more
2023The Lancet Healthy Longevity24 citations Open access
Semantic Scholar
Characteristics Associated With Household Transmission of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) in Ontario, Canada: A Cohort Study
Lauren A. Paul, N. Daneman, K. Brown, James Johnson +4 more
2021Clinical Infectious Diseases23 citations Open access
Semantic Scholar
Reducing unnecessary urine culturing and antibiotic overprescribing in long-term care: a before-and-after analysis.
K. Brown, Andrea Chambers, S. MacFarlane, B. Langford +4 more
2019CMAJ Open23 citations Open access
Semantic Scholar
Virtual learning collaboratives to improve urine culturing and antibiotic prescribing in long-term care: controlled before-and-after study
Andrea Chambers, Cynthia Chen, K. Brown, N. Daneman +9 more
2021BMJ Quality & Safety22 citations Open access
Semantic Scholar
Incidence and Outcomes Associated With Clostridioides difficile Infection in Solid Organ Transplant Recipients
S. M. Hosseini-Moghaddam, Bin Luo, S. Bota, S. Husain +4 more
2021JAMA Network Open18 citations Open access
Semantic Scholar
The Urine Culturing Cascade: Variation in Nursing Home Urine Culturing and Association with Antibiotic Use and C. difficile infection.
K. Brown, N. Daneman, K. Schwartz, B. Langford +4 more
2020Clinical Infectious Diseases18 citations
Semantic Scholar
A Longitudinal, Clinical, and Spatial Epidemiologic Analysis of a Large COVID-19 Long-Term Care Home Outbreak
Dylan C. Kain, N. Stall, K. Brown, Liz Mccreight +6 more
2021Journal of the American Medical Directors Association17 citations Open access
Semantic Scholar
Discontinuing Contact Precautions for VRE is associated with rising VRE bloodstream infection rates in Ontario hospitals, 2009 - 2018, a quasi-experimental study.
J. Johnstone, E. Shing, A. Saedi, K. Adomako +3 more
2020Clinical Infectious Diseases17 citations
Semantic Scholar
Comparative Fracture Risk During Osteoporosis Drug Holidays After Long-Term Risedronate Versus Alendronate Therapy
K. Hayes, K. Brown, A. Cheung, Sandra A. Kim +2 more
2022Annals of Internal Medicine16 citations
Semantic Scholar

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