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BILOG NADINE, LELE ELYSÉECLAUDEBIKA, NDONGO JERSONMEKOULOU, BILOA YVESJULIENMBAMA, BWEGNE JOSIANEBINDINGASSE, NDEMBA PEGUYBRICEASSOMO, ETAGA NOËLBABAYANA, MANDENGUE SAMUELHONORÉ, NGOA LAURENTSERGEETOUNDI, TEMFEMO ABDOU, BONGUE BIENVENU, GUYOT JESSICA, AYINA CLARISSENOELAYINA. Prevalence of the metabolic syndrome and its components in secondary school student population in the city of Douala, Cameroon. J Public Health Afr 2023; 14:2465. [PMID: 37927359 PMCID: PMC10621482 DOI: 10.4081/jphia.2023.2465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 03/24/2023] [Indexed: 11/07/2023] Open
Abstract
While the burden of metabolic syndrome (MetS) is still increasing in sub-Saharan Africa, there is a lack of data among young Cameroonian population. The aim of this study was to evaluate the prevalence of MetS and its components among secondary school students in Douala. This was a cross-sectional prospective study carried out on 803 students recruited from February to May 2021 in public and private secondary schools in Douala city, Cameroon. MetS was assessed according to the IDF/AHA/NHLBI 2009 consensus definition. The data collection consisted of a questionnaire on sociodemographic characteristics, measurement of anthropometric parameters (height, weight, body mass index (BMI), waist circumference) and overnight fasting blood sample. Blood pressure (BP), fasting blood glucose, HDL cholesterol and triglycerides were measured using standard methods. The mean age was 18±3 years, 73.3% female. The prevalence of MetS was 27.4%, common among participants aged ≥16 years, and higher in females compare to males (33.7% vs. 11.1%, P#x003C;0.0001). The prevalence of MetS components i.e abdominal obesity, high BP, fasting hyperglycemia, low-level HDL cholesterol and hypertriglyceridemia were 14.1, 18.1, 42.8, 51.4 and 38.6% respectively. All MetS components were significantly higher in females compared to males except for high BP which was similar among the genders. In our study population, the prevalence of MetS is high and this calls for improved monitoring to limit the evolution of associated cardiometabolic complications among young Cameroonians.
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Affiliation(s)
- NADINE BILOG
- Department of Animal Biology, Faculty of Science, University of Douala
- Physiology and Medicine of Physical Activities and Sports Unit, University of Douala, Cameroon
| | - ELYSÉE CLAUDE BIKA LELE
- Department of Animal Biology, Faculty of Science, University of Douala
- Physiology and Medicine of Physical Activities and Sports Unit, University of Douala, Cameroon
| | - JERSON MEKOULOU NDONGO
- Department of Animal Biology, Faculty of Science, University of Douala
- Physiology and Medicine of Physical Activities and Sports Unit, University of Douala, Cameroon
| | | | | | - PEGUY BRICE ASSOMO NDEMBA
- Physiology and Medicine of Physical Activities and Sports Unit, University of Douala, Cameroon
- Faculty of Medicine and Biomedical Sciences, University of Yaounde 1 Yaounde
| | - NOËL BABAYANA ETAGA
- Department of Animal Biology, Faculty of Science, University of Douala
- Physiology and Medicine of Physical Activities and Sports Unit, University of Douala, Cameroon
| | - SAMUEL HONORÉ MANDENGUE
- Department of Animal Biology, Faculty of Science, University of Douala
- Physiology and Medicine of Physical Activities and Sports Unit, University of Douala, Cameroon
| | | | - ABDOU TEMFEMO
- Faculty of Medicine and Pharmaceutical Sciences, University of Douala, Cameroon
| | - BIENVENU BONGUE
- Sainbiose Inserm U1059 Laboratory, Jean Monnet University, Saint-Étienne, France
| | - JESSICA GUYOT
- Sainbiose Inserm U1059 Laboratory, Jean Monnet University, Saint-Étienne, France
| | - CLARISSE NOEL AYINA AYINA
- Department of Animal Biology, Faculty of Science, University of Douala
- Physiology and Medicine of Physical Activities and Sports Unit, University of Douala, Cameroon
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Mphekgwana PM, Sono-Setati ME, Mokgophi TV, Kifle YG, Madiba S, Modjadji P. Retrospective Analysis of the Outcome of Hospitalized COVID-19 Patients with Coexisting Metabolic Syndrome and HIV Using Multinomial Logistic Regression. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:ijerph20105799. [PMID: 37239527 DOI: 10.3390/ijerph20105799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 05/05/2023] [Accepted: 05/09/2023] [Indexed: 05/28/2023]
Abstract
Globally, the coexistence of metabolic syndrome (MetS) and HIV has become an important public health problem, putting coronavirus disease 19 (COVID-19) hospitalized patients at risk for severe manifestations and higher mortality. A retrospective cross-sectional analysis was conducted to identify factors and determine their relationships with hospitalization outcomes for COVID-19 patients using secondary data from the Department of Health in Limpopo Province, South Africa. The study included 15,151 patient clinical records of laboratory-confirmed COVID-19 cases. Data on MetS was extracted in the form of a cluster of metabolic factors. These included abdominal obesity, high blood pressure, and impaired fasting glucose captured on an information sheet. Spatial distribution of mortality among patients was observed; overall (21-33%), hypertension (32-43%), diabetes (34-47%), and HIV (31-45%). A multinomial logistic regression model was applied to identify factors and determine their relationships with hospitalization outcomes for COVID-19 patients. Mortality among COVID-19 patients was associated with being older (≥50+ years), male, and HIV positive. Having hypertension and diabetes reduced the duration from admission to death. Being transferred from a primary health facility (PHC) to a referral hospital among COVID-19 patients was associated with ventilation and less chance of being transferred to another health facility when having HIV plus MetS. Patients with MetS had a higher mortality rate within seven days of hospitalization, followed by those with obesity as an individual component. MetS and its components such as hypertension, diabetes, and obesity should be considered a composite predictor of COVID-19 fatal outcomes, mostly, increased risk of mortality. The study increases our understanding of the common contributing variables to severe manifestations and a greater mortality risk among COVID-19 hospitalized patients by investigating the influence of MetS, its components, and HIV coexistence. Prevention remains the mainstay for both communicable and non-communicable diseases. The findings underscore the need for improvement of critical care resources across South Africa.
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Affiliation(s)
- Peter M Mphekgwana
- Research Administration and Development, University of Limpopo, Polokwane 0727, South Africa
| | - Musa E Sono-Setati
- Department of Public Health Medicine, University of Limpopo, Private Bag X1106, Sovenga, Polokwane 0727, South Africa
| | - Tania V Mokgophi
- Department of Statistics and Operations Research, University of Limpopo, Polokwane 0727, South Africa
| | - Yehenew G Kifle
- Department of Mathematics and Statistics, University of Maryland Baltimore County, Baltimore, MD 21250, USA
| | - Sphiwe Madiba
- Faculty of Health Sciences, University of Limpopo, Polokwane 0727, South Africa
| | - Perpetua Modjadji
- Non-Communicable Diseases Research Unit, South African Medical Research Council, Cape Town 7505, South Africa
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Mokwena K, Modjadji P. Pre-morbid cardiometabolic risks among South Africans living in informal settlements. Cardiovasc J Afr 2023; 34:23-29. [PMID: 35687088 PMCID: PMC10392806 DOI: 10.5830/cvja-2022-021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Accepted: 04/08/2022] [Indexed: 06/07/2023] Open
Abstract
AIM Numerous studies have been conducted on cardiometabolic risk factors in South Africa. However, not much has been done in informal settlement populations faced with their own set of health risks. This study screened for pre-morbid cardiometabolic risks and associated factors among adults living in informal settlements in South Africa. METHODS A cross-sectional study used the WHO STEPwise questionnaire to collect data on demography, anthropometry, blood pressure, and glucose and cholesterol levels (n = 329). Cardiometabolic risks were based on the criteria considered by the International Diabetes Federation and the National Cholesterol Education Program Adult Treatment Panel III. Data were analysed using STATA 14. RESULTS The median age of the participants was 35 (25-42) years. Cardiometabolic risk factors among the participants were hypertension (66%), overweight/obesity (45%), abdominal obesity (46%), and elevated cholesterol (15%) and glucose levels (7%). The metabolic syndrome was found in 17% of the participants, with a high prevalence observed among participants aged 35-59 years (28%) and ≥ 60 years (40%). The metabolic syndrome was significantly associated with gender [males, adjusted odds ratio (AOR) = 0.4, 95% CI: 0.20-0.90] and age, 35-59 years (AOR = 5.07, 95% CI: 2.24-11.23) and ≥ 60 years (AOR = 6.57, 95% CI; 1.57-27.54). CONCLUSIONS Prevalent cardiometabolic risk factors in informal settlements indicate the need for routine screening for all the components of the metabolic syndrome at the primary healthcare level.
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Affiliation(s)
- Kebogile Mokwena
- Department of Public Health, School of Health Care Sciences, Sefako Makgatho Health Sciences University, Ga-Rankuwa, South Africa
| | - Perpetua Modjadji
- Department of Public Health, School of Health Care Sciences, Sefako Makgatho Health Sciences University, Ga-Rankuwa, South Africa.
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Elfaki FA, Mukhayer AIG, Moukhyer ME, Chandika RM, Kremers SPJ. Prevalence of Metabolic Syndrome among Early Adolescents in Khartoum State, Sudan. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph192214876. [PMID: 36429592 PMCID: PMC9690848 DOI: 10.3390/ijerph192214876] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 10/26/2022] [Accepted: 11/01/2022] [Indexed: 05/27/2023]
Abstract
BACKGROUND Metabolic syndrome (MetS) is rapidly increasing in prevalence with rising childhood obesity and sedentary lifestyles worldwide. The aim of this study was to estimate the prevalence of MetS and its components among Sudanese early adolescents in Khartoum State. METHODS A descriptive cross-sectional study was conducted at primary schools in Khartoum State. A questionnaire was administered to assess the sociodemographic characteristics of the participants. Anthropometric, blood pressure, and biochemical measurements were taken. RESULTS In total, 921 students, boys and girls aged 10-15 years old, participated in the study. The mean age of the participants was 12.59 ± 1.21 years. The overall prevalence rate of MetS was 2.3% using International Diabetes Federation (IDF) criteria. MetS was significantly more prevalent among boys than girls (3.4% vs. 1.5%). Obese adolescents had higher MetS prevalence than those who were overweight (14.9 vs. 2.8, p < 0.001). CONCLUSION Boys had a significantly higher prevalence of metabolic syndrome than girls. Early adolescents from Sudan who are obese had more risk factors for MetS than those who are normal weight or overweight. It is important to address the causes of increased risk for MetS early in life to prevent the development of the disease in adult life.
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Affiliation(s)
- Fatima A. Elfaki
- Department of Clinical Nutrition, Faculty of Applied Medical Sciences, Jazan University, Jazan P.O. Box 114, Saudi Arabia
- School of Nutrition and Translation Research in Metabolism, Maastricht University, 6211 LK Maastricht, The Netherlands
| | - Aziza I. G. Mukhayer
- Department of Health Education and Promotion, Maastricht University, 6211 LK Maastricht, The Netherlands
- School of Medicine, Ahfad University for Women, Omdurman P.O. Box 167, Sudan
| | - Mohamed E. Moukhyer
- Department of Emergency Medical Services, Faculty of Applied Medical Sciences, Jazan University, Jazan P.O. Box 114, Saudi Arabia
- Public Health Programs, School of Medicine, University of Limerick, V94 T9PX Limerick, Ireland
| | - Rama M. Chandika
- Department of Clinical Nutrition, Faculty of Applied Medical Sciences, Jazan University, Jazan P.O. Box 114, Saudi Arabia
| | - Stef P. J. Kremers
- School of Nutrition and Translation Research in Metabolism, Maastricht University, 6211 LK Maastricht, The Netherlands
- Department of Health Education and Promotion, Maastricht University, 6211 LK Maastricht, The Netherlands
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Ramesh S, Abraham RA, Sarna A, Sachdev HS, Porwal A, Khan N, Acharya R, Agrawal PK, Ashraf S, Ramakrishnan L. Prevalence of metabolic syndrome among adolescents in India: a population-based study. BMC Endocr Disord 2022; 22:258. [PMID: 36280821 PMCID: PMC9594972 DOI: 10.1186/s12902-022-01163-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 09/16/2022] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND In India, the prevalence of overweight among adolescents is on the rise, setting the stage for an increase in metabolic syndrome (MS). This paper presents the national prevalence of MS in adolescents in India. METHODS A nationally representative data of adolescents (10-19 years) from the Comprehensive National Nutrition Survey was used. MS was defined based on the NCEP-ATP III criteria for adolescents. Bivariate analysis was used to report socio-demographic differentials in prevalence and to assess interstate variability. Multivariate logistic regression model was constructed to measure the association between socio-demographic characteristics and prevalence of MS. Census data from 2011 was projected to 2017 to calculate burden. RESULTS The prevalence of MS was 5.2% among adolescents. 11.9%, 15.4%, 26.0%, 31.9% and 3.7% had central obesity, high blood pressure, hypertriglyceridemia, low HDL-cholesterol and high fasting glucose, respectively. The prevalence was higher among males (5.7% vs. 4.7%, adjusted odds ratio (AOR): 1.3, 95% confidence interval [CI]: 1.0, 1.6), those residing in urban areas (7.9% vs 4.2%, AOR: 1.4, 95% CI: 1.1, 1.8), and from wealthier households as compared to their counterparts (8.3% vs. 2.4%, AOR: 3.4, 95% CI: 2.1, 5.5). There was wide interstate variability in the prevalence of MS (0.5% - 16.5%). In 2017, 14.2 million adolescents had MS in India. CONCLUSIONS The prevalence of MS among adolescents in India is low and clustered in urban areas and richer households. Early prevention interventions promoting a healthy lifestyle, especially in high prevalence areas, are needed to keep MS from becoming a public health issue.
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Affiliation(s)
- Sowmya Ramesh
- Population Council, Zone 5A, Ground Floor India Habitat Centre, Lodi Road, New Delhi, Delhi, 110003, India.
| | - Ransi Ann Abraham
- Cardiac Biochemistry, All India Institute of Medical Sciences, Delhi, India
| | - Avina Sarna
- Population Council, Zone 5A, Ground Floor India Habitat Centre, Lodi Road, New Delhi, Delhi, 110003, India
| | | | - Akash Porwal
- Population Council, Zone 5A, Ground Floor India Habitat Centre, Lodi Road, New Delhi, Delhi, 110003, India
| | - Nizamuddin Khan
- Population Council, Zone 5A, Ground Floor India Habitat Centre, Lodi Road, New Delhi, Delhi, 110003, India
| | - Rajib Acharya
- Population Council, Zone 5A, Ground Floor India Habitat Centre, Lodi Road, New Delhi, Delhi, 110003, India
| | | | - Sana Ashraf
- Population Council, Zone 5A, Ground Floor India Habitat Centre, Lodi Road, New Delhi, Delhi, 110003, India
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Dolley D, Walter C, du Randt R, Pühse U, Bosma J, Aerts A, Adams L, Arnaiz P, Degen J, Gall S, Joubert N, Müller I, Nienaber M, Nqweniso F, Seelig H, Steinmann P, Utzinger J, Gerber M. Clustered cardiovascular disease risk among children aged 8–13 years from lower socioeconomic schools in Gqeberha, South Africa. BMJ Open Sport Exerc Med 2022; 8:e001336. [PMID: 35813129 PMCID: PMC9234795 DOI: 10.1136/bmjsem-2022-001336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/09/2022] [Indexed: 11/04/2022] Open
Abstract
ObjectivesTo determine the prevalence of individual cardiovascular disease (CVD) risk factors and clustered CVD risk among children attending schools in periurban areas of Gqeberha and to investigate the independent association between clustered CVD risk, moderate to vigorous physical activity (MVPA) and cardiorespiratory fitness (CRF).MethodsBaseline data were collected in a cross-sectional analysis of 975 children aged 8–13 years. We measured the height, weight, waist circumference, blood pressure, fasting glucose, full lipid panel, 20 m shuttle run performance and accelerometry. The prevalence of individual risk factors was determined, and a clustered risk score (CRS) was constructed using principal component analysis. Children with an elevated CRS of 1 SD above the average CRS were considered ‘at-risk’.ResultsWe found 424 children (43.3%) having at least one elevated CVD risk factor: 27.7% elevated triglycerides, 20.7% depressed high-density lipoprotein cholesterol and 15.9% elevated total cholesterol. An elevated clustered risk was identified in 17% (n=104) of the sample; girls exhibited a significantly higher CRS >1 SD than boys (p=0.036). The estimated odds of an elevated clustered risk are doubled every 2 mL/kg/min decrease in VO2max (95% CI 1.66 to 3.12) or every 49 min reduction in MVPA (95% CI 27 to 224).ConclusionA relatively high prevalence of elevated individual and clustered CVD risk was identified. Our results have also confirmed the independent inverse association of the clustered CVD risk with physical activity and CRF. These indicate that increased levels of CRF or MVPA may aid in the prevention and reduction of elevated clustered CVD risk.
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Affiliation(s)
- Danielle Dolley
- Department of Human Movement Science, Nelson Mandela University, Gqeberha, Eastern Cape, South Africa
| | - Cheryl Walter
- Department of Human Movement Science, Nelson Mandela University, Gqeberha, Eastern Cape, South Africa
| | - Rosa du Randt
- Department of Human Movement Science, Nelson Mandela University, Gqeberha, Eastern Cape, South Africa
| | - Uwe Pühse
- Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland
| | - Jacob Bosma
- Nelson Mandela University, Gqeberha, South Africa
| | - Ann Aerts
- Novartis Foundation, Basel, Switzerland
| | - Larissa Adams
- Department of Human Movement Science, Nelson Mandela University, Gqeberha, Eastern Cape, South Africa
| | - Patricia Arnaiz
- Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland
| | - Jan Degen
- Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland
| | - Stefanie Gall
- Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland
| | - Nandi Joubert
- University of Basel, Basel, Switzerland
- Swiss Tropical and Public Health Institute, Basel, Switzerland
| | - Ivan Müller
- Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland
| | - Madeleine Nienaber
- Department of Human Movement Science, Nelson Mandela University, Gqeberha, Eastern Cape, South Africa
| | - Felicitas Nqweniso
- Department of Human Movement Science, Nelson Mandela University, Gqeberha, Eastern Cape, South Africa
| | - Harald Seelig
- Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland
| | - Peter Steinmann
- Swiss Tropical and Public Health Institute, Basel, Switzerland
| | - Jürg Utzinger
- Swiss Tropical and Public Health Institute, Basel, Switzerland
| | - Markus Gerber
- Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland
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Engwa GA, Anye C, Nkeh-Chungag BN. Association between obesity and lung function in South African adolescents of African Ancestry. BMC Pediatr 2022; 22:109. [PMID: 35227223 PMCID: PMC8883698 DOI: 10.1186/s12887-022-03164-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 02/17/2022] [Indexed: 12/03/2022] Open
Abstract
Background There is a growing body of literature on the increasing prevalence of obesity in adolescents of Sub-Saharan African ancestry. However, limited data is available on the impact of obesity on pulmonary function. This study assessed the relationship between obesity and lung function in South African adolescents of African ancestry. Methods This was a cross-sectional study involving 10–14 year old adolescents recruited from middle schools of the Eastern Cape Province of South Africa. Anthropometric measurements were performed. Body mass index (BMI) was converted to percentiles for age and sex and used to classified obesity. Spirometry was performed to assess lung function. Chi-square test of association and binary regression analysis were used to assess the relationship between obesity and airway obstruction. Adjusted linear regression was used to determine the relationship between obesity and lung function parameters. Results A total of 540 adolescents were recruited for the study among which 77 (14.3%) were obese. Lung function parameters: forced vital capacity (FVC) and forced expiratory volume in 1 s (FEV1) were higher (p < 0.001) in obese than in non-obese adolescents while peak expiratory flow (PEF) % and FEV1/FVC ratio were lower (p < 0.05) in obese than non-obese adolescents. Obesity was associated (χ2 = 9.614; p < 0.01) with airway obstruction and obese adolescents were over 1.5 times more likely to have pulmonary obstruction (OR: 1.57; p < 0.05) than their non-obese counterparts. Anthropometric measures were positively associated (p < 0.05) with FVC, FEV1, PEF and/or FEV25-75 but negatively associated with FEV1/FVC ratio. Conclusions Obesity was associated with airway obstruction in South Africa adolescents of African ancestry.
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Affiliation(s)
- Godwill Azeh Engwa
- Department of Biological and Environmental Sciences, Faculty of Natural Sciences, Walter Sisulu University PBX1, Mthatha, 5117, South Africa
| | - Chungag Anye
- Dayenuel Consulting, Postnet Suites 092, Mthatha, 5099, South Africa
| | - Benedicta Ngwenchi Nkeh-Chungag
- Department of Biological and Environmental Sciences, Faculty of Natural Sciences, Walter Sisulu University PBX1, Mthatha, 5117, South Africa.
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Metabolic Syndrome and Its Components among Taxi Drivers in the City of Tshwane, South Africa. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12031767] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The occupation of taxi driving predisposes drivers to health risks, including obesity, cardiovascular and metabolic disorders. Although individual components of metabolic syndrome (MetS) are documented, data is scarce on concurrent metabolic disturbances among commercial drivers. The prevalence of MetS and its components were determined in a cross-sectional study among taxi drivers (n = 362) in the City of Tshwane, South Africa. Sociodemographic, occupational, and lifestyle factors were assessed using a structured questionnaire. Anthropometry, blood pressure, and glucose were measured. MetS was defined based on BMI strata, hypertension, and glucose levels. Data was analyzed using SPSS. The mean age of taxi drivers was 42 ± 10.9 years. Overall prevalence of MetS was 17.1%, with higher prevalence observed among older taxi drivers (24.2%) and those with longer experience in the industry (22.9%). Individual components of MetS were obesity (36%), hypertension (36%) and diabetes (46%), while smoking (30%), alcohol use (59%), and physical inactivity (71%) were observed. MetS was associated with duration in the taxi industry, and family history of diabetes among taxi drivers. The presence of MetS and its components among taxi drivers calls for early identification of cardiometabolic risks in the taxi industry and efforts towards achieving a healthier workforce.
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Crouch SH, Soepnel LM, Kolkenbeck-Ruh A, Maposa I, Naidoo S, Davies J, Norris SA, Ware LJ. Paediatric Hypertension in Africa: A Systematic Review and Meta-Analysis. EClinicalMedicine 2022; 43:101229. [PMID: 34917909 PMCID: PMC8665406 DOI: 10.1016/j.eclinm.2021.101229] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 11/16/2021] [Accepted: 11/22/2021] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND The burden of cardiovascular disease (CVD) and hypertension is rapidly increasing in low- and middle-income countries. This is evident not only in adults, but also in children. Recent estimates of prevalence in children are lacking, particularly in Africa. As such, we conducted a systematic review and meta-analysis to provide updated estimates of paediatric hypertension in Africa. METHODS We searched PubMed and EBSCO to identify articles published from January 2017 to November 2020. Studies were assessed for quality. We combined results for meta-analyses using a random effects model (Freeman-Tukey arcsine transformation). Heterogeneity was quantified using the I2 statistic. FINDINGS In the narrative synthesis of 53 studies, publication bias was low for 28, moderate for 24, and high for one study. Hypertension prevalence ranged substantially (0·2%-38·9%). Meta-analysis included 41 studies resulting in data on 52918 participants aged 3 to 19 years from ten countries. The pooled prevalence for hypertension (systolic/diastolic BP≥95th percentile) was 7·45% (95%CI 5·30-9·92, I2=98.96%), elevated blood pressure (BP, systolic/diastolic BP≥90th percentile and <95th percentile) 11·38% (95%CI 7·94-15·33, I2=98.97%) and combined hypertension/elevated BP 21·74% (95%CI 15·5-28·69, I2=99.48%). Participants categorized as overweight/with obesity had a higher prevalence of hypertension (18·5% [95%CI 10·2-28·5]) than those categorized as underweight/normal (1·0% [95%CI 0·1-2·6], 4·8% [95%CI 2·9-7·1], p<0·001). There were significant differences in hypertension prevalence when comparing BP measurement methods and classification guidelines. INTERPRETATION Compared to a previous systematic review conducted in 2017, this study suggests a continued increase in prevalence of paediatric hypertension in Africa, and highlights the potential role of increasing overweight/obesity. FUNDING This research was funded in part by the Wellcome Trust [Grant number:214082/Z/18/Z]. LJW and SAN are supported by the DSI-NRF Centre of Human Development at the University of the Witwatersrand.
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Affiliation(s)
- Simone H. Crouch
- SAMRC/Wits Developmental Pathways for Health Research Unit, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Larske M. Soepnel
- SAMRC/Wits Developmental Pathways for Health Research Unit, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
- Julius Global Health, Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
- Correspondence and reprint to: Dr. Larske M. Soepnel. Julius Global Health, Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht University, Huispost nr. STR 6.131 P.O. Box 85500 3508 GA, Utrecht, The Netherlands
| | - Andrea Kolkenbeck-Ruh
- SAMRC/Wits Developmental Pathways for Health Research Unit, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Innocent Maposa
- Division of Epidemiology and Biostatistics, School of Public Health, Faculty of Health Sciences, University of Witwatersrand, Johannesburg, South Africa School of Public Health
| | - Sanushka Naidoo
- SAMRC/Wits Developmental Pathways for Health Research Unit, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Justine Davies
- SAMRC/Wits Developmental Pathways for Health Research Unit, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
- Institute of Applied Health Research, University of Birmingham, Birmingham, United Kingdom
| | - Shane A. Norris
- SAMRC/Wits Developmental Pathways for Health Research Unit, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
- School of Health and Human Development, University of Southampton, Southampton, United Kingdom
| | - Lisa J. Ware
- SAMRC/Wits Developmental Pathways for Health Research Unit, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
- DSI-NRF Centre of Excellence in Human Development, University of the Witwatersrand, Johannesburg, South Africa
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Engwa GA, Schmid-Zalaudek K, Anye C, Letswalo BP, Anye PC, Mungamba MM, Sewani-Rusike CR, Goswami N, Nkeh-Chungag BN. Assessment of Anthropometric Indices for Optimal Cut-Offs for Obesity Screening in a South African Adolescent Population. BIOLOGY 2021; 10:biology10111118. [PMID: 34827111 PMCID: PMC8614919 DOI: 10.3390/biology10111118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 10/05/2021] [Accepted: 10/15/2021] [Indexed: 11/29/2022]
Abstract
Simple Summary The diagnosis of obesity in sub-Saharan African children relies on cut-off values for body mass index percentile (pBMI) and waist-to-height ratio (WtHR) established in western populations. Hence, this study assessed anthropometric indices to determine optimal cut-off values for obesity screening in the South African adolescent population. Findings from this study showed that the cut-off value for pBMI was p85.2th, which improved the sensitivity of the test by approximately 30% compared to the CDC recommended BMI percentile of p95.0th. Moreover, the optimal cut-off for WHtR was 0.481, which was close to the recommended cut-off value of 0.5. This study reveals a lower pBMI cut-off value, different from the CDC recommended cut-off, for screening obesity in a South African adolescent population and suggests that the optimal pBMI cut-off for obesity screening may be ethnic-specific. Abstract The assessment of obesity in sub-Saharan Africa relies on cut-offs established from western populations. This study assessed anthropometric indices to determine optimal cut-off values for obesity screening in the South African adolescent population. A cross-sectional study involving 1144 (796 females and 348 males) adolescents aged 11–17 years from the Eastern Cape Province of South African was conducted. Anthropometric parameters were measured. Receiver operating characteristic (ROC) analysis was performed to assess the sensitivity and specificity of obesity screening tools and establish cut-offs. The optimal cut-offs for obesity in the cohort using waist-to-height ratio (WHtR) as reference were: neck circumference (NC) = 30.6 cm, mid-upper arm circumference (MUAC) = 25.9 cm, waist circumference (WC) = 75.1 cm, hip circumference (HC) = 92.15 cm and body mass index percentile (pBMI) = p85.2th. The new pBMI cut-off value at p85.2th improved the sensitivity of the test by approximately 30% compared to the CDC recommended BMI percentile (pBMIr) of p95.0th. When pBMI was used as reference, the optimal cut-offs in the cohort were: WHtR = 0.481, NC = 30.95 cm, MUAC = 27.95 cm, WC = 76.1 cm and HC = 95.75 cm. The WHtR optimal cut-off of 0.481 was close to the recommended cut-off value of 0.5. The predicted prevalence of obesity obtained using cut-offs from ROC analysis was higher than those from recommended references. All cut-off values for the various anthropometric measures generally increased with age for all percentile ranges. This study reveals a lower pBMI cut-off value, different from the CDC recommended cut-off, for screening obesity in a South African adolescent population. The study has established that the optimal pBMI cut-off for obesity screening may be ethnic-specific.
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Affiliation(s)
- Godwill Azeh Engwa
- Department of Biological and Environmental Sciences, Faculty of Natural Sciences, Walter Sisulu University, Mthatha 5117, South Africa;
| | - Karin Schmid-Zalaudek
- Physiology Division, Otto Loewi Research Center for Vascular Biology, Immunology and Inflammation, Medical University of Graz, Neue Stiftingtalstrasse 6, D-5 A 8036 Graz, Austria;
| | - Chungag Anye
- Dayenuel Consulting, Postnet Suites 092, Mthatha 5099, South Africa;
| | - Boitumelo P. Letswalo
- Department of Human Biology, Faculty of Natural Sciences, Walter Sisulu University, Mthatha 5177, South Africa; (B.P.L.); (M.M.M.); (C.R.S.-R.)
| | - Paul Chungag Anye
- MBCHB Programme, Faculty of Health Sciences, Walter Sisulu University PBX1, Mthatha 5117, South Africa;
| | - Muhau Muhulo Mungamba
- Department of Human Biology, Faculty of Natural Sciences, Walter Sisulu University, Mthatha 5177, South Africa; (B.P.L.); (M.M.M.); (C.R.S.-R.)
| | - Constance Rufaro Sewani-Rusike
- Department of Human Biology, Faculty of Natural Sciences, Walter Sisulu University, Mthatha 5177, South Africa; (B.P.L.); (M.M.M.); (C.R.S.-R.)
| | - Nandu Goswami
- Physiology Division, Otto Loewi Research Center for Vascular Biology, Immunology and Inflammation, Medical University of Graz, Neue Stiftingtalstrasse 6, D-5 A 8036 Graz, Austria;
- Correspondence: (N.G.); (B.N.N.-C.)
| | - Benedicta Ngwenchi Nkeh-Chungag
- Department of Biological and Environmental Sciences, Faculty of Natural Sciences, Walter Sisulu University, Mthatha 5117, South Africa;
- Correspondence: (N.G.); (B.N.N.-C.)
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Nkeh-Chungag BN, Engwa GA, Businge C, Mdondolo M, Pajaro Medina M, Goswami N. Assessment of the impact of HIV infection and anti-retroviral treatment on the cardiometabolic health of pregnant mothers and their offspring (ARTMOMSBABES). BMC Cardiovasc Disord 2021; 21:322. [PMID: 34193034 PMCID: PMC8247111 DOI: 10.1186/s12872-021-02130-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 06/21/2021] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND The risk of cardiovascular diseases (CVDs) is becoming more prevalent in pregnant women though not much data is available for pregnant women with human immunodeficiency virus (HIV). Foetoplacental vascular endothelial dysfunction is thought to be at the origin of chronic diseases such as diabetes and obesity later on in life. Because HIV and anti-retroviral treatment (ARTs) are associated with endothelial dysfunction, children exposed in utero to these conditions may be at greater risk of developing CVDs. Despite the high prevalence of HIV in pregnant South African women, little is known about the effects of ART on the cardiovascular health of the mother and offspring. Hence, the proposed study intends to investigate how HIV/ARTs may affect the cardiovascular health of the mother and offspring at different time points during the pregnancy and up to 2 years after birth. METHODS A longitudinal case-control study in HIV positive pregnant women on ART and HIV negative pregnant women will be conducted. All pregnant women will be assessed for cardio-metabolic risk factors and markers (lipids, anthropometric and glycaemic indies, oxidative stress), hemodynamic status (blood pressure parameters) and vascular function (arterial compliance, retinal microvasculature, uterine artery mean pulsatility index). Child health will be monitored in utero and postnatally via routine foetal health screening, placental integrity, anthropometry, blood pressure parameters, markers of oxidative stress and endothelial function in cord blood and cardiovascular epigenetic markers in urine. DISCUSSION There is a paucity of studies in South Africa and sub-Sahara Africa as a whole that utilised a longitudinal study model to assess the effects of ARTs on vascular endothelial changes in pregnant women living with HIV and the cardiometabolic health of their offspring. This study will therefore help to monitor changes in cardiometabolic risk during pregnancy and in children exposed in utero to HIV-infection and ART use. Findings from this study will provide useful information for developing guidelines on the use of ARTs in pregnancy and management of cardiometabolic health of the offspring of HIV positive mothers.
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Affiliation(s)
- Benedicta Ngwenchi Nkeh-Chungag
- Department of Biological and Environmental Sciences, Faculty of Natural Sciences, Walter Sisulu University PBX1, Mthatha, 5117 South Africa
| | - Godwill Azeh Engwa
- Department of Biological and Environmental Sciences, Faculty of Natural Sciences, Walter Sisulu University PBX1, Mthatha, 5117 South Africa
| | - Charles Businge
- Department of Obstetrics and Gynaecology, Walter Sisulu University, Nelson Mandela Academic Hospital, Mthatha, 5117 South Africa
| | - Mziwohlanga Mdondolo
- Department of Obstetrics and Gynaecology, Mthatha Regional Hospital, Private Bag x 5014, Mthatha, 5099 South Africa
| | - Magdevy Pajaro Medina
- Department of Peadiatrics, Mthatha Regional Hospital, Private Bag x 5014, Mthatha, 5099 South Africa
| | - Nandu Goswami
- Physiology Division, Otto Loewi Research Center for Vascular Biology, Immunology and Inflammation, Medical University of Graz, Neue Stiftingtalstrasse 6, 8036 Graz, Austria
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Chungag A, Engwa GA, Sewani-Rusike CR, Nkeh-Chungag BN. Effect of Seasonal Variation on the Relationship of Indoor Air Particulate Matter with Measures of Obesity and Blood Pressure in Children. J Health Pollut 2021; 11:210610. [PMID: 34267997 PMCID: PMC8276733 DOI: 10.5696/2156-9614-11.30.210610] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 03/15/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Particulate matter (PM) air pollution is an important environmental health risk factor. Although some studies have shown PM to be associated with obesity and hypertension, very few studies have assessed the association of indoor PM specifically with obesity and blood pressure measures in children with respect to seasonal variation. OBJECTIVES The present study investigated the relationship of PM with obesity and blood pressure variables in children across the winter and summer seasons. METHODS A comparative descriptive approach was adopted and school children from 10-14 years of age from selected rural and urban localities of the Eastern Cape Province of South Africa were assessed in winter and summer. Anthropometric measurements were taken, including height, weight, waist circumference, body mass index (BMI), and total fat mass (TFM), while blood pressure variables including systolic blood pressure (SBP), diastolic blood pressure (DBP) and heart rate (HR) were measured. Indoor air PM concentrations were measured in the classrooms in the presence of children. RESULTS The prevalence of obesity and hypertension in children were 13.4% and 5.1% in winter and 12.9% and 1.0% in summer, respectively. High blood pressure was more prevalent in children in rural areas, while the prevalence of obesity in children was higher in urban areas. Particulate matter was significantly (p<0.05) higher in rural areas compared to urban areas. Obese children in summer had a greater than 3-fold association (AOR: 3.681, p=0.005) with 4th interquartile range (IQR) of PM5 and a greater than 3- and 4-fold association (AOR: 3.08; 4.407; p<0.05) with 2nd and 4th IQR of PM10, respectively, than their overweight, normal weight or underweight counterparts. High blood pressure was not associated (p< 0.05) with PM. CONCLUSIONS High concentrations of indoor PM were positively associated with obesity in children in summer, particularly among rural children. This association could be accounted for by location and seasonal differences. PARTICIPANT CONSENT Obtained. ETHICS APPROVAL Ethics approval was obtained from the Health Sciences Ethics Committee of Walter Sisulu University, South Africa (Ref No: CHI011SCHU01). COMPETING INTERESTS The authors declare no competing financial interests.
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Affiliation(s)
- Anye Chungag
- Department of Geography and Environmental Sciences, Faculty of Science and Agriculture, University of Fort Hare, Alice, South Africa
| | - Godwill Azeh Engwa
- Department of Biological and Environmental Sciences, Faculty of Natural Sciences, Walter Sisulu University, Mthatha, South Africa
| | | | - Benedicta Ngwenchi Nkeh-Chungag
- Department of Biological and Environmental Sciences, Faculty of Natural Sciences, Walter Sisulu University, Mthatha, South Africa
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Debeila S, Modjadji P, Madiba S. High prevalence of overall overweight/obesity and abdominal obesity amongst adolescents: An emerging nutritional problem in rural high schools in Limpopo Province, South Africa. Afr J Prim Health Care Fam Med 2021; 13:e1-e9. [PMID: 34082550 PMCID: PMC8182488 DOI: 10.4102/phcfm.v13i1.2596] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 02/02/2021] [Accepted: 02/02/2021] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND As the gap in nutritional profiles between urban and rural rapidly reduces because of nutrition transition, rural adolescents are likely to engage in urban lifestyle behaviours. AIM The study determined the prevalence of overweight/obesity amongst adolescents in rural high schools and the association with selected factors. SETTING Fetakgomo Municipality in rural Limpopo Province, South Africa. METHODS A cross-sectional study was conducted amongst 378 adolescents selected through multistage sampling from high schools. Data collected were socio-demography, nutritional knowledge, dietary practices and anthropometry. The International Obesity Task Force age and sex-specific body mass index (BMI) cut-off values were used to determine overweight/obesity, whilst adult BMI cut-off values were used for those ≥ 18 years. Waist-to-height ratio (WHtR) greater than 0.5 indicated abdominal obesity, as well as waist circumference (WC) and waist-to-hip ratio (WHR) above the cut-off values. RESULTS The proportion of overweight/obesity amongst adolescents was 35%, whilst 25% had abdominal obesity by WHR and 21% by WHtR. Multivariate logistic regression showed that being a girl (AOR = 2.9, 95% CI: 1.74-4.85), older adolescent (AOR = 3.1, 95% CI: 1.57-6.29) and living in a household with employed adults (AOR = 2.3, 95% CI: 1.19-4.51) were associated with increased odds of being overweight/obese. Eating breakfast was associated with reduced odds of being overweight/obese (AOR = 0.6, 95% CI: 0.34-0.97). CONCLUSION Overweight/obesity and abdominal obesity amongst adolescents were more prevalent than underweight. The Integrated School Health Programme should have clear guidelines on food items served and sold at schools.
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Affiliation(s)
- Sego Debeila
- Department of Public Health, School of Health Care Sciences, Sefako Makgatho Health Sciences University, Ga-Rankuwa.
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Siwarom S, Aekplakorn W, Pirojsakul K, Paksi W, Kessomboon P, Neelapaichit N, Chariyalertsak S, Assanangkornchai S, Taneepanichskul S. Metabolic syndrome in Thai adolescents and associated factors: the Thai National Health Examination Survey V (NHES V). BMC Public Health 2021; 21:678. [PMID: 33827482 PMCID: PMC8028250 DOI: 10.1186/s12889-021-10728-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 03/29/2021] [Indexed: 01/19/2023] Open
Abstract
Background Presence of metabolic syndrome (MetS) in early life may influence cardiovascular outcome later in adulthood. There is limited data regarding MetS among Thai adolescents. This study aimed to estimate the prevalence of MetS and related factors in Thai adolescents. Methods Data on MetS components of 1934 Thai adolescents aged 10–16 years were obtained from the 5th National Health Examination Survey. Age at first screen time exposure, duration of screen time, frequency of food intake and physical activities were collected from interviews. MetS was defined according to 3 definitions: International Diabetes Federation (IDF), Cook’s, and de Ferranti’s. Results The prevalence of MetS was 4.1% by IDF, 8.0% by Cook’s, and 16.8% by de Ferranti’s definition. The overall prevalence was higher in male (19.0%) than female adolescents (15.3%). The most common MetS components composition among Thai adolescents was high waist circumference with high serum triglyceride and low HDL-cholesterol (40.0% for IDF, 22.6% for Cook’s and 43.5% for de Ferranti’s definition). Exposure to screen media during the first 2 years of life had a 1.3- fold increased odds of MetS by 1 out of 3 definitions (OR 1.30, 95% CI. 1.01–1.68). Duration of physical activity associated with decreased odds of MetS by Cook’s definition (OR 0.96, 95% CI. 0.92–0.99). Conclusions The prevalence of MetS among Thai adolescents was higher than previously reported by other studies. Screen media exposure during the first 2 years of life should be discouraged and measures to promote physical activity among children and adolescents should be strengthen. Supplementary Information The online version contains supplementary material available at 10.1186/s12889-021-10728-6.
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Affiliation(s)
- Sirinapa Siwarom
- Department of Pediatrics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Wichai Aekplakorn
- Department of Community Medicine, Faculty of Medicine Ramathibodi Hospital, Mahidol University, 270 Rama VI Road, Thung Phayathai, Ratchathewi, Bangkok, 10400, Thailand.
| | - Kwanchai Pirojsakul
- Department of Pediatrics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Witchuri Paksi
- Department of Pediatrics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Pattapong Kessomboon
- Department of Community Medicine, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Nareemarn Neelapaichit
- Ramathibodi School of Nursing, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
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Letswalo BP, Schmid-Zalaudek K, Brix B, Matjuda EN, Klosz F, Obernhumer N, Gaisl M, Engwa GA, Sewani-Rusike C, Fredriksen PM, Nkeh-Chungag B, Goswami N. Cardiometabolic risk factors and early indicators of vascular dysfunction: a cross-sectional cohort study in South African adolescents. BMJ Open 2021; 11:e042955. [PMID: 33737426 PMCID: PMC7978086 DOI: 10.1136/bmjopen-2020-042955] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
OBJECTIVES Prevalence of child and adolescents' overweight and obesity in low- and middle-income countries has increased dramatically. Simultaneously, the incidence of pre-hypertension/hypertension is also increasing in children, which, in turn, predisposes these children to the risk of cardiovascular disease (CVD) in later life. The present study assessed cardiometabolic risk factors and early indicators of vascular dysfunction in adolescents from a low socio-economic rural area in South Africa. DESIGN Cross-sectional cohort study. SETTING The study was conducted in public schools in Mthatha, OR Tambo district municipality, Eastern Cape Province, South Africa. PARTICIPANTS A total of 244 adolescents (188 females) of African ancestry aged 13-16 years were enrolled. PRIMARY AND SECONDARY OUTCOME MEASURES Anthropometric and haemodynamic measures and pulse wave velocity (PWV) were related to overweight/obesity and hypertension. Blood markers of cardiometabolic syndrome were assessed as well as vascular function (via PWV). RESULTS One-third (33.0%) of the adolescents exceeded the age and sex-specific body mass index percentiles for overweight (≥85th) or obesity (>95th) with a prevalence of 61.1% pre-hypertensives in this group. Overweight/obesity and hypertension were associated with higher triglycerides (lean:overweight: 0.79<1.01 mmol/L; normotensive:hypertensive: 0.82<0.89 mmol/L). Fasting glucose was higher in hypertensive as compared to normotensive adolescents (4.85>4.69 mmol/L, p<0.05). PWV was elevated in 25.9% of the children and significantly correlated with asymmetric dimethylarginine and systolic blood pressure (p<0.001). CONCLUSION Overweight/obesity and hypertension show a high prevalence in rural South African youth. Almost half of the studied adolescents are at risk for developing CVD. The high association between cardiometabolic risk factors and PWV further suggests that hypertension in adolescents may promote the progression of CVD in adulthood. Early detection of those at risk and the implementation of preventive strategies in underprivileged young people is urgently needed to stop the progression of vascular damage and manifestation of CVD in rural African children.
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Affiliation(s)
- Boitumelo Prescilla Letswalo
- Department of Human Biology, Faculty of Health Sciences, Walter Sisulu University, Mthatha, Eastern Cape, South Africa
| | - Karin Schmid-Zalaudek
- Physiology Division, Otto Loewi Research Center for Vascular Biology, Immunology and Inflammation, Medical University of Graz, Graz, Austria
| | - Bianca Brix
- Physiology Division, Otto Loewi Research Center for Vascular Biology, Immunology and Inflammation, Medical University of Graz, Graz, Austria
| | - Edna Ngoakoana Matjuda
- Department of Biological and Environmental Sciences, Faculty of Natural Sciences, Walter Sisulu University, Mthatha, Eastern Cape, South Africa
| | - Fabian Klosz
- Physiology Division, Otto Loewi Research Center for Vascular Biology, Immunology and Inflammation, Medical University of Graz, Graz, Austria
| | - Natalie Obernhumer
- Physiology Division, Otto Loewi Research Center for Vascular Biology, Immunology and Inflammation, Medical University of Graz, Graz, Austria
| | - Michael Gaisl
- Physiology Division, Otto Loewi Research Center for Vascular Biology, Immunology and Inflammation, Medical University of Graz, Graz, Austria
| | - Godwill Azeh Engwa
- Department of Human Biology, Faculty of Health Sciences, Walter Sisulu University, Mthatha, Eastern Cape, South Africa
| | - Constance Sewani-Rusike
- Department of Human Biology, Faculty of Health Sciences, Walter Sisulu University, Mthatha, Eastern Cape, South Africa
| | | | - Benedicta Nkeh-Chungag
- Department of Human Biology, Faculty of Health Sciences, Walter Sisulu University, Mthatha, Eastern Cape, South Africa
- Department of Biological and Environmental Sciences, Faculty of Natural Sciences, Walter Sisulu University, Mthatha, Eastern Cape, South Africa
| | - Nandu Goswami
- Physiology Division, Otto Loewi Research Center for Vascular Biology, Immunology and Inflammation, Medical University of Graz, Graz, Austria
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Yuan Y, Mu JJ, Chu C, Zheng WL, Wang Y, Hu JW, Ma Q, Wang KK, Yan Y, Liao YY, Chen C. Predictive Role of Child-To-Adult Blood Pressure Trajectories for Incident Metabolic Syndrome: 30-Year Hanzhong Adolescent Hypertension Study. Endocr Pract 2020; 27:433-442. [PMID: 33840450 DOI: 10.1016/j.eprac.2020.09.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 08/06/2020] [Accepted: 09/04/2020] [Indexed: 11/17/2022]
Abstract
OBJECTIVE The relationship between child-to-adult blood pressure (BP) trajectories and metabolic syndrome (MetS) is unknown. We aimed to determine the predictive role of BP trajectories for incident MetS and its components. METHODS The prospective Hanzhong Adolescent Hypertension study began in 1987 and included 2692 participants free of MetS at baseline with at least 3 BP measurements available from 1987 to 2017. RESULTS The systolic BP (SBP) trajectory patterns were grouped as normal (class 1, 18.7%), high normal (class 2, 60.3%), prehypertensive (class 3, 13.1%), stage 1 hypertensive (class 4, 5.7%), and stage 2 hypertensive (class 5, 2.2%). Compared with those in the normal group, individuals in classes 2 to 5 had significantly higher risks of MetS (all Ps < .05), and those with hypertension had more than an 8-fold higher risk of MetS (both P < .05). The fully adjusted risk ratios (RRs) of central obesity increased significantly in a stepwise manner as the SBP trajectory group increased from class 1 to class 5 (P < .05). Compared with those with a normal SBP trajectory, participants in the prehypertensive group and stage 1 and stage 2 hypertensive groups had significantly higher RRs for high-risk triglycerides after full adjustment (RR = 1.89 [1.22-2.94]; RR = 3.61 [2.16-6.02]; and RR = 3.22 [1.52-6.84], respectively). CONCLUSION Our study suggests that BP trajectories are predictive of incident MetS outcomes. Early detection of hypertension or modest elevations in BP is crucial. The stage of hypertension based on SBP level showed a greater association with central obesity.
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Affiliation(s)
- Yue Yuan
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China; Key Laboratory of Molecular Cardiology of Shaanxi Province, Xi'an, China
| | - Jian-Jun Mu
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China; Key Laboratory of Molecular Cardiology of Shaanxi Province, Xi'an, China.
| | - Chao Chu
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China; Key Laboratory of Molecular Cardiology of Shaanxi Province, Xi'an, China
| | - Wen-Ling Zheng
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China; Key Laboratory of Molecular Cardiology of Shaanxi Province, Xi'an, China
| | - Yang Wang
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China; Key Laboratory of Molecular Cardiology of Shaanxi Province, Xi'an, China
| | - Jia-Wen Hu
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China; Key Laboratory of Molecular Cardiology of Shaanxi Province, Xi'an, China
| | - Qiong Ma
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China; Key Laboratory of Molecular Cardiology of Shaanxi Province, Xi'an, China
| | - Ke-Ke Wang
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China; Key Laboratory of Molecular Cardiology of Shaanxi Province, Xi'an, China
| | - Yu Yan
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China; Key Laboratory of Molecular Cardiology of Shaanxi Province, Xi'an, China
| | - Yue-Yuan Liao
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China; Key Laboratory of Molecular Cardiology of Shaanxi Province, Xi'an, China
| | - Chen Chen
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China; Key Laboratory of Molecular Cardiology of Shaanxi Province, Xi'an, China
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The prevalence of pediatric metabolic syndrome-a critical look on the discrepancies between definitions and its clinical importance. Int J Obes (Lond) 2020; 45:12-24. [PMID: 33208861 PMCID: PMC7752760 DOI: 10.1038/s41366-020-00713-1] [Citation(s) in RCA: 88] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 10/16/2020] [Accepted: 11/02/2020] [Indexed: 02/06/2023]
Abstract
Introduction The Metabolic Syndrome (MetS) describes the clustering of cardio-metabolic risk factors—including abdominal obesity, insulin resistance, elevated blood pressure, high levels of triglycerides, and low levels of high-density lipoproteins—that increase the risk for developing cardiovascular diseases and type 2 diabetes mellitus. However, a generally accepted definition of MetS in pediatric patients is still lacking. Objectives The aim was to summarize current prevalence data of childhood MetS as well as to discuss the continuing disagreement between different pediatric definitions and the clinical importance of such diagnosis. Methodology A systematic literature search on the prevalence of pediatric MetS was conducted. Articles that were published during the past 5 years (2014–2019), using at least one of four predetermined classifications (International Diabetes Federation, Cook et al., Ford et al., and de Ferranti et al.), were included. Results The search resulted in 1167 articles, of which 31 publications met all inclusion criteria. Discussion The prevalence of MetS ranged between 0.3 and 26.4%, whereby the rising number of children and adolescents with MetS partly depended on the definition used. The IDF definition generally provided the lowest prevalences (0.3–9.5%), whereas the classification of de Ferranti et al. yielded the highest (4.0–26.4%). In order to develop a more valid definition, further research on long-term consequences of childhood risk factors such as abdominal obesity, insulin resistance, hypertension, and dyslipidemia is needed. There is also a temptation to suggest one valid, globally accepted definition of metabolic syndrome for pediatric populations but we believe that it is more appropriate to suggest definitions of MetS that are specific to males vs. females, as well as being specific to race/ethnicity or geographic region. Finally, while this notion of definitions of MetS specific to certain subgroups is important, it still needs to be tested in future research.
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Choukem SP, Tochie JN, Sibetcheu AT, Nansseu JR, Hamilton-Shield JP. Overweight/obesity and associated cardiovascular risk factors in sub-Saharan African children and adolescents: a scoping review. INTERNATIONAL JOURNAL OF PEDIATRIC ENDOCRINOLOGY 2020; 2020:6. [PMID: 32211050 PMCID: PMC7092532 DOI: 10.1186/s13633-020-0076-7] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Accepted: 02/13/2020] [Indexed: 01/19/2023]
Abstract
INTRODUCTION Recently, childhood and adolescence overweight/obesity has increased disproportionately in developing countries, with estimates predicting a parallel increase in future cardiovascular disease (CVD) burden identifiable in childhood and adolescence. Identifying cardiovascular risk factors (CVRF) associated with childhood and adolescence overweight/obesity is pivotal in tailoring preventive interventions for CVD. Whilst this has been examined extensively in high-income countries, there is scant consistent or representative data from sub-Saharan Africa (SSA). OBJECTIVE This scoping review synthesises contemporary studies on CVRF associated with overweight and obesity in SSA children and adolescents to provide evidence on the current burden of overweight/obesity and CVD in this population. METHODS We searched MEDLINE and Google Scholar up to July 31, 2019 for observational and experimental studies and systematic reviews addressing childhood and adolescence overweight/obesity and CVRF in SSA without language restriction. Four investigators working in four pairs, independently selected and extracted the relevant data. The methodological quality of all included studies was assessed. RESULTS We included 88 studies with a total of 86,637children and adolescents from 20 SSA countries. The risk of bias was low in 62 (70.5%), moderate 18 (20.5%), and high in eight (9%) studies. Overweight/obesity in SSA children and adolescents is rising at an alarming rate. Its main associations include physical inactivity, unhealthy diets, high socio-economic status, gender and high maternal body mass index. Identified CVRF in overweight/obese SSA children and adolescents are mainly metabolic syndrome, hypertension, dyslipidaemia, diabetes and glucose intolerance. There is a dearth of guidelines or consensus on the management of either childhood overweight/obesity or CVRF in overweight/obese SSA children and adolescents. CONCLUSION The current findings suggest an urgent need to review current health policies in SSA countries. Health education and transforming the current obesogenic environment of the SSA child and adolescent into one which promotes physical activity and healthy dietary habits is required.
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Affiliation(s)
- Simeon-Pierre Choukem
- Department of Clinical Sciences, Faculty of Medicine and Pharmaceutical Sciences, University of Dschang, Dschang, Cameroon
- Health and Human Development (2HD) Research Network, Douala, Cameroon
- Diabetes and Endocrine Unit, Department of Internal Medicine, Douala General Hospital, Douala, Cameroon
| | - Joel Noutakdie Tochie
- Health and Human Development (2HD) Research Network, Douala, Cameroon
- Department of Anesthesiology and Critical Care Medicine, Faculty of Medicine and Biomedical Sciences, University of Yaoundé I, Yaoundé, Cameroon
| | - Aurelie T. Sibetcheu
- Health and Human Development (2HD) Research Network, Douala, Cameroon
- Department of Pediatrics, Faculty of Medicine and Biomedical Sciences, University of Yaoundé I, Yaoundé, Cameroon
| | - Jobert Richie Nansseu
- Health and Human Development (2HD) Research Network, Douala, Cameroon
- Disease, Epidemics and Pandemics Control, Ministry of Public Health, Yaoundé, Cameroon
| | - Julian P. Hamilton-Shield
- Bristol Biomedical Research Centre (Nutrition Theme), University of Bristol and University Hospitals Bristol NHS Foundation Trust, Bristol, UK
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19
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Bitew ZW, Alemu A, Ayele EG, Tenaw Z, Alebel A, Worku T. Metabolic syndrome among children and adolescents in low and middle income countries: a systematic review and meta-analysis. Diabetol Metab Syndr 2020; 12:93. [PMID: 33117455 PMCID: PMC7590497 DOI: 10.1186/s13098-020-00601-8] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 10/19/2020] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Metabolic syndrome (MetS) is a clustering of cardiovascular risk factors, which is rising in the low and middle income countries (LMICs). There are various studies with inconsistent findings that are inconclusive for policy makers and program planners. Thus, this systematic review and meta-analysis aimed at estimating the pooled prevalence of MetS and its components in LMICs. METHODS Electronic searches were conducted in international databases including PubMed, Web of Science, EMBASE (Elsevier), Scopus, CINAHL (EBSCOhost), Science direct (Elsevier), Food Science and Technology Abstracts (FSTA), Global Health and Medline, and other sources (World Cat, Google Scholar, and Google). The pooled estimates were computed in the random effect model. The pooled prevalence was computed using the three diagnostic methods (IDF, ATP III and de Ferranti). Publication bias was verified using funnel plot and Egger's regression test. Subgroup and sensitivity analysis were performed to identify the possible sources of heterogeneity among the included studies. RESULT In this study, 142,142 children and adolescents from 76 eligible articles were included to compute the pooled prevalence of MetS and its components in LMCIs. MeTs among overweight and obese population was computed from 20 articles with the pooled prevalence of 24.09%, 36.5%, and 56.32% in IDF, ATP III and de Ferranti criteria, respectively. Similarly, a total of 56 articles were eligible to compute the pooled prevalence of MetS in the general population of children and adolescents. Hence, Mets was found in 3.98% (IDF), 6.71% (ATP III) and 8.91% (de Ferranti) of study subjects. Regarding the components of MetS, abdominal obesity was the major component in overweight and obese population and low HDL-C was the most common component in the general population. This study also revealed that males were highly affected by MetS than females. CONCLUSION This study illustrates that MetS among children and adolescents is an emerging public health challenge in LMICs, where the prevalence of obesity is on the move. Preventive strategies such as community and school based intervention need to be designed. Promoting physical activities and healthy eating behaviors could avert this problem.
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Affiliation(s)
| | | | | | - Zelalem Tenaw
- College of Medicine and Health Sciences, Hawassa University, Hawassa, Ethiopia
| | - Anmut Alebel
- College of Health Science, Debremarkose University, Debre Markos, Ethiopia
- Australian Centre for Public and Population Health Research, School of Public Health, Faculty of Health, University of Technology Sydney, Ultimo, NSW Australia
| | - Teshager Worku
- College of Health and Medical Sciences, School of Nursing and Midwifery, Haramaya University, Harar, Ethiopia
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20
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Sibling Similarity in Metabolic Syndrome: The Portuguese Sibling Study on Growth, Fitness, Lifestyle and Health. Behav Genet 2019; 49:299-309. [PMID: 30815779 DOI: 10.1007/s10519-019-09953-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Accepted: 02/14/2019] [Indexed: 12/13/2022]
Abstract
This study aims to estimate sibling resemblance in metabolic syndrome (MS) markers, and to investigate the associations of biological and behavioral characteristics with MS. The sample comprises 679 biological siblings (363 females; 316 males) aged 9-20 years. MS markers included waist circumference (WC), high-density lipoprotein cholesterol (HDL-C), triglycerides (TRI), fasting glucose (GLU) and systolic blood pressure (SBP). Body mass index (BMI), biological maturation, muscular, and cardiorespiratory fitness were also assessed. Behavioral characteristics, including dietary intake and physical activity, were self-reported by questionnaire. Multilevel models were used, and sibling resemblance was estimated using the intraclass correlation (ρ). In general, same-sex siblings showed higher resemblance in MS markers than opposite-sex siblings. However, variability in sibling resemblance in MS markers was evident with the inclusion of covariates. Biological characteristics including age, BMI and maturity offset influenced all MS markers except for TRI. Importantly, behavioral characteristics diversely influenced MS markers: fruit and vegetables only influenced SBP, whereas physical activity affected HDL-C. Additionally, muscular fitness impacted significantly on MS Z-score, WC, SBP and GLU, whilst cardiorespiratory fitness only affected WC. In conclusion, biological and behavioral characteristics influenced the expression of MS markers. These results confirmed the importance of considering individual characteristics when designing individualized programs for diminishing the adverse effects of specific MS markers.
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21
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Sekgala MD, Monyeki KD, Mogale A, Mchiza ZJ, Parker W, Choma SR, Makgopa HM. The risk of metabolic syndrome as a result of lifestyle among Ellisras rural young adults. J Hum Hypertens 2018; 32:572-584. [PMID: 29867133 PMCID: PMC6150907 DOI: 10.1038/s41371-018-0076-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Revised: 04/12/2018] [Accepted: 05/08/2018] [Indexed: 12/14/2022]
Abstract
The study aimed to investigate the association between metabolic syndrome (MetS) and lifestyle risk factors among Ellisras adults. A cross-sectional study was conducted on 624 adults (306 males and 318 females). MetS was defined according to the criteria of the International Diabetes Federation. The prevalence of MetS was 23.1% (8.6% males and 36.8 % females). Females appeared to have higher mean values for waist circumference (WC), fasting blood glucose (FBG), total cholesterol (TCHOL) and low-density lipoprotein cholesterol (LDL-C), while males had high mean values for high-density lipoprotein cholesterol (HDL-C), triglycerides (TG), systolic blood pressure (SBP) and diastolic blood pressure (DBP). No significant age and gender differences were observed for dietary intake. Significantly more females (51.9%) presented with increased WC than males (4.6%). Participants who had a high dietary energy intake were significantly less likely to present with larger WC (OR: 0.250 95% CI [0.161; 0.389]), low HDL-C (OR: 0.306 95% CI [0.220; 0.425]) and high LDL-C (OR: 0.583 95% CI [0.418; 0.812]) but more likely to present with elevated FBG (OR: 1.01 95% CI [0.735; 1.386]), high TCHOL (OR: 1.039 95% CI [0.575; 1.337]), high TG (OR: 1.186 95% CI [0.695; 2.023]) and hypertension (OR: 5.205 95% CI [3.156; 8.585]). After adjusting for age, gender, smoking, and alcohol status, high energy intake was more than two times likely to predict MetS in adults with a large WC (OR: 2.766 95% CI [0.863; 3.477] and elevated FBG (OR: 2.227 95% CI [1.051; 3.328]). Therefore, identifying groups that are at an increased risk and those that are in their early stages of MetS will help improve and prevent the increase of the MetS in the future.
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Affiliation(s)
- M D Sekgala
- Department of Physiology and Environmental Health, University of Limpopo, Polokwane, South Africa
- Population Health, Health System and Innovations, Human Science Research Council, Cape Town, South Africa
| | - K D Monyeki
- Department of Physiology and Environmental Health, University of Limpopo, Polokwane, South Africa.
| | - A Mogale
- Department of Biochemistry, Sefako Makgatho, Health Science University, Pretoria, South Africa
| | - Z J Mchiza
- Faculty of Community and Health Sciences, School of Public Health, University of the Western Cape, Bellville, South Africa
| | - W Parker
- Population Health, Health System and Innovations, Human Science Research Council, Cape Town, South Africa
| | - S R Choma
- Department of Pathology and Medical Sciences, University of Limpopo, Polokwane, South Africa
| | - H M Makgopa
- Department of Pathology and Medical Sciences, University of Limpopo, Polokwane, South Africa
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22
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Davidson B, Okpechi I, McCulloch M, Wearne N. Adolescent nephrology: An emerging frontier for kidney care in sub-Saharan Africa. Nephrology (Carlton) 2018; 22:933-939. [PMID: 28782147 DOI: 10.1111/nep.13135] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/31/2017] [Indexed: 12/17/2022]
Abstract
Adolescents make up a quarter of the world's population and are important users of health services. In South Africa little is known about the extent of renal disease or outcomes in this group. Adolescents are a vulnerable age group, due to their neurocognitive development, engagement in high-risk social activities, prevalence of mental illness and increasing rates of HIV infection. In Africa access to renal replacement therapy is rationed, therefore the focus of renal disease must be one of prevention rather than dealing with the management of end stage renal disease. Treating adolescents is a challenging field, as compliance is essential as a preventative strategy. This review will outline how a cost effective adolescent service was established in a resource limited setting. The adolescent friendly clinic aims to ease transition of adolescents, improve engagement within the health service and ultimately aims to improve compliance. In order to treat adolescents, it is important to deliver age-appropriate treatment that can be implemented in any chronic disease setting to give the adolescent the greatest chance of success.
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Affiliation(s)
- Bianca Davidson
- Department of Nephrology and Hypertension, Groote Schuur Hospital, Cape Town, South Africa.,Kidney and Hypertension Research Unit, University of Cape Town, Cape Town, South Africa
| | - Ikechi Okpechi
- Department of Nephrology and Hypertension, Groote Schuur Hospital, Cape Town, South Africa.,Kidney and Hypertension Research Unit, University of Cape Town, Cape Town, South Africa
| | - Mignon McCulloch
- Paediatric Intensive and Critical Unit, Red Cross War Memorial Children's Hospital, Rondebosch, South Africa
| | - Nicola Wearne
- Department of Nephrology and Hypertension, Groote Schuur Hospital, Cape Town, South Africa.,Kidney and Hypertension Research Unit, University of Cape Town, Cape Town, South Africa
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23
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Sekgala MD, Mchiza ZJ, Parker WA, Monyeki KD. Dietary Fiber Intake and Metabolic Syndrome Risk Factors among Young South African Adults. Nutrients 2018; 10:E504. [PMID: 29670048 PMCID: PMC5946289 DOI: 10.3390/nu10040504] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 04/03/2018] [Accepted: 04/04/2018] [Indexed: 12/28/2022] Open
Abstract
This study attempts to bridge the research gap regarding the importance of dietary fiber in reducing metabolic syndrome (MetS) risk factors in young rural South Africans. A total of 627 individuals (309 males and 318 females) aged 18–30 years participated in the study. Dietary intake was measured using a validated 24-h recall method. The consumption of different types of dietary fiber (total, soluble, and insoluble) was calculated and presented as grams. Anthropometrics, blood pressure, fasting blood glucose, and lipid profiles were measured according to standard protocols. According to the definition of the International Diabetes Federation (IDF), the prevalence of MetS was 23.1%. Overall, the total median [interquartile range (IQR)] values for total, insoluble, and soluble fiber consumed were 4.6 g [0.0–48.9], 0.0 g [0.0–18.0], and 0.0 g [0.0–15.0], respectively. Females had a higher median [IQR] intake of total (5.1 g [0.0–48.9] vs. 4.3 g [0.0–43.9]), insoluble (0.0 g [0.0–18.0] vs. 0.0 g [0.0–12.0]), and soluble fiber (0.0 g [0.0–14.9] vs. 0.0 g [0.0–7.3]) than males, respectively. The mean values for waist circumference, fasting blood glucose, and total cholesterol were higher in females than males (82.20 cm vs. 75.07 cm; 5.59 mmol/L vs. 5.44 mmol/L; and 4.26 mmol/L vs. 4.03 mmol/L, respectively), with significant differences observed for waist circumference and total cholesterol (p < 0.001 and p = 0.005, respectively). More than 97% of participants had fiber intakes below the recommended levels. After adjusting for all potential confounders (age, gender, and energy), log total fiber was inversely associated with fasting blood glucose (β = −0.019, 95% CI [−0.042 to 0.003], p < 0.05), systolic blood pressure (β = −0.002, 95% CI [−0.050 to 0.002], p < 0.05) and high-density lipoprotein cholesterol (β = −0.085, 95% CI [−0.173 to 0.002], p = 0.051) This study may be of public health relevance, providing a potential link between less dietary fiber intake and fasting blood glucose (FBG) and both systolic and diastolic blood pressure. Therefore, this observational data encourages public health policy measures to increase the consumption of dietary fiber in rural communities in order to lower the burden of MetS and its associated risk factors.
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Affiliation(s)
- Machoene D Sekgala
- Population Health, Health Systems and Innovations, Human Science Research Council, Cape Town 8001, South Africa.
- Department of Physiology and Environmental Health, University of Limpopo, Polokwane 0727, South Africa.
| | - Zandile J Mchiza
- Faculty of Community and Health Sciences, School of Public Health, University of the Western Cape, Bellville 7535, South Africa.
| | - Whadi-Ah Parker
- Population Health, Health Systems and Innovations, Human Science Research Council, Cape Town 8001, South Africa.
| | - Kotsedi D Monyeki
- Department of Physiology and Environmental Health, University of Limpopo, Polokwane 0727, South Africa.
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24
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Glezeva N, Chisale M, McDonald K, Ledwidge M, Gallagher J, Watson CJ. Diabetes and complications of the heart in Sub-Saharan Africa: An urgent need for improved awareness, diagnostics and management. Diabetes Res Clin Pract 2018; 137:10-19. [PMID: 29287838 DOI: 10.1016/j.diabres.2017.12.019] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Revised: 11/21/2017] [Accepted: 12/21/2017] [Indexed: 12/24/2022]
Abstract
Type 2 diabetes mellitus is no longer a disease of high income countries but a global health pandemic. With the continued and rapid increase in its prevalence worldwide it is forecasted that diabetes will be a leading cause of morbidity and mortality. A major concern stems from its role in development and progression of cardiovascular disease, including cardiac dysfunction and heart failure. Within low- and middle-income areas such as Sub-Saharan Africa the burden of diabetes is already significant driven by many factors, including, socioeconomic (urbanisation), nutritional (high-calorie "western-diet", obesity) and lifestyle (physical inactivity) changes. Insufficient economic and community resources, poor health care system development and chronic disease management, poor education, and a lack of preventative and diagnostic measures further aggravate the severity of the diabetes problem. This review outlines the burden of type 2 diabetes mellitus in Sub-Saharan Africa and highlights the need for improved community health care and regulations to reduce its epidemiological spread and devastating impact on health.
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Affiliation(s)
- Nadezhda Glezeva
- gHealth Research Group, UCD Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Ireland
| | | | - Kenneth McDonald
- gHealth Research Group, UCD Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Ireland
| | - Mark Ledwidge
- gHealth Research Group, UCD Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Ireland
| | - Joe Gallagher
- gHealth Research Group, UCD Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Ireland
| | - Chris J Watson
- Centre for Experimental Medicine, Queen's University Belfast, Northern Ireland, United Kingdom.
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25
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Nogueira-de-Almeida CA, de Mello ED. Different Criteria for the Definition of Insulin Resistance and Its Relation with Dyslipidemia in Overweight and Obese Children and Adolescents. Pediatr Gastroenterol Hepatol Nutr 2018; 21:59-67. [PMID: 29383306 PMCID: PMC5788952 DOI: 10.5223/pghn.2018.21.1.59] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Revised: 10/24/2017] [Accepted: 10/26/2017] [Indexed: 02/06/2023] Open
Abstract
PURPOSE to compare cut off points corrected for age and gender (COOP) with fixed cut off points (FCOP) for fasting plasma insulin and Homeostatic model assessment-insulin resistance (HOMA-IR) for the diagnosis of IR in obese children and adolescents and their correlation with dyslipidemia. METHODS A multicenter, cross-sectional study including 383 subjects aged 7 to 18 years, evaluating fasting blood glucose, plasma insulin, and lipid profile. Subjects with high insulin levels and/or HOMA-IR were considered as having IR, based on two defining criteria: FCOP or CCOP. The frequency of metabolic abnormalities, the presence of IR, and the presence of dyslipidemia in relation to FCOP or CCOP were analyzed using Fisher and Mann-Whitney exact tests. RESULTS Using HOMA-IR, IR was diagnosed in 155 (40.5%) and 215 (56.1%) patients and, using fasting insulin, 150 (39.2%) and 221 (57.7%), respectively applying FCOP and CCOP. The use of CCOP resulted in lower insulin and HOMA-IR values than FCOP. Dyslipidemia was not related to FCOP or CCOP. Blood glucose remained within normal limits in all patients with IR. There was no difference in the frequency of IR identified by plasma insulin or HOMA-IR, both for FCOP and CCOP. CONCLUSION The CCOP of plasma insulin or of HOMA-IR detected more cases of IR as compared to the FCOP, but were not associated with the frequency of dyslipidemia. As blood glucose has almost no fluctuation in this age group, even in the presence of IR, fasting plasma insulin detected the same cases of IR that would be detected by HOMA-IR.
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Affiliation(s)
| | - Elza Daniel de Mello
- Department of Pediatric, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
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