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    Incidence of first heart failure hospitalisation and mortality in Aboriginal and non-Aboriginal patients in Western Australia, 2000–2009

    Access Status
    Fulltext not available
    Authors
    Teng, T.H.
    Katzenellenbogen, J.
    Thompson, S.
    Sanfilippo, F.
    Knuiman, M.
    Geelhoed, E.
    Hobbs, M.
    Bessarab, Dawn
    Hung, J.
    Date
    2014
    Type
    Journal Article
    
    Metadata
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    Citation
    Teng, T.H. and Katzenellenbogen, J. and Thompson, S. and Sanfilippo, F. and Knuiman, M. and Geelhoed, E. and Hobbs, M. et al. 2014. Incidence of first heart failure hospitalisation and mortality in Aboriginal and non-Aboriginal patients in Western Australia, 2000–2009. International Journal of Cardiology. 173: pp. 110-117.
    Source Title
    International Journal of Cardiology
    DOI
    10.1016/j.ijcard.2014.02.020
    ISSN
    0167-5273
    School
    Health Sciences Research and Graduate Studies
    URI
    http://hdl.handle.net/20.500.11937/26777
    Collection
    • Curtin Research Publications
    Abstract

    Objectives: To compare the incidence of first heart failure (HF) hospitalisation, antecedent risk factors and 1-year mortality between Aboriginal and non-Aboriginal populations in Western Australia (2000–2009). Methods: A population-based cohort aged 20–84 years comprising Aboriginal (n = 1013; mean 54 ± 14 years) and non-Aboriginal patients (n = 16,366; mean 71 ± 11 years) with first HF hospitalisation was evaluated. Age and sex-specific incidence rates and HF antecedents were compared between subpopulations. Regression models were used to examine 30-day and 1-year (in 30-day survivors) mortality. Results: Aboriginal patients were younger, more likely to reside in rural/remote areas (76% vs 23%) and to be women (50.6% vs 41.7%, all p < 0.001). Aboriginal (versus non-Aboriginal) HF incidence rates were 11-fold higher in men and 23-fold in women aged 20–39 years, declining to about 2-fold in patients aged 70–84 years. Ischaemic and rheumatic heart diseases were more common antecedents of HF in younger (< 55 years) Aboriginal versus non-Aboriginal patients (p < 0.001). Hypertension, diabetes, chronic kidney disease, renal failure, chronic obstructive pulmonary disease, and a high Charlson comorbidity index (>= 3) were also more prevalent in younger and older Aboriginal patients (p < 0.001). Although 30-day mortality was similar in both subpopulations, Aboriginal patients aged < 55 years had a 1.9 risk-adjusted hazard ratio (HR) for 1-year mortality (p = 0.015). Conclusions: Aboriginal people had substantially higher age and sex-specific HF incidence rate and prevalence of HF antecedents than their non-Aboriginal counterparts. HR for 1-year mortality was also significantly worse at younger ages, highlighting the urgent need for enhanced primary and secondary prevention of HF in this population.

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