Browsing by Author "Opperman, Maretha"

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    Anthropometric indices and cut-off points for screening of metabolic syndrome among South African taxi drivers
    (Frontiers Media, 2022) Sekgala, Machoene Derrick; Opperman, Maretha; Mpahleni, Buhle
    Detecting the early onset of metabolic syndrome (MetS) allows for quick intervention which may slow progression to a variety of health consequences, hence, determining the best measurement to detect MetS is essential. This research aimed at examining the MetS predictive power of anthropometric indices, such as body mass index (BMI), waist circumference (WC), waist-to-height ratio (WHtR), body shape index (ABSI), body roundness index (BRI), percentage body fat (%BF), conicity index (CI), and Clínica Universidad de Navarra-body adiposity estimator (CUN-BAE) to determine the cut-o􀀀 points to identify male South African taxi drivers with MetS.
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    Comparison of the ability of anthropometric indices to predict the risk of diabetes mellitus in South African males: Sanhanes-1
    (MDPI, 2022) Sekgala, Machoene D.; Sewpaul, Ronel; Opperman, Maretha
    This study aimed to assess the sensitivity of body mass index (BMI) to predict the risk of diabetes mellitus (DM) and whether waist circumference (WC), waist-to-hip (WHR) and waist-toheight (WHtR) ratios are better predictors of the risk of DM than BMI in South African men aged 20 years and older. Data from the first South African National Health and Nutrition Examination Survey (SANHANES-1) were used. Overall, 1405 men who had valid HbA1c outcomes were included. The sensitivity, specificity, and optimal cut-off points for predicting DM were determined using the receiver operating characteristic (ROC) curve analysis. A total of 34.6% percent of the study participants were overweight/obese, while 10.5%, 10.4%, 36.6% and 61.0% had HbA1c, WC, WHR and WHtR above the normal reference ranges, respectively.
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    Sociodemographic and lifestyle factors and the risk of metabolic syndrome in taxi drivers: A focus on street food
    (Frontiers Media, 2023) Sekgala, Machoene Derrick; Opperman, Maretha; Mpahleni, Buhle
    In South Africa, similar to other populous countries, the taxi industry is an important form of transportation that contributes to the country’s development. As a result, minibus taxi driving is an occupation characterized by strenuous activities such as long hours of driving, limited rest, and challenges related to securing passengers, among several others. Consequently, to combat stress, some commercial drivers resort to smoking, overeating unhealthy food sold at transportation interchange areas (i.e., taxi ranks), and participating in sedentary behaviors. Most of these activities are risk factors for metabolic syndrome (MetS).