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Immortal-Time Bias in a Cohort Study of the Effects of Cholinesterase Inhibitors on Mortality in Heart Failure With Preserved Ejection Fraction.

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Title: Immortal-Time Bias in a Cohort Study of the Effects of Cholinesterase Inhibitors on Mortality in Heart Failure With Preserved Ejection Fraction.
Authors: Samarasinghe Y; Collaboration for Outcomes Research and Evaluation (CORE), Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, BC, Canada., MacDonald B; Collaboration for Outcomes Research and Evaluation (CORE), Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, BC, Canada., Turgeon R; Collaboration for Outcomes Research and Evaluation (CORE), Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, BC, Canada. Electronic address: ricky.turgeon@ubc.ca.
Source: The Canadian journal of cardiology [Can J Cardiol] 2026 Apr; Vol. 42 (4), pp. 809-810. Date of Electronic Publication: 2025 Dec 17.
Publication Type: Letter
Journal Info: Publisher: Elsevier Country of Publication: England NLM ID: 8510280 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1916-7075 (Electronic) Linking ISSN: 0828282X NLM ISO Abbreviation: Can J Cardiol Subsets: MEDLINE; In Process
Database: MEDLINE Ultimate
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  Data: Immortal-Time Bias in a Cohort Study of the Effects of Cholinesterase Inhibitors on Mortality in Heart Failure With Preserved Ejection Fraction.
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  Data: <searchLink fieldCode="AU" term="%22Samarasinghe+Y%22">Samarasinghe Y</searchLink>; Collaboration for Outcomes Research and Evaluation (CORE), Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, BC, Canada.<br /><searchLink fieldCode="AU" term="%22MacDonald+B%22">MacDonald B</searchLink>; Collaboration for Outcomes Research and Evaluation (CORE), Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, BC, Canada.<br /><searchLink fieldCode="AU" term="%22Turgeon+R%22">Turgeon R</searchLink>; Collaboration for Outcomes Research and Evaluation (CORE), Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, BC, Canada. Electronic address: ricky.turgeon@ubc.ca.
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  Data: <searchLink fieldCode="JN" term="%228510280%22">The Canadian journal of cardiology</searchLink> [Can J Cardiol] 2026 Apr; Vol. 42 (4), pp. 809-810. <i>Date of Electronic Publication: </i>2025 Dec 17.
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  Data: <i>Publisher: </i><searchLink fieldCode="PB" term="%22Elsevier%22">Elsevier </searchLink><i>Country of Publication: </i>England <i>NLM ID: </i>8510280 <i>Publication Model: </i>Print-Electronic <i>Cited Medium: </i>Internet <i>ISSN: </i>1916-7075 (Electronic) <i>Linking ISSN: </i><searchLink fieldCode="IS" term="%220828282X%22">0828282X </searchLink><i>NLM ISO Abbreviation: </i>Can J Cardiol <i>Subsets: </i>MEDLINE; In Process
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=mdl&AN=41419114
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        Value: 10.1016/j.cjca.2025.12.020
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      – TitleFull: Immortal-Time Bias in a Cohort Study of the Effects of Cholinesterase Inhibitors on Mortality in Heart Failure With Preserved Ejection Fraction.
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              Text: 2026 Apr
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              Y: 2026
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