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Dive into the research topics where Ayman Chit is active.

Publication


Featured researches published by Ayman Chit.


BMC Infectious Diseases | 2016

Cost of hospital management of Clostridium difficile infection in United States—a meta-analysis and modelling study

Shanshan Zhang; Sarah Palazuelos-Munoz; Evelyn Balsells; Harish Nair; Ayman Chit; Moe H. Kyaw

BackgroundClostridium difficile infection (CDI) is the leading cause of infectious nosocomial diarrhoea but the economic costs of CDI on healthcare systems in the US remain uncertain.MethodsWe conducted a systematic search for published studies investigating the direct medical cost associated with CDI hospital management in the past 10xa0years (2005–2015) and included 42 studies to the final data analysis to estimate the financial impact of CDI in the US. We also conducted a meta-analysis of all costs using Monte Carlo simulation.ResultsThe average cost for CDI case management and average CDI-attributable costs per case were


Vaccine | 2015

Expected cost effectiveness of high-dose trivalent influenza vaccine in US seniors

Ayman Chit; Julie Roiz; Benjamin Briquet; David P. Greenberg

42,316 (90xa0% CI:


BMC Infectious Diseases | 2015

Cost-effectiveness evaluation of quadrivalent influenza vaccines for seasonal influenza prevention: a dynamic modeling study of Canada and the United Kingdom

Edward W. Thommes; Afisi Ismaila; Ayman Chit; Genevieve Meier; Christopher T. Bauch

39,886,


PLOS ONE | 2015

An Assessment of the Expected Cost-Effectiveness of Quadrivalent Influenza Vaccines in Ontario, Canada Using a Static Model

Ayman Chit; Julie Roiz; Samuel Aballea

44,765) and


Lancet Infectious Diseases | 2015

Cost-effectiveness of high-dose versus standard-dose inactivated influenza vaccine in adults aged 65 years and older: an economic evaluation of data from a randomised controlled trial

Ayman Chit; Debbie L. Becker; Carlos A. DiazGranados; Michael Maschio; Eddy Yau; Michael Drummond

21,448 (90xa0% CI:


The Journal of Infectious Diseases | 2017

The Importance of Frailty in the Assessment of Influenza Vaccine Effectiveness Against Influenza-Related Hospitalization in Elderly People

Melissa K. Andrew; Vivek Shinde; Lingyun Ye; Todd Hatchette; François Haguinet; Gaël Dos Santos; Janet E. McElhaney; Ardith Ambrose; Guy Boivin; William R. Bowie; Ayman Chit; May Elsherif; Karen Green; Scott A. Halperin; Barbara Ibarguchi; Jennie Johnstone; Kevin Katz; Joanne M. Langley; Jason Leblanc; Mark Loeb; Donna MacKinnon-Cameron; Anne McCarthy; Allison McGeer; Jeff Powis; David J. Richardson; Makeda Semret; Grant Stiver; Sylvie Trottier; Louis Valiquette; Duncan Webster

21,152,


Vaccine | 2014

Toward more specific and transparent research and development costs: The case of seasonal influenza vaccines

Ayman Chit; Jayson L. Parker; Scott A. Halperin; Manny Papadimitropoulos; Murray Krahn; Paul Grootendorst

21,744) in 2015 US dollars. Hospital-onset CDI-attributable cost per case was


The Journal of Infectious Diseases | 2018

Relative Vaccine Effectiveness of High-Dose versus Standard-Dose Influenza Vaccines among Veterans Health Administration Patients

Yinong Young-Xu; Robertus van Aalst; Salaheddin M. Mahmud; Kenneth J. Rothman; Julia Thornton Snider; Daniel Westreich; Vincent Mor; Stefan Gravenstein; Jason K Lee; Edward W. Thommes; Michael D. Decker; Ayman Chit

34,157 (90xa0% CI:


PLOS ONE | 2017

The Annual Burden of Seasonal Influenza in the US Veterans Affairs Population

Yinong Young-Xu; Robertus van Aalst; Ellyn Russo; Jason K Lee; Ayman Chit

33,134,


BMC Infectious Diseases | 2017

Influenza vaccine effectiveness against influenza-related hospitalization during a season with mixed outbreaks of four influenza viruses: a test-negative case-control study in adults in Canada

Melissa K. Andrew; Vivek Shinde; Todd Hatchette; Ardith Ambrose; Guy Boivin; William R. Bowie; Ayman Chit; Gaël Dos Santos; May Elsherif; Karen Green; François Haguinet; Scott A. Halperin; Barbara Ibarguchi; Jennie Johnstone; Kevin Katz; Joanne M. Langley; Jason Leblanc; Mark Loeb; Donna MacKinnon-Cameron; Anne McCarthy; Janet E. McElhaney; Allison McGeer; Michaela Nichols; Jeff Powis; David J. Richardson; Makeda Semret; Grant Stiver; Sylvie Trottier; Louis Valiquette; Duncan Webster

35,180), which was 1.5 times the cost of community-onset CDI (

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Kevin Katz

North York General Hospital

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