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Methods for ECG Evaluation of Indicators of Cardiac Risk, and Susceptibility to Aconitine-induced Arrhythmias in Rats Following Status Epilepticus
08:28

Methods for ECG Evaluation of Indicators of Cardiac Risk, and Susceptibility to Aconitine-induced Arrhythmias in Rats Following Status Epilepticus

Published on: April 5, 2011

Coffee, caffeine, and risk of hospitalization for arrhythmias

Arthur L Klatsky, Amatul S Hasan, Mary Anne Armstrong

    The Permanente Journal
    |November 8, 2011
    PubMed

    Insights

    Coffee consumption appears to lower the risk of cardiac arrhythmia hospitalization. This large study found that drinking more coffee was associated with a reduced risk of arrhythmias, suggesting moderate caffeine intake is unlikely to increase risk.

    Area of Science:

    • Cardiology
    • Epidemiology
    • Nutritional Science

    Background:

    • Limited data exists on the relationship between coffee consumption and cardiac arrhythmias.
    • Investigating this association is crucial for public health recommendations.

    Purpose of the Study:

    • To examine the association between coffee drinking and the risk of cardiac arrhythmia.
    • To assess the relationship between total caffeine intake and arrhythmia risk.

    Main Methods:

    • A large population-based study involving 130,054 participants with prior coffee habit data.
    • Cox proportional hazards models were used to analyze coffee and caffeine intake in relation to arrhythmia hospitalization.
    • Adjustments were made for 8 covariates, and analyses were conducted on subgroups with detailed caffeine intake data.

    Main Results:

    • Higher coffee consumption was associated with a reduced risk of arrhythmia hospitalization (≥4 cups/day: HR 0.8, p=0.002).
    • A continuous analysis showed an inverse relationship between coffee intake and arrhythmia risk (HR per cup/day 0.97, p=0.001).
    • Total caffeine intake also demonstrated an inverse relationship with arrhythmia risk (highest vs. lowest quartile: HR 0.6, p=0.03).

    Conclusions:

    • The findings suggest an inverse relationship between coffee and caffeine intake and the risk of hospitalization for arrhythmias.
    • Moderate caffeine intake is unlikely to increase the risk of cardiac arrhythmias.
    Abstract

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