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

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 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.

journal_name

BMJ Open

journal_title

BMJ open

authors

Nansseu JR,Noubiap JJ,Mengnjo MK,Aminde LN,Essouma M,Jingi AM,Bigna JJ

doi

10.1136/bmjopen-2016-011452

subject

Has Abstract

pub_date

2016-09-20 00:00:00

pages

e011452

issue

9

issn

2044-6055

pii

bmjopen-2016-011452

journal_volume

6

pub_type

杂志文章,meta分析,评审

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