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  • The highly neglected burden of resistant hypertension in Africa: a systematic review and meta-analysis

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    Author(s)
    Nansseu, Jobert Richie N
    Noubiap, Jean Jacques N
    Mengnjo, Michel K
    Aminde, Leopold Ndemnge
    Essouma, Mickael
    Jingi, Ahmadou M
    Bigna, Jean Joel R
    Griffith University Author(s)
    Aminde, Leopold N.
    Year published
    2016
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    Abstract
    OBJECTIVE: The hypertension epidemic in Africa collectively with very low rates of blood pressure control may predict an incremented prevalence of resistant hypertension (RH) across the continent. The aim of this study was to determine the prevalence of RH and associated risk factors in Africa. DATA SOURCES: We conducted a comprehensive search of electronic databases (PubMed, EMBASE, Africa Wide Information and Africa Index Medicus) completed by manual search of articles, regardless of language or publication date. METHODS: We included studies which have reported the prevalence and/or risk factors for RH in Africa from ...
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    OBJECTIVE: The hypertension epidemic in Africa collectively with very low rates of blood pressure control may predict an incremented prevalence of resistant hypertension (RH) across the continent. The aim of this study was to determine the prevalence of RH and associated risk factors in Africa. DATA SOURCES: We conducted a comprehensive search of electronic databases (PubMed, EMBASE, Africa Wide Information and Africa Index Medicus) completed by manual search of articles, regardless of language or publication date. METHODS: We included studies which have reported the prevalence and/or risk factors for RH in Africa from inception to 19 May 2016. Forest plots were drawn to visualise the combined prevalence of RH and extent of statistical heterogeneity between studies. RESULTS: Out of 259 retrieved studies, only 5 from Cameroon, Nigeria, Burkina Faso, Lesotho and Algeria with a total population of 4 068 patients were finally included in this review. There was no study from the Eastern part of Africa. Though the definition of RH was not similar across studies, its prevalence was respectively 11.7%, 4.9%, 14.6%, 14.3% and 19.0%, with an overall pooled prevalence of 12.1% (95% CI 8.0% to 17.7%). Potential risk factors were: non-compliance to treatment, ageing, male sex, dyslipidaemia, metabolic syndrome, previous cardiovascular events, physical inactivity and stress, but not excessive salt intake, alcohol and coffee ingestions. Moreover, diabetes, smoking, obesity and renal insufficiency yielded discrepant results. CONCLUSIONS: There is a huge dearth of research on the epidemiology of RH in Africa. Thereby, an extensive study of RH prevalence and risk factors is still largely warranted to curtail the high and continuously increasing burden of hypertension across Africa.
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    Journal Title
    BMJ Open
    Volume
    6
    Issue
    9
    DOI
    https://doi.org/10.1136/bmjopen-2016-011452
    Copyright Statement
    © The Author(s) 2016. This is an Open Access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/
    Subject
    Clinical sciences
    Health services and systems
    Public health
    Other health sciences
    Science & Technology
    Life Sciences & Biomedicine
    Medicine, General & Internal
    General & Internal Medicine
    SUB-SAHARAN AFRICA
    Publication URI
    http://hdl.handle.net/10072/387450
    Collection
    • Journal articles

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