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Cechin L, Dominguez-Dominguez L, Campbell L, Hamzah L, Fox J, Vincent RP, Dimitriadis GK, Goff L, Post FA. Waist circumference and cardiometabolic parameters in people of African/Caribbean ancestry with HIV in South London (CKD-AFRICA study). Int J STD AIDS 2024; 35:521-526. [PMID: 38377277 PMCID: PMC11157977 DOI: 10.1177/09564624241233036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Accepted: 01/30/2024] [Indexed: 02/22/2024]
Abstract
BACKGROUND There are no validated waist circumference (WC) cut-offs to define metabolic syndrome in Black people with HIV. METHODS Cross-sectional analyses within the CKD-AFRICA study. We used Pearson correlation coefficients and receiver operating characteristic (ROC) curves to describe the relationship between WC and cardiometabolic parameters including triglycerides, cholesterol, glucose, glycated haemoglobin (HbA1c), and homeostatic model assessment for insulin resistance (HOMA-IR), and to identify optimal WC cut-offs for each of these outcomes. RESULTS We included 383 participants (55% female, median age 52 years) with generally well controlled HIV. Female and male participants had similar WC (median 98 vs. 97 cm, p = .16). Generally weak correlations (r2 < 0.2) between WC and other cardiometabolic parameters were observed, with low (<0.7) areas under the ROC curves. The optimal WC cut-offs for constituents of the metabolic syndrome, HbA1c and HOMA-IR ranged from 92 to 101 cm in women and 89-98 cm in men, respectively; these cut-offs had variable sensitivity (52%-100%) and generally poor specificity (28%-72%). CONCLUSIONS In this cohort of Black people with HIV, WC cut-offs for cardiometabolic risk factors in male participants were in line with the recommended value of 94 cm while in female participants they vastly exceeded the recommended 80 cm for white women.
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Affiliation(s)
- Laura Cechin
- King’s College Hospital NHS Foundation Trust, London, UK
| | | | - Lucy Campbell
- King’s College Hospital NHS Foundation Trust, London, UK
- King’s College London, London, UK
| | - Lisa Hamzah
- St George’s Hospital NHS Foundation Trust, London, UK
| | - Julie Fox
- King’s College London, London, UK
- Guys and St Thomas’s NHS Foundation Trust, London, UK
| | - Royce P Vincent
- King’s College Hospital NHS Foundation Trust, London, UK
- King’s College London, London, UK
- Synnovis Analytics, London, UK
| | - Georgios K Dimitriadis
- King’s College Hospital NHS Foundation Trust, London, UK
- King’s College London, London, UK
| | - Louise Goff
- Leicester General Hospital, University of Leicester, Leicester, UK
| | - Frank A Post
- King’s College Hospital NHS Foundation Trust, London, UK
- King’s College London, London, UK
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Dhiman P, Singh P, Arora S, Kashyap A, Jain P, Singh M, Singh J, Singh A, Suhani F, Singh A, Goyal MK, Vuthaluru AR. A Comprehensive Analysis of Clinical, Biochemical, and Polysomnographic Characteristics in Patients With Type 2 Diabetes Mellitus With and Without Obstructive Sleep Apnea. Cureus 2024; 16:e59734. [PMID: 38841011 PMCID: PMC11151989 DOI: 10.7759/cureus.59734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/06/2024] [Indexed: 06/07/2024] Open
Abstract
BACKGROUND Obstructive sleep apnea (OSA) has been a significant contributor to mortality all across the globe. The most attributing factors to pathogenesis are metabolic syndrome, obesity, diabetes, and so on, but the indicators of its early detection are still elusive. OBJECTIVE The study aimed to compare the clinical, biochemical, and polysomnographic characteristics of type 2 diabetes patients with and without OSA. DESIGN AND METHODS This cross-sectional study was conducted at the Department of Medicine and Endocrinology Unit of Dayanand Medical College and Hospital, Ludhiana. A total of 584 patients with type 2 diabetes were assessed using the Berlin questionnaire, with 302 fulfilling the criteria for a high risk of OSA. Out of 302 patients who met the criteria for the high-risk category, 110 patients underwent a sleep study. RESULTS Three hundred and two patients satisfying the inclusion and exclusion criteria were enrolled in the study. A total of 110 patients underwent a sleep study, of which 68 (61.8%) had evidence of OSA. The waist-to-hip ratio was considerably higher in the OSA patients than in the non-OSA group (1.09 vs 0.930, p = 0.001). HbA1c >7% was found in 58.8% of OSA patients contrary to 38.1% of non-OSA patients. Fasting plasma glucose levels (>126 mg/dl) were identified in a substantially larger proportion of OSA patients than the non-OSA patients (64.7% vs 45.2%, p = 0.04). Similarly, peripheral neuropathy was found more commonly in the OSA patients than in the non-OSA patients (47% vs. 26.1%, p = 0.02). Prevalence of retinopathy, nephropathy, coronary artery disease, stroke, heart failure, and peripheral vascular disease did not differ significantly between the two groups. CONCLUSIONS OSA frequently occurs among individuals diagnosed with type 2 diabetes mellitus. The prompt identification of OSA within this demographic is imperative to pinpoint those at an elevated risk of succumbing to conditions such as peripheral neuropathy, the exacerbation of glycemic control, and the onset of unmanaged hypertension. Moreover, there exists a positive correlation between the waist-to-hip ratio and the prevalence of OSA in persons with type 2 diabetes mellitus, highlighting the critical role of waist-to-hip ratio assessments in this patient population.
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Affiliation(s)
- Pulkit Dhiman
- Gastroenterology, Dayanand Medical College and Hospital, Ludhiana, IND
| | - Parminder Singh
- Endocrinology, Dayanand Medical College and Hospital, Ludhiana, IND
| | - Saurabh Arora
- Endocrinology, Dayanand Medical College and Hospital, Ludhiana, IND
| | - Anil Kashyap
- Pulmonology, Dayanand Medical College and Hospital, Ludhiana, IND
| | - Prannav Jain
- Medicine and Surgery, Dayanand Medical College and Hospital, Ludhiana, IND
| | - Manavjot Singh
- Internal Medicine, Dayanand Medical College and Hospital, Ludhiana, IND
| | - Jaskaran Singh
- Internal Medicine, Dayanand Medical College and Hospital, Ludhiana, IND
| | - Akashdeep Singh
- Pulmonary Medicine, Dayanand Medical College and Hospital, Ludhiana, IND
| | - Fnu Suhani
- Medicine, Dayanand Medical College and Hospital, Ludhiana, IND
| | - Anmol Singh
- Internal Medicine, Dayanand Medical College and Hospital, Ludhiana, IND
- Internal Medicine, Global Heart & Super Speciality Hospital, Ludhiana, IND
| | - Manjeet K Goyal
- Gastroenterology and Hepatology, Dayanand Medical College and Hospital, Ludhiana, IND
| | - Ashita R Vuthaluru
- Anesthesia and Critical Care, Maharishi Markandeshwar Institute of Medical Sciences and Research, Ambala, IND
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Shrestha RM, Pham TTP, Yamamoto S, Nguyen CQ, Fukunaga A, Danh PC, Hachiya M, Le HX, Do HT, Mizoue T, Inoue Y. Comparison of waist circumference and waist-to-height ratio as predictors of clustering of cardiovascular risk factors among middle-aged people in rural Khanh Hoa, Vietnam. Am J Hum Biol 2024:e24063. [PMID: 38470099 DOI: 10.1002/ajhb.24063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 02/05/2024] [Accepted: 02/26/2024] [Indexed: 03/13/2024] Open
Abstract
OBJECTIVE Given the population-level variation in stature, a universal cut-off for waist circumference (WC) may not be appropriate for some populations. We compared the performance of WC and waist-to-height ratio (WHtR) to detect the clustering of cardiovascular disease (CVD) risk factors in rural Vietnam. METHODS We obtained data from a baseline survey of the Khanh Hoa Cardiovascular Study comprising 2942 middle-aged residents (40-60 years). We used areas under the receiver operating characteristics curve (AUROC), net reclassification index (NRI), and integrated discrimination improvement (IDI) to compare the performance of WC and WHtR in predicting CVD risk clustering (≥2 of the following risk factors: hypertension, diabetes, dyslipidemia, and elevated C-reactive protein). RESULTS The optimal cut-off values for WC were 81.8 and 80.7 cm for men and women, respectively. Regarding the clustering of CVD risk factors, the AUROC (95% CI) of WC and WHtR were 0.707 (0.676 to 0.739) and 0.719 (0.689 to 0.749) in men, and 0.682 (0.654 to 0.709) and 0.690 (0.663 to 0.717) in women, respectively. Compared with WC, WHtR had a better NRI (0.229; 0.102-0.344) and IDI (0.012; 0.004-0.020) in men and a better NRI (0.154; 0.050-0.257) in women. CONCLUSIONS The optimal WC cut-off for Vietnamese men was approximately 10 cm below the recommended Asian cut-off. WHtR might perform slightly better in predicting the clustering of CVD risk factors among the rural population in Vietnam.
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Affiliation(s)
- Rachana Manandhar Shrestha
- Department of Epidemiology and Prevention, Center for Clinical Sciences, National Center for Global Health and Medicine, Tokyo, Japan
| | - Thuy Thi Phuong Pham
- Department of Non-communicable Disease Control and Nutrition, Pasteur Institute in Nha Trang, Khanh Hoa, Vietnam
| | - Shohei Yamamoto
- Department of Epidemiology and Prevention, Center for Clinical Sciences, National Center for Global Health and Medicine, Tokyo, Japan
| | - Chau Que Nguyen
- Department of Non-communicable Disease Control and Nutrition, Pasteur Institute in Nha Trang, Khanh Hoa, Vietnam
| | - Ami Fukunaga
- Department of Epidemiology and Prevention, Center for Clinical Sciences, National Center for Global Health and Medicine, Tokyo, Japan
| | - Phan Cong Danh
- Department of Non-communicable Disease Control and Nutrition, Pasteur Institute in Nha Trang, Khanh Hoa, Vietnam
| | - Masahiko Hachiya
- Bureau of International Health Cooperation, National Center for Global Health and Medicine, Tokyo, Japan
| | - Huy Xuan Le
- Pasteur Institute in Nha Trang, Khanh Hoa, Vietnam
| | - Hung Thai Do
- Pasteur Institute in Nha Trang, Khanh Hoa, Vietnam
| | - Tetsuya Mizoue
- Department of Epidemiology and Prevention, Center for Clinical Sciences, National Center for Global Health and Medicine, Tokyo, Japan
| | - Yosuke Inoue
- Department of Epidemiology and Prevention, Center for Clinical Sciences, National Center for Global Health and Medicine, Tokyo, Japan
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Castle AC, Hoeppner SS, Manne-Goehler JM, Olivier S, Magodoro IM, Singh U, Edwards JA, Tanser F, Bassett IV, Wong EB, Siedner MJ. Identifying sex-specific anthropometric measures and thresholds for dysglycemia screening in an HIV-endemic rural South African population. PLOS GLOBAL PUBLIC HEALTH 2023; 3:e0001698. [PMID: 37889883 PMCID: PMC10610455 DOI: 10.1371/journal.pgph.0001698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 09/28/2023] [Indexed: 10/29/2023]
Abstract
Valid screening and diagnostic algorithms are needed to achieve 2030 targets proposed by the WHO's Global Diabetes Compact. We explored anthropometric thresholds to optimally screen and refer individuals for diabetes testing in rural South Africa. We evaluated screening thresholds for waist circumference (WC), body mass index (BMI), and waist-hip ratio (WHR) to detect dysglycemia based on a glycated hemoglobin (HbA1C) ≥6.5% among adults in a population-based study in South Africa using weighted, non-parametric ROC regression analyses. We then assessed the diagnostic validity of traditional obesity thresholds, explored optimal thresholds for this population, and fit models stratified by sex, age, and HIV status. The prevalence of dysglycemia in the total study population (n = 17,846) was 7.7%. WC had greater discriminatory capacity than WHR to detect dysglycemia in men (p-value<0.001) and women (p<0.001). WC had greater discriminatory capacity than BMI to detect dysglycemia in women (p<0.001). However, BMI and WC performed similarly for men (p = 0.589). Whereas traditional WC thresholds for women (>81cm) performed well (sensitivity 91%, positive predictive value [PPV] 14.9%), substantially lower thresholds were needed to achieve acceptable sensitivity and PPV among men (traditional >94cm, derived >79.5cm). WC outperforms BMI as an anthropometric screening measure for dysglycemia in rural South Africa. Whereas WC guideline thresholds are appropriate for women, male-derived WC cutoffs performed better at lower thresholds. In this rural South African population, thresholds that maximize specificity and PPV for efficient resource allocation may be preferred.
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Affiliation(s)
- Alison C. Castle
- Africa Health Research Institute, KwaZulu-Natal, South Africa
- Division of Infectious Diseases, Massachusetts General Hospital, Boston, Massachusetts, United States of America
- Harvard Medical School, Boston, Massachusetts, United States of America
| | | | - Jennifer M. Manne-Goehler
- Division of Infectious Diseases, Massachusetts General Hospital, Boston, Massachusetts, United States of America
- Harvard Medical School, Boston, Massachusetts, United States of America
| | - Stephen Olivier
- Africa Health Research Institute, KwaZulu-Natal, South Africa
| | - Itai M. Magodoro
- Emory Global Diabetes Research Center, Rollins School of Public Health, Emory University, Atlanta, Georgia, United States of America
| | - Urisha Singh
- Africa Health Research Institute, KwaZulu-Natal, South Africa
- University of KwaZulu-Natal, Durban, KwaZulu-Natal, South Africa
| | - Johnathan A. Edwards
- Department of Biostatistics and Bioinformatics, Emory University, Atlanta, Georgia, United States of America
- School of Health and Social Care, University of Lincoln, Lincoln, United Kingdom
| | - Frank Tanser
- Africa Health Research Institute, KwaZulu-Natal, South Africa
- School of Health and Social Care, University of Lincoln, Lincoln, United Kingdom
- Lincoln Institute for Health, University of Lincoln, Lincoln, United Kingdom
| | - Ingrid V. Bassett
- Africa Health Research Institute, KwaZulu-Natal, South Africa
- Division of Infectious Diseases, Massachusetts General Hospital, Boston, Massachusetts, United States of America
- Harvard Medical School, Boston, Massachusetts, United States of America
| | - Emily B. Wong
- Africa Health Research Institute, KwaZulu-Natal, South Africa
- University of KwaZulu-Natal, Durban, KwaZulu-Natal, South Africa
- Division of Infectious Diseases, University of Alabama Birmingham, Birmingham, Alabama, United States of America
| | - Mark J. Siedner
- Africa Health Research Institute, KwaZulu-Natal, South Africa
- Division of Infectious Diseases, Massachusetts General Hospital, Boston, Massachusetts, United States of America
- Harvard Medical School, Boston, Massachusetts, United States of America
- University of KwaZulu-Natal, Durban, KwaZulu-Natal, South Africa
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Darko SN, Meeks KAC, Owiredu WKBA, Laing EF, Boateng D, Beune E, Addo J, de-Graft Aikins A, Bahendeka S, Mockenhaupt F, Spranger J, Agyei-Baffour P, Klipstein-Grobusch K, Smeeth L, Agyemang C, Owusu-Dabo E. Anthropometric indices and their cut-off points in relation to type 2 diabetes among Ghanaian migrants and non-migrants: The RODAM study. Diabetes Res Clin Pract 2021; 173:108687. [PMID: 33571601 DOI: 10.1016/j.diabres.2021.108687] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 08/20/2020] [Accepted: 01/25/2021] [Indexed: 12/11/2022]
Abstract
AIMS To compare body mass index (BMI), waist circumference (WC) and waist-to-hip ratio (WHR) as determinants of type 2 diabetes (T2DM) and determine optimal cut-offs in a sub-Saharan African population. METHODS Data from the RODAM study including Ghanaians aged 25-70 living in rural Ghana, urban Ghana and Europe were used. Logistic regression was used to assess associations between BMI, WC, WHR and T2DM status, by sex and site. Area under the curve (AUC) were constructed to discriminate between indices and establish performance and cut-off values. RESULTS WHR had the strongest association with T2DM in men and women across sites, except for rural men. The highest adjusted odds ratio (aOR) and AUC were in rural women for WHR (aOR = 2.09, 95%CI = 1.47-2.99; AUC = 0.71). Among migrants, WHR had higher AUCs compared with BMI (p < 0.01) and WC (p < 0.05). Cut-offs for BMI and WC in men were lower compared with the WHO reference across sites (WC: 85.4-93.7 vs 102 cm, BMI: 23.1-28.2 vs 30.0 kg/m2). CONCLUSIONS WHR outperformed BMI and WC as anthropometric indices in relation to T2DM among Ghanaian migrants. The lower BMI and WC cut-offs for T2DM than WHO established standards, highlights the need for African specific cut-offs to avoid missing high risk populations.
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Affiliation(s)
- Samuel N Darko
- Kumasi Centre for Collaborative Research in Tropical Medicine, Kwame Nkrumah University of Science and Technology (KNUST), Kumasi, Ghana; Department of Molecular Medicine, School of Medical Sciences, Kwame Nkrumah University of Science and Technology (KNUST), Kumasi, Ghana.
| | - Karlijn A C Meeks
- Department of Public Health, Amsterdam UMC, University of Amsterdam, Amsterdam Public Health Research Institute, Amsterdam, Netherlands; Center for Research on Genomics and Global Health, National Human Genome Research Institute, National Institutes of Health, Bethesda, United States
| | - William K B A Owiredu
- Department of Molecular Medicine, School of Medical Sciences, Kwame Nkrumah University of Science and Technology (KNUST), Kumasi, Ghana
| | - Edwin F Laing
- Department of Molecular Medicine, School of Medical Sciences, Kwame Nkrumah University of Science and Technology (KNUST), Kumasi, Ghana
| | - Daniel Boateng
- Julius Global Health, Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, Netherlands
| | - Erik Beune
- Department of Public Health, Amsterdam UMC, University of Amsterdam, Amsterdam Public Health Research Institute, Amsterdam, Netherlands
| | - Juliet Addo
- Department of Non-Communicable Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, UK
| | - Ama de-Graft Aikins
- Regional Institute for Population Studies, University of Ghana, Legon-Accra, Ghana
| | - Silver Bahendeka
- Mother Kevin Postgraduate Medical School (MKPGMS), Uganda Martyrs University, Kampala, Uganda
| | - Frank Mockenhaupt
- Institute of Tropical Medicine and International Health, Charite-University Medicine Berlin, Germany
| | - Joachim Spranger
- Department of Endocrinology and Metabolism, Charite-University Medicine Berlin, Berlin, Germany
| | - Peter Agyei-Baffour
- School of Public Health, Kwame Nkrumah University of Science and Technology (KNUST), Kumasi, Ghana
| | - Kerstin Klipstein-Grobusch
- Julius Global Health, Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, Netherlands; Division of Epidemiology and Biostatistics, School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Liam Smeeth
- Department of Non-Communicable Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, UK
| | - Charles Agyemang
- Department of Public Health, Amsterdam UMC, University of Amsterdam, Amsterdam Public Health Research Institute, Amsterdam, Netherlands
| | - Ellis Owusu-Dabo
- School of Public Health, Kwame Nkrumah University of Science and Technology (KNUST), Kumasi, Ghana
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Awopeju OF, Fawale MB, Olowookere SA, Salami OT, Adewole OO, Erhabor GE. The risk of obstructive sleep apnea and its association with indices of general and abdominal obesity in a Nigerian family practice clinic: a cross-sectional study. ALEXANDRIA JOURNAL OF MEDICINE 2020. [DOI: 10.1080/20905068.2019.1711304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Affiliation(s)
| | - Michael Bimbo Fawale
- Neurology unit, Department of Medicine, Obafemi Awolowo University, Ile Ife, Nigeria
| | - Samuel Anu Olowookere
- Department of Family Medicine, Obafemi Awolowo University Teaching Hospitals Complex, Ile Ife, Nigeria
- Department of Community Health, Obafemi Awolowo University, Ile Ife, Nigeria
| | - Oluwasina Titus Salami
- Department of Family Medicine, Obafemi Awolowo University Teaching Hospitals Complex, Ile Ife, Nigeria
| | | | - Gregory Efosa Erhabor
- Respiratory unit, Department of Medicine, Obafemi Awolowo University, Ile Ife, Nigeria
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Anusha K, Hettiaratchi UPK, Athiththan LV, Perera PPR. Inter-relationship of serum leptin levels with selected anthropometric parameters among a non-diabetic population: a cross-sectional study. Eat Weight Disord 2019; 24:551-556. [PMID: 28688049 DOI: 10.1007/s40519-017-0413-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Accepted: 06/19/2017] [Indexed: 12/28/2022] Open
Abstract
PURPOSE Association between serum leptin levels and anthropometric parameter is well established in western countries according to the specific WHO cut-off values assigned for those populations, whereas it is not clearly defined for Asians especially with respect to gender. Thus, the objectives of this study were to determine the relationship of serum leptin levels with body mass index (BMI), waist circumference (WC), waist to hip ratio (WHR) to identify the variations of serum leptin levels with gender and to evaluate the serum leptin levels in risk and non-risk groups based on their anthropometric values. SUBJECTS/METHODS A cross-sectional study was carried out among 226 apparently healthy subjects (non-diabetics, age 20-70 years). Height, weight, WC, hip circumference (HC) and mid arm circumference (MAC) were measured. BMI, WHR, waist to height ratio (WHtR) were calculated. Fasting blood samples were collected. Serum leptin levels were measured using human leptin ELISA kits. RESULTS Majority of the participants were females (59.3%). Serum leptin levels were significantly higher in females (24.8 ± 17.1 ng/mL) compared to males (9.3 ± 7.9 ng/mL). Significant positive correlations (P < 0.05) were observed between serum leptin levels and all anthropometric parameters except height in both genders. The risk groups according to BMI, WC and WHR in females were hyperleptinaemic and had significantly (P < 0.05) higher serum leptin levels than the non-risk groups. CONCLUSIONS Linear trend was observed for serum leptin levels with weight, BMI, WC, HC, WHR, MAC and WHtR in both genders. Though the serum leptin levels were higher among risk groups, according to WHR, WC and BMI, the hyperleptinaemia was observed only among females. LEVEL OF EVIDENCE A descriptive cross-sectional study, Level V.
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Affiliation(s)
- K Anusha
- Department of Biochemistry, Faculty of Medical Sciences, University of Sri Jayewardenepura, Gangodawila, Nugegoda, Sri Lanka
| | - U P K Hettiaratchi
- Department of Biochemistry, Faculty of Medical Sciences, University of Sri Jayewardenepura, Gangodawila, Nugegoda, Sri Lanka.
| | - L V Athiththan
- Department of Biochemistry, Faculty of Medical Sciences, University of Sri Jayewardenepura, Gangodawila, Nugegoda, Sri Lanka
| | - P P R Perera
- Department of Biochemistry, Faculty of Medical Sciences, University of Sri Jayewardenepura, Gangodawila, Nugegoda, Sri Lanka
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Hailemariam S, Melak T, Abebe M. Waist Circumference Cutoff Point Determination for Defining Metabolic Syndrome in Type 2 Diabetes Mellitus in Ethiopia. EJIFCC 2019; 30:48-58. [PMID: 30881274 PMCID: PMC6416805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
BACKGROUND Metabolic syndrome (MetS) is a complex disorder characterized by a cluster of interrelated cardiovascular risk factors. So far, cutoff point variability of waist circumference was documented to define MetS. OBJECTIVE To determine the classification power and cutoff point of waist circumference to define MetS among patients with type 2 diabetes. METHODS An institution-based cross sectional study was conducted from March to April 2017 at Ayder Comprehensive Specialized Hospital among patients with type 2 diabetes. Using systematic sampling technique, 520 participants were enrolled into the study. Data were collected by checklist, anthropometric measurements and biochemical analyses. Data were entered to Epi-info 3.5.1 and transferred to SPSS 20 for analysis. Participants having more than one abnormal MetS components were categorized as patients and the others were considered as control. The classification power of waist circumference to distinguish patients from controls was determined by ROC curve analysis. Waist circumference cutoff points were determined by taking the point that had a maximum youden index. RESULTS Among the 520 participants, 308 (59.2%) were females. The mean age of the participants was 56 ± 10.8 years for males and 55 ± 11.4 years for females. The classification power of waist circumference was 0.67 (0.58-0.75) for male and 0.63 (0.52-0.73) for females. The optimal waist circumference cutoff point to distinguish patients from controls were 95.5 cm (sensitivity 39.8%, specificity 86.3%, p< 0.001) for males, and 87.5 cm (sensitivity 73.1%, specificity 54.5%, p< 0.017) for females. CONCLUSION The positive predictive value of waist circumference was 93% for females and 90% for males in Northern Ethiopia using 87.5 and 95.5 cm points cut-off for females and males, respectively.
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Affiliation(s)
- Shewit Hailemariam
- Ayder Comprehensive Specialized Hospital, Mekelle University, Tigray Region, Northern Ethiopia
| | - Tadele Melak
- Department of Clinical Chemistry, School of Laboratory Medicine, College of Medicine and Health Sciences, University of Gondar, Ethiopia,Corresponding author: Tadele Melak P.O. Box 196 College of Medicine and Health Sciences Department of Clinical Chemistry University of Gondar Amhara Regional State Ethiopia Phone: +251921576005 E-mail:
| | - Molla Abebe
- Department of Clinical Chemistry, School of Laboratory Medicine, College of Medicine and Health Sciences, University of Gondar, Ethiopia
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Kabakambira JD, Baker RL, Briker SM, Courville AB, Mabundo LS, DuBose CW, Chung ST, Eckel RH, Sumner AE. Do current guidelines for waist circumference apply to black Africans? Prediction of insulin resistance by waist circumference among Africans living in America. BMJ Glob Health 2018; 3:e001057. [PMID: 30364383 PMCID: PMC6195140 DOI: 10.1136/bmjgh-2018-001057] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 08/19/2018] [Accepted: 08/20/2018] [Indexed: 02/06/2023] Open
Abstract
Background To lower the risk of diabetes and heart disease in Africa, identification of African-centred thresholds for inexpensive biomarkers of insulin resistance (IR) is essential. The waist circumference (WC) thresholds that predicts IR in African men and women have not been established, but investigations recently conducted in Africa using indirect measures of IR suggest IR is predicted by WC of 80–95 cm in men and 90–99 cm in women. These WC cannot be used for guidelines until validated by direct measurements of IR and visceral adipose tissue (VAT). Therefore, we determined in a group of African-born black people living in America (A) the WC, which predicts IR and (B) the influence of abdominal fat distribution on IR. Methods The 375 participants (age 38±10 years (mean±SD), 67% men) had IR determined by HOMA-IR and Matsuda index. VAT and subcutaneous adipose tissue (SAT) were measured by abdominal CT scans. Optimal WC for the prediction of IR was determined in sex-specific analyses by area under the receiver operating characteristic (AUC-ROC) and Youden index. Results Women had more SAT (203±114 vs 128±74 cm2) and less VAT than men (63±48 vs 117±72 cm2, p<0.001). Optimal WC for prediction of IR in men and women were: 91 cm (AUC-ROC: 0.80±0.03 (mean±SE)) and 96 cm (AUC-ROC: 0.81±0.08), respectively. Regression analyses revealed a significant sex–VAT interaction (p<0.001). Therefore, for every unit increase in VAT, women had a 0.94 higher unit increase in SAT and 0.07 higher unit increase in WC than men. Conclusion Working with a group of African-born black people living in America, we accessed technology, which validated observations made in Africa. Higher SAT at every level of VAT explained why the WC that predicted IR was higher in women (96 cm) than men (91 cm). For Africans to benefit from WC measurements, convening a panel of experts to develop evidence-based African-centred WC guidelines may be the way forward.
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Affiliation(s)
- J Damascene Kabakambira
- Section on Ethnicity and Health, Diabetes, Endocrinology, and Obesity Branch, National Institute of Diabetes, Digestive and Kidney Diseases, Bethesda, Maryland, USA.,National Institute of Minority Health and Health Disparities, Bethesda, Maryland, USA
| | - Rafeal L Baker
- Section on Ethnicity and Health, Diabetes, Endocrinology, and Obesity Branch, National Institute of Diabetes, Digestive and Kidney Diseases, Bethesda, Maryland, USA
| | - Sara M Briker
- Section on Ethnicity and Health, Diabetes, Endocrinology, and Obesity Branch, National Institute of Diabetes, Digestive and Kidney Diseases, Bethesda, Maryland, USA
| | - Amber B Courville
- Clinical Center, National Institutes of Health, Bethesda, Maryland, USA
| | - Lilian S Mabundo
- Section on Ethnicity and Health, Diabetes, Endocrinology, and Obesity Branch, National Institute of Diabetes, Digestive and Kidney Diseases, Bethesda, Maryland, USA
| | - Christopher W DuBose
- Section on Ethnicity and Health, Diabetes, Endocrinology, and Obesity Branch, National Institute of Diabetes, Digestive and Kidney Diseases, Bethesda, Maryland, USA
| | - Stephanie T Chung
- Section on Ethnicity and Health, Diabetes, Endocrinology, and Obesity Branch, National Institute of Diabetes, Digestive and Kidney Diseases, Bethesda, Maryland, USA
| | - Robert H Eckel
- University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Anne E Sumner
- Section on Ethnicity and Health, Diabetes, Endocrinology, and Obesity Branch, National Institute of Diabetes, Digestive and Kidney Diseases, Bethesda, Maryland, USA.,National Institute of Minority Health and Health Disparities, Bethesda, Maryland, USA
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10
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Owolabi EO, Ter Goon D, Adeniyi OV, Ajayi AI. Optimal waist circumference cut-off points for predicting metabolic syndrome among low-income black South African adults. BMC Res Notes 2018; 11:22. [PMID: 29329600 PMCID: PMC5766973 DOI: 10.1186/s13104-018-3136-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Accepted: 01/06/2018] [Indexed: 12/12/2022] Open
Abstract
OBJECTIVE Waist circumference has been identified as one of the strongest predictive tool for metabolic syndrome. This study determines the optimal cut-off point of waist circumference for metabolic syndrome among low-income earning South African black population, in Eastern Cape, South Africa. The optimal waist circumference cut-off point was determined through receiver operating characteristics analysis using the maximum Youden index. RESULTS Among men, waist circumference at a cut-off value of 95.25 cm yielded the highest Youden index of 0.773 (sensitivity = 98%, specificity = 79%, area under curve 0.893). For women, waist circumference of 89.45 cm yielded the highest Youden index of 0.339 (sensitivity = 88%, specificity = 46%, area under curve 0.713). The prevalence of metabolic syndrome among men, women and both sexes using the new cut-off points were: 17.8, 20.8 and 17.7%, respectively, compared to; 15.6, 24.8 and 21.8%, using the traditional cut-off values of 94 and 80 cm for men and women, respectively. The traditional waist circumference value slightly under-estimated the prevalence of metabolic syndrome among men and over-estimated among women and the overall population. A specific waist circumference cut-off point for South African blacks is needed for correct identification of the metabolic state of the populace in order to develop appropriate interventions.
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Affiliation(s)
- Eyitayo Omolara Owolabi
- Department of Nursing Science, Faculty of Health Sciences, University of Fort Hare, East London, South Africa.
| | - Daniel Ter Goon
- Department of Nursing Science, Faculty of Health Sciences, University of Fort Hare, East London, South Africa
| | - Oladele Vincent Adeniyi
- Department of Family Medicine, Faculty of Health Sciences, Walter Sisulu University, Cecilia Makiwane Hospital, East London Hospital Complex, East London, South Africa
| | - Anthony Idowu Ajayi
- Department of Sociology, Faculty of Social Science and Humanities, University of Fort Hare, East London, South Africa
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11
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Amirabdollahian F, Haghighatdoost F. Anthropometric Indicators of Adiposity Related to Body Weight and Body Shape as Cardiometabolic Risk Predictors in British Young Adults: Superiority of Waist-to-Height Ratio. J Obes 2018; 2018:8370304. [PMID: 30515323 PMCID: PMC6236774 DOI: 10.1155/2018/8370304] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 09/07/2018] [Accepted: 10/02/2018] [Indexed: 02/06/2023] Open
Abstract
Frequently reported poor dietary habits of young adults increase their risk of metabolic syndrome (MetS). Excess adiposity is the most established predictor of MetS, and numerous anthropometric measures have been proposed as proxy indicators of adiposity. We aimed to assess prevalence of MetS in young adult population and to make comparison between weight- and shape-oriented measures of adiposity to identify the best index in association with measured body fat and as a risk predictor for MetS. Healthy males and females aged 18-25 years from the Northwest of England were recruited using convenience sampling (n=550). As part of the assessment of the overall health of young adults, the biochemical variables and adiposity measures BMI, waist circumference (WC), waist-to-height ratio (WHtR), waist-to-hip ratio (WHR), new BMI, Body Adiposity Index (BAI), Clinica Universidad de Navarra-Body Adiposity Estimator (CUN-BAE), and A Body Shape Index (ABSI) were assessed. Linear regression analysis was used to investigate the association between the proxy indices of adiposity and measured percentage body fat. The odds ratio with 95% confidence interval was used to investigate the relationship between cardiometabolic (CM) risk factors and proxy measures of adiposity. The discriminatory power of these measures for diagnosis of MetS was investigated using area under the receiver operating characteristic curve. Body weight-related indicators of adiposity, particularly CUN-BAE, had stronger association with measured body fat compared with body shape-related indices. In relation with MetS, body shape-related indices, particularly elevated WC and WHtR, had stronger associations with CM risk compared with body weight-related measures. Amongst all indices, the best predictor for CM risk was WHtR, while ABSI had the weakest correlation with body fat, MetS, and CM risk. Indices directly associated with WC and specifically WHtR had greater diagnostic power in detection of CM risk in young adults.
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Affiliation(s)
| | - Fahimeh Haghighatdoost
- Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
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12
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Nguyen KA, Peer N, de Villiers A, Mukasa B, Matsha TE, Mills EJ, Kengne AP. Optimal waist circumference threshold for diagnosing metabolic syndrome in African people living with HIV infection. PLoS One 2017; 12:e0183029. [PMID: 28886047 PMCID: PMC5590743 DOI: 10.1371/journal.pone.0183029] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Accepted: 07/30/2017] [Indexed: 12/17/2022] Open
Abstract
Background The applicability of the internationally advocated cut-off points of waist circumference (WC) derived from Caucasians to diagnose metabolic syndrome (MS) in HIV-infected Africans is unknown. This study aimed to determine the optimal WC cutoffs for MS diagnosis in HIV-infected people receiving care at public healthcare facilities in the Western Cape Province in South Africa. Methods Data from 748 randomly selected participants (591 women), with a median age of 38 years, were analysed. The Youden’s index and the top-left-point approaches were used to determine the optimal cutoffs of WC for predicting ≥2 non-adipose MS components. Results The two approaches generated the same WC cut-off point in women, 92 cm (sensitivity 64%, specificity 64%) but different cut-off points in men: 87 cm (sensitivity 48%, specificity 85%) based on the Younden’s index and 83 cm (sensitivity 59%, specificity 74%) by the top-left-point method. The advocated thresholds of 94 cm in men had low sensitivity (30%) but high specificity (92%) whereas 80 cm in women showed low specificity (32%) but high sensitivity (85%) for diagnosing MS in this sample. Most African-specific cut-off points performed well, with 90 cm providing acceptable performance in both men (sensitivity 43%, specificity 88%) and women (sensitivity 66%, specificity 59%). Conclusions This study underlines the sub-optimal performance of internationally recommended WC thresholds for MS diagnosis in HIV-infected Africans, and supports the need to revisit the guidelines on WC criterion in African population across the board. A single threshold of 90 cm for both genders would be a practical suggestion.
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Affiliation(s)
- Kim A. Nguyen
- Non-Communicable Diseases Research Unit, South African Medical Research Council, Cape Town, South Africa
- Department of Medicine, University of Cape Town, Cape Town, South Africa
- * E-mail:
| | - Nasheeta Peer
- Non-Communicable Diseases Research Unit, South African Medical Research Council, Cape Town, South Africa
- Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - Anniza de Villiers
- Non-Communicable Diseases Research Unit, South African Medical Research Council, Cape Town, South Africa
| | | | - Tandi E. Matsha
- Department of Biomedical Sciences, Faculty of Health and Wellness Science, Cape Peninsula University of Technology, Cape Town, South Africa
| | | | - Andre P. Kengne
- Non-Communicable Diseases Research Unit, South African Medical Research Council, Cape Town, South Africa
- Department of Medicine, University of Cape Town, Cape Town, South Africa
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13
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Lebbie A, Wadsworth R, Saidu J, Bangura C. Predictors of Hypertension in a Population of Undergraduate Students in Sierra Leone. Int J Hypertens 2017; 2017:8196362. [PMID: 28840040 PMCID: PMC5559978 DOI: 10.1155/2017/8196362] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Revised: 06/27/2017] [Accepted: 07/04/2017] [Indexed: 01/05/2023] Open
Abstract
We report on the first survey of hypertension in undergraduates in Sierra Leone. Levels of hypertension (12%) and obesity (4%) appear low compared to the general population but given the rapid increase of both and the expectation that many graduates will enter the formal employment sector and a sedentary lifestyle, there is still cause for concern. We measured their BMI (body mass index) and used a questionnaire to investigate demographic and lifestyle choices. In agreement with most authorities, we found that BMI and age were statistically significant predictors of systolic and diastolic blood pressure but that the explanatory power was low (r = 0.21 to 0.27). Men may be more sensitive than women to an increase in BMI on blood pressure (p < 0.1). We failed to find statistically significant relationships with ethnicity, religion, stress, course of study, levels of physical activity, diet, smoking, or consumption of caffeine and alcohol. Family history of hypertension, consumption of red palm oil, and self-diagnosed attacks of typhoid fever were close to conventional levels of significance (p < 0.1). We intend to use this as a baseline for longitudinal studies to assess risks and suggest appropriate public health action.
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Affiliation(s)
- Aiah Lebbie
- Department of Biological Sciences, Njala University, PMB, Freetown, Sierra Leone
| | - Richard Wadsworth
- Department of Biological Sciences, Njala University, PMB, Freetown, Sierra Leone
| | - Janette Saidu
- Institute of Food Technology, Nutrition & Consumer Studies, Njala University, PMB, Freetown, Sierra Leone
| | - Camilla Bangura
- Department of Biological Sciences, Njala University, PMB, Freetown, Sierra Leone
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14
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Bentley AR, Rotimi CN. Interethnic Differences in Serum Lipids and Implications for Cardiometabolic Disease Risk in African Ancestry Populations. Glob Heart 2017; 12:141-150. [PMID: 28528248 PMCID: PMC5582986 DOI: 10.1016/j.gheart.2017.01.011] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Accepted: 01/13/2017] [Indexed: 12/12/2022] Open
Abstract
African Americans generally have a healthier lipid profile (lower triglycerides and higher high-density lipoprotein cholesterol concentration) compared with those of other ethnicities. Paradoxically, African Americans do not experience a decreased risk of the cardiometabolic diseases that serum lipids are expected to predict. This review explores this mismatch between biomarker and disease among African ancestry individuals by investigating the presence of interethnic differences in the biological relationships underlying the serum lipids-disease association. This review also discusses the physiologic and genomic factors underlying these interethnic differences. Additionally, because of the importance of serum lipids in assessing disease risk, interethnic differences in serum lipids have implications for identifying African ancestry individuals at risk of cardiometabolic disease. Where possible, data from Africa is included, to further elucidate these ancestral differences in the context of a different environmental background.
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Affiliation(s)
- Amy R Bentley
- Center for Research on Genomics and Global Health, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
| | - Charles N Rotimi
- Center for Research on Genomics and Global Health, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA.
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15
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Krishnadath ISK, Toelsie JR, Hofman A, Jaddoe VWV. Ethnic disparities in the prevalence of metabolic syndrome and its risk factors in the Suriname Health Study: a cross-sectional population study. BMJ Open 2016; 6:e013183. [PMID: 27927663 PMCID: PMC5168639 DOI: 10.1136/bmjopen-2016-013183] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND The metabolic syndrome (MetS) indicates increased risk for cardiovascular disease and type 2 diabetes. We estimated the overall and ethnic-specific prevalence of MetS and explored the associations of risk factors with MetS among Amerindian, Creole, Hindustani, Javanese, Maroon and Mixed ethnic groups. METHOD We used the 2009 Joint Interim Statement (JIS) to define MetS in a subgroup of 2946 participants of the Suriname Health Study, a national survey designed according to the WHO Steps guidelines. The prevalences of MetS and its components were determined for all ethnicities. Hierarchical logistic regressions were used to determine the associations of ethnicity, sex, age, marital status, educational level, income status, employment, smoking status, residence, physical activity, fruit and vegetable intake with MetS. RESULTS The overall estimated prevalence of MetS was 39.2%. From MetS components, central obesity and low high-density lipoprotein cholesterol (HDL-C) had the highest prevalences. The prevalence of MetS was highest for the Hindustanis (52.7%) and lowest for Maroons (24.2%). The analyses showed that in the overall population sex (women: OR 1.4; 95% CI 1.2 to 1.6), age (OR 5.5 CI 4.3 to 7.2), education (OR 0.7 CI 0.6 to 0.9), living area (OR 0.6 CI 0.5 to 0.8), income (OR 0.7 CI 0.5 to 0.9) and marital status (OR 1.3 CI 1.1 to 1.6) were associated with MetS. Variations observed in the associations of the risk factors with MetS in the ethnic groups did not materially influence the associations of ethnicities with MetS. CONCLUSIONS The prevalence of MetS was high and varied widely among ethnicities. Overall, central obesity and low HDL-C contributed most to MetS. Further studies are needed to assess the prospective associations of risk factors with MetS in different ethnic groups.
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Affiliation(s)
- Ingrid S K Krishnadath
- Department of Public Health, Faculty of Medical Sciences, Anton de Kom University of Suriname, Paramaribo, Suriname
| | - Jerry R Toelsie
- Department of Physiology, Faculty of Medical Sciences, Anton de Kom University of Suriname, Paramaribo, Suriname
| | - Albert Hofman
- Department of Epidemiology, Erasmus MC University Medical Center, Rotterdam, The Netherlands
| | - Vincent W V Jaddoe
- Department of Epidemiology, Erasmus MC University Medical Center, Rotterdam, The Netherlands
- Department of Pediatrics, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
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16
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Investigating the differences of body mass index and waist circumference in the follow-up assessment of patients to cardiac rehabilitation with acute coronary syndrome. AUSTRALASIAN PHYSICAL & ENGINEERING SCIENCES IN MEDICINE 2016; 39:1007-1027. [PMID: 27832460 DOI: 10.1007/s13246-016-0471-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2016] [Accepted: 08/08/2016] [Indexed: 02/07/2023]
Abstract
Obesity management is a key point during cardiac rehabilitation. The effect of new index, waist circumference (WC), in the obesity management of cardiac rehabilitation is not clear yet. Therefore, our study compared the WC index to the body mass index (BMI) in the evaluation of obesity management for the patients with acute coronary syndrome (ACS) in a well-designed cardiac rehabilitation program (CRP). Totally 61 patients were enrolled into our study between October 2013 and January 2014 in our hospital. All these patients were requested to participate in the CRP actively for 6 months. We collected the BMI, WC, vital signs, fasting blood levels, the results from a sub-maximal exercise treadmill test (ETT) and ultrasonic cardiogram (UCG) through a follow-up visit conducted every 1, 3, and 6 months. We used two-tailed Pearson's test and linear regression to analyze the data from our experiment. Our results show that the grouping of obese individuals based on the WC results in the WC being significantly associated with high-density lipoprotein cholesterol (HDL_C), inter-ventricular septal thickness at diastole (IVSd) and left ventricular posterior wall at diastole (LVPwd) after 1 and 3 months of the CRP (HDL_C after1 month of CRP: r = -0.292, P = 0.022; HDL_C after 3 months of CRP: r = -0.289, P = 0.024; IVSd after1 month of CRP: r = 0.451, P = 0.004; IVSd after 3 months of CRP: r = 0.304, P = 0.035; LVPwd after1 month of CRP: r = 0.468, P = 0.002; LVPwd after 3 months of CRP: r = 0.290, P = 0.045). However, no similar regular associations were found when obesity was stratified using the BMI. In other words, WC could be better than the BMI for reflecting the cardiac status. In conclusion, obesity management using WC can benefit the clinical evaluation, diagnosis, treatment, prevention, and prognosis of obese individuals of ACS when participating in the CRP.
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17
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Haregu TN, Oti S, Egondi T, Kyobutungi C. Measurement of overweight and obesity an urban slum setting in sub-Saharan Africa: a comparison of four anthropometric indices. BMC OBESITY 2016; 3:46. [PMID: 27833755 PMCID: PMC5100227 DOI: 10.1186/s40608-016-0126-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/12/2015] [Accepted: 10/29/2016] [Indexed: 02/07/2023]
Abstract
BACKGROUND As a result of both genetic and environmental factors, the body composition and topography of African populations are presumed to be different from western populations. Accordingly, globally accepted anthropometric markers may perform differently in African populations. In the era of rapid emergence of cardio-vascular diseases in sub-Saharan Africa, evidence about the performance of these markers in African settings is essential. The aim of this study was to investigate the inter-relationships among the four main anthropometric indices in measuring overweight and obesity in an urban poor African setting. METHODS Data from a cardiovascular disease risk factor assessment study in urban slums of Nairobi were analyzed. In the major study, data were collected from 5190 study participants. We considered four anthropometric markers of overweight and obesity: Body Mass Index, Waist Circumference, Waist to Hip Ratio, and Waist to Height Ratio. Pairwise correlations and kappa statistics were used to assess the relationship and agreement among these markers, respectively. Discordances between the indices were also analyzed. RESULTS The weighted prevalence of above normal body composition was 21.6 % by body mass index, 28.9 % by waist circumference, 45.5 % by waist to hip ratio, and 38.9 % by waist to height ratio. The overall inter-index correlation was +0.44. Waist to hip ratio generally had lower correlation with the other anthropometric indices. High level of discordance exists between body mass index and waist to hip ratio. Combining the four indices shows that 791 (16.1 %) respondents had above normal body composition in all four indices. Waist circumference better predicted hypertension and hyperglycemia while waist to height ratio better predicted hypercholesterolemia. CONCLUSIONS There exists a moderate level of correlation and a remarkable level of discordance among the four anthropometric indices with regard to the ascertainment of abnormal body composition in an urban slum setting in Africa. Waist circumference is a better predictor of cardio-metabolic risk.
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Affiliation(s)
- Tilahun Nigatu Haregu
- African Population and Health Research Center, P.O. Box 10787 code 00100, Nairobi, Kenya
| | - Samuel Oti
- International Development Research Centre, PO Box 62084-00200, Nairobi, Kenya
| | - Thaddaeus Egondi
- Drugs for Neglected Diseases initiative (DNDi) Africa, P.O. Box 21936-00505, Nairobi, Kenya
| | - Catherine Kyobutungi
- African Population and Health Research Center, P.O. Box 10787 code 00100, Nairobi, Kenya
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18
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Ethnic and sex-specific cut-off values for adult obesity in the Suriname Health Study. Obes Res Clin Pract 2016; 12:336-345. [PMID: 27720693 DOI: 10.1016/j.orcp.2016.09.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Revised: 08/25/2016] [Accepted: 09/26/2016] [Indexed: 11/22/2022]
Abstract
BACKGROUND Sex-specific body mass index (BMI) and waist circumference (WC) cut-off values have been validated for a limited number of ethnic groups. We aimed to derive these cut-off values for Amerindians, Creoles, Hindustani, Javanese, Maroons and Mixed living in Suriname. METHODS Data from individuals aged 20-65, in the Suriname Health Study was used to derive optimal cut-off values for BMI and WC for the prediction of hypertension (n=4910) and cardio-metabolic risk (n=2924). Results from the analysis with Receiver Operating Curves were calculated and compared these with recommended values. RESULTS The area under the ROC curve was consistently higher for WC compared to BMI among Creoles, Hindustani, Maroons and Mixed. The BMI cut-off values ranged from 24.8kg/m2 for Creole men and 26.9kg/m2 for Maroon women to 28.4kg/m2 and 30.2kg/m2 for Amerindian men and women, respectively. The WC cut-off values ranged from 80.7cm for Maroon men, 86.7cm for Javanese women to 90.8cm for Hindustani men and 95.7cm for Amerindian women. Optimal BMI cut-off values approximated Asian cut-off values from the World Health Organization whilst those of WC for men approximated and for women exceeded cut-off values from the International Diabetes Federation. CONCLUSION In most ethnic groups, we found better discriminatory power for WC compared to BMI in the relation with cardiovascular risk factors. The estimated BMI and WC cut-off values differed between ethnic groups. Further studies are needed to identify cut-off values related to the future risk of cardiovascular disease and mortality.
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19
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Mabchour AE, Delisle H, Vilgrain C, Larco P, Sodjinou R. [Abdominal obesity and other cardiometabolic risk biomarkers: influence of socioeconomic status and lifestyle on two African-origin population groups, Cotonou (Benin) and Port-au-Prince (Haiti)]. Pan Afr Med J 2016; 24:306. [PMID: 28154661 PMCID: PMC5267786 DOI: 10.11604/pamj.2016.24.306.8530] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Accepted: 07/04/2016] [Indexed: 12/22/2022] Open
Abstract
INTRODUCTION Increased cardio metabolic risk (CMR) in low- and middle-income countries is largely due to rapid nutrition transition. We conducted a study of two African-origin populations groups living, however, in widely different settings. It aimed to assess the relationship between lifestyle and CMR biomarkers as well as between abdominal obesity (AO) and other biomarkers. METHODS The study included 200 Benineses from Cotonou and 252 Haitians from Port-with-Prince (PAP) aged between 25 to 60 years and apparently in good health. AO was specifically defined as waist circumference ≥ 88cm (men) and ≥ 95 cm (women). Other most common biomarkers were: high total cholesterol/HDL cholesterol ratio, high blood pressure and insulin resistance by HOMA (Homeostasis Model Assessement). Socioeconomic status, diet, alcohol and tobacco were documented by questionnaire. Two dietary patterns emerged from cluster analysis, one traditional and the other "transitional" with increasing frequency of western foods. RESULTS Socioeconomic status, consumption of alcohol and nicotinism were associated with CMR, but not the food diagram. AO was associated with other CMR markers, with no marked effect of socioeconomic status and lifestyle variables. CONCLUSION Specific TT threshold values are confirmed as socioeconomic status and lifestyle have an impact on CMR, but not the relationship between AO and other CMR biomarkers.
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Affiliation(s)
- Asma El Mabchour
- TRANSNUT, Centre Collaborateur de l'OMS sur la Transition Nutritionnelle, Département de nutrition, Faculté de médecine, Université de Montréal, Québec, Canada
| | - Hélène Delisle
- TRANSNUT, Centre Collaborateur de l'OMS sur la Transition Nutritionnelle, Département de nutrition, Faculté de médecine, Université de Montréal, Québec, Canada
| | - Colette Vilgrain
- Fondation Haïtienne de Diabète et des Maladies Cardiovasculaires (FHADIMAC), Port-au-Prince, Haïti
| | - Phillipe Larco
- Fondation Haïtienne de Diabète et des Maladies Cardiovasculaires (FHADIMAC), Port-au-Prince, Haïti
| | - Roger Sodjinou
- Organisation Ouest Africaine de la Santé (OOAS), Bobo-Dioulasso, Burkina Faso
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20
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Krishnadath ISK, Nahar-van Venrooij LM, Jaddoe VWV, Toelsie JR. Ethnic differences in prediabetes and diabetes in the Suriname Health Study. BMJ Open Diabetes Res Care 2016; 4:e000186. [PMID: 27403324 PMCID: PMC4932318 DOI: 10.1136/bmjdrc-2015-000186] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Revised: 04/30/2016] [Accepted: 06/03/2016] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Diabetes is increasing worldwide, and information on risk factors to develop targeted interventions is limited. Therefore, we analyzed data of the Suriname Health Study to estimate the prevalence of prediabetes and diabetes. We also explored whether ethnic differences in prediabetes or diabetes risk could be explained by biological, demographic, lifestyle, anthropometric, and metabolic risk factors. METHOD The study was designed according to the WHO Steps guidelines. Fasting blood glucose levels were measured in 3393 respondents, aged 15-65 years, from an Amerindian, Creole, Hindustani, Javanese, Maroon or Mixed ethnic background. Prediabetes was defined by fasting blood glucose levels between 6.1 and 7.0 mmol/L and diabetes by fasting blood glucose levels ≥7.0 mmol/L or 'self-reported diabetes medication use.' For all ethnicities, we analyzed sex, age, marital status, educational level, income status, employment, smoking status, residence, physical activity, body mass index, waist circumference, hypertension, and the levels of triglyceride, total cholesterol, high-density lipoprotein-cholesterol and low-density lipoprotein-cholesterol. RESULTS The prevalence of prediabetes was 7.4%, while that of diabetes was 13 0%. From these diabetes cases, 39.6% were not diagnosed previously. No ethnic differences were observed in the prevalence of prediabetes. For diabetes, Hindustanis (23.3%) had twice the prevalence compared to other ethnic groups (4.7-14.2%). The associations of the risk factors with prediabetes or diabetes varied among the ethnic groups. The differences in the associations of ethnic groups with prediabetes or diabetes were partly explained by these risk factors. CONCLUSIONS The prevalence of diabetes in Suriname is high and most elevated in Hindustanis. The observed variations in risk factors among ethnic groups might explain the ethnic differences between these groups, but follow-up studies are needed to explore this in more depth.
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Affiliation(s)
- Ingrid S K Krishnadath
- Department of Public Health, Faculty of Medical Sciences , Anton de Kom University of Suriname , Paramaribo , Suriname
| | - Lenny M Nahar-van Venrooij
- Department of Public Health, Faculty of Medical Sciences , Anton de Kom University of Suriname , Paramaribo , Suriname
| | - Vincent W V Jaddoe
- Department of Epidemiology, Erasmus University Medical Center, Rotterdam, The Netherlands; Department of Pediatrics, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - Jerry R Toelsie
- Department of Physiology, Faculty of Medical Sciences , Anton de Kom University of Suriname , Paramaribo , Suriname
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