Pooled prevalence and subgroup variations of Tetralogy of Fallot among children and adolescents with congenital heart defect in Sub-Saharan Africa: A systematic review and meta-analysis

Tetralogy of Fallot is one of the critical congenital heart defects needing intervention within the first year of life. This review aims to systematically assess the prevalence of Tetralogy of Fallot among children and adolescents with congenital heart defects in Sub-Saharan Africa from January 2000...

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Published inPloS one Vol. 20; no. 1; p. e0311686
Main Authors Geleta, Biniam Endale, Mulu, Abay
Format Journal Article
LanguageEnglish
Published United States Public Library of Science 17.01.2025
Public Library of Science (PLoS)
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ISSN1932-6203
1932-6203
DOI10.1371/journal.pone.0311686

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Abstract Tetralogy of Fallot is one of the critical congenital heart defects needing intervention within the first year of life. This review aims to systematically assess the prevalence of Tetralogy of Fallot among children and adolescents with congenital heart defects in Sub-Saharan Africa from January 2000 to January 2024. All original observational studies focused on children and adolescent population diagnosed with congenital heart defects within Sub-Saharan Africa; reported the primary outcome of interest were included. Prisma guidelines were utilized to perform this systematic review and meta-analysis. Electronic databases including Medline (PubMed), Scopus, Google Scholar, and African Index Medicus were searched. A weighted inverse variance random-effects model was employed to estimate the pooled prevalence of Tetralogy of Fallot. Thirty-one studies included encompassing a total of 11,265 participants from 15 Sub-Saharan African countries with representation from Southern (4 studies, 619 participants), Central (5 studies, 2,220 participants), Eastern (11 studies, 3,384 participants), and Western (11 studies, 5,042 participants). Cross-sectional studies comprised (25 studies, 8,909 participants), and cohort design (6 studies, 2,356 participants). The analysis revealed a pooled prevalence of 10% (95% CI: 9%; 12%) with I2 (77%, p-value < 0.01). The subgroup analysis based on geographic regions revealed statistically significant difference. The prevalence of Tetralogy of Fallot observed was found considerably higher compared to global estimate and reports of developed countries. In a subgroup analysis based on the geographic region, a surprisingly high prevalence was reported across all regions of Sub-Saharan Africa. The substantial disparities and high prevalence observed underscores the complex interplay of factors influencing occurrence of Tetralogy of Fallot. Identifying the true scope of Tetralogy of Fallot burden may help policymakers and healthcare providers to prioritize interventions, optimize resource allocation, and potentially improve its outcomes in Sub-Saharan Africa.
AbstractList Background Tetralogy of Fallot is one of the critical congenital heart defects needing intervention within the first year of life. Objective This review aims to systematically assess the prevalence of Tetralogy of Fallot among children and adolescents with congenital heart defects in Sub-Saharan Africa from January 2000 to January 2024. Methods All original observational studies focused on children and adolescent population diagnosed with congenital heart defects within Sub-Saharan Africa; reported the primary outcome of interest were included. Prisma guidelines were utilized to perform this systematic review and meta-analysis. Electronic databases including Medline (PubMed), Scopus, Google Scholar, and African Index Medicus were searched. A weighted inverse variance random-effects model was employed to estimate the pooled prevalence of Tetralogy of Fallot. Results Thirty-one studies included encompassing a total of 11,265 participants from 15 Sub-Saharan African countries with representation from Southern (4 studies, 619 participants), Central (5 studies, 2,220 participants), Eastern (11 studies, 3,384 participants), and Western (11 studies, 5,042 participants). Cross-sectional studies comprised (25 studies, 8,909 participants), and cohort design (6 studies, 2,356 participants). The analysis revealed a pooled prevalence of 10% (95% CI: 9%; 12%) with I.sup.2 (77%, p-value < 0.01). The subgroup analysis based on geographic regions revealed statistically significant difference. Conclusions and future implications The prevalence of Tetralogy of Fallot observed was found considerably higher compared to global estimate and reports of developed countries. In a subgroup analysis based on the geographic region, a surprisingly high prevalence was reported across all regions of Sub-Saharan Africa. The substantial disparities and high prevalence observed underscores the complex interplay of factors influencing occurrence of Tetralogy of Fallot. Identifying the true scope of Tetralogy of Fallot burden may help policymakers and healthcare providers to prioritize interventions, optimize resource allocation, and potentially improve its outcomes in Sub-Saharan Africa.
Tetralogy of Fallot is one of the critical congenital heart defects needing intervention within the first year of life. This review aims to systematically assess the prevalence of Tetralogy of Fallot among children and adolescents with congenital heart defects in Sub-Saharan Africa from January 2000 to January 2024. All original observational studies focused on children and adolescent population diagnosed with congenital heart defects within Sub-Saharan Africa; reported the primary outcome of interest were included. Prisma guidelines were utilized to perform this systematic review and meta-analysis. Electronic databases including Medline (PubMed), Scopus, Google Scholar, and African Index Medicus were searched. A weighted inverse variance random-effects model was employed to estimate the pooled prevalence of Tetralogy of Fallot. Thirty-one studies included encompassing a total of 11,265 participants from 15 Sub-Saharan African countries with representation from Southern (4 studies, 619 participants), Central (5 studies, 2,220 participants), Eastern (11 studies, 3,384 participants), and Western (11 studies, 5,042 participants). Cross-sectional studies comprised (25 studies, 8,909 participants), and cohort design (6 studies, 2,356 participants). The analysis revealed a pooled prevalence of 10% (95% CI: 9%; 12%) with I.sup.2 (77%, p-value < 0.01). The subgroup analysis based on geographic regions revealed statistically significant difference. The prevalence of Tetralogy of Fallot observed was found considerably higher compared to global estimate and reports of developed countries. In a subgroup analysis based on the geographic region, a surprisingly high prevalence was reported across all regions of Sub-Saharan Africa. The substantial disparities and high prevalence observed underscores the complex interplay of factors influencing occurrence of Tetralogy of Fallot. Identifying the true scope of Tetralogy of Fallot burden may help policymakers and healthcare providers to prioritize interventions, optimize resource allocation, and potentially improve its outcomes in Sub-Saharan Africa.
BackgroundTetralogy of Fallot is one of the critical congenital heart defects needing intervention within the first year of life.ObjectiveThis review aims to systematically assess the prevalence of Tetralogy of Fallot among children and adolescents with congenital heart defects in Sub-Saharan Africa from January 2000 to January 2024.MethodsAll original observational studies focused on children and adolescent population diagnosed with congenital heart defects within Sub-Saharan Africa; reported the primary outcome of interest were included. Prisma guidelines were utilized to perform this systematic review and meta-analysis. Electronic databases including Medline (PubMed), Scopus, Google Scholar, and African Index Medicus were searched. A weighted inverse variance random-effects model was employed to estimate the pooled prevalence of Tetralogy of Fallot.ResultsThirty-one studies included encompassing a total of 11,265 participants from 15 Sub-Saharan African countries with representation from Southern (4 studies, 619 participants), Central (5 studies, 2,220 participants), Eastern (11 studies, 3,384 participants), and Western (11 studies, 5,042 participants). Cross-sectional studies comprised (25 studies, 8,909 participants), and cohort design (6 studies, 2,356 participants). The analysis revealed a pooled prevalence of 10% (95% CI: 9%; 12%) with I2 (77%, p-value < 0.01). The subgroup analysis based on geographic regions revealed statistically significant difference.Conclusions and future implicationsThe prevalence of Tetralogy of Fallot observed was found considerably higher compared to global estimate and reports of developed countries. In a subgroup analysis based on the geographic region, a surprisingly high prevalence was reported across all regions of Sub-Saharan Africa. The substantial disparities and high prevalence observed underscores the complex interplay of factors influencing occurrence of Tetralogy of Fallot. Identifying the true scope of Tetralogy of Fallot burden may help policymakers and healthcare providers to prioritize interventions, optimize resource allocation, and potentially improve its outcomes in Sub-Saharan Africa.
Tetralogy of Fallot is one of the critical congenital heart defects needing intervention within the first year of life. This review aims to systematically assess the prevalence of Tetralogy of Fallot among children and adolescents with congenital heart defects in Sub-Saharan Africa from January 2000 to January 2024. All original observational studies focused on children and adolescent population diagnosed with congenital heart defects within Sub-Saharan Africa; reported the primary outcome of interest were included. Prisma guidelines were utilized to perform this systematic review and meta-analysis. Electronic databases including Medline (PubMed), Scopus, Google Scholar, and African Index Medicus were searched. A weighted inverse variance random-effects model was employed to estimate the pooled prevalence of Tetralogy of Fallot. Thirty-one studies included encompassing a total of 11,265 participants from 15 Sub-Saharan African countries with representation from Southern (4 studies, 619 participants), Central (5 studies, 2,220 participants), Eastern (11 studies, 3,384 participants), and Western (11 studies, 5,042 participants). Cross-sectional studies comprised (25 studies, 8,909 participants), and cohort design (6 studies, 2,356 participants). The analysis revealed a pooled prevalence of 10% (95% CI: 9%; 12%) with I2 (77%, p-value < 0.01). The subgroup analysis based on geographic regions revealed statistically significant difference. The prevalence of Tetralogy of Fallot observed was found considerably higher compared to global estimate and reports of developed countries. In a subgroup analysis based on the geographic region, a surprisingly high prevalence was reported across all regions of Sub-Saharan Africa. The substantial disparities and high prevalence observed underscores the complex interplay of factors influencing occurrence of Tetralogy of Fallot. Identifying the true scope of Tetralogy of Fallot burden may help policymakers and healthcare providers to prioritize interventions, optimize resource allocation, and potentially improve its outcomes in Sub-Saharan Africa.
Background Tetralogy of Fallot is one of the critical congenital heart defects needing intervention within the first year of life. Objective This review aims to systematically assess the prevalence of Tetralogy of Fallot among children and adolescents with congenital heart defects in Sub-Saharan Africa from January 2000 to January 2024. Methods All original observational studies focused on children and adolescent population diagnosed with congenital heart defects within Sub-Saharan Africa; reported the primary outcome of interest were included. Prisma guidelines were utilized to perform this systematic review and meta-analysis. Electronic databases including Medline (PubMed), Scopus, Google Scholar, and African Index Medicus were searched. A weighted inverse variance random-effects model was employed to estimate the pooled prevalence of Tetralogy of Fallot. Results Thirty-one studies included encompassing a total of 11,265 participants from 15 Sub-Saharan African countries with representation from Southern (4 studies, 619 participants), Central (5 studies, 2,220 participants), Eastern (11 studies, 3,384 participants), and Western (11 studies, 5,042 participants). Cross-sectional studies comprised (25 studies, 8,909 participants), and cohort design (6 studies, 2,356 participants). The analysis revealed a pooled prevalence of 10% (95% CI: 9%; 12%) with I 2 (77%, p-value < 0.01). The subgroup analysis based on geographic regions revealed statistically significant difference. Conclusions and future implications The prevalence of Tetralogy of Fallot observed was found considerably higher compared to global estimate and reports of developed countries. In a subgroup analysis based on the geographic region, a surprisingly high prevalence was reported across all regions of Sub-Saharan Africa. The substantial disparities and high prevalence observed underscores the complex interplay of factors influencing occurrence of Tetralogy of Fallot. Identifying the true scope of Tetralogy of Fallot burden may help policymakers and healthcare providers to prioritize interventions, optimize resource allocation, and potentially improve its outcomes in Sub-Saharan Africa.
Tetralogy of Fallot is one of the critical congenital heart defects needing intervention within the first year of life.BACKGROUNDTetralogy of Fallot is one of the critical congenital heart defects needing intervention within the first year of life.This review aims to systematically assess the prevalence of Tetralogy of Fallot among children and adolescents with congenital heart defects in Sub-Saharan Africa from January 2000 to January 2024.OBJECTIVEThis review aims to systematically assess the prevalence of Tetralogy of Fallot among children and adolescents with congenital heart defects in Sub-Saharan Africa from January 2000 to January 2024.All original observational studies focused on children and adolescent population diagnosed with congenital heart defects within Sub-Saharan Africa; reported the primary outcome of interest were included. Prisma guidelines were utilized to perform this systematic review and meta-analysis. Electronic databases including Medline (PubMed), Scopus, Google Scholar, and African Index Medicus were searched. A weighted inverse variance random-effects model was employed to estimate the pooled prevalence of Tetralogy of Fallot.METHODSAll original observational studies focused on children and adolescent population diagnosed with congenital heart defects within Sub-Saharan Africa; reported the primary outcome of interest were included. Prisma guidelines were utilized to perform this systematic review and meta-analysis. Electronic databases including Medline (PubMed), Scopus, Google Scholar, and African Index Medicus were searched. A weighted inverse variance random-effects model was employed to estimate the pooled prevalence of Tetralogy of Fallot.Thirty-one studies included encompassing a total of 11,265 participants from 15 Sub-Saharan African countries with representation from Southern (4 studies, 619 participants), Central (5 studies, 2,220 participants), Eastern (11 studies, 3,384 participants), and Western (11 studies, 5,042 participants). Cross-sectional studies comprised (25 studies, 8,909 participants), and cohort design (6 studies, 2,356 participants). The analysis revealed a pooled prevalence of 10% (95% CI: 9%; 12%) with I2 (77%, p-value < 0.01). The subgroup analysis based on geographic regions revealed statistically significant difference.RESULTSThirty-one studies included encompassing a total of 11,265 participants from 15 Sub-Saharan African countries with representation from Southern (4 studies, 619 participants), Central (5 studies, 2,220 participants), Eastern (11 studies, 3,384 participants), and Western (11 studies, 5,042 participants). Cross-sectional studies comprised (25 studies, 8,909 participants), and cohort design (6 studies, 2,356 participants). The analysis revealed a pooled prevalence of 10% (95% CI: 9%; 12%) with I2 (77%, p-value < 0.01). The subgroup analysis based on geographic regions revealed statistically significant difference.The prevalence of Tetralogy of Fallot observed was found considerably higher compared to global estimate and reports of developed countries. In a subgroup analysis based on the geographic region, a surprisingly high prevalence was reported across all regions of Sub-Saharan Africa. The substantial disparities and high prevalence observed underscores the complex interplay of factors influencing occurrence of Tetralogy of Fallot. Identifying the true scope of Tetralogy of Fallot burden may help policymakers and healthcare providers to prioritize interventions, optimize resource allocation, and potentially improve its outcomes in Sub-Saharan Africa.CONCLUSIONS AND FUTURE IMPLICATIONSThe prevalence of Tetralogy of Fallot observed was found considerably higher compared to global estimate and reports of developed countries. In a subgroup analysis based on the geographic region, a surprisingly high prevalence was reported across all regions of Sub-Saharan Africa. The substantial disparities and high prevalence observed underscores the complex interplay of factors influencing occurrence of Tetralogy of Fallot. Identifying the true scope of Tetralogy of Fallot burden may help policymakers and healthcare providers to prioritize interventions, optimize resource allocation, and potentially improve its outcomes in Sub-Saharan Africa.
Audience Academic
Author Geleta, Biniam Endale
Mulu, Abay
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BackLink https://www.ncbi.nlm.nih.gov/pubmed/39823394$$D View this record in MEDLINE/PubMed
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2025 Geleta, Mulu. This is an open access article distributed under the terms of the Creative Commons Attribution License: http://creativecommons.org/licenses/by/4.0/ (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.
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Snippet Tetralogy of Fallot is one of the critical congenital heart defects needing intervention within the first year of life. This review aims to systematically...
Background Tetralogy of Fallot is one of the critical congenital heart defects needing intervention within the first year of life. Objective This review aims...
Tetralogy of Fallot is one of the critical congenital heart defects needing intervention within the first year of life. This review aims to systematically...
BackgroundTetralogy of Fallot is one of the critical congenital heart defects needing intervention within the first year of life.ObjectiveThis review aims to...
Tetralogy of Fallot is one of the critical congenital heart defects needing intervention within the first year of life.BACKGROUNDTetralogy of Fallot is one of...
Background Tetralogy of Fallot is one of the critical congenital heart defects needing intervention within the first year of life. Objective This review aims...
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SubjectTerms Adolescent
Adolescents
Africa South of the Sahara - epidemiology
Births
Boolean
Cardiovascular disease
Child
Children
Children & youth
Congenital diseases
Defects
Demographic aspects
Developed countries
Diseases
Female
Health care access
Heart
Heart Defects, Congenital - epidemiology
Humans
Industrialized nations
Intervention
Keywords
Male
Medical Subject Headings-MeSH
Meta-analysis
Observational studies
Population studies
Prevalence
Resource allocation
Statistical analysis
Statistics
Subgroups
Systematic review
Teenagers
Tetralogy of Fallot
Tetralogy of Fallot - epidemiology
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Title Pooled prevalence and subgroup variations of Tetralogy of Fallot among children and adolescents with congenital heart defect in Sub-Saharan Africa: A systematic review and meta-analysis
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