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Sekome K, Gómez-Olivé FX, Sherar LB, Esliger DW, Myezwa H. Sociocultural perceptions of physical activity and dietary habits for hypertension control: voices from adults in a rural sub-district of South Africa. BMC Public Health 2024; 24:2194. [PMID: 39138450 PMCID: PMC11320885 DOI: 10.1186/s12889-024-19320-0] [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: 08/14/2023] [Accepted: 07/01/2024] [Indexed: 08/15/2024] Open
Abstract
BACKGROUND Over half of adults from rural South Africa are hypertensive. Apart from pharmaceutical treatment, lifestyle changes such as increasing physical activity and reducing dietary salt have been strongly advocated for the control of hypertension. However, the control rates of hypertension for adults in rural South Africa are low. In this paper we explore whether this is due to the recommended lifestyle intervention not aligning with the individual's socio-cultural determinants of behaviour change. AIM To explore the social and cultural beliefs, perceptions and practices regarding physical activity and diet as a hypertension control intervention on hypertensive adults living in a rural sub-district in South Africa. METHODS Nine focus group discussions were conducted with hypertensive adults aged 40 years and above from Bushbuckridge sub-district in Mpumalanga Province of South Africa using a semi-structured interview guide. Each session began with introductions of the discussion theme followed by a short discussion on what the participants know about hypertension and the normal blood pressure readings. Physical activity and dietary habits were then introduced as the main subject of discussion. Probing questions were used to get more insight on a specific topic. A thematic analysis approach was used to generate codes, categories, and themes. A manual approach to data analysis was chosen and data obtained through transcripts were analysed inductively. FINDINGS Participants had a lack of knowledge about blood pressure normal values. Perceived causes of hypertension were alluded to psychosocial factors such as family and emotional-related issues. Physical activity practices were influenced by family and community members' attitudes and gender roles. Factors which influenced dietary practices mainly involved affordability and availability of food. To control their hypertension, participants recommend eating certain foods, emotional control, taking medication, exercising, praying, correct food preparation, and performing house chores. CONCLUSION Lifestyle interventions to control hypertension for adults in a rural South African setting using physical activity promotion and dietary control must consider the beliefs related to hypertension control of this population.
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Affiliation(s)
- Kganetso Sekome
- Department of physiotherapy, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, 7 York Road, Johannesburg, 2193, South Africa.
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, South Africa.
| | - Francesc Xavier Gómez-Olivé
- MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Lauren B Sherar
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, South Africa
| | - Dale W Esliger
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, South Africa
| | - Hellen Myezwa
- School of Therapeutic Science, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
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Mupfuti R, Kabudula C, Francis J. The Association Between Alcohol Use and Chronic Diseases' Treatment Outcomes Among Adults Aged 40 Years and Above in Rural South Africa. RESEARCH SQUARE 2024:rs.3.rs-3385716. [PMID: 38463992 PMCID: PMC10925412 DOI: 10.21203/rs.3.rs-3385716/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
Chronic diseases are significant problems in South Africa. Chronic diseases' treatment outcomes are critical to the reduction of morbidity and mortality. There is limited data in South Africa on alcohol use and treatment outcomes of chronic diseases in older people. We analysed data from wave 1 of the Health and Ageing in Africa-a longitudinal Study in an INDEPTH community (HAALSI) study. We performed descriptive analysis to determine the prevalence of optimal chronic diseases' treatment outcomes (suppressed HIV viral load, normal blood pressure and normal blood sugar) and applied multivariate modified Poisson regression to determine the association between alcohol use and chronic diseases' treatment outcomes. The prevalence of optimal treatment outcomes were 87.4% for HIV, 42.7% for hypertension, 53.6% for diabetes mellitus and 52.4% for multimorbidity. Alcohol use did not negatively impact the treatment outcomes for HIV (aRR=1.00, 95%CI:0.93-1.09), hypertension (aRR=0.88, 95%CI:0.68-1.14), diabetes mellitus (aRR=0.73, 95%CI:0.44-1.22), and multimorbidity (aRR=1.00, 95%CI:0.93-1.09). Alcohol use was not significantly associated with treatment outcomes possibly due to underreporting of alcohol use. There is need to incorporate objective alcohol measurements in chronic diseases care settings. Furthermore, there is urgent need to strengthen the management of hypertension and diabetes, by adopting the strategies deployed for HIV management.
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Sekome K, Gómez-Olivé FX, Sherar LB, Esliger DW, Myezwa H. Feasibility and acceptability of a contextualized physical activity and diet intervention for the control of hypertension in adults from a rural subdistrict: a study protocol (HYPHEN). Pilot Feasibility Stud 2024; 10:22. [PMID: 38308346 PMCID: PMC10837970 DOI: 10.1186/s40814-024-01456-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 01/22/2024] [Indexed: 02/04/2024] Open
Abstract
INTRODUCTION In rural and remote South Africa, most strokes and ischaemic heart diseases are as a consequence of hypertension, which is a modifiable risk factor. The widely recommended therapeutic approaches to control hypertension are through physical activity and diet modifications. However, there is a lack of culturally sensitive community-based, lifestyle interventions to control hypertension among rural African adult populations. We designed an intervention which recommends adjusting daily routine physical activity and dietary behaviour of adults with hypertension. This study aims to evaluate the feasibility and acceptability of HYPHEN in a rural community setting. METHODS We aim to recruit 30 adult participants with a self-report hypertension diagnosis. A one-arm, prospective design will be used to assess the feasibility and acceptability of recruitment, uptake, engagement, and completion of the 10-week intervention. Recruitment rates will be assessed at week 0. Intervention uptake, engagement, and adherence to the intervention will be assessed weekly via telephone. Blood pressure, body mass index, waist-hip ratio, urinary sodium, accelerometer-measured physical activity, and 24-h diet recall will be assessed at baseline and at 10 weeks. Qualitative semi-structured interviews will be conducted at 10 weeks to explore feasibility and acceptability. DISCUSSION This study offers a person-centred, sociocultural approach to hypertension control through adaptations to physical activity and dietary intake. This study will determine whether HYPHEN is feasible and acceptable and will inform changes to the protocol/focus that could be tested in a full trial. TRIAL REGISTRATION NUMBER PACTR202306662753321.
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Affiliation(s)
- Kganetso Sekome
- Department of Physiotherapy, Faculty of Health Sciences, School of Therapeutic Sciences, University of the Witwatersrand, Johannesburg, 2193, South Africa.
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK.
| | - Francesc Xavier Gómez-Olivé
- MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), Faculty of Health Sciences, School of Public Health, University of the Witwatersrand, Johannesburg, South Africa
| | - Lauren B Sherar
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK
| | - Dale W Esliger
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK
| | - Hellen Myezwa
- Faculty of Health Sciences, School of Therapeutic Science, University of the Witwatersrand, Johannesburg, South Africa
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Moonaisur N, Marx‐Pienaar N, de Kock HL. Plant-based meat alternatives in South Africa: An analysis of products on supermarket shelves. Food Sci Nutr 2024; 12:627-637. [PMID: 38268893 PMCID: PMC10804093 DOI: 10.1002/fsn3.3765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 09/19/2023] [Accepted: 09/27/2023] [Indexed: 01/26/2024] Open
Abstract
All over the world, the development of products that resemble meat but contain predominantly plant-sourced ingredients is a prime focus. Meat obtained by rearing animals is associated with a range of important issues related to the sustainability of the planet. Locally, the topic is trending and the cause of various debates among industry role players. This study aimed to explore and analyze plant-based meat alternative (PBMA) products in the South African retail market as well as review internal (nutritional content and ingredients) and external (country of origin, cost/kg, and label claims) factors of the products. This study also compared the nutritional content of PBMA and comparative meat products. Seventy-eight PBMA products were included: plant-based sausages (n = 23), burgers (n = 31), chicken-style (n = 11), mince (n = 8), and an "other" (n = 5) category providing for a variety of product lines. Information from product packaging (total fat, saturated fat, fiber, protein, sugar, sodium, carbohydrates, and energy density) was extracted for all PBMA (n = 78) and comparative meat product lines (n = 28). Meat products tended to be comparatively higher in saturated fat, while PBMAs were higher in carbohydrate, sugar, and dietary fiber content. Sodium content of plant-based mince was approximately five times higher than beef mince. On-pack claims for PBMAs included vegetarian/vegan/plant based (80% of products), high in/source of protein (48%), containing no genetically modified organisms (GMOs; 16%), and gluten free (26%). The plant protein trend has prompted innovation in PBMAs, however, wide nutrient ranges and higher sodium levels highlight the importance of nutrition guidelines for their development to ensure healthier product offerings to consumers. The findings of this study may assist in exploration of consumers' preferences/attitudes or engagement with PBMA products, which could, in turn, guide new product development within the category. However, information about possible barriers, drivers, consumer expectations, and attitudes toward these products is also required.
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Affiliation(s)
- Nishanie Moonaisur
- Department of Consumer and Food SciencesUniversity of PretoriaPretoriaSouth Africa
| | - Nadene Marx‐Pienaar
- Department of Consumer and Food SciencesUniversity of PretoriaPretoriaSouth Africa
| | - Henrietta L. de Kock
- Department of Consumer and Food SciencesUniversity of PretoriaPretoriaSouth Africa
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Madela SLM, Harriman NW, Sewpaul R, Mbewu AD, Williams DR, Sifunda S, Manyaapelo T, Nyembezi A, Reddy SP. Area-level deprivation and individual-level socioeconomic correlates of the diabetes care cascade among black south africans in uMgungundlovu, KwaZulu-Natal, South Africa. PLoS One 2023; 18:e0293250. [PMID: 38079422 PMCID: PMC10712896 DOI: 10.1371/journal.pone.0293250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 10/09/2023] [Indexed: 12/18/2023] Open
Abstract
South Africa is experiencing a rapidly growing diabetes epidemic that threatens its healthcare system. Research on the determinants of diabetes in South Africa receives considerable attention due to the lifestyle changes accompanying South Africa's rapid urbanization since the fall of Apartheid. However, few studies have investigated how segments of the Black South African population, who continue to endure Apartheid's institutional discriminatory legacy, experience this transition. This paper explores the association between individual and area-level socioeconomic status and diabetes prevalence, awareness, treatment, and control within a sample of Black South Africans aged 45 years or older in three municipalities in KwaZulu-Natal. Cross-sectional data were collected on 3,685 participants from February 2017 to February 2018. Individual-level socioeconomic status was assessed with employment status and educational attainment. Area-level deprivation was measured using the most recent South African Multidimensional Poverty Index scores. Covariates included age, sex, BMI, and hypertension diagnosis. The prevalence of diabetes was 23% (n = 830). Of those, 769 were aware of their diagnosis, 629 were receiving treatment, and 404 had their diabetes controlled. Compared to those with no formal education, Black South Africans with some high school education had increased diabetes prevalence, and those who had completed high school had lower prevalence of treatment receipt. Employment status was negatively associated with diabetes prevalence. Black South Africans living in more deprived wards had lower diabetes prevalence, and those residing in wards that became more deprived from 2001 to 2011 had a higher prevalence diabetes, as well as diabetic control. Results from this study can assist policymakers and practitioners in identifying modifiable risk factors for diabetes among Black South Africans to intervene on. Potential community-based interventions include those focused on patient empowerment and linkages to care. Such interventions should act in concert with policy changes, such as expanding the existing sugar-sweetened beverage tax.
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Affiliation(s)
| | - Nigel Walsh Harriman
- Social and Behavioral Sciences Department, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, United States of America
| | - Ronel Sewpaul
- Human and Social Capabilities Division, Human Sciences Research Council, Cape Town, South Africa
| | - Anthony David Mbewu
- Department of Internal Medicine, Sefako Makgatho Health Sciences University, Ga-Rankuwa, South Africa
| | - David R Williams
- Social and Behavioral Sciences Department, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, United States of America
- Department of African and American Studies, Harvard University, Cambridge, Massachusetts, United States of America
| | - Sibusiso Sifunda
- Human and Social Capabilities Division, Human Sciences Research Council, Cape Town, South Africa
| | | | - Anam Nyembezi
- School of Public Health, University of the Western Cape, Cape Town, South Africa
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Ferro EG, Abrahams-Gessel S, Kapaon D, Houle B, Toit JD, Wagner RG, Gómez-Olivé FX, Wade AN, Kabudula CW, Tollman S, Gaziano TA. Significant Improvement in Blood Pressure Levels Among Older Adults With Hypertension in Rural South Africa. Hypertension 2023; 80:1614-1623. [PMID: 36752095 PMCID: PMC10363191 DOI: 10.1161/hypertensionaha.122.20401] [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: 11/21/2022] [Accepted: 01/02/2023] [Indexed: 02/09/2023]
Abstract
BACKGROUND Sub-Saharan Africa is undergoing an epidemiologic transition from infectious diseases to cardiovascular diseases. From 2014 to 2019, sociodemographic surveillance was performed in a large cohort in rural South Africa. METHODS Disease prevalence and incidence were calculated using inverse probability weights. Poisson regression was used to identify disease predictors. The percentage of individuals with controlled (<140/90 mm Hg) versus uncontrolled hypertension was compared between 2014 and 2019. RESULTS Compared with 2014 (n=5059), study participants in 2019 (n=4176) had similar rates of obesity (mean body mass index, 27.5±10.0 versus 27.0±6.5) but higher smoking (9.1% versus 11.5%) and diabetes (11.1% versus 13.9%). There was no significant increase in hypertension prevalence (58.4% versus 59.8%; age adjusted, 64.3% versus 63.3%), and there was a significant reduction in mean systolic blood pressure (138.0 versus 128.5 mm Hg; P<0.001). Among hypertensive individuals who reported medication use in 2014 and 2019 (n=796), the proportion with controlled hypertension on medication increased from 44.5% to 62.3%. Hypertension incidence was 6.2 per 100 person-years, and age was the only independent predictor. Among normotensive individuals in 2014 (n=2257), 15.2% developed hypertension by 2019, with the majority already controlled on medications by 2019. CONCLUSIONS The hypertension prevalence and incidence are plateauing in this aging cohort. There was a statistically and clinically significant decline in mean blood pressure and a substantial increase in individuals with controlled hypertension on medication. The prevalence of cardiometabolic risk factors did not decrease over time, suggesting that the blood pressure decrease is likely due to increased medication access and adherence, promoted by local health systems.
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Affiliation(s)
- Enrico G. Ferro
- Division of Cardiovascular Medicine, Beth Israel Deaconess Medical Center, Boston, MA 02115, USA
| | - Shafika Abrahams-Gessel
- Center for Health Decision Science, Harvard T.H. Chan School of Public Health, 718 Huntington Ave., Boston, MA 02115, USA
| | - David Kapaon
- Center for Health Decision Science, Harvard T.H. Chan School of Public Health, 718 Huntington Ave., Boston, MA 02115, USA
| | - Brian Houle
- School of Demography, The Australian National University, Canberra, Australian Capital Territory, Australia
- Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Jacques Du Toit
- Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Ryan G. Wagner
- Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - F. Xavier Gómez-Olivé
- Center for Health Decision Science, Harvard T.H. Chan School of Public Health, 718 Huntington Ave., Boston, MA 02115, USA
- Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Alisha N. Wade
- Center for Health Decision Science, Harvard T.H. Chan School of Public Health, 718 Huntington Ave., Boston, MA 02115, USA
- Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Chodziwadziwa W Kabudula
- Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
- Department of Population Health, London School of Hygiene and Tropical Medicine, London, UK
| | - Stephen Tollman
- Center for Health Decision Science, Harvard T.H. Chan School of Public Health, 718 Huntington Ave., Boston, MA 02115, USA
- Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Thomas A. Gaziano
- Center for Health Decision Science, Harvard T.H. Chan School of Public Health, 718 Huntington Ave., Boston, MA 02115, USA
- Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
- Department of Cardiovascular Medicine, Brigham & Women’s Hospital, Boston, MA 02115, USA
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Abrahams-Gessel S, Gómez-Olivé FX, Tollman S, Wade AN, Du Toit JD, Ferro EG, Kabudula CW, Gaziano TA. Improvements in Hypertension Control in the Rural Longitudinal HAALSI Cohort of South African Adults Aged 40 and Older, From 2014 to 2019. Am J Hypertens 2023; 36:324-332. [PMID: 36857463 PMCID: PMC10200554 DOI: 10.1093/ajh/hpad018] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 01/26/2023] [Accepted: 02/28/2023] [Indexed: 03/03/2023] Open
Abstract
BACKGROUND Over half of the South African adults aged 45 years and older have hypertension but its effective management along the treatment cascade (awareness, treatment, and control) remains poorly understood. METHODS We compared the prevalence of all stages of the hypertension treatment cascade in the rural HAALSI cohort of older adults at baseline and after four years of follow-up using household surveys and blood pressure data. Hypertension was a mean systolic blood pressure >140 mm Hg or diastolic pressure >90 mm Hg, or current use of anti-hypertension medication. Control was a mean blood pressure <140/90 mm Hg. The effects of sex and age on the treatment cascade at follow-up were assessed. Multivariate Poisson regression models were used to estimate prevalence ratios along the treatment cascade at follow-up. RESULTS Prevalence along the treatment cascade increased from baseline (B) to follow-up (F): awareness (64.4% vs. 83.6%), treatment (49.7% vs. 73.9%), and control (22.8% vs. 41.3%). At both time points, women had higher levels of awareness (B: 70.5% vs. 56.3%; F: 88.1% vs. 76.7%), treatment (B: 55.9% vs. 41.55; F: 79.9% vs. 64.7%), and control (B: 26.5% vs. 17.9%; F: 44.8% vs. 35.7%). Prevalence along the cascade increased linearly with age for everyone. Predictors of awareness included being female, elderly, or visiting a primary health clinic three times in the previous 3 months, and the latter two also predicted hypertension control. CONCLUSIONS There were significant improvements in awareness, treatment, and control of hypertension from baseline to follow-up and women fared better at all stages, at both time points.
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Affiliation(s)
- Shafika Abrahams-Gessel
- Center for Health Decision Science, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - F Xavier Gómez-Olivé
- Harvard Center for Population and Development Studies, Harvard University, Cambridge, Massachusetts, USA
- Medical Research Council/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), University of the Witwatersrand, Johannesburg, South Africa
- Africa Wits-INDEPTH Partnership for Genomic Studies, University of the Witwatersrand, Johannesburg, South Africa
| | - Stephen Tollman
- Medical Research Council/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), University of the Witwatersrand, Johannesburg, South Africa
- Africa Wits-INDEPTH Partnership for Genomic Studies, University of the Witwatersrand, Johannesburg, South Africa
- Department of Epidemiology and Global Health, Umeå University, Umeå, Sweden
| | - Alisha N Wade
- Medical Research Council/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), University of the Witwatersrand, Johannesburg, South Africa
- Africa Wits-INDEPTH Partnership for Genomic Studies, University of the Witwatersrand, Johannesburg, South Africa
| | - Jacques D Du Toit
- Medical Research Council/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), University of the Witwatersrand, Johannesburg, South Africa
| | - Enrico G Ferro
- Division of Cardiovascular Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
| | - Chodziwadziwa W Kabudula
- Medical Research Council/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), University of the Witwatersrand, Johannesburg, South Africa
- Africa Wits-INDEPTH Partnership for Genomic Studies, University of the Witwatersrand, Johannesburg, South Africa
| | - Thomas A Gaziano
- Center for Health Decision Science, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
- Harvard Center for Population and Development Studies, Harvard University, Cambridge, Massachusetts, USA
- Cardiovascular Medicine Division, Brigham & Women’s Hospital, Boston, Massachusetts, USA
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Teshome DF, Balcha SA, Ayele TA, Atnafu A, Gelaye KA. Undiagnosed hypertension and its determinants among hypertensive patients in rural districts of northwest Ethiopia: a mediation analysis. BMC Health Serv Res 2023; 23:222. [PMID: 36882833 PMCID: PMC9990316 DOI: 10.1186/s12913-023-09212-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 02/23/2023] [Indexed: 03/09/2023] Open
Abstract
BACKGROUND Early detection of hypertension is associated with improved blood pressure control and a reduced risk of cardiovascular diseases. However, in rural areas of Ethiopia, evidence is scarce where access to healthcare services is low. This study aimed to estimate the proportion of undiagnosed hypertension and identify its determinants and mediators among patients with hypertension in rural northwest Ethiopia. METHODS A community-based cross-sectional study was conducted from September to November 2020. A three-stage sampling technique was used to select a total of 2436 study participants. Blood pressure was measured using an aneroid sphygmomanometer two times, 30 min apart. A validated tool was used to assess participants' beliefs and knowledge of hypertension. The proportion, determinants, and mediators of undiagnosed hypertension were determined among patients with hypertension. The regression-based approach used to calculate the direct and indirect effects of determinants of undiagnosed hypertension. Joint significance testing was used to determine the significance of the indirect effect. RESULTS The proportion of undiagnosed hypertension was 84.0% (95% CI: 81.4-86.7%). Participants aged 25-34 years (AOR = 6.03; 95% CI: 2.11, 17.29), who drank alcohol (AOR = 2.40; 95% CI: 1.37, 4.20), were overweight (AOR = 0.41; 95% CI: 0.18, 0.98), had a family history of hypertension (AOR = 0.32; 95% CI: 0.20, 0.53), and had comorbidities (AOR = 0.28; 95% CI: 0.15, 0.54) were significantly associated with undiagnosed hypertension. The mediation analysis revealed that hypertension health information mediated 64.1% and 68.2% of the effect of family history of hypertension and comorbidities on undiagnosed hypertension, respectively. Perceived susceptibility to hypertensive disease mediated 33.3% of the total effect of age on undiagnosed hypertension. Health facility visits also mediated the effect of alcohol drinking (14.2%) and comorbidities (12.3%) on undiagnosed hypertension. CONCLUSION A higher proportion of hypertensive patients remain undiagnosed. Being young, drinking alcohol, being overweight, having a family history of hypertension, and having comorbidities were significant factors. Hypertension health information, knowledge of hypertensive symptoms, and perceived susceptibility to hypertension were identified as important mediators. Public health interventions aimed at providing adequate hypertension health information, particularly to young adults and drinkers, could improve knowledge and perceived susceptibility to hypertensive disease and reduce the burden of undiagnosed hypertension.
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Affiliation(s)
- Destaw Fetene Teshome
- Department of Epidemiology and Biostatistics, Institute of Public Health, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia.
| | - Shitaye Alemu Balcha
- Department of Internal Medicine, School of Medicine, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
| | - Tadesse Awoke Ayele
- Department of Epidemiology and Biostatistics, Institute of Public Health, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
| | - Asmamaw Atnafu
- Department of Health Systems and Policy, Institute of Public Health, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
| | - Kassahun Alemu Gelaye
- Department of Epidemiology and Biostatistics, Institute of Public Health, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
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Madela S, Harriman NW, Sewpaul R, Mbewu AD, Williams DR, Sifunda S, Manyaapelo T, Nyembezi A, Reddy SP. Individual and area-level socioeconomic correlates of hypertension prevalence, awareness, treatment, and control in uMgungundlovu, KwaZulu-Natal, South Africa. BMC Public Health 2023; 23:417. [PMID: 36864433 PMCID: PMC9979474 DOI: 10.1186/s12889-023-15247-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 02/09/2023] [Indexed: 03/04/2023] Open
Abstract
BACKGROUND Hypertension is the second leading risk factor for death in South Africa, and rates have steadily increased since the end of Apartheid. Research on the determinants of hypertension in South Africa has received considerable attention due to South Africa's rapid urbanization and epidemiological transition. However, scant work has been conducted to investigate how various segments of the Black South African population experience this transition. Identifying the correlates of hypertension in this population is critical to the development of policies and targeted interventions to strengthen equitable public health efforts. METHODS This analysis explores the relationship between individual and area-level socioeconomic status and hypertension prevalence, awareness, treatment, and control within a sample of 7,303 Black South Africans in three municipalities of the uMgungundlovu district in KwaZulu-Natal province: the Msunduzi, uMshwathi, and Mkhambathini. Cross-sectional data were collected on participants from February 2017 to February 2018. Individual-level socioeconomic status was measured by employment status and educational attainment. Ward-level area deprivation was operationalized by the most recent (2011 and 2001) South African Multidimensional Poverty Index scores. Covariates included age, sex, BMI, and diabetes diagnosis. RESULTS The prevalence of hypertension in the sample was 44.4% (n = 3,240). Of those, 2,324 were aware of their diagnosis, 1,928 were receiving treatment, and 1,051 had their hypertension controlled. Educational attainment was negatively associated with hypertension prevalence and positively associated with its control. Employment status was negatively associated with hypertension control. Black South Africans living in more deprived wards had higher odds of being hypertensive and lower odds of having their hypertension controlled. Those residing in wards that became more deprived from 2001 to 2011 had higher odds of being aware of their hypertension, yet lower odds of receiving treatment for it. CONCLUSIONS Results from this study can assist policymakers and practitioners in identifying groups within the Black South African population that should be prioritized for public health interventions. Black South Africans who have and continue to face barriers to care, including those with low educational attainment or living in deprived wards had worse hypertension outcomes. Potential interventions include community-based programs that deliver medication to households, workplaces, or community centers.
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Affiliation(s)
- Slm Madela
- Expectra Health Solutions, Dundee, South Africa
| | - N W Harriman
- Social and Behavioral Sciences Department, Harvard T.H. Chan School of Public Health, Boston, USA.
| | - R Sewpaul
- Human and Social Capabilities Division, Human Sciences Research Council, Pretoria, South Africa
| | - A D Mbewu
- Sefako Makgatho Health Sciences University, Ga-Rankuwa, South Africa
| | - D R Williams
- Social and Behavioral Sciences Department, Harvard T.H. Chan School of Public Health, Boston, USA.,African and African American Studies Department, Harvard University, Cambridge, USA
| | - S Sifunda
- Human and Social Capabilities Division, Human Sciences Research Council, Pretoria, South Africa
| | - T Manyaapelo
- Africa Health Research Institute, Somkhele, South Africa
| | - A Nyembezi
- University of the Western Cape, Cape Town, South Africa
| | - S P Reddy
- University of KwaZulu-Natal, Berea, South Africa
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Houle B, Kabudula CW, Tilstra AM, Mojola SA, Schatz E, Clark SJ, Angotti N, Gómez-Olivé FX, Menken J. Twin epidemics: the effects of HIV and systolic blood pressure on mortality risk in rural South Africa, 2010-2019. BMC Public Health 2022; 22:387. [PMID: 35209881 PMCID: PMC8866551 DOI: 10.1186/s12889-022-12791-z] [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] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Accepted: 02/14/2022] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Sub-Saharan African settings are experiencing dual epidemics of HIV and hypertension. We investigate effects of each condition on mortality and examine whether HIV and hypertension interact in determining mortality. METHODS Data come from the 2010 Ha Nakekela population-based survey of individuals ages 40 and older (1,802 women; 1,107 men) nested in the Agincourt Health and socio-Demographic Surveillance System in rural South Africa, which provides mortality follow-up from population surveillance until mid-2019. Using discrete-time event history models stratified by sex, we assessed differential mortality risks according to baseline measures of HIV infection, HIV-1 RNA viral load, and systolic blood pressure. RESULTS During the 8-year follow-up period, mortality was high (477 deaths). Survey weighted estimates are that 37% of men (mortality rate 987.53/100,000, 95% CI: 986.26 to 988.79) and 25% of women (mortality rate 937.28/100,000, 95% CI: 899.7 to 974.88) died. Over a quarter of participants were living with HIV (PLWH) at baseline, over 50% of whom had unsuppressed viral loads. The share of the population with a systolic blood pressure of 140mm Hg or higher increased from 24% at ages 40-59 to 50% at ages 75-plus and was generally higher for those not living with HIV compared to PLWH. Men and women with unsuppressed viral load had elevated mortality risks (men: adjusted odds ratio (aOR) 3.23, 95% CI: 2.21 to 4.71, women: aOR 2.05, 95% CI: 1.27 to 3.30). There was a weak, non-linear relationship between systolic blood pressure and higher mortality risk. We found no significant interaction between systolic blood pressure and HIV status for either men or women (p>0.05). CONCLUSIONS Our results indicate that HIV and elevated blood pressure are acting as separate, non-interacting epidemics affecting high proportions of the older adult population. PLWH with unsuppressed viral load were at higher mortality risk compared to those uninfected. Systolic blood pressure was a mortality risk factor independent of HIV status. As antiretroviral therapy becomes more widespread, further longitudinal follow-up is needed to understand how the dynamics of increased longevity and multimorbidity among people living with both HIV and high blood pressure, as well as the emergence of COVID-19, may alter these patterns.
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Affiliation(s)
- Brian Houle
- School of Demography, The Australian National University, Canberra, Australia.
- MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), Faculty of Health Sciences, School of Public Health, University of the Witwatersrand, Johannesburg, South Africa.
| | - Chodziwadziwa W Kabudula
- MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), Faculty of Health Sciences, School of Public Health, University of the Witwatersrand, Johannesburg, South Africa
| | - Andrea M Tilstra
- Nuffield College, University of Oxford, Oxford, UK
- Institute of Behavioral Science and Department of Sociology, University of Colorado Boulder, Boulder, USA
- Leverhulme Centre for Demographic Science, Department of Sociology, University of Oxford, Oxford, UK
| | - Sanyu A Mojola
- MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), Faculty of Health Sciences, School of Public Health, University of the Witwatersrand, Johannesburg, South Africa
- Department of Sociology, School of Public and International Affairs, and Office of Population Research, Princeton University, Princeton, USA
| | - Enid Schatz
- MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), Faculty of Health Sciences, School of Public Health, University of the Witwatersrand, Johannesburg, South Africa
- Department of Public Health, University of Missouri, Columbia, USA
| | - Samuel J Clark
- MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), Faculty of Health Sciences, School of Public Health, University of the Witwatersrand, Johannesburg, South Africa
- Department of Sociology, The Ohio State University, Columbus, USA
| | - Nicole Angotti
- MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), Faculty of Health Sciences, School of Public Health, University of the Witwatersrand, Johannesburg, South Africa
- Department of Sociology, American University, Washington, USA
| | - F Xavier Gómez-Olivé
- MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), Faculty of Health Sciences, School of Public Health, University of the Witwatersrand, Johannesburg, South Africa
| | - Jane Menken
- Institute of Behavioral Science and Department of Sociology, University of Colorado Boulder, Boulder, USA
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11
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Houle B, Gaziano TA, Angotti N, Mojola SA, Kabudula CW, Tollman SM, Gómez-Olivé FX. Hypertension incidence among middle-aged and older adults: findings from a 5-year prospective study in rural South Africa, 2010-2015. BMJ Open 2021; 11:e049621. [PMID: 34876423 PMCID: PMC8655592 DOI: 10.1136/bmjopen-2021-049621] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
OBJECTIVES There is a scarcity of longitudinal cohort studies in sub-Saharan Africa to understand the epidemiology of cardiovascular disease as a basis for intervention. We estimated incident hypertension and associated sociodemographic, health and behavioural risk factors in a population aged 40 years and older over a 5-year period. DESIGN We assessed the association between incident hypertension and sociodemographic, health and behavioural factors using Poisson regression. We adjusted for non-response in 2015 using inverse probability sampling weights from a logistic regression including sex and age at baseline. SETTING Rural South Africa. PARTICIPANTS We used a population-based cohort of normotensive adults in 2010 who were aged 40 years and older at retest in 2015. RESULTS Of 676 individuals completing baseline and 5-year follow-up, there were 193 incident cases of hypertension. The overall hypertension incidence rate was 8.374/100 person-years. In multivariable analyses, those who became hypertensive were more likely to be older, have a high waist circumference (incidence rate ratio (IRR): 1.557, 95% CI: 1.074 to 2.259) and be employed (IRR: 1.579, 95% CI: 1.071 to 2.329) at baseline. Being HIV positive and not on antiretroviral therapy at baseline was associated with lower risk of incident hypertension. CONCLUSIONS Over a 5-year period, 29% of respondents developed hypertension. Given the high burden of hypertension in South Africa, continued longitudinal follow-up is needed to understand the complex interplay of non-communicable and infectious diseases and their underlying and modifiable risk factors to inform public health prevention strategies and programmes.
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Affiliation(s)
- Brian Houle
- School of Demography, The Australian National University, Canberra, Australian Capital Territory, Australia
- MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Thomas A Gaziano
- Division of Cardiovascular Medicine, Brigham and Women's Hospital, Boston, Massachusetts, USA
- Harvard Medical School, Harvard University, Boston, Massachusetts, USA
| | - Nicole Angotti
- MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
- Department of Sociology, American University, Washington, District of Columbia, USA
| | - Sanyu A Mojola
- MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
- Department of Sociology, School of Public and International Affairs, and Office of Population Research, Princeton University, Princeton, New Jersey, USA
| | - Chodziwadziwa W Kabudula
- MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Stephen M Tollman
- MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
- INDEPTH Network, Accra, Ghana
- Centre for Global Health Research, Umea University, Umea, Sweden
| | - F Xavier Gómez-Olivé
- MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
- INDEPTH Network, Accra, Ghana
- Center for Population and Development Studies, Harvard University, Cambridge, Massachusetts, USA
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12
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Chikafu H, Chimbari M. Hypertension care cascade in the Ingwavuma rural community, uMkhanyakude District, KwaZulu-Natal province of South Africa. PeerJ 2021; 9:e12372. [PMID: 34824908 PMCID: PMC8590801 DOI: 10.7717/peerj.12372] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Accepted: 10/01/2021] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND Treatment and control of hypertension are associated with a substantial reduction in adverse cardiovascular disease outcomes. Although South Africa aims to reduce the burden of cardiovascular diseases, there is limited evidence on the hypertension care cascade (HCC) performance in rural areas where stroke and hypertension are high. This study estimated HCC performance and identified predictors of hypertension screening among adults in the Ingwavuma community of KwaZulu-Natal, South Africa. METHODS This was a cross-sectional study. Data were collected using the WHO STEPwise approach to surveillance (STEPS) questionnaire from 400 adult participants, excluding pregnant women and those with physical or cognitive impairments. Three hundred and ninety-three participants had complete data, and 131 had high blood pressure. We calculated progression rates for screening, diagnosis, treatment and control of hypertension from the sub-sample of participants with high blood pressure and assessed the bivariate association between HCC stages and participant characteristics and their effect sizes. We used binary and multivariable logistic regression to identify predictors of hypertension screening. RESULTS Eighty-eight per cent of participants reported prior screening for hypertension. However, only 53.5% of patients under pharmacological treatment for hypertension had controlled blood pressure. In bivariate regression, employed participants were 80.3% (COR = 0.197, 95% CI [0.042-0.921]) more likely to be screened. In multivariable regression, the likelihood of hypertension screening was 82.4% (AOR = 0.176, 95% CI [0.047-0.655]) lower among participants in a cohabiting union than single participants. Similarly, employed participants were 87.4% (AOR = 0.129, 95% CI [0.017-0.952]) less likely to be screened than their unemployed counterparts. CONCLUSIONS The considerable attrition from the HCC across socio-demographic categories indicates a need for community-wide interventions. Empowering health care workers for community-based health promotion and hypertension management through point-of-care diagnostic tools could improve HCC performance. Efforts to improve the HCC should also focus on social determinants of health, notably gender and formal educational attainment.
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Affiliation(s)
- Herbert Chikafu
- School of Nursing and Public Health, University of KwaZulu-Natal, Durban, KwaZulu-Natal, South Africa
| | - Moses Chimbari
- School of Nursing and Public Health, University of KwaZulu-Natal, Durban, KwaZulu-Natal, South Africa
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13
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Ferro EG, Abrahams-Gessel S, Jardim TV, Wagner R, Gomez-Olive FX, Wade AN, Peters F, Tollman S, Gaziano TA. Echocardiographic and Electrocardiographic Abnormalities Among Elderly Adults With Cardiovascular Disease in Rural South Africa. Circ Cardiovasc Qual Outcomes 2021; 14:e007847. [PMID: 34784231 PMCID: PMC8627257 DOI: 10.1161/circoutcomes.121.007847] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
BACKGROUND Sub-Saharan Africa is undergoing an epidemiological transition fueled by the interaction between infectious and cardiovascular diseases. Our cross-sectional study aimed to characterize the spectrum of abnormalities suggesting end-organ damage on ECG and transthoracic echocardiograms (TTE) among older adults with cardiovascular diseases in rural South Africa. METHODS The prevalence of ECG and TTE abnormalities was estimated; χ2 analyses and multivariable logistic regressions were performed to test their association with sex, hypertension, and other selected comorbidities. RESULTS Overall, 729 ECGs and 155 TTEs were completed, with 74 participants completing both. ECG evaluation showed high rates of left ventricular hypertrophy (LVH, 36.5%) and T wave abnormalities (13.6%). TTE evaluation showed high rates of concentric LVH (31.6%), with moderate-severe (56.8%) diastolic dysfunction. Participants with hypertension showed more cardiac remodeling on ECG by LVH (45.4% versus 22.1%, P<0.01), and TTE by concentric LVH (42.5% versus 8.2%, P<0.01) and increased left ventricular mass (58.5% versus 20.4%, P<0.0001). In multivariable logistic regression, systolic blood pressure remained significantly associated with LVH on ECG (adjusted odds ratio, 1.03 per mm Hg [95% CI, 1.03-1.04], P<0.0001) and increased left ventricular mass on TTE (adjusted odds ratio, 1.04 per mm Hg [95% CI, 1.01-1.06], P=0.001). Male participants (n=326, 40.2%) were more likely than females (n=484, 59.8%) to show ECG abnormalities like LVH (45% versus 30.8%, P<0.01), whereas females were more likely to show TTE abnormalities like concentric LVH (40.8% versus 13.5%, P<0.01) and increased left ventricular mass (58.4% versus 23.1%, P<0.0001). Similar results were confirmed in multivariable models. CONCLUSIONS Our findings suggest that cardiovascular diseases are widespread in rural South Africa, with a larger burden of hypertensive heart disease than previously appreciated, and define the severity of end-organ damage that is already underway. Local health systems must adapt to face the growing burden of hypertension, as suboptimal rates of hypertension diagnosis and treatment may dramatically increase the heart failure burden.
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Affiliation(s)
- Enrico G. Ferro
- Harvard Medical School, Boston, MA 02115, USA
- Department of Internal Medicine, Brigham & Women’s Hospital, 75 Francis Street, Boston, MA 02115, USA
| | - Shafika Abrahams-Gessel
- Center for Health Decision Science, Harvard T.H. Chan School of Public Health, 718 Huntington Ave., Boston, MA 02115, USA
| | - Thiago Veiga Jardim
- Center for Health Decision Science, Harvard T.H. Chan School of Public Health, 718 Huntington Ave., Boston, MA 02115, USA
- Medical School. Federal University of Goiás. 1ª Avenida, S/N. Setor Universitário, Goiânia, GO, Brazil
| | - Ryan Wagner
- Medical Research Council/Wits Rural Public Health and Health Transitions Research Unit, School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, 27 St. Andrew’s Road, Johannesburg, Parktown 2193, South Africa
- INDEPTH Network, Accra, Ghana
- Umeå Centre for Global Health Research, Division of Epidemiology and Global Health, Department of Public Health and Clinical Medicine, Umeå University, Umea, Sweden
| | - F. Xavier Gomez-Olive
- Medical Research Council/Wits Rural Public Health and Health Transitions Research Unit, School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, 27 St. Andrew’s Road, Johannesburg, Parktown 2193, South Africa
- INDEPTH Network, Accra, Ghana
- Harvard Center for Population and Development Studies, Harvard University, 9 Bow Street, Cambridge, MA 02138, USA
| | - Alisha N. Wade
- Medical Research Council/Wits Rural Public Health and Health Transitions Research Unit, School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, 27 St. Andrew’s Road, Johannesburg, Parktown 2193, South Africa
- School of Public Health, University of the Witwatersrand, Johannesburg, South Africa
| | - Ferande Peters
- Cardiovascular Pathophysiology and Genomics Unit, University of the Witwatersrand, Johannesburg, South Africa
| | - Stephen Tollman
- Medical Research Council/Wits Rural Public Health and Health Transitions Research Unit, School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, 27 St. Andrew’s Road, Johannesburg, Parktown 2193, South Africa
- INDEPTH Network, Accra, Ghana
- Umeå Centre for Global Health Research, Division of Epidemiology and Global Health, Department of Public Health and Clinical Medicine, Umeå University, Umea, Sweden
| | - Thomas A. Gaziano
- Center for Health Decision Science, Harvard T.H. Chan School of Public Health, 718 Huntington Ave., Boston, MA 02115, USA
- Medical Research Council/Wits Rural Public Health and Health Transitions Research Unit, School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, 27 St. Andrew’s Road, Johannesburg, Parktown 2193, South Africa
- Department of Cardiovascular Medicine, Brigham & Women’s Hospital, 75 Francis Street, Boston, MA 02115, USA
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14
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Volpi SS, Biduski D, Bellei EA, Tefili D, McCleary L, Alves ALS, De Marchi ACB. Using a mobile health app to improve patients' adherence to hypertension treatment: a non-randomized clinical trial. PeerJ 2021; 9:e11491. [PMID: 34123593 PMCID: PMC8166239 DOI: 10.7717/peerj.11491] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 04/28/2021] [Indexed: 12/17/2022] Open
Abstract
Poor adherence to hypertension treatment increases complications of the disease and is characterized by a lack of awareness and acceptance of ongoing treatment. Mobile health (mHealth) apps can optimize processes and facilitate access to health information by combining treatment methods with attractive solutions. In this study, we aimed at verifying the influence of using an mHealth app on patients' adherence to hypertension treatment, also examining how user experience toward the app influenced the outcomes. A total of 49 participants completed the study, men and women, diagnosed with hypertension and ongoing medical treatment. For 12 weeks, the control group continued with conventional monitoring, while the experimental group used an mHealth app. From the experimental group, at baseline, 8% were non-adherent, 64% were partial adherents and 28% were adherent to the treatment. Baseline in the control group indicated 4.2% non-adherents, 58.3% partial adherents, and 37.5% adherents. After follow-up, the experimental group had an increase to 92% adherent, 8% partially adherent, and 0% non-adherent (P < 0.001). In the control group, adherence after follow-up remained virtually the same (P ≥ 0.999). Results of user experience were substantially positive and indicate that the participants in the experimental group had a satisfactory perception of the app. In conclusion, this study suggests that using an mHealth app can empower patients to manage their own health and increase adherence to hypertension treatment, especially when the app provides a positive user experience.
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Affiliation(s)
- Simiane Salete Volpi
- School of Physical Education and Physiotherapy, University of Passo Fundo, Passo Fundo, RS, Brazil
| | - Daiana Biduski
- Institute of Exact Sciences and Geosciences, University of Passo Fundo, Passo Fundo, RS, Brazil
| | - Ericles Andrei Bellei
- Institute of Exact Sciences and Geosciences, University of Passo Fundo, Passo Fundo, RS, Brazil
| | - Danieli Tefili
- School of Physical Education and Physiotherapy, University of Passo Fundo, Passo Fundo, RS, Brazil
| | - Lynn McCleary
- Faculty of Applied Health Sciences, Brock University, St. Catharines, ON, Canada
| | | | - Ana Carolina Bertoletti De Marchi
- School of Physical Education and Physiotherapy, University of Passo Fundo, Passo Fundo, RS, Brazil.,Institute of Exact Sciences and Geosciences, University of Passo Fundo, Passo Fundo, RS, Brazil
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15
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De Wet-Billings N, Godongwana M. Exposure to Intimate Partner Violence and Hypertension Outcomes among Young Women in South Africa. Int J Hypertens 2021; 2021:5519356. [PMID: 33868725 PMCID: PMC8032517 DOI: 10.1155/2021/5519356] [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] [Received: 02/15/2021] [Accepted: 03/25/2021] [Indexed: 11/17/2022] Open
Abstract
Hypertension and intimate partner violence is affecting longevity and quality of life among women worldwide. In this study, intimate partner violence is identified as a risk factor for hypertension outcomes among young women in South Africa. Using a nationally representative sample of 216 (N) young women (15-34 years old) from the South African Demographic and Health Survey, this study uses cross-tabulations and logistic regression methods to identify the odds of hypertension outcomes. Results show that between 20 and 41% of 15-34-year-old women have hypertension. Further, 68% of women with hypertension experienced physical intimate partner violence. Finally, the odds of hypertension are increased if young women experience physical (OR: 4.07; CI: 1.04726-15.82438) or sexual (OR: 2.56; CI: 1.18198-5.55834) intimate partner violence. Efforts to reduce hypertension outcomes in the country should include intimate partner violence awareness and assistance.
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Affiliation(s)
- Nicole De Wet-Billings
- Demography and Population Studies, Schools of Social Sciences and Public Health, University of the Witwatersrand, Johannesburg, South Africa
| | - Motlatso Godongwana
- Demography and Population Studies, Schools of Social Sciences and Public Health, University of the Witwatersrand, Johannesburg, South Africa
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16
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Sharma JR, Mabhida SE, Myers B, Apalata T, Nicol E, Benjeddou M, Muller C, Johnson R. Prevalence of Hypertension and Its Associated Risk Factors in a Rural Black Population of Mthatha Town, South Africa. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:1215. [PMID: 33572921 PMCID: PMC7908535 DOI: 10.3390/ijerph18031215] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 12/18/2020] [Accepted: 12/24/2020] [Indexed: 11/16/2022]
Abstract
Background: The occurrence of hypertension has been increasing alarmingly in both low and middle-income countries. Despite acknowledging hypertension as the most common life-threatening risk factor for cardiovascular disease (CVD), a dearth of data is available on the prevalence, awareness, and determinants of hypertension in rural parts of South Africa. The principal aim of the current study is to determine the prevalence and associated risk factors of hypertension among a black rural African population from the Mtatha town of Eastern Cape Province. Methods: This was a cross-sectional study, and individuals over 18 years of age were randomly screened using a World Health Organization stepwise questionnaire. Sociodemographic information, anthropometric measurements, fasting blood glucose levels, and three independent blood pressure (BP) readings were measured. Blood pressure measurements were classified according to the American Heart Association guidelines. Univariate and multivariate analyses were performed to determine the significant predictors of hypertension. Results: Of the total participants (n = 556), 71% of individuals had BP scores in the hypertensive range. In univariate analysis, age, westernized diet, education, income, and diabetic status, as well as overweight/obese status were positively associated with the prevalence of hypertension. However, in a multivariate logistic regression analysis only, age, body mass index (BMI), diabetic status, and westernized diet were significantly associated with a higher risk of developing hypertension. Gender, age, and BMI were potential factors having a significant association with the treatment of hypertension. Individuals who did not consider the importance of medicine had higher chances of having their hypertension being untreated. Conclusions: Prevalence of hypertension was high among the black rural African population of Mthatha town. Gender, age, westernized diet, education level, income status, diabetic as well as overweight/obese status were the most significant predictors of hypertension.
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Affiliation(s)
- Jyoti Rajan Sharma
- Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg, Cape Town 7505, South Africa; (J.R.S.); (S.E.M.); (C.M.)
| | - Sihle E. Mabhida
- Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg, Cape Town 7505, South Africa; (J.R.S.); (S.E.M.); (C.M.)
- Department of Biotechnology, Faculty of Natural Sciences, University of the Western Cape, Bellville, Cape Town 7535, South Africa;
| | - Bronwyn Myers
- Division of Alcohol Tobacco and Other Drug Research Unit, South African Medical Research Council, Tygerberg, Cape Town 7505, South Africa;
- Division of Addiction Psychiatry, Department of Psychiatry and Mental Health, Groote Schuur Hospital, University of Cape Town, Observatory, Cape Town 7925, South Africa
| | - Teke Apalata
- Division of Medical Microbiology, Department of Pathology and Laboratory-Medicine, Faculty of Health Sciences, Walter Sisulu University, Mthatha 5117, South Africa;
| | - Edward Nicol
- Burden of Disease Research Unit, South African Medical Research Council, Cape Town 7505, South Africa;
- Division of Health Systems and Public Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, Cape Town 7505, South Africa
| | - Mongi Benjeddou
- Department of Biotechnology, Faculty of Natural Sciences, University of the Western Cape, Bellville, Cape Town 7535, South Africa;
| | - Christo Muller
- Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg, Cape Town 7505, South Africa; (J.R.S.); (S.E.M.); (C.M.)
- Division of Medical Physiology, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, Cape Town 7505, South Africa
| | - Rabia Johnson
- Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg, Cape Town 7505, South Africa; (J.R.S.); (S.E.M.); (C.M.)
- Division of Medical Physiology, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, Cape Town 7505, South Africa
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17
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Oladimeji KE, Dzomba A, Adetokunboh O, Zungu L, Yaya S, Goon DT. Epidemiology of multimorbidity among people living with HIV in sub-Saharan Africa: a systematic review protocol. BMJ Open 2020; 10:e036988. [PMID: 33310790 PMCID: PMC7735099 DOI: 10.1136/bmjopen-2020-036988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
INTRODUCTION Sub-Saharan Africa remains the epicentre of the HIV pandemic, yet enormous knowledge gaps still exist to elicit a comprehensive portrait of multimorbidity and HIV linkage. This study aims to conduct a systematic meta-analysis of peer-reviewed literature to investigate the current status of multimorbidity epidemiology among people living with HIV (PLHIV) in sub-Saharan Africa. METHODS AND ANALYSIS Our review will assess observational studies (ie, cohort, case-control and cross-sectional) on multimorbidity associated with HIV/AIDS between 1 January 2005 and 31 October 2020 from sub-Saharan Africa. Databases to be searched include PubMed/MEDLINE, Scopus, Web of Science, Cochrane library, African Index Medicus and African Journals Online. We will also search the WHO clinical trial registry and databases for systematic reviews. The search strategy will involve the use of medical subject headings and key terms to obtain studies on the phenomena of HIV and multimorbidity at high precision. Quality assessment of eligible studies will be ascertained using a validated quality assessment tool for observational studies and risk of bias through sensitivity analysis to identify publication bias. Further, data on characteristics of the study population, multimorbid conditions, epidemiological rates and spatial distribution of multimorbid conditions in PLHIV will be extracted. Heterogeneity of individual studies will be evaluated using the I2 statistic from combined effect size estimates. The statistical analysis will be performed using STATA statistical software V.15 and results will be graphically represented on a forest plot. ETHICS AND DISSEMINATION Ethical approval is not applicable in this study as it is a systematic review of published literature. The review findings may also be presented at conferences or before other relevant stakeholders. PROSPERO REGISTRATION NUMBER CRD42020148668.
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Affiliation(s)
- Kelechi Elizabeth Oladimeji
- Faculty of Health Sciences, University of Fort Hare, East London, South Africa
- College of Graduate Studies, University of South Africa, Johannesburg, South Africa
| | - Armstrong Dzomba
- Medical Research Council/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Olatunji Adetokunboh
- DST-NRF Centre of Excellence in Epidemiological Modelling and Analysis (SACEMA), Stellenbosch University, Stellenbosch, South Africa
- Division of Epidemiology and Biostatistics, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, Western Cape, South Africa
| | - Lindiwe Zungu
- College of Graduate Studies, University of South Africa, Johannesburg, South Africa
| | - Sanni Yaya
- Faculty of Social Sciences, University of Ottawa, Ottawa, Ontario, Canada
| | - Daniel Ter Goon
- Faculty of Health Sciences, University of Fort Hare, East London, South Africa
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18
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Ameh S, Gómez-Olivé FX, Kahn K, Tollman S, Klipstein-Grobusch K. Multilevel predictors of controlled CD4 count and blood pressure in an integrated chronic disease management model in rural South Africa: a panel study. BMJ Open 2020; 10:e037580. [PMID: 33148729 PMCID: PMC7640524 DOI: 10.1136/bmjopen-2020-037580] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
OBJECTIVE In 2011, The National Department of Health introduced the Integrated Chronic Disease Management (ICDM) model as a pilot programme in selected primary healthcare facilities in South Africa. The objective of this study was to determine individual-level and facility-level predictors of controlled CD4 count and blood pressure (BP) in patients receiving treatment for HIV and hypertension, respectively. DESIGN A panel study. SETTING AND PARTICIPANTS This study was conducted in the Bushbuckridge Municipality, South Africa from 2011 to 2013. Facility records of patients aged ≥18 years were retrieved from the integrated chronic disease management (ICDM) pilot (n=435) and comparison facilities (n=443) using a three-step probability sampling process. CD4 count and BP control are defined as CD4 count >350 cells/mm3 and BP <140/90 mm Hg. A multilevel Least Absolute Shrinkage and Selection Operator binary logistic regression analysis was done at a 5% significance level using STATA V.16. PRIMARY OUTCOME MEASURES CD4 (cells/mm3) count and BP (mm Hg). RESULTS Compared with the comparison facilities, patients receiving treatment in the pilot facilities had increased odds of controlling their CD4 count (OR=5.84, 95% CI 3.21-8.22) and BP (OR=1.22, 95% CI 1.04-2.14). Patients aged 50-59 (OR=6.12, 95% CI 2.14-7.21) and ≥60 (OR=7.59, 95% CI 4.75-11.82) years had increased odds of controlling their CD4 counts compared with those aged 18-29 years. Likewise, patients aged 40-49 (OR=5.73, 95% CI 1.98-8.43), 50-59 (OR=7.28, 95% CI 4.33-9.27) and ≥60 (OR=9.31, 95% CI 5.12-13.68) years had increased odds of controlling their BP. In contrast, men had decreased odds of controlling their CD4 count (OR=0.12, 95% CI 0.10-0.46) and BP (OR=0.21, 95% CI 0.19-0.47) than women. CONCLUSION The ICDM model had a small but significant effect on BP control, hence, the need to more effectively leverage the HIV programme for optimal BP control in the setting.
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Affiliation(s)
- Soter Ameh
- Department of Community Medicine, Faculty of Medicine, College of Medical Sciences, University of Calabar, Calabar, Nigeria
- Medical Research Council/Wits University Rural Public Health and Health Transitions Research Unit (Agincourt), Faculty of Health Sciences, School of Public Health, University of the Witwatersrand, Johannesburg, South Africa
- Department of Global Health and Population, Harvard T.H. Chan School of Public Health, Harvard University, Boston, Massachusetts, USA
| | - Francesc X Gómez-Olivé
- Medical Research Council/Wits University Rural Public Health and Health Transitions Research Unit (Agincourt), Faculty of Health Sciences, School of Public Health, University of the Witwatersrand, Johannesburg, South Africa
- The International Network for the Demographic Evaluation of Populations and Their Health in Developing Countries (INDEPTH), Accra, Ghana
| | - Kathleen Kahn
- Medical Research Council/Wits University Rural Public Health and Health Transitions Research Unit (Agincourt), Faculty of Health Sciences, School of Public Health, University of the Witwatersrand, Johannesburg, South Africa
- The International Network for the Demographic Evaluation of Populations and Their Health in Developing Countries (INDEPTH), Accra, Ghana
- Umeå Centre for Global Health Research, Epidemiology and Global Health, Umeå University, Umeå, Sweden
| | - Stephen Tollman
- Medical Research Council/Wits University Rural Public Health and Health Transitions Research Unit (Agincourt), Faculty of Health Sciences, School of Public Health, University of the Witwatersrand, Johannesburg, South Africa
- The International Network for the Demographic Evaluation of Populations and Their Health in Developing Countries (INDEPTH), Accra, Ghana
- Umeå Centre for Global Health Research, Epidemiology and Global Health, Umeå University, Umeå, Sweden
| | - Kerstin Klipstein-Grobusch
- Division of Epidemiology and Biostatistics, School of Public Health, University of the Witwatersrand, Johannesburg, South Africa
- Julius Global Health, Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, The Netherlands
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Jardim TV, Souza ALL, Barroso WKS, Jardim PCBV. Blood Pressure Control and Associated Factors in a Real-World Team-Based Care Center. Arq Bras Cardiol 2020; 115:174-181. [PMID: 32876180 PMCID: PMC8384292 DOI: 10.36660/abc.20180384] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Accepted: 07/17/2019] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Although team-based care is recommended for patients with hypertension, results of this intervention in a real-world setting are missing in the literature. OBJECTIVE To report the results of a real-world long-term team-based care for hypertensive patients we conducted this study. METHODS Data of hypertensive patients attending a multidisciplinary treatment center located in the Midwest region of Brazil in June 2017 with at least two follow-up visits were retrospectively assessed. Anthropometric, blood pressure (BP), follow-up time, pharmacological treatment, diabetes and lifestyle data were collected from the last visit to the service. BP values < 140 x 90 mmHg in non-diabetics and < 130 x 80 mmHg in diabetics were considered controlled. A logistic regression model was built to identify variables independently associated to BP control. Significance level adopted p < 0.05. RESULTS A total of 1,548 patients were included, with a mean follow-up time of 7.6 ± 7.1 years. Most patients were female (73.6%; n=1,139) with a mean age of 61.8 ±12.8 years. BP control rates in all the sample, and in non-diabetics and diabetics were 68%, 79%, and 37.9%, respectively. Diabetes was inversely associated with BP control (OR 0.16; 95%CI 0.12-0.20; p<0.001) while age ≥ 60 years (OR 1.48; 95%CI 1.15-1.91; p=0.003) and female sex (OR 1.38; 95%CI 1.05-1.82; p=0.020) were directly associated. CONCLUSIONS A BP control rate around 70% was found in patients attending a multidisciplinary team care center for hypertension. Focus on patients with diabetes, younger than 60 years and males should be given to further improve these results. (Arq Bras Cardiol. 2020; 115(2):174-181).
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Affiliation(s)
- Thiago Veiga Jardim
- Universidade Federal de Goiás - Programa de Pós-Graduação em Ciências da Saúde , Goiânia , GO - Brasil.,Universidade Federal de Goiás - Liga de Hipertensão Arterial, Goiânia , GO - Brasil
| | - Ana Luiza Lima Souza
- Universidade Federal de Goiás - Programa de Pós-Graduação em Ciências da Saúde , Goiânia , GO - Brasil.,Universidade Federal de Goiás - Liga de Hipertensão Arterial, Goiânia , GO - Brasil
| | - Weimar Kunz Sebba Barroso
- Universidade Federal de Goiás - Programa de Pós-Graduação em Ciências da Saúde , Goiânia , GO - Brasil.,Universidade Federal de Goiás - Liga de Hipertensão Arterial, Goiânia , GO - Brasil
| | - Paulo Cesar B Veiga Jardim
- Universidade Federal de Goiás - Programa de Pós-Graduação em Ciências da Saúde , Goiânia , GO - Brasil.,Universidade Federal de Goiás - Liga de Hipertensão Arterial, Goiânia , GO - Brasil
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20
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Liu Q, Huang YJ, Zhao L, Wang W, Liu S, He GP, Liao L, Zeng Y. Association between knowledge and risk for cardiovascular disease among older adults: A cross-sectional study in China. Int J Nurs Sci 2020; 7:184-190. [PMID: 32685615 PMCID: PMC7355188 DOI: 10.1016/j.ijnss.2020.03.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 02/16/2020] [Accepted: 03/25/2020] [Indexed: 12/19/2022] Open
Abstract
Objectives This study aimed to describe cardiovascular risk and cardiovascular disease (CVD) knowledge among older adults, and further explore the association between knowledge and risk. Methods In this cross-sectional study, we enrolled 1120 older adults who received physical examination in health centers. The participants were interviewed to obtain their behavioral risk factors related to CVD and clinical characteristics. A risk prediction chart was used to predict participants’ cardiovascular risk based on clinical characteristics and behavioral risk factors. Participants’ CVD knowledge was collected with a pretested knowledge questionnaire. Results Among the 1120 participants, 240 (21.4%) had low cardiovascular risk, 353 (31.5%) had moderate cardiovascular risk, 527 (47%) had high and very high cardiovascular risk. The knowledge level about CVD among 0.8% of the 1120 participants was good while that of 56.9% was poor. Lower CVD knowledge level, older age, lower income, and lower educational level were the independent factors of higher cardiovascular risk level. Conclusions This study highlights the need to reduce the cardiovascular risk among older adults. CVD knowledge should be considered when developing health interventions.
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Affiliation(s)
- Qi Liu
- School of Nursing, University of South China, Hengyang, Hunan, China
| | - Yan-Jin Huang
- School of Nursing, University of South China, Hengyang, Hunan, China
| | - Ling Zhao
- School of Nursing, University of South China, Hengyang, Hunan, China
| | - Wen Wang
- School of Nursing, University of South China, Hengyang, Hunan, China
| | - Shan Liu
- School of Nursing, University of South China, Hengyang, Hunan, China
| | - Guo-Ping He
- School of Nursing, University of South China, Hengyang, Hunan, China
| | - Li Liao
- School of Nursing, University of South China, Hengyang, Hunan, China
| | - Ying Zeng
- School of Nursing, University of South China, Hengyang, Hunan, China
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21
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Okello S, Amir A, Bloomfield GS, Kentoffio K, Lugobe HM, Reynolds Z, Magodoro IM, North CM, Okello E, Peck R, Siedner MJ. Prevention of cardiovascular disease among people living with HIV in sub-Saharan Africa. Prog Cardiovasc Dis 2020; 63:149-159. [PMID: 32035126 PMCID: PMC7237320 DOI: 10.1016/j.pcad.2020.02.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Accepted: 02/03/2020] [Indexed: 02/07/2023]
Abstract
As longevity has increased for people living with HIV (PLWH) in the United States and Europe, there has been a concomitant increase in the prevalence of cardiovascular disease (CVD) risk factors and morbidity in this population. Whereas the availability of HIV antiretroviral therapy has resulted in dramatic increases in life expectancy in sub-Saharan Africa (SSA), where over two thirds of PLWH reside, if and how these trends impact the epidemiology of CVD is less clear. In this review, we describe the current state of the science on how both HIV and its treatment impact CVD risk factors and outcomes among PLWH in sub-Saharan Africa, including regional factors (unique to SSA) likely to differentiate these relationships from the global North. We then outline how current regional guidelines address CVD prevention among PLWH and which clinical and structural interventions are best poised to confront the co-epidemics of HIV and CVD in the region. We conclude with a discussion of key research gaps that need to be addressed to optimally develop an actionable public health response.
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Affiliation(s)
- Samson Okello
- Department of Internal Medicine, Mbarara University of Science and Technology, Mbarara, Uganda; Lown Scholars Program, Department of Global Health and Population, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Department of Medicine, University of Virginia Health Systems, Charlottesville, VA, USA.
| | - Abdallah Amir
- Department of Internal Medicine, Mbarara University of Science and Technology, Mbarara, Uganda; Department of Neurology, Mayo Clinic, Phoenix/Scottsdale, AZ, USA
| | - Gerald S Bloomfield
- Duke Clinical Research Institute, Durham, NC, USA; Duke Global Health Institute, Durham, NC, USA; Duke University Medical Center, Durham, NC, USA
| | - Katie Kentoffio
- Department of Cardiology, University of California San Francisco, San Francisco, CA, USA
| | - Henry M Lugobe
- Department of Obstetrics and Gynecology, Mbarara University of Science and Technology, Mbarara, Uganda
| | - Zahra Reynolds
- Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Itai M Magodoro
- Departments of Medicine & Diagnostic Radiology, McGill University Health Center, Montreal, QC, Canada; Division of Cardiology, University of Cape Town, Cape Town, South Africa
| | - Crystal M North
- Department of Medicine, Massachusetts General Hospital, Boston, MA, USA; Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Harvard Medical School, Boston, MA, USA
| | | | - Robert Peck
- The Center for Global Health, Weill Cornell Medical Center for Global Health, New York, USA; Department of Internal Medicine, Weill Bugando School of Medicine, Mwanza, Tanzania
| | - Mark J Siedner
- Department of Internal Medicine, Mbarara University of Science and Technology, Mbarara, Uganda; Department of Medicine, Massachusetts General Hospital, Boston, MA, USA; Harvard Medical School, Boston, MA, USA
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22
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Lloyd-Sherlock P, Amoakoh-Coleman M. A critical review of intervention and policy effects on the health of older people in sub-Saharan Africa. Soc Sci Med 2020; 250:112887. [PMID: 32135461 DOI: 10.1016/j.socscimed.2020.112887] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 02/19/2020] [Accepted: 02/24/2020] [Indexed: 11/20/2022]
Abstract
This paper provides a critical review of publications containing information about specific health effects on older adults of interventions and policies in sub-Saharan Africa. Interventions and policies fell into the following categories: testing or treating HIV, the provision of pensions, screening for non-communicable diseases (NCDs), health service financing and interventions related to visual conditions. The review finds that the relevant literature is very limited relative to the size of older populations in the region. Conditions of particular relevance to older adults, such as NCDs, are under-represented and most studies treat older people as a single category, typically including all adults aged 50 and over. The paper concludes that evidence about the health effects of interventions and policies on the region's rapidly growing older populations remains minimal, and that this both reflects and reinforces a bias against older people in health policy.
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Affiliation(s)
- Peter Lloyd-Sherlock
- School of International Development, University of East Anglia, Earlham Road, Norwich, NR4 7HT, UK.
| | - Mary Amoakoh-Coleman
- Department of Epidemiology, Noguchi Memorial Institute for Medical Research, University of Ghana, Legon, Ghana.
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23
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Madela S, James S, Sewpaul R, Madela S, Reddy P. Early detection, care and control of hypertension and diabetes in South Africa: A community-based approach. Afr J Prim Health Care Fam Med 2020; 12:e1-e9. [PMID: 32129650 PMCID: PMC7061221 DOI: 10.4102/phcfm.v12i1.2160] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 10/16/2019] [Accepted: 10/30/2019] [Indexed: 12/28/2022] Open
Abstract
Background Non-communicable diseases (NCDs) are a major public health concern with raised blood pressure and glucose emerging as leading causes of death and disability. Aim This community-based demonstration project using community caregivers (CCGs) trained in screening for hypertension and diabetes aimed at improving early detection and linkage to care and management. Setting The project was conducted in KwaZulu-Natal province. Methods The CCGs were trained in NCD-related health education, promotion and screening for hypertension and diabetes using an accredited programme. The CCGs screened community members for hypertension and diabetes using three screening methods: door-to-door visits, community campaigns and workplaces. Results Twenty-five CCGs received the accredited NCD training. A total of 10 832 community members were screened for hypertension and 6481 had their blood glucose measured. Of those screened, 29.7% and 4.4%, respectively, had raised blood pressure (≥ 140/90 mmHg) and blood glucose (≥ 11.0 mmol/L) who required referral to a primary healthcare facility. More than one in five (21.0%, n = 1448), of those with no previous hypertension diagnosis, were found to have raised blood pressure at screening, representing newly detected cases. Less than a third (28.5%) of patients referred to the facilities for raised blood pressure actually presented themselves for a facility assessment, of which 71.8% had their hypertension diagnosis confirmed and were advised to continue, adjust or initiate treatment. Similarly, 29.1% of patients referred to the facilities for raised blood glucose presented themselves at the facility, of which 71.4% received a confirmatory diabetes diagnosis. Conclusion Community caregivers played an important role in early detection of raised blood pressure and raised blood glucose, and in referring patients to primary care.
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24
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Jardim TV, Witham MD, Abrahams-Gessel S, Gómez-Olivé FX, Tollman S, Berkman L, Gaziano TA. Cardiovascular Disease Profile of the Oldest Adults in Rural South Africa: Data from the HAALSI Study (Health and Aging in Africa: Longitudinal Studies of INDEPTH Communities). J Am Geriatr Soc 2018; 66:2151-2157. [PMID: 30312474 PMCID: PMC6417425 DOI: 10.1111/jgs.15567] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2018] [Accepted: 01/01/2018] [Indexed: 11/26/2022]
Abstract
OBJECTIVES To characterize the cardiovascular disease (CVD) profile of individuals aged 80 and older in rural South Africa. DESIGN First wave of population-based longitudinal cohort. SETTING Agincourt subdistrict (Mpumalanga Province) in rural South Africa. PARTICIPANTS Adults residents (N = 5,059). MEASUREMENTS In-person interviews were conducted to obtain social, behavioral, economic, and clinical data. Prevalence of hypertension, diabetes, dyslipidemia, high waist-to-hip ratio, overweight and obesity, high-risk high-sensitivity C-reactive protein, smoking, stroke, myocardial infarction, angina pectoris, and heart failure in individuals younger than 65, aged 65 to 79, and aged 80 and older were compared. Associations between self-reported treatments and determinants of hypertension treatment in those aged 80 and older were assessed using multivariable regression. RESULTS Of 5,059 individuals included, 549 (10.8%) were aged 80 and older, and their CVD prevalence was 17.9% (stroke 3.8%, myocardial infarction 0.5%, angina pectoris 13.5%, heart failure 0.7%). Hypertension prevalence in this group was 73.8%, and along with angina pectoris, it increased with age (p<.001), whereas overweight and obesity (46.4%), dyslipidemia (39.1%), and smoking prevalences (3.1%) decreased (p<.001). Hypertension treatment was significantly associated with being aged 80 and older (odds ratio (OR)=1.48; 95% confidence interval (CI)=1.14-1.92, p=.003). Male sex (OR=0.73, 95% CI=0.66-0.88, p=.001), being an immigrant (OR=0.80, 95% CI=0.65-0.98; p=.03), higher socioeconomic status (OR=1.28, 95% CI=1.06-1.53, p=.009), and higher depression score (OR=1.12, 95% CI=1.05-1.19, p<.001) were associated with hypertension treatment in those aged 80 and older. CONCLUSION This is the first study to characterize the CVD profile of individuals aged 80 and older in sub-Saharan Africa and provides baseline data for comparison with future studies in this rapidly growing age group. J Am Geriatr Soc 66:2151-2157, 2018.
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Affiliation(s)
- Thiago Veiga Jardim
- Division of Cardiovascular Medicine, Brigham &
Women’s Hospital, Boston, MA
- Center for Health Decision Science, Harvard T.H. Chan
School of Public Health, Boston, MA
| | - Miles D Witham
- Ageing and Health, School of Medicine, University of
Dundee, Scotland, UK
| | | | - F. Xavier Gómez-Olivé
- Medical Research Council / University of the Witwatersrand
Rural Public Health and Health Transitions Research Unit, School of Public Health,
Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South
Africa
- Center for Population and Development Studies, Harvard T.H.
Chan School of Public Health, Harvard University, Cambridge, Massachusetts,
USA
| | - Stephen Tollman
- Medical Research Council / University of the Witwatersrand
Rural Public Health and Health Transitions Research Unit, School of Public Health,
Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South
Africa
- Center for Population and Development Studies, Harvard T.H.
Chan School of Public Health, Harvard University, Cambridge, Massachusetts,
USA
- INDEPTH Network, Accra, Ghana
| | - Lisa Berkman
- Center for Population and Development Studies, Harvard T.H.
Chan School of Public Health, Harvard University, Cambridge, Massachusetts,
USA
| | - Thomas A. Gaziano
- Division of Cardiovascular Medicine, Brigham &
Women’s Hospital, Boston, MA
- Center for Health Decision Science, Harvard T.H. Chan
School of Public Health, Boston, MA
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25
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Chang AY, Gómez-Olivé FX, Manne-Goehler J, Wade AN, Tollman S, Gaziano TA, Salomon JA. Multimorbidity and care for hypertension, diabetes and HIV among older adults in rural South Africa. Bull World Health Organ 2018; 97:10-23. [PMID: 30618461 PMCID: PMC6307505 DOI: 10.2471/blt.18.217000] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2018] [Revised: 09/29/2018] [Accepted: 10/08/2018] [Indexed: 11/27/2022] Open
Abstract
Objective To examine how multimorbidity might affect progression along the continuum of care among older adults with hypertension, diabetes and human immunodeficiency virus (HIV) infection in rural South Africa. Methods We analysed data from 4447 people aged 40 years or older who were enrolled in a longitudinal study in Agincourt sub-district. Household-based interviews were completed between November 2014 and November 2015. For hypertension and diabetes (2813 and 512 people, respectively), we defined concordant conditions as other cardiometabolic conditions, and discordant conditions as mental disorders or HIV infection. For HIV infection (1027 people) we defined any other conditions as discordant. Regression models were fitted to assess the relationship between the type of multimorbidity and progression along the care continuum and the likelihood of patients being in each stage of care for the index condition (four stages from testing to treatment). Findings People with hypertension or diabetes plus other cardiometabolic conditions were more like to progress through the care continuum for the index condition than those without cardiometabolic conditions (relative risk, RR: 1.14, 95% confidence interval, CI: 1.09-1.20, and RR: 2.18, 95% CI: 1.52-3.26, respectively). Having discordant comorbidity was associated with greater progression in care for those with hypertension but not diabetes. Those with HIV infection plus cardiometabolic conditions had less progress in the stages of care compared with those without such conditions (RR: 0.86, 95% CI: 0.80-0.92). Conclusion Patients with concordant conditions were more likely to progress further along the care continuum, while those with discordant multimorbidity tended not to progress beyond diagnosis.
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Affiliation(s)
- Angela Y Chang
- Department of Global Health and Population, Harvard T.H. Chan School of Public Health, 677 Huntington Avenue, Boston, Massachusetts, United States of America (USA)
| | - F Xavier Gómez-Olivé
- MRC/Wits Rural Public Health and Health Transitions Research Unit, School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | | | - Alisha N Wade
- MRC/Wits Rural Public Health and Health Transitions Research Unit, School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Stephen Tollman
- MRC/Wits Rural Public Health and Health Transitions Research Unit, School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Thomas A Gaziano
- Department of Cardiovascular Medicine, Harvard Medical School, Boston, USA
| | - Joshua A Salomon
- Department of Medicine, Stanford University School of Medicine, Stanford, USA
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The association of multimorbidity with healthcare expenditure among the elderly patients in Beijing, China. Arch Gerontol Geriatr 2018; 79:32-38. [PMID: 30086414 DOI: 10.1016/j.archger.2018.07.008] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2018] [Revised: 06/10/2018] [Accepted: 07/11/2018] [Indexed: 01/31/2023]
Abstract
OBJECTIVES To add evidence to the relationship between multimorbidity and healthcare expenditure. METHODS The study population comprised patients aged ≥60 in Beijing, covered by the Urban Employee Basic Medical Insurance (UEBMI) (N = 30,774). Multimorbidity was measured with 33 chronic conditions confirmed by doctors. Multivariate linear regression was performed. RESULTS The prevalence of multimorbidity was 82% among elderly patients in Beijing and was higher in older and female patients. About 95% of the healthcare expenditure on the 33 conditions was spent on multimorbid patients. In the multivariate analysis, after inclusion of demographic characteristics, disease severity, and health facility level, the expenditure increased significantly with the number of chronic conditions. After further including condition types, the coefficients of the number of conditions were much lower than those in previous models. The expenditure on patients with two and three conditions was 3.4 times (95% CI: 3.2-3.7) and 5.3 times (95% CI: 4.7-6.0) higher than that on patients with a single condition, respectively; however, the expenditure did not significantly increase after three conditions. CONCLUSIONS Multimorbidity is common among elderly patients in Beijing and consumes the majority of the healthcare resources. The health delivery system in China and other low- and middle-income countries needs to pay more attention to multimorbidity.
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Self-rated health status and illiteracy as death predictors in a Brazilian cohort. PLoS One 2018; 13:e0200501. [PMID: 30001429 PMCID: PMC6042772 DOI: 10.1371/journal.pone.0200501] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Accepted: 06/27/2018] [Indexed: 11/29/2022] Open
Abstract
Cohort studies assessing predictive values of self-rated health (SRH) and illiteracy on mortality in low-to-middle income countries are missing in the literature. Aiming to determine if these two variables were death predictors, an observational prospective population-based cohort study was conducted in a Brazilian small city. The cohort was established in 2002 with a representative sample of adults living in the city, and re-assessed in 2015. Sociodemographic (including illiteracy), anthropometric, lifestyle, previous CVD, and SRH data were collected. Cox proportional hazard models were designed to assess SRH and illiteracy in 2002 as death (all causes, CVD and non-CVD) predictors in 2015. From a total of 1066 individuals included in this study, 95(9%) died of non-CVD causes and 53(5%) from CVD causes. Mortality rates were higher among those with worse SRH in comparison to better health status categories for all causes of death, CVD and non-CVD deaths (p<0.001 for all outcomes). Similarly, illiterate individuals had higher mortality rates in comparison to non-illiterate for all causes of death (p<0.001), CVD (p = 0.004) and non-CVD death (p<0.001). Higher SRH negatively predicted CVD death (HR 0.44; 95%CI 0.44–0.95; p = 0.027) and all causes of death (OR 0.40; 95%CI 0.20–0.78; p = 0.008) while illiteracy positively predicted Non-CVD death (OR 1.59; 95%CI 1.03–2.54; p = 0.046). In conclusion, we found in this large Brazilian cohort followed for 13 years that better health perception was a negative predictor of death from all causes and CVD deaths, while illiteracy was a positive predictor of non-CVD deaths.
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Gómez-Olivé FX, Montana L, Wagner RG, Kabudula CW, Rohr JK, Kahn K, Bärnighausen T, Collinson M, Canning D, Gaziano T, Salomon JA, Payne CF, Wade A, Tollman SM, Berkman L. Cohort Profile: Health and Ageing in Africa: A Longitudinal Study of an INDEPTH Community in South Africa (HAALSI). Int J Epidemiol 2018; 47:689-690j. [PMID: 29325152 PMCID: PMC6005147 DOI: 10.1093/ije/dyx247] [Citation(s) in RCA: 133] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Revised: 10/29/2017] [Accepted: 01/02/2018] [Indexed: 12/22/2022] Open
Affiliation(s)
- F Xavier Gómez-Olivé
- MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), University of the Witwatersrand, Faculty of Health Sciences, Johannesburg, South Africa
- Harvard Center for Population and Development Studies, Harvard University, Cambridge, MA, USA
- INDEPTH Network, East Legon, Accra, Ghana
| | - Livia Montana
- Harvard Center for Population and Development Studies, Harvard University, Cambridge, MA, USA
| | - Ryan G Wagner
- MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), University of the Witwatersrand, Faculty of Health Sciences, Johannesburg, South Africa
- Centre for Global Health Research, Umeå University, Umeå, Sweden
- INDEPTH Network, East Legon, Accra, Ghana
| | - Chodziwadziwa W Kabudula
- MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), University of the Witwatersrand, Faculty of Health Sciences, Johannesburg, South Africa
- Department of Population Health, London School of Hygiene and Tropical Medicine, London, UK
- INDEPTH Network, East Legon, Accra, Ghana
| | - Julia K Rohr
- Harvard Center for Population and Development Studies, Harvard University, Cambridge, MA, USA
| | - Kathleen Kahn
- MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), University of the Witwatersrand, Faculty of Health Sciences, Johannesburg, South Africa
- Centre for Global Health Research, Umeå University, Umeå, Sweden
- INDEPTH Network, East Legon, Accra, Ghana
| | - Till Bärnighausen
- Africa Centre for Health and Population Studies, University of KwaZulu-Natal, Mtubatuba, South Africa
- Department of Global Health and Population
| | - Mark Collinson
- MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), University of the Witwatersrand, Faculty of Health Sciences, Johannesburg, South Africa
- Centre for Global Health Research, Umeå University, Umeå, Sweden
- INDEPTH Network, East Legon, Accra, Ghana
| | - David Canning
- Harvard Center for Population and Development Studies, Harvard University, Cambridge, MA, USA
- Department of Global Health and Population
| | - Thomas Gaziano
- Division of Cardiovascular Medicine, Brigham and Women’s Hospital, Boston, MA, USA
- Harvard Medical School, Harvard University, Boston, MA, USA
| | - Joshua A Salomon
- Harvard Center for Population and Development Studies, Harvard University, Cambridge, MA, USA
- Department of Global Health and Population
| | - Collin F Payne
- Harvard Center for Population and Development Studies, Harvard University, Cambridge, MA, USA
| | - Alisha Wade
- MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), University of the Witwatersrand, Faculty of Health Sciences, Johannesburg, South Africa
| | - Stephen M Tollman
- MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), University of the Witwatersrand, Faculty of Health Sciences, Johannesburg, South Africa
- Centre for Global Health Research, Umeå University, Umeå, Sweden
- INDEPTH Network, East Legon, Accra, Ghana
| | - Lisa Berkman
- MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), University of the Witwatersrand, Faculty of Health Sciences, Johannesburg, South Africa
- Harvard Center for Population and Development Studies, Harvard University, Cambridge, MA, USA
- Department of Global Health and Population
- Departments of Social and Behavioral Sciences and Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
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Wollum A, Gabert R, McNellan CR, Daly JM, Reddy P, Bhatt P, Bryant M, Colombara DV, Naidoo P, Ngongo B, Nyembezi A, Petersen Z, Phillips B, Wilson S, Gakidou E, Duber HC. Identifying gaps in the continuum of care for cardiovascular disease and diabetes in two communities in South Africa: Baseline findings from the HealthRise project. PLoS One 2018; 13:e0192603. [PMID: 29538420 PMCID: PMC5851537 DOI: 10.1371/journal.pone.0192603] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Accepted: 01/28/2018] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND The HealthRise initiative seeks to implement and evaluate innovative community-based strategies for diabetes, hypertension and hypercholesterolemia along the entire continuum of care (CoC)-from awareness and diagnosis, through treatment and control. In this study, we present baseline findings from HealthRise South Africa, identifying gaps in the CoC, as well as key barriers to care for non-communicable diseases (NCDs). METHODS This mixed-methods needs assessment utilized national household data, health facility surveys, focus group discussions, and key informant interviews in Umgungundlovu and Pixley ka Seme districts. Risk factor and disease prevalence were estimated from the South Africa National Health and Nutrition Examination Survey. Health facility surveys were conducted at 86 facilities, focusing on essential intervention, medications and standard treatment guidelines. Quantitative results are presented descriptively, and qualitative data was analyzed using a framework approach. RESULTS 46.8% of the population in Umgungundlovu and 51.0% in Pixley ka Seme were hypertensive. Diabetes was present in 11.0% and 9.7% of the population in Umgungundlovu and Pixley ka Seme. Hypercholesterolemia was more common in Pixley ka Seme (17.3% vs. 11.1%). Women and those of Indian descent were more likely to have diabetes. More than half of the population was found to be overweight, and binge drinking, inactivity and smoking were all common. More than half of patients with hypertension were unaware of their disease status (51.6% in Pixley ka Seme and 51.3% in Umgungundlovu), while the largest gap in the diabetes CoC occurred between initiation of treatment and achieving disease control. Demand-side barriers included lack of transportation, concerns about confidentiality, perceived discrimination and long wait times. Supply-side barriers included limited availability of testing equipment, inadequate staffing, and pharmaceutical stock outs. CONCLUSION In this baseline assessment of two South African health districts we found high rates of undiagnosed hypercholesterolemia and hypertension, and poor control of hypercholesterolemia, hypertension, and diabetes. The HealthRise Initiative will need to address key supply- and demand-side barriers in an effort to improve important NCD outcomes.
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Affiliation(s)
- Alexandra Wollum
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, Washington, United States of America
| | - Rose Gabert
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, Washington, United States of America
| | - Claire R. McNellan
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, Washington, United States of America
| | - Jessica M. Daly
- Medtronic Foundation, Minneapolis, Minnesota, United States of America
| | | | - Paurvi Bhatt
- Medtronic Foundation, Minneapolis, Minnesota, United States of America
| | - Miranda Bryant
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, Washington, United States of America
| | - Danny V. Colombara
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, Washington, United States of America
| | - Pamela Naidoo
- Human Sciences Reseach Council, Cape Town, South Africa
| | - Belinda Ngongo
- Medtronic Foundation, Minneapolis, Minnesota, United States of America
- Public Health Institute, Global Health Fellows Program, Washington, DC, United States of America
| | - Anam Nyembezi
- Human Sciences Reseach Council, Cape Town, South Africa
| | | | - Bryan Phillips
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, Washington, United States of America
| | - Shelley Wilson
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, Washington, United States of America
| | - Emmanuela Gakidou
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, Washington, United States of America
| | - Herbert C. Duber
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, Washington, United States of America
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30
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Jardim TV, Reiger S, Abrahams-Gessel S, Crowther NJ, Wade A, Gómez-Olivé FX, Salomon J, Tollman S, Gaziano TA. Disparities in Management of Cardiovascular Disease in Rural South Africa: Data From the HAALSI Study (Health and Aging in Africa: Longitudinal Studies of International Network for the Demographic Evaluation of Populations and Their Health Communities). Circ Cardiovasc Qual Outcomes 2017; 10:e004094. [PMID: 29150535 PMCID: PMC5777525 DOI: 10.1161/circoutcomes.117.004094] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Accepted: 10/18/2017] [Indexed: 12/18/2022]
Abstract
BACKGROUND Optimal secondary prevention is critical for the reduction of repeated cardiovascular events, and the control of cardiovascular risk factors in this context is essential. Data on secondary prevention of cardiovascular disease (CVD) in sub-Saharan Africa are needed to inform intervention strategies with a particular focus on local disparities. The aim of this study was to assess CVD management in a rural community in northeast South Africa. METHODS AND RESULTS We recruited adults aged ≥40 years residing in the Agincourt subdistrict of Mpumalanga province. Data collection included socioeconomic and clinical data, anthropometric measures, blood pressure, human immunodeficiency virus status, and point-of-care glucose and lipid levels. CVD was defined as self-report of myocardial infarction and stroke or angina diagnosed by Rose Criteria. A linear regression model was built to identify variables independently associated with the number of cardiovascular risk factors controlled. Of 5059 subjects, 592 (11.7%) met CVD diagnostic criteria. Angina was reported in 77.0% of these subjects, stroke in 25.2%, and myocardial infarction in 3.7%. Percent controlled of the 5 individual risk factors assessed were as follows: tobacco 92.9%; blood pressure 51.2%; body mass index 33.8%; low-density lipoprotein 31.4%; and waist-to-hip ratio 29.7%. Only 4.4% had all 5 risk factors controlled and 42.4% had ≥3 risk factors controlled. Male sex (β coefficient=0.44; 95% confidence interval, 0.25-0.63; P<0.001), absence of physical disability (β coefficient=0.40; 95% confidence interval, 0.16-0.65; P=0.001), and socioeconomic status (β coefficient=0.10; 95% confidence interval, 0.01-0.19; P=0.035) were directly associated with the number of risk factors controlled. CONCLUSIONS Currently, CVD is not being optimally managed in this rural area of South Africa. There are significant disparities in control of CVD risk factors by sex, socioeconomic status, and level of disability. Efforts to improve secondary prevention in this population should be focused on females, subjects from lower socioeconomic status, and those with physical disabilities.
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Affiliation(s)
- Thiago Veiga Jardim
- From the Department of Cardiovascular Medicine, Brigham & Women's Hospital, Boston, MA (T.V.J., S.R., T.A.G.); Center for Health Decision Science (T.V.J., S.A.-G., T.A.G.), Department of Global Health and Population (J.S.), and Center for Population and Development Studies (F.X.G.-O.), Harvard T.H. Chan School of Public Health, Boston, MA; Department of Chemical Pathology, National Health Laboratory Service and Faculty of Health Sciences (N.J.C.) and Medical Research Council/University of the Witwatersrand Rural Public Health and Health Transitions Research Unit, School of Public Health, Faculty of Health Sciences (A.W., F.X.G.-O., S.T.), University of the Witwatersrand, Johannesburg, South Africa; International Network for the Demographic Evaluation of Populations and Their Health Network, Accra, Ghana (F.X.G.-O.)
| | - Sheridan Reiger
- From the Department of Cardiovascular Medicine, Brigham & Women's Hospital, Boston, MA (T.V.J., S.R., T.A.G.); Center for Health Decision Science (T.V.J., S.A.-G., T.A.G.), Department of Global Health and Population (J.S.), and Center for Population and Development Studies (F.X.G.-O.), Harvard T.H. Chan School of Public Health, Boston, MA; Department of Chemical Pathology, National Health Laboratory Service and Faculty of Health Sciences (N.J.C.) and Medical Research Council/University of the Witwatersrand Rural Public Health and Health Transitions Research Unit, School of Public Health, Faculty of Health Sciences (A.W., F.X.G.-O., S.T.), University of the Witwatersrand, Johannesburg, South Africa; International Network for the Demographic Evaluation of Populations and Their Health Network, Accra, Ghana (F.X.G.-O.)
| | - Shafika Abrahams-Gessel
- From the Department of Cardiovascular Medicine, Brigham & Women's Hospital, Boston, MA (T.V.J., S.R., T.A.G.); Center for Health Decision Science (T.V.J., S.A.-G., T.A.G.), Department of Global Health and Population (J.S.), and Center for Population and Development Studies (F.X.G.-O.), Harvard T.H. Chan School of Public Health, Boston, MA; Department of Chemical Pathology, National Health Laboratory Service and Faculty of Health Sciences (N.J.C.) and Medical Research Council/University of the Witwatersrand Rural Public Health and Health Transitions Research Unit, School of Public Health, Faculty of Health Sciences (A.W., F.X.G.-O., S.T.), University of the Witwatersrand, Johannesburg, South Africa; International Network for the Demographic Evaluation of Populations and Their Health Network, Accra, Ghana (F.X.G.-O.)
| | - Nigel J Crowther
- From the Department of Cardiovascular Medicine, Brigham & Women's Hospital, Boston, MA (T.V.J., S.R., T.A.G.); Center for Health Decision Science (T.V.J., S.A.-G., T.A.G.), Department of Global Health and Population (J.S.), and Center for Population and Development Studies (F.X.G.-O.), Harvard T.H. Chan School of Public Health, Boston, MA; Department of Chemical Pathology, National Health Laboratory Service and Faculty of Health Sciences (N.J.C.) and Medical Research Council/University of the Witwatersrand Rural Public Health and Health Transitions Research Unit, School of Public Health, Faculty of Health Sciences (A.W., F.X.G.-O., S.T.), University of the Witwatersrand, Johannesburg, South Africa; International Network for the Demographic Evaluation of Populations and Their Health Network, Accra, Ghana (F.X.G.-O.)
| | - Alisha Wade
- From the Department of Cardiovascular Medicine, Brigham & Women's Hospital, Boston, MA (T.V.J., S.R., T.A.G.); Center for Health Decision Science (T.V.J., S.A.-G., T.A.G.), Department of Global Health and Population (J.S.), and Center for Population and Development Studies (F.X.G.-O.), Harvard T.H. Chan School of Public Health, Boston, MA; Department of Chemical Pathology, National Health Laboratory Service and Faculty of Health Sciences (N.J.C.) and Medical Research Council/University of the Witwatersrand Rural Public Health and Health Transitions Research Unit, School of Public Health, Faculty of Health Sciences (A.W., F.X.G.-O., S.T.), University of the Witwatersrand, Johannesburg, South Africa; International Network for the Demographic Evaluation of Populations and Their Health Network, Accra, Ghana (F.X.G.-O.)
| | - F Xavier Gómez-Olivé
- From the Department of Cardiovascular Medicine, Brigham & Women's Hospital, Boston, MA (T.V.J., S.R., T.A.G.); Center for Health Decision Science (T.V.J., S.A.-G., T.A.G.), Department of Global Health and Population (J.S.), and Center for Population and Development Studies (F.X.G.-O.), Harvard T.H. Chan School of Public Health, Boston, MA; Department of Chemical Pathology, National Health Laboratory Service and Faculty of Health Sciences (N.J.C.) and Medical Research Council/University of the Witwatersrand Rural Public Health and Health Transitions Research Unit, School of Public Health, Faculty of Health Sciences (A.W., F.X.G.-O., S.T.), University of the Witwatersrand, Johannesburg, South Africa; International Network for the Demographic Evaluation of Populations and Their Health Network, Accra, Ghana (F.X.G.-O.)
| | - Joshua Salomon
- From the Department of Cardiovascular Medicine, Brigham & Women's Hospital, Boston, MA (T.V.J., S.R., T.A.G.); Center for Health Decision Science (T.V.J., S.A.-G., T.A.G.), Department of Global Health and Population (J.S.), and Center for Population and Development Studies (F.X.G.-O.), Harvard T.H. Chan School of Public Health, Boston, MA; Department of Chemical Pathology, National Health Laboratory Service and Faculty of Health Sciences (N.J.C.) and Medical Research Council/University of the Witwatersrand Rural Public Health and Health Transitions Research Unit, School of Public Health, Faculty of Health Sciences (A.W., F.X.G.-O., S.T.), University of the Witwatersrand, Johannesburg, South Africa; International Network for the Demographic Evaluation of Populations and Their Health Network, Accra, Ghana (F.X.G.-O.)
| | - Stephen Tollman
- From the Department of Cardiovascular Medicine, Brigham & Women's Hospital, Boston, MA (T.V.J., S.R., T.A.G.); Center for Health Decision Science (T.V.J., S.A.-G., T.A.G.), Department of Global Health and Population (J.S.), and Center for Population and Development Studies (F.X.G.-O.), Harvard T.H. Chan School of Public Health, Boston, MA; Department of Chemical Pathology, National Health Laboratory Service and Faculty of Health Sciences (N.J.C.) and Medical Research Council/University of the Witwatersrand Rural Public Health and Health Transitions Research Unit, School of Public Health, Faculty of Health Sciences (A.W., F.X.G.-O., S.T.), University of the Witwatersrand, Johannesburg, South Africa; International Network for the Demographic Evaluation of Populations and Their Health Network, Accra, Ghana (F.X.G.-O.)
| | - Thomas A Gaziano
- From the Department of Cardiovascular Medicine, Brigham & Women's Hospital, Boston, MA (T.V.J., S.R., T.A.G.); Center for Health Decision Science (T.V.J., S.A.-G., T.A.G.), Department of Global Health and Population (J.S.), and Center for Population and Development Studies (F.X.G.-O.), Harvard T.H. Chan School of Public Health, Boston, MA; Department of Chemical Pathology, National Health Laboratory Service and Faculty of Health Sciences (N.J.C.) and Medical Research Council/University of the Witwatersrand Rural Public Health and Health Transitions Research Unit, School of Public Health, Faculty of Health Sciences (A.W., F.X.G.-O., S.T.), University of the Witwatersrand, Johannesburg, South Africa; International Network for the Demographic Evaluation of Populations and Their Health Network, Accra, Ghana (F.X.G.-O.).
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31
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Reiger S, Jardim TV, Abrahams-Gessel S, Crowther NJ, Wade A, Gomez-Olive FX, Salomon J, Tollman S, Gaziano TA. Awareness, treatment, and control of dyslipidemia in rural South Africa: The HAALSI (Health and Aging in Africa: A Longitudinal Study of an INDEPTH Community in South Africa) study. PLoS One 2017; 12:e0187347. [PMID: 29077762 PMCID: PMC5659770 DOI: 10.1371/journal.pone.0187347] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Accepted: 10/18/2017] [Indexed: 12/28/2022] Open
Abstract
Dyslipidemia is a primary driver for chronic cardiovascular conditions and there is no comprehensive literature about its management in South Africa. The objective of this study was to assess the prevalence, awareness, treatment, and control of dyslipidemia in rural South Africa and how they are impacted by different behaviors and non-modifiable factors. To fulfill this objective we recruited for this cohort study adults aged ≥40 years residing in the Agincourt sub-district of Mpumalanga Province. Data collection included socioeconomic and clinical data, anthropometric measures, blood pressure (BP), HIV-status, point-of-care glucose and lipid levels. Framingham CVD Risk Score was ascribed to patients based upon categories for 10 year cardiovascular risk of low (<3%), moderate (≥3% and <15%), high (≥15% and <30%), and very high (≥30%).LDL cholesterol control by risk category was defined according to South African Guidelines. Multivariable logistic regression models were built to identify factors that were significantly associated with dyslipidemia and awareness of dyslipidemia From 5,059 respondents a total of 4247 subjects (83.9%) had their cholesterol levels measured and were included in our analysis. Overall, 67.3% (2860) of these met criteria for dyslipidemia, only 30 (1.05%) were aware of their condition, and only 21 subjects (0.73%) were on treatment. The majority have abnormalities in triglycerides (59.3%). As cardiovascular risk increased the rates of lipid control according to LDL level dropped. Multivariate logistic regression analyses showed that being overweight was predictive of dyslipidemia (OR 1.76; 95%CI 1.51-2.05, p<0.001) and dyslipidemia awareness (OR 2.58; 95%CI 1.19-5.58; p = 0.017). In conclusion, the very low awareness and treatment of dyslipidemia in this cohort indicate a greater need for systematic screening and education within the population and demonstrate that there are multiple opportunities to allay this burden.
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Affiliation(s)
- Sheridan Reiger
- Department of Cardiovascular Medicine, Brigham & Women’s Hospital, Boston, MA, United States of America
| | - Thiago Veiga Jardim
- Department of Cardiovascular Medicine, Brigham & Women’s Hospital, Boston, MA, United States of America
- Center for Health Decision Science, Harvard T.H. Chan School of Public Health, Boston, MA, United States of America
| | - Shafika Abrahams-Gessel
- Center for Health Decision Science, Harvard T.H. Chan School of Public Health, Boston, MA, United States of America
| | - Nigel J. Crowther
- National Health Laboratory Service and Department of Chemical Pathology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Alisha Wade
- Medical Research Council / University of the Witwatersrand Rural Public Health and Health Transitions Research Unit, School of Public Health, Faculty of Health Sciences, Johannesburg, South Africa
| | - F. Xavier Gomez-Olive
- Medical Research Council / University of the Witwatersrand Rural Public Health and Health Transitions Research Unit, School of Public Health, Faculty of Health Sciences, Johannesburg, South Africa
| | - Joshua Salomon
- Department of Global Health and Population, Harvard T.H. Chan School of Public Health, Boston, MA, United States of America
| | - Stephen Tollman
- Medical Research Council / University of the Witwatersrand Rural Public Health and Health Transitions Research Unit, School of Public Health, Faculty of Health Sciences, Johannesburg, South Africa
| | - Thomas A. Gaziano
- Department of Cardiovascular Medicine, Brigham & Women’s Hospital, Boston, MA, United States of America
- Center for Health Decision Science, Harvard T.H. Chan School of Public Health, Boston, MA, United States of America
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32
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Berry KM, Parker WA, Mchiza ZJ, Sewpaul R, Labadarios D, Rosen S, Stokes A. Quantifying unmet need for hypertension care in South Africa through a care cascade: evidence from the SANHANES, 2011-2012. BMJ Glob Health 2017; 2:e000348. [PMID: 29082013 PMCID: PMC5656122 DOI: 10.1136/bmjgh-2017-000348] [Citation(s) in RCA: 91] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Revised: 05/12/2017] [Accepted: 05/15/2017] [Indexed: 11/29/2022] Open
Abstract
Introduction Hypertension has become a major cause of morbidity and premature mortality in South Africa, but population-wide estimates of prevalence and access to care are scarce. Using data from the South African National Health and Nutrition Examination Survey (2011–2012), this analysis evaluates the national prevalence of hypertension and uses a care cascade to examine unmet need for care. Methods Hypertension was defined as blood pressure over 140/90 mm Hg or use of antihypertensive medication. We constructed a hypertension care cascade by decomposing the population with hypertension into five mutually exclusive and exhaustive subcategories: (1) unscreened and undiagnosed, (2) screened but undiagnosed, (3) diagnosed but untreated, (4) treated but uncontrolled and (5) treated and controlled. Multivariable logistic regression models were used to explore factors associated with hypertension prevalence and diagnosis. Results In South Africans aged 15 and above, the age standardised prevalence of hypertension was 35.1%. Among those with hypertension, 48.7% were unscreened and undiagnosed, 23.1% were screened but undiagnosed, 5.8% were diagnosed but untreated, 13.5% were treated but uncontrolled and 8.9% were controlled. The hypertension care cascade demonstrates that 49% of those with hypertension were lost at the screening stage, 50% of those who were screened never received a diagnosis, 23% of those who were diagnosed did not receive treatment and 48% of those who were treated did not reach the threshold for control. Men and older individuals had increased risks of being undiagnosed after controlling for other factors. Conclusions There is significant unmet need for hypertension care in South Africa; 91.1% of the hypertensive population was unscreened, undiagnosed, untreated or uncontrolled. Data from this study provide insight into where patients are lost in the hypertension care continuum and serve as a benchmark for evaluating efforts to manage the rising burden of hypertension in South Africa.
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Affiliation(s)
- Kaitlyn M Berry
- Department of Global Health, Boston University School of Public Health, Boston, Massachusetts, USA
| | - Whadi-Ah Parker
- Population Health, Health Systems and Innovation, Human Sciences Research Council, Cape Town, South Africa
| | - Zandile J Mchiza
- Population Health, Health Systems and Innovation, Human Sciences Research Council, Cape Town, South Africa
| | - Ronel Sewpaul
- Population Health, Health Systems and Innovation, Human Sciences Research Council, Cape Town, South Africa
| | - Demetre Labadarios
- Population Health, Health Systems and Innovation, Human Sciences Research Council, Cape Town, South Africa
| | - Sydney Rosen
- Department of Global Health, Boston University School of Public Health, Boston, Massachusetts, USA.,Department of Internal Medicine, Health Economics and Epidemiology Research Office, School of Clinical Medicine, University of the Witwatersrand, Johannesburg, South Africa
| | - Andrew Stokes
- Department of Global Health, Boston University School of Public Health, Boston, Massachusetts, USA
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