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    Type 2 diabetes, glucose homeostasis and incident atrial fibrillation: The Atherosclerosis risk in communities study

    Access Status
    Fulltext not available
    Authors
    Huxley, Rachel
    Alonso, A.
    Lopez, F.
    Filion, K.
    Agarwal, S.
    Loehr, L.
    Soliman, E.
    Pankow, J.
    Selvin, E.
    Date
    2012
    Type
    Journal Article
    
    Metadata
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    Abstract

    Background: Type 2 diabetes has been inconsistently associated with the risk of atrial fibrillation (AF) in previous studies that have frequently been beset by methodological challenges. Design: Prospective cohort study. Setting: The Atherosclerosis Risk in Communities (ARIC) study. Participants: Detailed medical histories were obtained from 13 025 participants. Individuals were categorised as having no diabetes, pre-diabetes or diabetes based on the 2010 American Diabetes Association criteria at study baseline (1990-2). Main outcome measures: Diagnoses of incident AF were obtained to the end of 2007. Associations between type 2 diabetes and markers of glucose homeostasis and the incidence of AF were estimated using Cox proportional hazards models after adjusting for possible confounders. Results: Type 2 diabetes was associated with a significant increase in the risk of AF (HR 1.35, 95% CI 1.14 to 1.60) after adjustment for confounders. There was no indication that individuals with pre-diabetes or those with undiagnosed diabetes were at increased risk of AF compared with those without diabetes. A positive linear association was observed between HbA1c and the risk of AF in those with and without diabetes (HR 1.13, 95% CI 1.07 to 1.20) and HR 1.05, 95% CI 0.96 to 1.15 per 1% point increase, respectively). There was no association between fasting glucose or insulin in those without diabetes, but a significant association with fasting glucose was found in those with the condition. The results were similar in white subjects and African-Americans. Conclusions: Diabetes, HbA1c level and poor glycaemic control are independently associated with an increased risk of AF, but the underlying mechanisms governing the relationship are unknown and warrant further investigation.

    Citation
    Huxley, R. and Alonso, A. and Lopez, F. and Filion, K. and Agarwal, S. and Loehr, L. and Soliman, E. et al. 2012. Type 2 diabetes, glucose homeostasis and incident atrial fibrillation: The Atherosclerosis risk in communities study. Heart. 98 (2): pp. 133-138.
    Source Title
    Heart
    DOI
    10.1136/heartjnl-2011-300503
    ISSN
    1355-6037
    School
    School of Public Health
    URI
    http://hdl.handle.net/20.500.11937/24516
    Collection
    • Curtin Research Publications

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