Prevalence and patterns of congenital heart diseases in Africa: a systematic review and meta-analysis protocol

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Tankeu, Aurel T
Bigna, Jean Joel R
Nansseu, Jobert Richie N
Aminde, Leopold Ndemnge
Danwang, Celestin
Temgoua, Mazou N
Noubiap, Jean Jacques N
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2017
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Abstract

INTRODUCTION: Congenital heart diseases (CHD) are common causes of cardiovascular morbidity and mortality among young children and adolescents living in Africa. Accurate epidemiological data are needed in order to evaluate and improve preventive strategies. This review aims to determine the prevalence of CHD and their main patterns in Africa. METHODS AND ANALYSIS: This systematic review and meta-analysis will include cross-sectional, case-control and cohort studies of populations residing inside African countries, which have reported the prevalence of CHD, confirmed by an echocardiographic examination and/or describing different patterns of these abnormalities in Africa. Relevant abstracts published without language restriction from 1 January 1986 to 31 December 2016 will be searched in PubMed, Exerpta Medica Database and online African journals as well as references of included articles and relevant reviews. Two review authors will independently screen, select studies, extract data and assess the risk of bias in each study. The study-specific estimates will be pooled through a random-effects meta-analysis model to obtain an overall summary estimate of the prevalence of CHD across studies. Clinical and statistical heterogeneity will be assessed, and we will pool studies judged to be clinically homogeneous. On the other hand, statistical heterogeneity will be evaluated by the χ2 test on Cochrane's Q statistic. Funnel-plots analysis and Egger's test will be used to detect publication bias. Results will be presented by geographic region (central, eastern, northern, southern and western Africa). ETHICS AND DISSEMINATION: The current study will be based on published data, and thus ethical approval is not required. This systematic review and meta-analysis is expected to serve as a base which could help in estimating and evaluating the burden of these abnormalities on the African continent. The final report of this study will be published in a peer-reviewed journal. TRIAL REGISTRATION NUMBER: PROSPERO CRD42016052880.

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BMJ Open

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7

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2

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© The Author(s) 2017. 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/

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Cardiovascular medicine and haematology

Clinical sciences

Health services and systems

Public health

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Science & Technology

Life Sciences & Biomedicine

Medicine, General & Internal

General & Internal Medicine

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Tankeu, AT; Bigna, JJR; Nansseu, JRN; Aminde, LN; Danwang, C; Temgoua, MN; Noubiap, JJN, Prevalence and patterns of congenital heart diseases in Africa: a systematic review and meta-analysis protocol, BMJ Open, 2017, 7 (2), pp. e015633:1-e015633:5

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