Status report on hypertension in Africa--consultative review for the 6th Session of the African Union Conference of Ministers of Health on NCD's

Nigeria sodium study 2023 policy meeting on dietary sodium reduction in Nigeria

BACKGROUND

In line with the WHO Global Action Plan's objective to achieve a 30% relative reduction in the mean population intake of sodium by 2025, the Nigeria Sodium Study (NaSS) team, which aimed to evaluate the implementation and scale-up of national sodium reduction programme, hosted a policy meeting May 22, 2023, in Abuja, the Federal Capital Territory of Nigeria. The aim was to deliberate on strategies for translating data on salt levels in food and dietary patterns, intending to strengthen sodium policies in Nigeria, with the ultimate goal of producing evidence-based information that can effectively guide strategies and policies for sodium reduction.

METHODS

Policymakers from federal, state, and local government levels attended, as well as representatives from national and international universities and non-governmental organizations. Topics presented and discussed included retail survey data from the NaSS to inform front-of-package labeling, salt targets for packaged food, and best practices for supporting stakeholders in implementing best-practice evidence-informed policymaking.

RESULTS

The meeting brought together 72 participants from 38 organizations, including government ministries and agencies (n = 21), international and non-governmental organizations (n = 6), and international health organizations and institutes (n = 2). Participants took decisive policy actions, including stringent national-level food system monitoring by relevant government agencies, implementing front-of-package labeling for healthier choices, establishing mandatory sodium limits for both packaged and unpackaged foods and school meals, launching diverse sector-wide educational campaigns to reduce salt use, conducting mass mobilization campaigns for awareness, and advocating for salt reduction in fast food outlets. Salt substitutes were also recognized as integral to the comprehensive sodium reduction approach.

CONCLUSION

To advance policy action, stakeholders should prioritize establishing robust monitoring systems, engage in public awareness campaigns, and collaborate with international organizations for insights. Exploring partnerships, addressing funding challenges, and implementing innovative strategies like low-sodium substitutes are crucial steps toward effective sodium reduction policies in Nigeria.

Association Between Hemoglobin Level, Anemia, and Hypertension Among Adults in Northern Sudan: A Community-Based Cross-Sectional Study

Background

Hypertension and anemia are major health problems globally. However, data regarding the association between hypertension and hemoglobin/anemia among adults are few and controversial. Therefore, the current study aimed to investigate the associations between hemoglobin/anemia and hypertension among Sudanese adults.

Methods

A community-based cross-sectional study was conducted in Northern Sudan from September to December 2022. The participants' sociodemographic characteristics were assessed using a questionnaire. Standardized procedures measured participants' weight, height, body mass index (BMI), hemoglobin, and hypertension. Multivariate regression analysis was performed to determine the association between anemia and hypertension.

Results

Three hundred eighty-four adults were enrolled; 195 (50.8%) and 189 (49.2%) were males and females, respectively. The median interquartile age of the enrolled adults of age, BMI, and hemoglobin level was 45.0 (33.0‒55.8) years, 26.6 (22.6‒30.6) kg/m2, and 13.4 (12.4‒14.4) g/dl, respectively. Of 384 adults, 216 (56.3%) had hypertension, and 148 (38.5%) were newly diagnosed hypertensive. Eighty-six adults (22.4%) had anemia. In univariate analysis, while increasing age, being female, being unmarried, having a positive family history of hypertension, and increasing BMI were positively associated with hypertension, anemia was inversely associated with hypertension. Education, occupation, cigarette smoking, and alcohol consumption were not associated with hypertension. In multivariate analysis, age (adjusted odd ratio [AOR] = 1.05, 95% confidence interval [CI] = 1.03‒1.07), BMI (AOR= 1.07, 95% CI = 1.03‒1.12) were inversely associated with hypertension, being female (AOR = 2.92, 95% CI = 1.43‒5.94), positive family history of hypertension (AOR= 1.73, 95% CI = 1.09‒2.75), and hemoglobin level (AOR= 1.34, 95% CI = 1.12‒1.61) were associated with hypertension. Anemia (AOR = 0.58, 95% CI = 0.34‒0.99) was inversely associated with hypertension.

Conclusion

Both anemia and hypertension are major public health problems in Northern Sudan. Anemia is associated with hypertension. Further research is needed to explore the complex association between hemoglobin/anemia and hypertension.

The burden and treatment of non-communicable diseases among healthcare workers in sub-Saharan Africa: a multi-country cross-sectional study

Introduction

Non-communicable diseases (NCDs), the leading cause of death globally, are estimated to overtake communicable diseases in sub-Sahara Africa, where healthcare workers (HCWs) play a crucial role in prevention and treatment, but are in extreme shortage, thereby increasing the burden of NCDs among this specific population. To provide evidence for policy-making, we assessed the NCD burden, associated factors and treatment among HCWs in four sub-Saharan African countries.

Materials and methods

We conducted a cross-sectional study across four sub-Saharan African countries [Côte d'Ivoire (CIV), Democratic Republic of the Congo (DRC), Madagascar (MDG), and Nigeria (NIG)] between February and December 2022. In a standardized questionnaire, sociodemographic, chronic disease and treatment data were self-reported. We estimated the prevalence of (1) at least one chronic disease, (2) hypertension, and used backward elimination logistic regression model to identify risk factors.

Results

We recruited a total of 6,848 HCWs. The prevalence of at least one chronic disease ranged between 9.7% in NIG and 20.6% in MDG, the prevalence of hypertension between 5.4% in CIV and 11.3% in MDG. At most, reported treatment rates reached 36.5%. The odds of each of both outcomes increased with age (at least one chronic disease adjusted odds ratio: CIV: 1.04; DRC: 1.09; MDG: 1.06; NIG: 1.10; hypertension: CIV: 1.10; DRC: 1.31; MDG: 1.11; NIG: 1.11) and with BMI (at least one chronic disease: CIV: 1.10; DRC: 1.07; MDG: 1.06; NIG: 1.08; hypertension: CIV: 1.10; DRC: 1.66; MDG: 1.13; NIG: 1.07). Odds of both outcomes were lower among males, except in CIV. In NIG, the odds of both outcomes were higher among medical doctors and odds of hypertension were higher among those working in secondary care. In MDG, working in secondary care increased and working as auxiliary staff decreased the odds of at least one chronic disease.

Conclusion

The prevalence of self-reported chronic disease varied across the four sub-Saharan countries with potentially very low treatment rates. We identified several individual (age, sex, and BMI) and occupational (profession, level of healthcare) factors that influence the odds of NCDs. These factors should be taken into account when developing interventions addressing the burden and management of NCDs among HCWs.

Scaling-up and scaling-out the Systems Analysis and Improvement Approach to optimize the hypertension diagnosis and care cascade for HIV infected individuals (SCALE SAIA-HTN): a stepped-wedge cluster randomized trial

BACKGROUND

Undiagnosed and untreated hypertension is a main driver of cardiovascular disease and disproportionately affects persons living with HIV (PLHIV) in low- and middle-income countries. Across sub-Saharan Africa, guideline application to screen and manage hypertension among PLHIV is inconsistent due to poor service readiness, low health worker motivation, and limited integration of hypertension screening and management within HIV care services. In Mozambique, where the adult HIV prevalence is over 13%, an estimated 39% of adults have hypertension. As the only scaled chronic care service in the county, the HIV treatment platform presents an opportunity to standardize and scale hypertension care services. Low-cost, multi-component systems-level strategies such as the Systems Analysis and Improvement Approach (SAIA) have been found effective at integrating hypertension and HIV services to improve the effectiveness of hypertension care delivery for PLHIV, reduce drop-offs in care, and improve service quality. To build off lessons learned from a recently completed cluster randomized trial (SAIA-HTN) and establish a robust evidence base on the effectiveness of SAIA at scale, we evaluated a scaled-delivery model of SAIA (SCALE SAIA-HTN) using existing district health management structures to facilitate SAIA across six districts of Maputo Province, Mozambique.

METHODS

This study employs a stepped-wedge design with randomization at the district level. The SAIA strategy will be "scaled up" with delivery by district health supervisors (rather than research staff) and will be "scaled out" via expansion to Southern Mozambique, to 18 facilities across six districts in Maputo Province. SCALE SAIA-HTN will be introduced over three, 9-month waves of intensive intervention, where technical support will be provided to facilities and district managers by study team members from the Mozambican National Institute of Health. Our evaluation of SCALE SAIA-HTN will be guided by the RE-AIM framework and will seek to estimate the budget impact from the payer's perspective.

DISCUSSION

SAIA packages user-friendly systems engineering tools to support decision-making by frontline health workers and to identify low-cost, contextually relevant improvement strategies. By integrating SAIA delivery into routine management structures, this pragmatic trial will determine an effective strategy for national scale-up and inform program planning.

TRIAL REGISTRATION

ClinicalTrials.gov NCT05002322 (registered 02/15/2023).

Prevalence of metabolic syndrome and components in rural, semi-urban and urban areas in the littoral region in Cameroon: impact of physical activity

BACKGROUND

Living areas in developing countries impact seriously lifestyle by modifying energy consumption and energy expenditure. Thus, urbanization is associated with less practice of physical activity (PA), a leading cause of metabolic syndrome (MetS) which prevalence vary in African countries. The present study aimed to assess the effect of PA on MetS according to urbanization level in the littoral region, Cameroon.

METHODS

A cross-sectional study was conducted in three geographical settings (urban, semi-urban, and rural) in the littoral region in Cameroon. A total of 879 participants were included (urban: 372, semi-urban: 195 and rural: 312). MetS was defined according to the International Federation of Diabetes 2009. The level of PA was assessed using the Global Physical Activity questionnaire.

RESULTS

Low level of PA was (P < 0.0001) reported in urban (54.5%), semi-urban (28.7%) and rural (16.9%) and high level in rural area (77.9%). The prevalence of MetS was higher in urban areas (37.2%), then rural (36.8%) and finally semi-urban (25.9%). Hyperglycemia (p = 0.0110), low HDL-c (p < 0.0001) and high triglyceridemia (p = 0.0068) were most prevalent in urban residents. Participants with low level of PA were at risk of MetS (OR: 1.751, 95% CI 1.335-2.731, p = 0.001), hyperglycemia (OR: 1.909, 95% CI 1.335-2.731, p = 0.0004) abdominal obesity(OR: 2.007, 95% CI 1.389-2.900, p = 0.0002), low HDL-c (OR: 1.539, 95% CI 1.088-2.179, p = 0.014) and those with moderate level of PA were protected against high blood pressure(OR: 0.452, 95% CI 0.298-0.686, p = 0.0002) and compared to those with high level of PA. Urban dwellers were at the risk of MetS compared to rural residents (OR: 1.708, 95% CI. 1.277-2.285, p = 0.003) and protected against high blood pressure (OR:0.314, 95% CI 0.212-0.466, p < 0.0001), abdominal obesity (OR: 0.570, 95% CI 0.409-0.794, p = 0.0009), and low HDL-c (OR: 0.725, 95% CI 0.534-0.983, p = 0.038) compared to rural residents.

CONCLUSIONS

MetS was more prevalent in urban dwellers and was associated with a low level of PA.

Association between serum 25-hydroxyvitamin D concentrations and hypertension among adults in North Sudan: a community-based cross-sectional study

BACKGROUND

Globally, hypertension represents a major public health problem. The association between 25-hydroxyvitamin D (25[OH]D) levels and hypertension remains unclear. The current study aimed to investigate the association between serum 25(OH)D levels and hypertension among adults in Sudan.

METHODS

A community-based cross-sectional study was conducted among adults in North Sudan. Sociodemographic and clinical data were collected using a questionnaire and face-to-face interviews. Serum 25(OH)D was measured using an enzyme-linked immunosorbent assay. Multivariate logistic regression and multiple linear regression analyses were performed.

RESULTS

Of the total of 391 participants, 202 (51.7%) were females. The median (interquartile range [IQR]) of participants' ages was 45(32-55) years. Of the total, 219(56.0%) had hypertension. The median (IQR) of serum25(OH)D was 13.3(9.9-19.7) ng/mL, and 295 (75.4%) participants had vitamin D deficiency (< 20 ng/mL). In multivariable logistic regression, the adjusted odds ratio (AOR) for age = 1.05, 95% confidence interval (CI)1.03‒1.061, the AOR for being female = 2.02, 95% CI, 1.12‒3.66, and body mass index was AOR = 1.09, 95% CI, 1.05‒1.14, all of which were significantly associated with hypertension. However, serum 25(OH)D levels were not associated with hypertension (AOR = 1.01, 95% CI 0.99‒1.05, P = 0.317). In multiple linear regression, while systolic blood pressure was negatively associated with 25(OH)D (coefficient = - 0.28, P = 0.017), there was no significant association between serum 25(OH)D level and diastolic blood pressure (coefficient = - 0.10, P = 0.272) or mean blood pressure (coefficient =-0.03, P = 0.686).

CONCLUSION

The current study revealed a negative association between vitamin D and systolic blood pressure. The mechanism of such an association needs further study.

Prevalence of hypertension in a rural community in southeastern Nigeria; an opportunity for early intervention

Hypertension is a leading cause of non-communicable morbidity in Sub Saharan Africa. Recent studies suggest and increase in the prevalence of hypertension in rural Sub-Saharan Africa. Using a three-phase approach, a structured questionnaire was used to determine the prevalence of hypertension in a rural settlement is Enugu State, Southeast Nigeria. Blood pressure measurement was done according to the guidelines of the European Society of Hypertension. Out of 1576 participants aged 18 years and above, 1082 (68.7%) completed the full survey, their blood pressure was measured, and data analyzed. The prevalence of hypertension in this study was 27.6%, (95%CI 25-30.4), similar in males 29.2, (95%CI 24.7-30.4) and females 26.8%, (95%CI 23.5-30.2). p = 0.39. The prevalence of hypertension increased with age reaching a peak of 32.8% (95%CI 26.2-40) in the 40-49 age group, however this was not statistically significant P = 0.22. This age-related increase in the prevalence of hypertension tended towards significance in males (p = 0.05) but not in females (p = 0.44). Awareness of hypertension was 7.2%. Systolic blood pressure positively correlated with older age, higher blood glucose levels and waist-hip ratio. Diastolic blood pressure correlated with the type of work the patients is involved in and blood glucose levels. In conclusion, the prevalence of hypertension in a rural southeastern Nigeria community was 27.6%, however awareness was very low (7.9%). Most participants had mild hypertension thus offering a window of opportunity for public health educators in preventing the complications of hypertension. There is therefore the need for awareness campaigns to be intensified in rural communities.

Pharmacogenomics of Hypertension in Africa: Paving the Way for a Pharmacogenetic-Based Approach for the Treatment of Hypertension in Africans

In Africa, the burden of hypertension has been rising at an alarming rate for the last two decades and is a major cause for cardiovascular disease (CVD) mortality and morbidity. Hypertension is characterised by elevated blood pressure (BP) ≥ 140/90 mmHg. Current hypertension guidelines recommend the use of antihypertensives belonging to the following classes: calcium channel blockers (CCB), angiotensin converting inhibitors (ACEI), angiotensin receptor blockers (ARB), diuretics, β-blockers, and mineralocorticoid receptor antagonists (MRAs), to manage hypertension. Still, a considerable number of hypertensives in Africa have their BP uncontrolled due to poor drug response and remain at the risk of CVD events. Genetic factors are a major contributing factor, accounting for 20% to 80% of individual variability in therapy and poor response. Poor response to antihypertensive drug therapy is characterised by elevated BPs and occurrence of adverse drug reactions (ADRs). As a result, there have been numerous studies which have examined the role of genetic variation and its influence on antihypertensive drug response. These studies are predominantly carried out in non-African populations, including Europeans and Asians, with few or no Africans participating. It is important to note that the greatest genetic diversity is observed in African populations as well as the highest prevalence of hypertension. As a result, this warrants a need to focus on how genetic variation affects response to therapeutic interventions used to manage hypertension in African populations. In this paper, we discuss the implications of genetic diversity in CYP11B2, GRK4, NEDD4L, NPPA, SCNN1B, UMOD, CYP411, WNK, CYP3A4/5, ACE, ADBR1/2, GNB3, NOS3, B2, BEST3, SLC25A31, LRRC15 genes, and chromosome 12q loci on hypertension susceptibility and response to antihypertensive therapy. We show that African populations are poorly explored genetically, and for the few characterised genes, they exhibit qualitative and quantitative differences in the profile of pharmacogene variants when compared to other ethnic groups. We conclude by proposing prioritization of pharmacogenetics research in Africa and possible adoption of pharmacogenetic-guided therapies for hypertension in African patients. Finally, we outline the implications, challenges, and opportunities these studies present for populations of non-European descent.

Determinants of Self-Care and Home-Based Management of Hypertension: An Integrative Review

Introduction

Patients with hypertension should perform diverse self-care activities that incorporate medication adherence and lifestyle modification, such as no smoking or alcohol, weight reduction, a low-salt diet, increased physical activity, increased self-monitoring, and stress reduction, for effective management at home.

Aim

This systematic review assessed and synthesized the factors that are associated with self-care and home-based management of hypertension.

Methods

The search of the articles incorporated the population, intervention, comparison, and outcome (PICO) framework. The literature was searched in four databases (PubMed, the Cumulative Index to Nursing and Allied Health Literature [CINAHL], Embase, and Web of Science) until 2022. The articles retrieved and searched from the reference list (531) were transported to EndNote version 20, and duplicates (19) were identified and removed to produce 512 titles. Following the eventual title, abstracts, and full-text screening, 13 articles were appropriate for this study. The narrative and thematic data analysis were used to analyze and integrate the data.

Results

The analysis showed five themes were associated with home-based self-care and blood pressure (BP) control among patients diagnosed with hypertension. These themes that emerged were (1) the prevalence of control of BP, (2) sociodemographic factors, (3) treatment-related factors, (4) knowledge of management, and (5) knowledge of the prevention of risk factors of hypertension. The demographic factors influencing home-based self-care for hypertension were gender, age, and socioeconomic status. In contrast, the treatment factors were duration of hypertension treatment, medication burden, and medication adherence. Other factors that influenced self-care were inadequate knowledge of BP management, follow-up care, and risk factors of hypertension.

Conclusion

Hypertension self-care interventions must incorporate individual, societal, and cultural perspectives in increasing knowledge and improving home-based hypertension management. Therefore, well-designed clinical and community-dwelling interventions should integrate personal, social, and cultural perspectives to improve behavior in the home management of hypertension by increasing knowledge and self-efficacy.

Ghana's Adherence to PASCAR's 10-Point Action Plan towards Hypertension Control: A Scoping Review

The continuous increase in the prevalence of hypertension in Ghana has led to various interventions aimed at controlling the disease burden. Nonetheless, these interventions have yielded poor health outcomes. Subsequently, the Pan-African Society of Cardiology (PASCAR), established a 10-point action plan for inclusion in policies to aid control of hypertension. This scoping review assessed the adherence of health policies to the 10-point action plan towards hypertension control/reduction in Ghana. Eight health policies met the inclusion criteria and were assessed. The programme evaluation and policy design framework were used for synthesis and analysis of extracted data. Overall, there was poor adherence to hypertension control observed in the policies. Specifically, there were low levels of integrating hypertension control/reduction measures, a poor task-sharing approach, and poor financial resource allocations to tackle hypertension control/reduction in most of the policies. There was also low support for research to produce evidence to guide future interventions. For Ghana to achieve the global target of reducing hypertension by the year 2025, its health policies must adhere to evidence-based interventions in hypertension management/control. The study recommends a follow-up study among hypertension patients and healthcare professionals to evaluate the factors militating against hypertension management/control in Ghana.

Factors associated with poor medication adherence during COVID-19 pandemic among hypertensive patients visiting public hospitals in Eastern Ethiopia: a cross-sectional study

OBJECTIVE

This study aimed to assess factors associated with poor medication adherence during the COVID-19 pandemic among hypertensive patients visiting public hospitals in Eastern Ethiopia.

SETTING

Hospital-based cross-sectional study was conducted in Harari regional state and Dire Dawa Administration from 1 January to 30 February 2022. Both settings are found in Eastern Ethiopia.

PARTICIPANTS

A total of 402 adult hypertensive patients who visited the chronic diseases clinic for follow-up were included in the study.

MAIN OUTCOME MEASURES

The main outcome measure was poor medication adherence during the COVID-19 pandemic.

RESULTS

The level of poor antihypetensive medication adherence was 63% (95% CI 48.1 to 67.9). Patients who had no formal education (adjusted OR (AOR)=1.56, 95% CI 1.03 to 4.30), existing comorbid conditions (AOR=1.98, 95% CI 1.35 to 4.35), self-funded for medication cost (AOR=2.05, 95% CI 1.34 to 4.73), poor knowledge about hypertension (HTN) and its treatment (AOR=2.67, 95% CI 1.45 to 3.99), poor patient-physician relationship (AOR=1.22, 95% CI 1.02 to 4.34) and unavailability of medication (AOR=5.05, 95% CI 2.78 to 12.04) showed significant association with poor medication adherence during the pandemic of COVID-19.

CONCLUSION

The level of poor antihypertensive medication adherence was high in this study. No formal education, comorbidity, self-funded medication cost, poor knowledge about HTN and its treatment, poor patient-physician relationship, and unavailability of medication during the COVID-19 pandemic were factors significantly associated with poor adherence to antihypertensive medication. All stakeholders should take into account and create strategies to reduce the impact of the COVID-19 pandemic on medication adherence of chronic diseases.

Factors associated with positive attitude towards hypertension control in Hawassa city administration: Community based cross-sectional study

Background and Aims

In low-income countries where there is shortage of appropriate medical care to manage hypertension (HTN), understanding dynamics of communities' knowledge and attitude to prevent through lifestyle is crucial. Despite this fact, there was limited information on levels of awareness and attitude towards HTN and its prevention in the study setting. So, this study was conducted to assess level and factors associated with positive attitude in Hawassa city, Southern Ethiopia.

Methods

A community level study using cross-sectional design was done in Hawassa city administration in 2017. Six hundred and twelve respondents were selected using a multi-stage sampling technique. Knowledge and attitude were assessed using multiple questions and responses were categorized considering mean as cutoff points. Descriptive statistics and binary logistic regression analysis at 95% confidence interval (CI) were performed.

Results

The level of mean score of knowledge was 62.7% (SD = 22.2) [95% CI: 60.9-64.4] while that of attitude was 68.1% (SD = 8.8) [95% CI: 67.4-68.8]. Divorced/widowed respondents were 73% less likely to have positive attitude as compared to married respondents (adjusted odds ratio [AOR] 95% CI: 0.27 [0.14-0.51], p-<0.001). Respondents who attended primary, secondary and higher education were 2.84 times (AOR 95% CI: [1.48-5.42], p 0.002), 5.59 times (AOR 95% CI: [2.87-10.89], p-<0.001) and 9.28 times (AOR 95% CI: [4.39-19.65], p-<0.001) more likely to have positive attitude as compared to those who cannot read and write. Moreover, respondents who have good knowledge were 2.24 times (AOR 95% CI: [1.49-3.37], p-<0.001) more likely to have positive attitude as compared with those who have poor knowledge.

Conclusion

The overall levels of knowledge and attitude related to HTN and its prevention were moderate but not adequate to bring lifestyle modifications required to prevent and control HTN. Health promotion activities should be strengthened to improve awareness and attitude that are pillars to bring lifestyle modification practices.

Developing and Validating Risk Algorithm for Hypertension in South Africa: Results from a Nationally Representative Cohort (2008-2017)

Introduction

There is compelling evidence of significant country-level disparities where African countries, particularly South Africa, have the highest hypertension rates in the world.

Aim

To develop and validate a simple risk scoring algorithm for hypertension in a large cohort (80,270) of South African men and women.

Methods

Multivariable logistic regression models were used to build our hypertension risk scoring algorithm and validated externally and internally using the standard statistical techniques. We also compared our risk scores with the results from the Framingham risk prediction model for hypertension.

Results

Six factors were identified as the significant correlates of hypertension: age, education, obesity, smoking, alcohol intake and exercise. A score of ≥ 25 (out of 57) for men and ≥ 35 (out of 75) for women were selected as the optimum cut-points with 82% (43%) and 83% (49%) sensitivity (specificity) for males and females, respectively in the development datasets. We estimated probabilities of developing hypertension using the Framingham risk prediction model, which were higher among those with higher scores for hypertension.

Conclusions

Identifying, targeting and prioritising individuals at highest risk of hypertension will have significant impact on preventing severe cardiometabolic diseases by scaling up healthy diet and life-style factors. Our six-item risk scoring algorithm may be included as part of hypertension prevention and treatment programs by targeting older individuals with high body fat measurements who are at highest risk of developing hypertension.

Supplementary Information

The online version contains supplementary material available at 10.1007/s40292-022-00534-5.

Hypertensive eye disease

Hypertensive eye disease includes a spectrum of pathological changes, the most well known being hypertensive retinopathy. Other commonly involved parts of the eye in hypertension include the choroid and optic nerve, sometimes referred to as hypertensive choroidopathy and hypertensive optic neuropathy. Together, hypertensive eye disease develops in response to acute and/or chronic elevation of blood pressure. Major advances in research over the past three decades have greatly enhanced our understanding of the epidemiology, systemic associations and clinical implications of hypertensive eye disease, particularly hypertensive retinopathy. Traditionally diagnosed via a clinical funduscopic examination, but increasingly documented on digital retinal fundus photographs, hypertensive retinopathy has long been considered a marker of systemic target organ damage (for example, kidney disease) elsewhere in the body. Epidemiological studies indicate that hypertensive retinopathy signs are commonly seen in the general adult population, are associated with subclinical measures of vascular disease and predict risk of incident clinical cardiovascular events. New technologies, including development of non-invasive optical coherence tomography angiography, artificial intelligence and mobile ocular imaging instruments, have allowed further assessment and understanding of the ocular manifestations of hypertension and increase the potential that ocular imaging could be used for hypertension management and cardiovascular risk stratification.

Multilevel modeling, prevalence, and predictors of hypertension in Ghana: Evidence from Wave 2 of the World Health Organization's Study on global AGEing and adult health

BACKGROUND AND AIMS

Hypertension is a major public health issue, an important risk factor for cardiovascular diseases and stroke, especially in developing countries where the rates remain unacceptably high. In Africa, hypertension is the leading driver of cardiovascular disease and stroke deaths. Identification of critical risk factors of hypertension can help formulate targeted public health programs and policies aimed at reducing the prevalence and its associated morbidity, disability, and mortality. This study attempts to develop multilevel regression, an in-depth statistical model to identify critical risk factors of hypertension.

METHODS

This study used data on 4667 individuals aged ≥18 years from the nationally representative World Health Organization Study on global AGEing and adult health (SAGE) Ghana Wave 2 conducted in 2014/2015. Multilevel regression modeling was employed to identify critical risk factors for hypertension based on systolic blood pressure (SBP) (ie, SBP > 140 mmHg). Of the 4667, 27.3% were hypertensive. Final data on 4381 individuals residing in 3790 households were analyzed using multilevel models, and results were presented as adjusted odds ratios (aOR) and their associated 95% confidence intervals (CI).

RESULTS

Risk factors for hypertension identified were age (aOR) = 5.4, 95% CI: 4.11-7.09), obesity (aOR = 1.51, 95% CI: 1.19-1.91), marital status (aOR = 0.75, 95% CI: 0.64-0.89), perceived health state (moderate; aOR = 1.38, 95% CI: 1.15-1.65 and bad/very bad; aOR = 1.35, 95% CI: 1.0-1.83), and difficulty with self-care (aOR = 1.64, 95% CI: 1.1-2.44). We found unobserved significant differences in the likelihood of hypertension prevalence between different households.

CONCLUSION

Addressing the problem of obesity, targeting specific interventions to those aged over 50 years, and improvement in the general health of Ghanaians are paramount to reducing the prevalence and its associated morbidity, disability, and mortality. Lifestyle modification in the form of dietary intake, knowledge provision supported with strong public health message, and political will could be beneficial to the management and prevention of hypertension.

Epidemiological and clinical profile of hypertensive octogenarian patients and factors associated with uncontrolled hypertension: observational study of 346 patients

Introduction

hypertension (HTN) is the main risk factor for most morbidities of elderly subjects. The objective of this study was to identify the epidemiological and clinical characteristics of hypertension in octogenarians and to identify the factors associated with uncontrolled hypertension in this population.

Methods

we used data collected in the outpatient cardiology department of the University Hospital of Sfax between 15^th April 2019 and 15^th May 2019 as part of the National Tunisian Registry of Hypertension. We included in our study patients aged 80 years or more with hypertension. We described the epidemiological and clinical profile of this population, and we studied the associations between uncontrolled hypertension and socio-demographic, lifestyle, clinical and therapeutic factors using logistic regression models.

Results

we included 346 subjects (45.1% (n=156) male and 54.9% (n=190) female), with a mean age of 84.36 (SD 4.01) years. More than half of them had uncontrolled hypertension. Dyslipidemia was the most common cardiovascular risk factor found in 43.6 % (n=151) of patients followed by diabetes (35.5%, n=122). One-third of patients had a history of coronary artery disease and/or stroke. Renal failure and kalemia disorders were observed, respectively, in 12.1% (n=42) and 25.2% (n=40) of patients. In multivariate analysis, factors associated with uncontrolled hypertension (HTN) were male sex (adjusted odds ratio (aOR): 1.663, 95% confidence interval (CI): 1.045-2.647; p=0.032), diabetes (aOR: 1.66, 95%CI: 1.031-2.688; p=0.037,) and poor adherence to blood pressure (BP) medications (aOR: 1.960, 95%CI: 1.195-3.214; p=0.008).

Conclusion

our results showed that more than half of octogenarian hypertensive patients did not reach the BP target and that poor adherence to BP medications was the main factor of uncontrolled HTN. In this population, the presence of other comorbidities and poor adherence to BP medications are very common. Systematic research for behaviors suggesting poor medication adherence should be a priority for physicians caring for these patients.

Evaluation of Anthropometric Indices for Screening Hypertension Among Employees of Mizan Tepi University, Southwestern Ethiopia

BACKGROUND

Globally, hypertension is becoming a serious problem affecting the health and wellbeing of the adult population. Anthropometric indices like body mass index (BMI), waist circumference (WC), and waist-to-hip ratio (WHR) have long been utilized to screen hypertension; in contrast, other evidence indicates the superior utility of waist-to-height ratio (WHtR) to screen hypertension. There are inconclusive results from different studies done in different settings regarding the best screening index for hypertension. In addition, there is a paucity of information on the evaluation of anthropometric indices for screening hypertension in the study area. Therefore, this study evaluates the utility of anthropometric indices for screening hypertension among Mizan Tepi University employees, southwestern Ethiopia.

METHODS

An institution-based cross-sectional study was conducted among Mizan Tepi University employees. A gender-based stratified simple random sampling technique was used to select 585 employees. Logistic regression analysis was conducted to assess the association between anthropometric indices and hypertension. Receiver operating characteristic curve (ROC) was employed to evaluate anthropometric indices for screening hypertension, and optimal cutoff points were also developed based on Youden index (sensitivity + specificity - 1) and presented with sensitivity, specificity, positive predictive value (PPV), and negative predictive values (NPV).

RESULTS

The overall prevalence of hypertension was 20.9%, which was 22.5% in males and 18.7% in females. Among males, WHtR, WHR, and BMI were significantly associated with hypertension, while, in females, only BMI was associated with hypertension. WHtR had a higher screening ability for hypertension followed by WC in both sexes. For males, the cutoff point for WHR, WC, BMI, and WHtR for screening hypertension was 0.897, 85.17cm, 24.6kg/m2, and 0.51, respectively. In females, the cutoff point developed for screening hypertension for WHR, WC, BMI, and WHtR were 0.92, 85.67cm, 24.8kg/m2, and 0.52, respectively.

CONCLUSION

The waist-to-height ratio was found to be the best obesity index to screen hypertension than BMI, WC, and WHR. The finding supports the use of WHtR for screening hypertension in resource-limited settings.

Prevalence of hyperhomocysteinaemia, selected determinants and relation to hypertension severity in Northern-Nigerian hypertensives: the ABU homocysteine survey

Background

This study aimed at evaluating the prevalence of hyperhomocysteinaemia in Northern-Nigerian hypertensives and its association with hypertension severity and some major determinants as data regarding these are lacking in sub-Saharan Africa.

Method

A Community-based cross-sectional study done on 120 randomly-selected hypertensive patients who responded to an ABU radio frequency modulated invitation for free health-screening at the Ahmadu Bello University (ABU) Medical Centre from January 2016 to June 2016. The percentage of participants with high homocysteine levels, their anthropometric parameters and blood pressures were determined. Plasma homocysteine (hcy) was classified as normal (5–15), moderate (>15–30), intermediate (31–100) and severe (>100) µmol/L. Kruskal-Wallis test was applied and log-transformed homocysteine (Ln₁₀Homocysteine) was correlated with systolic and diastolic blood pressures as well as age, body mass index, fasting blood glucose, glomerular filtration rate, hypertension duration and Ln₁₀folate in males and females using the Pearson's Correlation analysis.

Results

There were 83(69.2%) females and 37(30.8%) males with Median homocysteine of 20.8 µmol/L and 22.0 µmol/L respectively (p=0.003). Hyperhomocysteinaemia was found in 118(98.3%) hypertensives while 2(1.7%) subjects had normo-homocysteinaemia. Moderate hyperhomocysteinaemia (Median, 20.8 µmol/L) was identified in 105(87.5%) and intermediate (Median, 40 µmol/L) in 13(10.8%) (p<0.001). No subject had severe hyperhomocysteinaemia. Homocysteine was higher (p=0.003) in subjects with Stage 2 systolic hypertension. Ln₁₀Homocysteine was significantly (p<0.001) correlated with blood pressure (SBP: r=0.45; DBP: r=0.40) and age (r=0.33).

Conclusion

The prevalence of hyperhomocysteinaemia in North-Western Nigerian hypertensives is high as against normal healthy controls. Plasma homocysteine is higher with severe systolic hypertension and positively associated with age.

Funding

No specific grants but Micro Nova Pharmaceuticals Limited, Nigeria and Emzor Pharmaceutical Industries, Lagos, Nigeria supported with drugs.

Burden of Undiagnosed Hypertension among Adults in Urban Communities of Southwest Ethiopia

Background

Hypertension (HTN) is the leading risk factor for mortality due to cardiovascular diseases, it accounts for 7% of global disability adjusted life years. In 2015, it was estimated that around 1.13 billion adults had HTN globally with a high prevalence in low and middle-income countries where the health system is weak to diagnose, treat, and control HTN. Most people with HTN are asymptomatic and go undiagnosed for years. Therefore, the aim of this study was to assess the burden of undiagnosed HTN among adults in urban communities of Southwest Ethiopia.

Methods

A community-based cross-sectional study involving 915 adults from June 17 to July 27, 2019 was performed. WHO STEPS questionnaire was used to collect data, and the collected data were entered using Epi Data version 3.1and analyzed using SPSS version 20, respectively. Binary logistic regression was used to check for a possible association between outcome and independent factors. P-value <0.05 and 95% CI were used on multivariable logistic regression analysis as threshold for significant statistical association.

Results

Undiagnosed HTN in the study area was 21.2% (194). Age (AOR=1.04, 95% CI=1.02–1.05), BMI with overweight (AOR=2.52, 95% CI=1.35–4.71), triglyceride (AOR=1.83, 95% CI=1.29–2.59), and waist to hip ratio (AOR=1.62, 95% CI=1.03–2.54) were factors significantly associated with HTN.

Conclusion

As compared to studies performed before, the risk of undiagnosed HTN in the current study was high. Age, BMI, triglyceride, and waist to hip ratios were found to be the significant factors for it. Preventing the risk factors and screening of HTN should be promoted for early detection, prevention, and treatment of the burden of the disease on the population.

Tobacco Use and Risk Factors for Hypertensive Individuals in Kenya

This study aimed to examine the association between hypertension and tobacco use as well as other known hypertensive risk factors (BMI, waist–hip ratio, alcohol consumption, physical activity, and socio-economic factors among adults) in Kenya. The study utilized the 2015 Kenya STEPs survey (adults aged 18–69) and investigated the association between tobacco use and hypertension. Descriptive statistics, correlation, frequencies, and regression (linear and logistic) analyses were used to execute the statistical analysis. The study results indicate a high prevalence of hypertension in association with certain risk factors—body mass index (BMI), alcohol, waist–hip ratio (WHR), and tobacco use—that were higher in males than females among the hypertensive group. Moreover, the findings noted an exceptionally low awareness level of hypertension in the general population. BMI, age, WHR, and alcohol use were prevalent risks of all three outcomes: hypertension, systolic blood pressure, and diastolic blood pressure. Healthcare authorities and policymakers can employ these findings to lower the burden of hypertension by developing health promotion and intervention policies.

Prevalence and associated factors of hypertension among adults with diabetes mellitus in northern Sudan: a cross-sectional study

Background

Hypertension and diabetes mellitus (DM), are highly prevalent worldwide health non-communicable diseases, and are associated with chronic complications. The co-existence of both conditions accelerates the related complications and increases morbidities and mortalities. A cross-sectional study was conducted in Nahr an Nil State (River Nile State) in Sudan between May and August 2018 to identify the prevalence of hypertension and risk factors among patients with DM in that region.

Results

The median (interquartile) age of the 1,973 enrolled patients was 58.0 (50.0‒65.0) years, and 818 (45.6%) were males. The median (interquartile) duration of diabetes was 5.0 (3.0‒9.0) years. Of the 1,973 enrolled participants, 21.7%, 1.3%, 37.1%, and 39.9% were normal weight, underweight, overweight, and obese, respectively. Of 1,973 854 (47.6%) patients also had hypertension. Logistic regression analyses showed that elderly patients (adjusted odds ratio [AOR] = 1.03, 95%; confidence interval [CI] = 1.02‒1.04), males (AOR = 2.96, 95%; CI = 2.15‒4.07), employed patients (AOR = 1.92, 95%; CI = 1.38‒2.70), obese patients (AOR = 1.59, 95%; CI = 1.21‒2.08), and patients with diabetic foot (DF) (AOR = 2.45, 95%; CI = 1.72‒3.47) were at higher risk for hypertension. Conversely, patients with Type 2 DM (T2DM) (AOR = 0.63, 95%; CI = 0.50‒0.80) were at lower risk for hypertension. There was no significant association between overweight, uncontrolled DM, and hypertension.

Conclusion

This study showed a high prevalence of hypertension among patients with DM. Notably, older age, male gender, employment, duration of DM, DF, underweight, and obesity were significant predictors of hypertension among patients with DM.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12872-021-01983-x.

The last frontier for global non-communicable disease action: The emergency department-A cross-sectional study from East Africa

Introduction

Deaths due to non-communicable diseases (NCDs) have surpassed those due to communicable diseases globally and are projected to do so in Africa by 2030. Despite demonstrated effectiveness in high-income country (HIC) settings, the ED is a primary source of NCD care that has been under-prioritized in Africa. In this study, we assess the burden of leading NCDs and NCD risk factors in Kenyan Casualty Department patients to inform interventions targeting patients with NCDs in emergency care settings.

Materials and methods

Using the WHO STEPwise approach to surveillance (STEPS) tool and the Personal Health Questionnaire (PHQ-9), we conducted a survey of 923 adults aged 18 and over at Kenyatta National Hospital Emergency Department (KNH ED) between May-October 2018. Age, income, household size(t-test), sex, education, marital status, work status, and poverty status (chi-squared test or fisher’s exact test) were assessed using descriptive statistics and analyzed using covariate-adjusted logistic analysis.

Results

Over a third of respondents had hypertension (35.8%, n = 225/628), 18.3% had raised blood sugar or diabetes (18.3%, n = 61/333), and 11.7% reported having cardiovascular disease (11.7%, n = 90/769). Having lower levels of education was associated with tobacco use (OR 6.0, 95% CI 2.808–12.618, p < 0.0001), while those with higher levels of education reported increased alcohol use (OR 0.620 (95% CI 0.386–0.994, p = 0. 0472). While a predominant proportion of respondents had had some form of screening for either hypertension (80.3%, n = 630/772), blood sugar (42.6%, n = 334/767) or cholesterol (13.9%, n = 109/766), the proportion of those on treatment was low, with the highest proportion being half of those diagnosed with hypertension reporting taking medication (51.6%, n = 116/225).

Conclusions

This study establishes the ED as a high-risk population with potential for high impact in East Africa, should targeted interventions be implemented. Comprehension of the unique epidemiology and characteristics of patients presenting to the ED is key to guide care in African populations.

Adherence to antihypertensive medications and associated factors among hypertensive patients in Ethiopia: Systematic review and meta-analysis

The foundation of controlling hypertension is adherence to antihypertensive medication adherence. This systematic review and meta-analysis aimed to assess the magnitude and associated factors of adherence to antihypertensive medication among adult hypertensive patients in Ethiopia. A comprehensible bibliographic searching was conducted from PubMed, EMBASE, Scopus, and Web of Science core collection. All published and unpublished studies that had been accessible before 31 May 2020, and written in English were eligible. Joanna Briggs Institute assessment tool was used to evaluate the quality of the findings of the included studies. Stata software 16.0 was used to analyze the data. Study-specific estimates were pooled to determine the overall prevalence estimate across studies using a random-effects meta-analysis model. Publication bias and heterogeneity were checked. Fourteen studies with a total of 4938 hypertensive patients were included in the final systematic review and meta-analysis. The pooled prevalence of medication adherence among hypertensive patients in Ethiopia was 65.41% (95% confidence interval: 58.91-71.91). Sub-group analysis shown that the pooled prevalence of medication adherence was the highest (69.07%, 95% confidence interval: 57.83-80.31, I ² = 93.51) among studies using questionnaire technique whereas the lowest in Morisky Medication Adherence Scale eight-items (60.66%, 95% confidence interval: 48.92-72.40, I ² = 97.16). Moreover, medication adherence was associated with the presence of comorbidities (pooled odds ratio = 0.23, 95% confidence interval: 0.07-0.38, p = 0.030, I ² = 54.9%) and knowledge about the disease and its management (pooled odds ratio = 2.98, 95% confidence interval: 1.72-4.24, p = 0.04, I ² = 55.55%) but not with place of residence (pooled odds ratio = 1.22, 95% confidence interval: 0.51-1.93, p = 0.00, I ² = 76.9%). Despite a lack of uniformity among included studies, adherence to antihypertensive medication among the hypertensive population in Ethiopia was moderate. The presence of comorbidities and/or complications reduced the odds of adherence whereas having good knowledge about the disease increased chance of medication adherence among hypertensive patients.

The role of dietary salt and alcohol use reduction in the management of hypertension

Introduction: Despite the improved treatment protocol of hypertension, the magnitude of the disease and its related burden remains raised. Hypertension makes up the leading cause of stroke, kidney disease, arterial disease, eye disease, and cardiovascular disease (CVD) growth. Areas covered: This review provides the overview of the role of dietary salt and alcohol use reduction in the management of hypertension, a brief history of alcohol, the vascular endothelium functions, the effects of alcohol use on blood pressure (BP), the mechanisms of alcohol, brief history of salt, the effects of dietary salt intake on BP, and the mechanisms of salt. Expert opinion: Studies found that high dietary salt intake and heavy alcohol consumption have a major and huge impact on BP while both of them have been identified to increase BP. Also, they raise the risk of hypertension-related morbidity and mortality in advance. On the other way, the dietary salt and alcohol use reduction in the management of hypertension are significant in the control of BP and its related morbidity and mortality. Further, studies suggested that the dietary salt and alcohol use reductions are the cornerstone in the management of hypertension due to their significance as part of comprehensive lifestyle modifications.

Antihypertensive Medication Adherence and Associated Factors: A Cross-Sectional Analysis of Patients Attending a National Referral Hospital in Asmara, Eritrea

BACKGROUND

Recent research suggests that poor adherence to antihypertensive medication (AHM) is a major problem in the management of hypertension. This study was therefore designed to evaluate the frequency of AHM and associated risk factors in patients attending a national referral hospital in Asmara, Eritrea.

METHODS

A total of 335 respondents (females: 222 (66.3%) participated in this cross-sectional study. Adherence to Medication was evaluated using a modified version of the Medication Adherence Report Scale (MARS). Additional data were abstracted from patients' medical records and a WHO STEPwise questionnaire.

RESULTS

The mean (±SD) age of the study participants was 59.65 (±12.20) years (females: 56.82 (±9.95) vs males: 57.17 (±9.60) years, p-value=0.001). Similarly, the median (IQR) for diastolic blood pressure (DBP) and systolic blood pressure (SBP) were 85.00 mmHg (IQR: 80.00-90.00 mmHg) and 145.00 mmHg (IQR: 130.00-160.00 mmHg), respectively. Overall, 246 (73.4%) and 244 (72.8%) participants had poor knowledge and poor adherence to AHM, respectively. In the multivariate analysis, factors associated with increased odds of poor adherence to AHM included sex (females: adjusted odds ratio (aOR): 4.95; 95% CI: 1.52-16.11, p value=0.008); employment status (Ref: employed/NGO) (self-employed: aOR: 1.95; 95% CI: 0.45-8.48, p-value=0.373) (housewife: aOR: 0.13; 95% CI: 0.04-0.413, p-value=0.001) (unemployed: aOR: 1.38; 95% CI:0.32-5.98; p-value=0.670); lack of attendance of health talk at the clinic (aOR: 2.33; 95% CI: 1.17-4.63; p-value=0.016); high cost of transportation (yes: aOR: 6.87; 95% CI: 3.25-14.52; p-value<0.001); knowledge (poor: aOR: 6.23; 95% CI: 2.36-18.05, p-value<0.001) and hypertension stage (Stage 3: aOR: 5.55; 95% CI, 1.44-21.37, p-value=0.013). Low level of knowledge regarding hypertension-related complications or associated risk factors was also noted.

CONCLUSION

The high level of poor adherence to anti-hypertension medications and low level of knowledge on hypertension should raise concern. Overall, decentralization of health care services and educational support are vital intervention pathways in this population.

Prevalence of hypertension and its determinants in Ethiopia: A systematic review and meta-analysis

INTRODUCTION

Hypertension is a major public health problem globally and it is a leading cause of death and disability in developing countries. This review aims to estimate the pooled prevalence of hypertension and its determinants in Ethiopia.

METHODS

A systematic literature search was conducted at the electronic databases (PubMed, Hinari, and Google Scholar) to locate potential studies. Heterogeneity between studies checked using Cochrane Q test statistics and I2 test statistics and small study effect were checked using Egger's statistical test at 5% significance level. Sensitivity analysis was checked. A random-effects model was employed to estimate the pooled prevalence of hypertension and its determinants in Ethiopia.

RESULTS

In this review, 38 studies that are conducted in Ethiopia and fulfilled the inclusion criteria with a total number of 51,427 study participants were reviewed. The overall pooled prevalence of hypertension in the country was 21.81% (95% CI: 19.20-24.42, I2 = 98.35%). The result of the review also showed that the point of prevalence was higher among males (23.21%) than females (19.62%). When we see the pervasiveness of hypertension from provincial perspective; the highest prevalence of hypertension was observed in Addis Ababa (25.35%) and the lowest was in Tigray region (15.36%). In meta-regression analysis as the mean age increases by one year, the likelihood of developing hypertension increases by a factor of 0.58 times (β = 0.58, 95% CI: 0.31-0.86, R2 = 36.67). Male sex (OR = 1.29, 95% CI: 1.03-1.61, I2 = 81.35%), age > 35 years (OR = 3.59, 95% CI: 2.57-5.02, I2 = 93.48%), overweight and/or obese (OR = 3.34, 95% CI: 2.12-5.26, I2 = 95.41%), khat chewing (OR = 1.42, 95% CI: I2 = 62%), alcohol consumption (OR = 1.50, 95% CI: 1.21-1.85, I2 = 64%), family history of hypertension (OR = 2.56, 95% CI: 1.64-3.99, I2 = 83.28%), and family history of diabetes mellitus (OR = 3.69, 95% CI: 1.85-7.59, I2 = 89.9%) are significantly associated with hypertension.

CONCLUSION

Hypertension is becoming a major public health problem in Ethiopia. Nearly two out of ten individuals who are older than 18 years living with hypertension. Sex, age, overweight and/or obese, khat chewing, alcohol consumption, and family history of hypertension and diabetes mellitus are statistically significant determinant factors for hypertension in Ethiopia. Primary attention should be given for behavioral risk factors to tackle the alarming increase of hypertension in Ethiopia.

Self-care practice and associated factors among hypertensive patients in public health facilities in Harar Town, Eastern Ethiopia: A cross-sectional study

Background:

Self-care practice is the activity that a hypertensive patient undertakes intending to improve their health. Poor self-care practice leads to uncontrolled hypertension. Therefore, strategies designed to prevent and control hypertension-related death, disability, and morbidity should consider the level of the patient’s self-care practice and risk factors. This study assessed self-care practice and associated factors among hypertensive patients in public health facilities of Harar Town in eastern Ethiopia.

Method:

An institution-based cross-sectional study was conducted among 398 randomly selected hypertensive patients from 25 March 2019 to 16 April 2019. Pretested structured questionnaires adapted from validated tools were used to collect data from participants using electronic Open Data Kit software through face-to-face exit interview. Data were analyzed by SPSS version 24. Bivariable and multivariable logistic regression analyses were conducted to identify factors associated with self-care practice. Adjusted odds ratio with 95% confidence interval was used to report association and the significance was declared at p-value < 0.05.

Results:

Level of good self-care practice was 29.9% (95% confidence interval: 25.3% and 34.7%). Age ⩾ 60 years (adjusted odds ratio = 3.4, 95% confidence interval: 1.2 and 9.3), formal education (adjusted odds ratio = 2.3, 95% confidence interval: 1.3 and 4.2), absence of comorbidities (adjusted odds ratio = 1.8, 95% confidence interval: 1.1 and 3.1), adequate knowledge about hypertension (adjusted odds ratio = 4.7, 95% confidence interval: 2.5 and 8.8), good social support (adjusted odds ratio = 2.7, 95% confidence interval: 1.6 and 4.7), and being khat abstainer (adjusted odds ratio = 1.9, 95% confidence interval: 1.1 and 3.5) were significantly associated with good self-care practice.

Conclusion:

The prevalence of good self-care practice was low. In this study, good self-care practice was significantly associated with age, formal education, comorbidities, knowledge about hypertension, social support, and current khat chewing condition. Regular check-up and follow-up of patients’ compliance with self-management protocol, and more emphasis should be given to identify factors that potentially impeding patients’ adherence to hypertension self-management protocol.

Socio-demographic and modifiable risk factors of diabetes and hypertension among resource constrained patients from rural areas in Mdantsane Township in South Africa

Background

Recently, developing countries have shown a dramatic increase in non-communicable diseases (NCDs). The burden of NCDs in South Africa has increased over the past years resulting in an estimated 37% of all- cause mortality and 16% of disability-adjusted life years. Currently, diabetes mellitus (DM) and hypertension (HTN) are the two most prevalent NCDs associated with the rapid increase in mortality.

Objective

To demonstrate the socio-demographic and modifiable risk factors of diabetes mellitus (DM) and hypertension (HTN) among South African adults.

Methods

A cross-sectional analytical study was conducted in the Cecilia Makiwane Hospital serving the residents of Mdantsane. Relevant socio-demographic data, anthropometric measurements, triplicate blood pressure, fasting blood glucose and lipogram analysis were obtained from 265 outpatients.

Results

Multivariate anlysis shows that; salt intake, smoking, elevated triglycerides and decreased high-density lipoprotein levels were significantly associated with DM with adjusted odds ratio of 0.18 (p=0.002), 0.26 (p=0.048), 2.19 (p=0.006) and 0.38 (p=0.001), respectively. Overweight and obesity were significantly associated with hypertension with odds ratio of 0.03 (p=0.01) and 0.06 (p=0.006), respectively.

Conclusion

The burden of DM and HTN on society can be drastically reduced with simple lifestyle changes, development of preventative strategies, large-scale screening and better disease management in South Africa.

Knowledge, attitude and practice of lifestyle modification recommended for hypertension management and the associated factors among adult hypertensive patients in Harar, Eastern Ethiopia

Introduction:

Hypertension is an overwhelming global challenge. Appropriate lifestyle modifications are the cornerstone for the prevention and control of hypertension. In this regard, lack of knowledge and poor attitude toward lifestyle modification have been a major setback.

Objective:

To assess knowledge, attitude and practice of lifestyle modification recommended for hypertension management and the associated factors among adult hypertensive patients in Harar, Eastern Ethiopia.

Methods:

Hospital-based cross-sectional study was conducted among 274 hypertensive patients in Hiwot Fana Specialized University Hospital, from 1 March to 30 May 2019. The pre-tested structured questionnaire was used, and the data were collected through an interview. The data were analyzed using SPSS version 20. A multivariate logistic regression model was fitted to determine independent predictors of knowledge and practice of lifestyle modifications among hypertensive patients. Adjusted odds ratio (AOR) at 95% confidence interval (CI) was used for predicting the independent effect of each variable on the outcome variables.

Results:

From the total participants, 200 (73.0%) of participants had good knowledge, 182 (66.4%) had favorable attitude and 136 (49.6%) had good practice on lifestyle modification recommended for hypertension management. Regarding factors associated with lifestyle modification, being in age range of 46–64 years (AOR: 4.08, 95% CI: 1.14–14.56); having formal education (AOR: 3.93, 95% CI: 1.27–12.23); being government employee (AOR: 8.06, 95% CI: 1.40–46.32) and being housewives (AOR: 5.10, 95% CI: 1.26–20.79) were factors significantly associated with good knowledge of lifestyle modification, However, favorable attitude was found to be the only factor associated with good practice of lifestyle modification (AOR: 9.20, 95% CI: 2.60–32.24).

Conclusion:

In the current study, knowledge and attitude toward lifestyle modification recommended for hypertension management was fairly good but practice level was poor. Concerted strategies are required to increase the knowledge, attitude and practice of the lifestyle modification measures in this population group.

Prevalence of Hypertension and Associated Factors among the Outpatient Department in Akaki Kality Subcity Health Centers, Addis Ababa, Ethiopia

Background

Fatalities from hypertension in East Africa are increasing, even though they decreased in western industrial regions. Older age, being female, illiterate, smoking, physical inactivity, and high waist circumferences are major risk factors for the development of hypertension. The prevalence of hypertension among Federal Ministry Civil servants in Addis Ababa, Ethiopia, has found to be high; which is an indication for institution-based hypertension-screening programs.

Objective

Prevalence of hypertension and associated factors among the outpatient department in Akaki Kality Subcity Health Centers, Addis Ababa, Ethiopia. Methodology. Facility-based cross-sectional study was carried out on systematically sampled 401 out-department patients whose age was greater than or equal to 18 years in four government health centers in Addis Ababa. Data collection took place from March 10, 2018, to April 06 2018. Binary logistic regression analysis was carried out to identify predictors of hypertension.

Results

Patients had a mean age of 41.17 years (95% CI: 39.77–42.57). The prevalence of hypertension was 14% (95% CI: 13.653–14.347), and 30 (53.57%) were males. Alcohol drinkers were 11.844 times more likely to be hypertensive as compared to non-alcohol drinkers (AOR = 11.844, 95% CI: 3.596–39.014). Cigarette smokers were 16.511 times more likely to be hypertensive as compared to non-cigarette smokers (AOR = 16.511, 95% CI: 4.775–57.084). Khat chewers were 6.964 times more likely to be hypertensive as compared to non-khat chewers (AOR = 6.964, 95% CI: 1.773–26.889).

Conclusion

The prevalence of patients with hypertension was 14%. Alcohol drinking, cigarette smoking, khat chewing, body mass index ≥25 kg/m², and age ≥44 years old are major determinants identified by this study. Hence, appropriate management of patients focusing on the relevant associated factors would be of great benefit in controlling hypertension.

Prevalence and factors associated with uncontrolled hypertension among adult hypertensive patients on follow-up at Northern Ethiopia, 2019: cross-sectional study

Introduction

uncontrolled hypertension is a major risk factor for cardiovascular, renal, and cerebrovascular morbidities and mortalities. This study aims to assess the prevalence and factors associated with uncontrolled hypertension among adult hypertensive patients.

Methods:

hospital-based cross-sectional study was conducted. Systematic random sampling technique was used to select 396 hypertensive patients. Respondents were interviewed and their medical charts were reviewed using pretested structured questionnaire. Bivariable logistic regression was employed to examine the crude associations between the outcome variable and determinant variables. This was followed by multivariable logistic regression analysis using those variables with P-value ≤ 0.25 in the bivariable analysis.

Results

of the total 396 hypertensive patients the prevalence of uncontrolled hypertension was found to be 48.6%. One fourth (26.1%), 231(59.1%), 289(73.9%), and 151(38.6%) hypertensive respondents were non adherent to anti-hypertensive medication, physical exercise, low salt diet, and weight management respectively. Age ≥50 years old (AOR = 2.33, 95%CI: 1.25, 4.35), non-adherence to anti-hypertensive medication, (AOR = 1.82 95%CI: 1.08, 3.04), non-adherence to physical exercise (AOR = 1.79 95%CI: 1.13, 2.83), non-adherence to low-salt diet (AOR = 1.98 95%CI: 1.18,3.31), and non-adherence to weight management (AOR = 2.06, 95%CI: 1.31, 3.23) were significantly associated with uncontrolled hypertension.

Conclusion

the prevalence of uncontrolled hypertension was high. Older hypertensive patients, non-adherent to their medications, physical inactivity, non-adherent to low salt diet and non-adherent to weight management were more likely to have uncontrolled hypertension. Therefore, more effort should be dedicated to those identified modifiable risk factors to maximize blood pressure control.

Prevalence, Awareness, Treatment and Control of Hypertension in Nigeria: Data from a Nationwide Survey 2017

Background

Previous studies that evaluated the prevalence, awareness and treatment of hypertension in Nigeria were either localized to some specific regions of the country or non-standardized thereby making evaluation of trend in hypertension care difficult.

Methods

We used the World Health Organization (WHO) STEPwise approach to chronic disease risk factor surveillance to evaluate in a nationally representative sample of 4192 adult Nigerians selected from a rural and an urban community in one state in each of the six geo-political zones of the country.

Results

The overall age-standardized prevalence of hypertension was 38.1% and this varied across the geo-political zones as follows: North-Central, 20.9%; North-East, 27.5%; North-West, 26.8%; South-East, 52.8%; South-South, 44.6%; and South-West, 42.1%. Prevalence rate did not differ significantly (p > 0.05) according to place of residence; 39.2% versus 37.5 %; urban vs rural. Prevalence of hypertension increased from 6.8% among subjects less than 30 years to 63.0% among those aged 70 years and above. Awareness was better (62.2% vs. 56.6%; P = 0.0272); treatment rate significantly higher (40.9 % vs. 30.8%; P < 0.0001) and control similar (14 vs. 10.8%) among urban compared to rural residents. Women were more aware of (63.3% vs. 52.8%; P < 0.0001); had similar (P > 0.05) treatment (36.7 vs. 34.3%) and control (33.9% vs. 35.5%) rates of hypertension compared to men.

Conclusion

Our results suggest a large burden of hypertension in Nigeria and a closing up of the rural-urban gap previously reported. This calls for a change in public health policies anchored on a primary health care system to address the emerging disease burden occasioned by hypertension.

Prevalence of Cardiovascular Disease Risk Factors in the Gambia: A Systematic Review

Cardiovascular disease (CVD) is increasingly becoming a major chronic disease burden in sub-Saharan Africa. The aim of this review was to provide an up-to-date overview on prevalence of CVD risk factors in the Gambia. The findings from seven included studies revealed that most CVD risk factors are very prevalent in the Gambia, with some specific groups in the population such as urban dwellers being more at risk. Obesity prevalence ranged from 2.3% to 11.7%, with rate being particularly high in urban women aged ≥35 years. Diabetes prevalence was 0.3%. Hypertension prevalence ranged from 18.3% to 29%. Prevalence of hypercholesterolemia ranged from 2.2% to 29.1%. Prevalence of smoking ranged from 16% to 42.2% in men. Prevalence of insufficient fruit and vegetable consumption, inadequate physical activity, and alcohol consumption was 77.8%, 14.6%, and 2.3%, respectively. These findings suggest urgent need for preventive measures and further research to prevent CVD in the Gambia.

Prevalence and risk factors of hypertension among civil servants in Sidama Zone, south Ethiopia

INTRODUCTION

Hypertension is the leading cause of death and disability in adult populations globally. Its prevalence is increasing rapidly in Ethiopia. Studies conducted to date address different population categories. However, there is lack of data on the prevalence and risk factors of hypertension among civil servants working in various sectors and levels.

OBJECTIVE

To assess the prevalence and risk factors of hypertension among civil servants in Sidama Zone, south Ethiopia.

METHODS AND MATERIALS

An institution-based cross-sectional study was conducted from March 1-30, 2019 on a sample of 546 civil servants selected randomly from different departments of Sidama Zone Administration. Data were collected using structured, face-to-face interviewer-administered questionnaire and standard physical measurements. The data were entered using Epi Data 3.1 and analyzed using SPSS version 20. Multivariable logistic regression analysis was used to identify factors associated with hypertension. Adjusted odds ratios (AORs) with 95% confidence interval (CI) were computed to assess the presence and strength of associations.

RESULTS

A total of 546 civil servants responded resulting in a response rate of 94.9%. The prevalence of hypertension was 24.5% [95% CI: 23.3% - 25.6%]. The identified risk factors of hypertension were male sex (AOR 4.31[95% CI: 1.84-10.09]), moderate current alcohol consumption (AOR: 4.85; [95% CI: 1.73-13.61]), current khat chewing (AOR 2.97[95% CI: 1.38-6.40]), old age (AOR: 4.41[95% CI: 1.19-16.26]), being obese (AOR 5.94 [95% CI: 1.26-27.86]) and central obesity (AOR 3.57 [95% CI: 1.80-7.07]).

CONCLUSIONS

One in four civil servants are hypertensive. Different demographic, behavioral and metabolic factors increase the odds of hypertension among civil servants. Prevention and control of hypertension shall involve promotion of healthy lifestyles such as weight management, regular physical activity and quitting or cutting down on harmful use of substances such as alcohol and khat.

Clinical care & blood pressure control among hypertensive people living with human immune deficiency virus: Prospective cohort study

BACKGROUND

Hypertension has emerged as a new threat to the health and well-being of people living with human immune deficiency virus (PLHIV). However, no data exist on care delivery and blood pressure control over time in Ethiopia. We assessed clinical care & level of blood pressure control among hypertensive people living with Human Immune Deficiency Virus (HIV).

METHODS

We conducted a prospective cohort study among adult hypertensive PLHIV and HIV-negative patientsat chronic care clinics of Jimma University Medical Center in Ethiopia. We explored self-management practices and blood pressure control of study participants. Multivariable Cox-regression was used to identify the predictors of the outcome.

RESULTS

A total of 303 eligible participants with mean age of 43.30 ± 12.55years were followed and males comprised of 52.1%. After 12 months of follow-up, 60.2% of HIV-positive and 53% of HIV-negative patients showed uncontrolled blood pressure. The overall perception of self-management behaviors was 2.10 ± 0.77 (p = 0.122), which was at moderate level. An increased waist circumference [AHR: 2.16; 95% CI: (1.58-5.18);p = 0.021],chronic disease co-morbidity[AHR:3.94;95%CI:(2.24-8.74);p = 0.046],alcohol use history[AHR:1.26; 95%CI:(1.08-2.23);p = 0.031], HIV infection[AHR:3.06;95%CI:(1.93-11.34);p=0.042], infrequent use of fruits & vegetables [AHR:3.77;95%CI: (1.34-10.57);p=0.012], infrequent engagement on physical exercise[AHR:3.48;95%CI:(1.48-8.17);p = 0.004],frequent use of high fats food [AHR:2.56;95%CI: (1.25-5.25);p = 0.011] were an independent predictors of uncontrolled blood pressure.

CONCLUSION

The rate of uncontrolled blood pressure is significantly higher in the HIV- infected population. There was a gap in the clinical care of hypertension in terms of hypertension self-management among hypertensive HIV-positive patients. Our study highlights the need for better integration of hypertension care to HIV clinical setting.

Regional Patterns and Association Between Obesity and Hypertension in Africa: Evidence From the H3Africa CHAIR Study

Hypertension and obesity are the most important modifiable risk factors for cardiovascular diseases, but their association is not well characterized in Africa. We investigated regional patterns and association of obesity with hypertension among 30 044 continental Africans. We harmonized data on hypertension (defined as previous diagnosis/use of antihypertensive drugs or blood pressure [BP]≥140/90 mmHg/BP≥130/80 mmHg) and obesity from 30 044 individuals in the Cardiovascular H3Africa Innovation Resource across 13 African countries. We analyzed data from population-based controls and the Entire Harmonized Dataset. Age-adjusted and crude proportions of hypertension were compared regionally, across sex, and between hypertension definitions. Logit generalized estimating equation was used to determine the independent association of obesity with hypertension (P value <5%). Participants were 56% women; with mean age 48.5±12.0 years. Crude proportions of hypertension (at BP≥140/90 mmHg) were 47.9% (95% CI, 47.4-48.5) for Entire Harmonized Dataset and 42.0% (41.1-42.7) for population-based controls and were significantly higher for the 130/80 mm Hg threshold at 59.3% (58.7-59.9) in population-based controls. The age-adjusted proportion of hypertension at BP≥140/90 mmHg was the highest among men (33.8% [32.1-35.6]), in western Africa (34.7% [33.3-36.2]), and in obese individuals (43.6%; 40.3-47.2). Obesity was independently associated with hypertension in population-based controls (adjusted odds ratio, 2.5 [2.3-2.7]) and odds of hypertension in obesity increased with increasing age from 2.0 (1.7-2.3) in younger age to 8.8 (7.4-10.3) in older age. Hypertension is common across multiple countries in Africa with 11.9% to 51.7% having BP≥140/90 mmHg and 39.5% to 69.4% with BP≥130/80 mmHg. Obese Africans were more than twice as likely to be hypertensive and the odds increased with increasing age.

Knowledge and Attitude of Self-Monitoring of Blood Pressure Among Adult Hypertensive Patients on Follow-Up at Selected Public Hospitals in Arsi Zone, Oromia Regional State, Ethiopia: A Cross-Sectional Study

BACKGROUND

Self-monitoring of blood pressure (BP) among hypertensive patients is an important aspect of the management and prevention of complication related to hypertension. However, self-monitoring of BP among hypertensive patients on scheduled follow-up in hospitals in Ethiopia is unknown. The aim of the study was to assess knowledge and attitude of self-monitoring of BP among adult hypertensive patients.

METHODS

A cross-sectional survey was conducted on 400 adult hypertensive patients attending follow-up clinics at four public hospitals of Arsi Zone, Oromia Regional State, Ethiopia. The data were collected from patients from March 10, 2019 to April 8, 2019 by face-to-face interview using a pretested questionnaire and augmented by a retrospective patients' medical records review. The data were analyzed using the SPSS version 21.0 software.

RESULTS

A total of 400 patients were enrolled into the study with the response rate of 97.6%. The median age of the participants was 49 years (range 23-90 years). More than half (225 [56.3%]) were male. The majority (160 [40%]) were married and more than two-thirds (282 [70.5%]) were Oromo by ethnic background. About 206 (51.5%) had attended primary education. The proportion of patient's knowledge toward self-monitoring of BP and the practice of self-monitoring of BP among hypertensive patients was 31.5% (n=126 [95% CI; 26.5, 36.5]) and 7.75% (n=31 [95% CI; 5.3, 10.5]) respectively. The multivariable logistic regression analysis revealed; higher education (AOR=2.73, 95% CI [1.33, 13.88)], governmental employed (AOR=1.52, 95% CI [1.06, 6.48]), having an income of >3500 Ethiopian Birr (AOR=2.16, 95% CI [1.56, 7.39]), duration of hypertension >6 years (AOR=1.87, 95% CI [1.21, 6.37]), having health insurance (AOR=3.56, 95% CI [1.39, 10.53]), having co-morbidities (AOR=3.93, 95% CI [1.35, 10.32]), receiving a health professional recommendation toward self-monitoring of BP (AOR=6.08, 95% CI [2.45, 15.06]), and having an awareness of hypertension-related complication (AOR=3.94, 95% CI [1.34, 11.44]) were factors significantly associated with self-monitoring of BP.

CONCLUSION

In this study, the proportion of knowledge of self-monitoring of BP and the practice of self-monitoring of BP among hypertensive patients on follow-up were low. Educational programs on self-monitoring of BP including teaching through demonstration may be needed to be in place.

Relationship between plasma homocysteine and blood pressure in hypertensive Northern-Nigerians

AIM

The study sought to determine whether there is any relationship between plasma homocysteine and blood pressure levels in Nigerians with essential hypertension.

METHOD

It was a cross-sectional analytical study done on 120 randomly selected hypertensive patients and 120 normal healthy controls seen at the large Conference hall of the Ahmadu Bello University (ABU) Medical Centre, Zaria as well as the ABU Teaching Hospital, Zaria, Northern-Nigeria. Pearson's Correlation and Binary Logistic Regression analysis determined the relationship between homocysteine and hypertension.

RESULTS

Hyperhomocysteinaemia found in the hypertensive patients (22.8 ± 6.6 µmol/L) differed significantly (p<0.001) from controls (10.9 ± 2.8 µmol/L) with significant (p<0.001), blood pressure difference between both groups. Homocysteine significantly positively correlated with systolic (r = 0.51, p<0.001) and diastolic (r = 0.47, p<0.001) blood pressures in hypertensive subjects. The relation of plasma hcy to hypertension was statistically significant for SBP; OR: 1.08 (95% CI, 1.05-1.11) and DBP; OR: 1.08 (95% CI, 1.03-1.13) in the unadjusted model. When adjusted for confounding variables, hcy was significantly related to SBP; OR: 1.1 (95% CI, 1.04-1.18) but not DBP (p=0.25; OR: 1.06 (95 % CI, 0.96-1.18). The mean plasma folate level was high (115.2 ± 48.0 ng/mL) in the hypertensive subjects. The hyperhomocysteinaemic subjects showed a 2.8 times Odds of developing hypertension.

CONCLUSION

This study showed higher mean plasma homocysteine levels in hypertensives than controls not accounted for by sub-optimal folate levels. Hyperhomocysteinaemia showed a positive relationship to systolic hypertension after adjusting for confounders.

Strategies for Effective Stakeholder Engagement in Strengthening Referral Networks for Management of Hypertension Across Health Systems in Kenya

BACKGROUND

Ineffective referral networks in low- and middle-income countries hinders access to evidence-based therapies by hypertensive patients, leading to high cardiovascular mortality and morbidity. The STRENGTHS (Strengthening Referral Networks for Management of Hypertension Across Health Systems) study evaluates strategies to improve referral processes utilizing the International Association of Public Participation framework to engage stakeholders.

OBJECTIVES

This study sought to identify and engage key stakeholders involved in referral of patients in the Ministry of Health, western Kenya.

METHODS

Key stakeholders involved in policy formulation, provision, or consumption of public health care service were mapped out and contacted by phone, letters, and emissaries to schedule meetings, explain research objectives, and obtain feedback.

RESULTS

Key stakeholders identified were the Ministry of Health, the Academic Model Providing Access to Healthcare, health professionals, communities and their leadership, and patients. Engaging them resulted in permission to contact research in their areas of jurisdiction and enabled collaboration in updating care protocols with emphasis on timely and appropriate referrals.

CONCLUSIONS

Early stakeholder identification and engagement using the International Association of Public Participation model eased explanation of research objectives, building consensus, and shaping the interventions to improve the referral process.

Hypertension testing and treatment in Uganda and Kenya through the SEARCH study: An implementation fidelity and outcome evaluation

Background

Hypertension (HTN) is the single leading risk factor for human mortality worldwide, and more prevalent in sub-Saharan Africa than any other region [1]–although resources for HTN screening, treatment, and control are few. Most regional pilot studies to leverage HIV programs for HTN control have achieved blood pressure control in half of participants or fewer [2,3,4]. But this control gap may be due to inconsistent delivery of services, rather than ineffective underlying interventions.

Methods

We sought to evaluate the consistency of HTN program delivery within the SEARCH study (NCT01864603) among 95,000 adults in 32 rural communities in Uganda and Kenya from 2013–2016. To achieve this objective, we designed and performed a fidelity evaluation of the step-by-step process (cascade) of HTN care within SEARCH, calculating rates of HTN screening, linkage to care, and follow-up care. We evaluated SEARCH’s assessment of each participant’s HTN status against measured blood pressure and HTN history.

Findings

SEARCH completed blood pressure screens on 91% of participants. SEARCH HTN screening was 91% sensitive and over 99% specific for HTN relative to measured blood pressure and patient history. 92% of participants screened HTN+ received clinic appointments, and 42% of persons with HTN linked to subsequent care. At follow-up, 82% of SEARCH clinic participants received blood pressure checks; 75% received medication appropriate for their blood pressure; 66% remained in care; and 46% had normal blood pressure at their most recent visit.

Conclusion

The SEARCH study’s consistency in delivering screening and treatment services for HTN was generally high, but SEARCH could improve effectiveness in linking patients to care and achieving HTN control. Its model for implementing population-scale HTN testing and care through an existing HIV test-and-treat program–and protocol for evaluating the intervention’s stepwise fidelity and care outcomes–may be adapted, strengthened, and scaled up for use across multiple resource-limited settings.

Community awareness of diet needs associated with hypertension and type 2 diabetes mellitus in Hatcliffe, Zimbabwe

BACKGROUND

Diet is an important modifiable risk factor for non-communicable diseases (NCDs) like hypertension (HTN) and type 2 diabetes mellitus (T2DM). A NCD is a disease that cannot be transmitted from person to person. Dietary risk factors account for 5.8% of all-cause mortality in Sub-Saharan Africa (SSA). There has been an increase in the consumption of 'westernized 'diets in SSA. The westernized diets consumed in low-income countries are usually high in salt content, fatty, processed and fast foods; and hence accelerate the development of HTN and T2DM. Previous studies carried out in Zimbabwe showed low levels of knowledge and awareness of HTN and T2DM; and the dietary needs for patients with those conditions. The aim of this study was to explore the dietary habits and awareness of HTN and T2DM of both males and females in a high-density area (HDA) of Zimbabwe.

METHODS

We conducted household-based cross-sectional study in a high density area of Hatcliffe, which has a population of close to 50,000 residents. Face to face interviews were conducted using hand-held mobile devices loaded with KoBo Toolbox. We selected two consenting adults, a male and female, from every fourth household in selected areas of Hatcliffe.

RESULTS

In this study all the 492 participants that were interviewed responded. Eighty eight point 6% (88.6%) of the participants in the study did not know if they were hypertensive or not. In addition, 91.7% of the participants had never voluntarily checked for hypertension. Similarly, 97.6% of the participants did not know if they had T2DM or not. Ninety eight percent (98%) of the participants had not voluntarily checked their blood glucose level.

CONCLUSIONS

The majority of the participants in the study were not aware if they had HTN or T2DM. The participants in the study perceived that the salt they consume is the right quantity. There is a high consumption of vegetable oil in most meals prepared.

Physical, behavioral and sociodemographic determinants of hypertension among the adult population in Nekemte town, western Ethiopia: community based study

Objectives

Hypertension is a growing public health problem in many developing countries. However, there is an insufficiency of scientific evidence on the prevalence of hypertension (HTN) at a community level in the study area. The aim of the study was exploring the prevalence and associated factors of hypertension among adults in Nekemte town, Ethiopia. A community-based cross-sectional study was conducted on 711 adults who were selected by the multistage sampling procedure. Height, weight, blood pressure and waist circumference were measured with standard procedures. Data were analyzed by statistical package for social sciences (SPSS) version 20, and multiple logistic regression model was used to determine the independent risk factors for hypertension.

Result

The overall prevalence of hypertension was 34.9% among the adult population. Of them, only 52.7% know their status, and 22.4% were on antihypertensive medication. The prevalence of hypertension was higher among the older aged; AOR 5.85 (95% CI 1.74–20), Obese and over-weighted; (AOR 1.71 (95% CI 1.09–2.67)), Khat chewers in the past year; AOR 2.44 (95% CI 1.05–5.68), and with higher formal education (college and above); AOR 2.75 (95% CI 1.26–6.03) than their respective counterparts. Community-level prevention and treatment of hypertension should get due attention.

Relationship between obesity and blood pressure among employees in the Vhembe district municipality of Limpopo Province, South Africa

OBJECTIVE

The aim of this study was to investigate the relationship between obesity and blood pressure among employees of the Vhembe district municipality of Limpopo province.

METHODS

A cross-sectional study was conducted among 452 local government employees (207 males, 245 females) aged 24-65 years. Body mass index (BMI), blood pressure (BP) and waist circumference (WC) measurements, and waist-to-height ratio (WHtR) were assessed. Data were analysed using Statistical Package for Social Sciences (SPSS) statistics, version 21.

RESULTS

The results showed that 27% of the participants were classified as overweight and 34% as obese, with females being more overweight and obese (29 and 48%, respectively) compared to males (24 and 17%, respectively). Twenty-five per cent of the participants were hypertensive, with females (27%) showing a higher prevalence compared to males (22%). Based on BMI categories, the obese group (35%) had a higher prevalence of hypertension in contrast to groups that were of normal weight (18%) and overweight (22%). The results also showed that systolic blood pressure (SBP) was positively (p ≤ 0.05) correlated with BMI (r = 0.15), WC (r = 0.26) and WHtR (r = 0.29) in the normal and overweight groups (WC, r = 0.23 and WHtR, r = 0.26), and WHtR correlated with SBP (r = 0.26) and diastolic blood pressure (DBP) (r = 0.19).

CONCLUSIONS

The study showed a high prevalence of overweight, obesity and hypertension, with females more affected than their male counterparts. BMI, WC and WHtR were positively correlated with SBP in the normal and overweight groups, with WHtR positively correlated with both SBP and DBP in the overweight group. Therefore, it is recommended that intervention regimes designed to address obesity and hypertension should consider risk awareness for cardiovascular diseases, impaired quality of life and productivity among local government employees.

Blood pressure and burden of hypertension in Cameroon, a microcosm of Africa: a systematic review and meta-analysis of population-based studies

OBJECTIVE

To estimate national and geography-based variations in blood pressure and burden of hypertension in Cameroon, generally called 'miniature Africa'.

METHODS

PubMed, Medline, EMBASE, CINHAL, Web of Science, Popline, Scopus and BDSP were searched through November 2018, for hypertension studies among Cameroonians aged at least 18 years. Hypertension was measured as SBP at least 140 mmHg or DBP at least 90 mmHg. Random-effects meta-analysis was used.

RESULTS

Twenty studies involving 46 491 participants met inclusion criteria. Overall hypertension prevalence was 30.9% [95% confidence interval (CI) 27.0-34.8]: 29.6% (24.1-35.1) and 32.1% (27.2-37.1) in 1994-2010 and 2011-2018, respectively. Of hypertensive participants, only 24.4% (18.9-30.0) - 31.6% (21.0-42.3) and 20.8% (14.0-27.7) in 1994-2010 and 2011-2018, respectively - were aware of their status, 15.1% (10.6-19.6) were taking antihypertensive medications and 8.8% (5.7-11.9) - 10.4% (7.5-13.3) and 8.3% (4.4-12.3) in 1994-2010 and 2011-2018, respectively - were controlled. Hypertension prevalence varied by sex: 34.3% (30.0-38.6) for men and 31.3% (26.5-36.1) for women; ethnicity: from 3.3% (0.4-6.2) among Pygmies to 56.6% (49.4-63.8) among Bamileke; urbanity: 25.4% (17.1-33.7) for rural and 31.4% (27.3-35.5) for urban dwellers; agroecological zone: from 35.1% (28.9-41.3) in Tropical highlands to 28% (20.1-35.9) in Guinea-Savannah; and subnational region: from 36.3% (27.8-44.9) in the West to 17.1% (9.9-44.2) in the South.

CONCLUSION

Cameroon's hypertension prevalence is high and increasing whereas awareness, treatment and control are low and declining. Emerging patterns call urgently for effective campaigns to raise hypertension awareness alongside strategies for hypertension prevention and BP control.

Target women: Equity in access to mHealth technology in a non-communicable disease care intervention in Kenya

BACKGROUND

Non-Communicable Diseases (NCDs) constitute 40 million deaths annually. Eighty-percent of these deaths occur in Low- and Middle-Income Countries. MHealth provides a potentially highly effective modality for global public health, however access is poorly understood. The objective of our study was to assess equity in access to mHealth in an NCD intervention in Kenya.

METHODS

This is a secondary analysis of a complex NCD intervention targeting slum residents in Kenya. The primary outcomes were: willingness to receive SMS, whether SMS was received, and access to SMS compared to alternative health information modalities. Age, sex, level of education, level of income, type of work, number of hours worked, and home environment were explanatory variables considered. Multivariable regression analyses were used to test for association using likelihood ratio testing.

RESULTS

7,618 individual participants were included in the analysis. The median age was 44 years old. Majority (75%, n = 3,691/ 4,927) had only attended up to primary (elementary) school. Majority reported earning "KShs 7,500 or greater" (27%, n = 1,276/ 4,736). Age and level of income had evidence of association with willingness to receive SMS, and age, sex and number of hours work with whether SMS was received. SMS was the health information modality with highest odds of being accessed in older age groups (OR 4.70, 8.72 and 28.89, for age brackets 60-69, 70-79 and 80 years or older, respectively), among women (OR = 1.86, 95% CI 1.19-2.89), and second only to Baraazas (community gatherings) among those with lowest income.

CONCLUSION

Women had the greatest likelihood of receiving SMS. SMS performed equitably well amongst marginalized populations (elderly, women, and low-income) as compared to alternative health information modalities, though sensitization prior to implementation of mHealth interventions may be needed. These findings provide guidance for developing mHealth interventions targeting marginalized populations in these settings.

The impact of interventions for the primary prevention of hypertension in Sub-Saharan Africa: A systematic review and meta-analysis

BACKGROUND

The prevalence of hypertension is highest in the African Region with 46% of adults aged 25 and above diagnosed with hypertension, while the lowest prevalence of 35% is found in the Americas. There is sparse evidence on the approaches used to prevent hypertension in Sub-Saharan Africa and the effectiveness of these approaches. It is therefore imperative that a systematic review; which synthesises all the available evidence on the approaches and their impact is conducted to inform public health policy and practice.

OBJECTIVE

To synthesise evidence on the interventions used for the primary prevention of hypertension in Sub-Saharan Africa and to evaluate the effectiveness of these interventions in reducing blood pressure, hypertension prevalence and the risk factors for hypertension.

METHODS AND RESULTS

This systematic review was reported per the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) guidelines. Bibliographic databases were searched on the 4th-17th of January 2018 from 1970 to January 2018 and on the 5th of May 2019 from 1970 to May 2019, for studies focusing on the primary prevention of hypertension in communities in Sub-Saharan Africa. A narrative synthesis was conducted based on study interventions and outcomes. Also, a meta-analysis was carried out using pooled mean differences; using a random effects model of generic inverse variance option in RevMan. A total of 854 studies were identified after deduplication, with thirteen studies meeting the inclusion criteria. Six studies with varying interventions and methodologies observed a significant pooled reduction in systolic blood pressure of -3.3mmHg (95%CI -4.64 to -1.96) and a reduction of -2.26mmHg (95%CI -6.36 to 1.85) in diastolic blood pressure, which was not statistically significant (p = 0.28). Also, moderate to significant heterogeneity was observed (I2 = 68% and 99%) for the systolic and diastolic blood pressure respectively. Intervention and study design accounted for 100% heterogeneity for both systolic and diastolic blood pressure (r2 = 100%).

CONCLUSION

Health promotion and interventions targeting various risk factors of hypertension and, salt consumption restriction interventions have been employed in Sub-Saharan Africa with varying levels of success. We recommend that higher quality studies and a meta-analysis are needed to evaluate the impact of these interventions and to inform public health policy and practice.

Risk factors for hypertension among young adults (18-35) years attending in Tenwek Mission Hospital, Bomet County, Kenya in 2018

Introduction

Hypertension ranks third in the world, after underweight and unsafe sex, in the list of six major risk factors contributing to the global disease. In Kenya, the prevalence stands at 24% in the general population, while among the young adults, the incidence of hypertension has been reported to be in the rise; a fact attributed to increased number of risks. We therefore sought to determine awareness and risk factors of hypertension among young adults attending Tenwek hospital.

Methods

A case-control study of young adults ages 18-35, involving 80 cases and 80 controls at Tenwek Mission Hospital, Bomet County. Cases included males and females newly diagnosed with hypertension (diagnosed at the time of data collection) and if they reported taking antihypertensive medication and reported as hypertensives in the hospital records at any clinic visit or at interview, while controls included persons with no history of hypertension.

Results

Those having a BMI≥25 were 3.05 times more likely to be hypertensive (OR: 3.05, 95% CI 1.26, 7.40; p=0.014). Having a relative suffering from hypertension increased almost thrice the odds of being hypertensive (OR: 2.78, 95% CI 1.20, 6. 46; p=0.018). Not drinking alcohol reduced the chance of suffering from hypertension by 70%, (OR=0.30, 95% CI 0.11, 0.81; p=0.017).

Conclusion

The prevalence of hypertension in younger adults is not as low as generally perceived. Preventive measures should be formulated in a manner to address variety of major risk factors in young adults.

Practice and predictors of self-care behaviors among ambulatory patients with hypertension in Ethiopia

BACKGROUND

Despite the benefits of evidence-based self-care behaviors in the management of hypertension, hypertensive patients have low rate of adherence to the recommended self-care behaviors. Studies related to self-care behaviors among hypertensive patients are limited in Ethiopia.

OBJECTIVE

To assess the rate of adherence to self-care behaviors and associated factors among hypertensive patients.

METHOD

A cross-sectional study was conducted at the cardiac clinic of Ayder comprehensive specialized hospital among ambulatory hypertensive patients. Self-care behaviors were assessed using an adopted Hypertension Self-Care Activity Level Effects (H-SCALE). Data were collected through patient interview and review of medical records. Binary logistic regression analysis was performed to identify predictors of self-care behaviors.

RESULT

A total of 276 patients were included in the study. The majority of the participants were nonsmokers (89.9%) and alcohol abstainers (68.8%). Less than half of the participants were adherent to the prescribed antihypertensive medications (48.2%) and recommended physical activity level (44.9%). Moreover, only 21.45% and 29% were adherent to weight management and low salt diet recommendations, respectively. Our finding indicated that rural resident (adjusted odds ratio [AOR]: 0.45, 95% confidence interval [CI]: 0.21-0.97), comorbidity (AOR: 0.16, 95% CI: 0.08-0.31), and negative medication belief (AOR: 0.25, 95% CI: 0.14-0.46) were significantly associated with medication adherence. Female sex (AOR: 0.46, 95% CI: 0.23-0.92), old age (AOR: 0.19, 95% CI: 0.06-0.60) and lack of knowledge on self-care behaviors (AOR: 0.13, 95% CI: 0.03-0.57) were significantly associated with adherence to weight management. Female sex (AOR: 1.97, 95% CI: 1.03-3.75) and lack of knowledge on self-care (AOR: 0.07, 95% CI: 0.03-0.16) were significantly associated with adherence to alcohol abstinence. Female sex (AOR: 6.33, 95% CI: 1.80-22.31) and khat chewing (AOR: 0.08, 95% CI: 0.03-0.24) were significantly associated with non-smoking behavior. There was also a significant association between female sex and physical activity (AOR: 0.22, 95% CI: 0.12-0.40).

CONCLUSION

The rate of adherence to self-care behaviors particularly weight management, low salt intake, physical exercise, and medication intake was low in our study. Elders, females, khat chewers, rural residents, and patients with negative medication belief, comorbidity, and inadequate knowledge of SCBs were less adherent to self-care behaviors compared to their counterparts. Therefore, health care providers should pay more emphasis to patients at risk of having low self-care behaviors.