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Joseph Musonda Chalwe

Vaal University of Technology, South Africa

Presentation Title:

Development of a structural equation model to examine the relationships between genetic polymorphisms and cardiovascular risk factors

Abstract

Genome-wide association studies (GWAS) have been used to discover genetic polymorphisms that affect cardiovascular diseases (CVDs). Structural equation modelling (SEM) has been identified as a robust multivariate analysis tool. However, there is a paucity of research that have conducted SEM in African populations. The purpose of this study was to create a model that may be used to examine the relationships between genetic polymorphisms and their respective cardiovascular risk (CVR) factors. The procedure involved three (3) steps. Firstly, creation of the latent variables and the hypothesis model. Confirmatory factor analysis (CFA) to examine the relationships between the latent variables: SNPs, dyslipidemia and metabolic syndrome with their respective indicators. Then finally, model fitting using the JASP statistical software version 0.16.4.0. The in-dicators for the SNPs and dyslipidemia all indicated significant factor loadings, -0.96 to 0.91 (p = < 0.001) and 0.92 to 0.96 (p = < 0.001), respectively. The indicators for metabolic syndrome also had significant coefficients of 0.20 (p = 0.673), 0.36 (p = 0.645) and 0.15 (p = 0.576) but they were not sta-tistically significant. There were no significant relationships observed between the SNPs, dyslipidemia and metabolic syndrome. The SEM produced an acceptable model according to the fit indices.

Biography

Joseph is a medical scientist with a passion and specialty in genetics. He has over 10 years collective experience in medical diagnosis and medical research with a growing list of publications in accredited journals including a book chapter. His background is medical technology inclusive of clinical pathology, genetic diversity assays, genotyping, mutation analyses, university lecturing and multidisciplinary research in areas like cardiovascular diseases (CVDs), cancer, nutrigenomics and COVID-19. For his doctoral thesis, he developed a cardiovascular risk model that can be used to examine the relationships between genetic polymorphisms and their respective risk (CVR) factors. Early detection of CVDs in asymptomatic individuals can help with precise treatment and reduce mortality rates, benefiting both individuals and public health systems. He later joined the medical devices and diagnostics industry offering application support to his colleagues and medical professionals.