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Showing 1-10 of 238

Journal Article

06/07/2022

Effectiveness of a fourth dose of COVID-19 mRNA vaccine against the omicron variant among long term care residents in Ontario, Canada: test negative design study

Grewal R, Kitchen SA, Nguyen L, Buchan SA, Wilson SE, Costa AP, Kwong JC. BMJ. 2022; 378:e071502. Epub 2022 Jul 6.

Journal Article

01/07/2022

Relationship of frailty with excess mortality during the COVID-19 pandemic: a population-level study in Ontario, Canada

Wijeysundera HC, Abdel-Qadir H, Qiu F, Manoragavan R, Austin PC, Kapral MK, Kwong JC, Sun LY, Ross HJ, Udell JA, Roifman I, Yu AYX, Chu A, McAlister FA, Lee DS. Aging Clin Exp Res. 2022; 34(10):2557-65. Epub 2022 Jul 1.

Journal Article

28/06/2022

Estimating population-based incidence of community-acquired pneumonia and acute otitis media in children and adults in Ontario and British Columbia using health administrative data, 2005-2018: a Canadian Immunisation Research Network (CIRN) study

Nasreen S, Wang J, Sadarangani M, Kwong JC, Quach C, Crowcroft NS, Wilson SE, McGeer A, Morris SK, Kellner JD, Sander B, Kus JV, Hoang L, Marra F, Fadel SA. BMJ Open Respir Res. 2022; 9(1):e001218. Epub 2022 Jun 28.

Journal Article

16/06/2022

Vaccine effectiveness of BNT162b2 against Delta and Omicron variants in adolescents

Buchan SA, Nguyen L, Wilson SE, Kitchen SA, Kwong JC. Pediatrics. 2022; Jun 16 [Epub ahead of print].

Journal Article

24/05/2022

Association between long-term exposure to ambient air pollution and COVID-19 severity: a prospective cohort study

Chen C, Wang J, Kwong J, Kim J, van Donkelaar A, Martin RV, Hystad P, Su Y, Lavigne E, Kirby-McGregor M, Kaufman JS, Benmarhnia T, Chen H. CMAJ. 2022; 194(20):E693-700. Epub 2022 May 24.

Journal Article

24/05/2022

Predictors of all-cause mortality among patients hospitalized with influenza, respiratory syncytial virus, or SARS-CoV-2

Hamilton MA, Liu Y, Calzavara A, Sundaram ME, Djebli M, Darvin D, Baral S, Kustra R, Kwong JC, Mishra S. Influenza Other Respir Viruses. 2022; May 24 [Epub ahead of print].

Journal Article

16/05/2022

Effectiveness of first, second, and third COVID-19 vaccine doses in solid organ transplant recipients: a population-based cohort study from Canada

Naylor K, Kim SJ, Smith G, McArthur E, Kwong JC, Dixon SN, Treleaven D, Knoll GA. Am J Transplant. 2022; May 16 [Epub ahead of print].

Journal Article

02/05/2022

The mean attributable healthcare costs associated with hepatitis B virus in Ontario, Canada: a matched cohort study

Nanwa N, Kwong JC, Feld JJ, Wu CF, Sander B. Can Liver J. 2022; 5(3):339-61. Epub 2022 May 2.

Journal Article

27/04/2022

Background incidence rates of adverse events of special interest related to COVID-19 vaccines in Ontario, Canada, 2015 to 2020, to inform COVID-19 vaccine safety surveillance

Nasreen S, Calzavara A, Buchan SA, Thampi N, Johnson C, Wilson SE, Kwong JC; on behalf of the Canadian Immunization Research Network CIRN Provincial Collaborative Network PCN Ontario investigators. Vaccine. 2022; 40(24):3305-12. Epub 2022 Apr 27.

Journal Article

14/04/2022

Vaccine effectiveness against SARS-CoV-2 infection and severe outcomes among individuals with immune-mediated inflammatory diseases tested between March 1 and Nov 22, 2021, in Ontario, Canada: a population-based analysis

Widdifield J, Kwong JC, Chen S, Eder L, Benchimol EI, Kaplan GG, Hitchon C, Aviña-Zubieta JA, Lacaille D, Chung H, Bernatsky S. Lancet Rheumatol. 2022; Apr 14 [Epub ahead of print].

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Effectiveness of a fourth dose of COVID-19 mRNA vaccine against the omicron variant among long term care residents in Ontario, Canada: test negative design study

Relationship of frailty with excess mortality during the COVID-19 pandemic: a population-level study in Ontario, Canada

Estimating population-based incidence of community-acquired pneumonia and acute otitis media in children and adults in Ontario and British Columbia using health administrative data, 2005-2018: a Canadian Immunisation Research Network (CIRN) study

Vaccine effectiveness of BNT162b2 against Delta and Omicron variants in adolescents

Association between long-term exposure to ambient air pollution and COVID-19 severity: a prospective cohort study

Predictors of all-cause mortality among patients hospitalized with influenza, respiratory syncytial virus, or SARS-CoV-2

Effectiveness of first, second, and third COVID-19 vaccine doses in solid organ transplant recipients: a population-based cohort study from Canada

The mean attributable healthcare costs associated with hepatitis B virus in Ontario, Canada: a matched cohort study

Background incidence rates of adverse events of special interest related to COVID-19 vaccines in Ontario, Canada, 2015 to 2020, to inform COVID-19 vaccine safety surveillance

Vaccine effectiveness against SARS-CoV-2 infection and severe outcomes among individuals with immune-mediated inflammatory diseases tested between March 1 and Nov 22, 2021, in Ontario, Canada: a population-based analysis