The economic burden of cardiovascular disease and hypertension in low- and middle-income countries: a systematic review

Cardiovascular Disease in the Indo-Caribbean Population: A Scoping Review

At the beginning of the 20th century, there was a shift in disease patterns from that of communicable disease to noncommunicable disease (NCD). As a result, cardiovascular disease (CVD) has emerged as a leading cause of morbidity and mortality worldwide. Its incidence and effect on various populations at a molecular level as well as clinical implications have been heavily studied; however, its role in morbidity and mortality in the Indo-Caribbean population is often overlooked. The Caribbean diaspora is a vibrant and heterogeneous culture, encompassing individuals with ancestries from across the world including the Indian subcontinent and Africa. Abundant research is consistently conducted on these populations, but limited research exists on how the interplay between genetics and environment translates to the manifestation of various diseases in the Indo-Caribbean population. This scoping review aims to identify and assess the current literature within the past 10 years conducted on CVD in Indo-Caribbeans in order to gain a thorough understanding of disease and management to improve health outcomes. Additionally, this review aimed to identify gaps in research that require further study to gain a better understanding of relevant variables affecting disease outcomes in the Indo-Caribbean population. Multiple health databases were queried, and the initial search yielded over 3,000 results. However, after screening with the inclusion and exclusion criteria established, the final search included less than 1% of the papers initially searched. This search yielded data that included treatment and management of myocardial infarction, hypertension, and atherosclerosis, but notably did not yield papers that discussed the relationship between social determinants of health and CVD in Indo-Caribbeans. Florida and New York are prominent states that have robust Indo-Caribbean populations; the lack of research renders these states vulnerable to improving health outcomes in these patients. The authors call for increased focus on this population in research studies and efforts to improve the quality of the data collected through stratification by ethnicity. Robust data may allow for improvement in the treatment and management of CVD in Indo-Caribbeans, which offers a more proactive rather than reactive approach to decreasing morbidity and mortality.

Adipose tissue macrophages as a therapeutic target in obesity-associated diseases

Obesity is an increasing problem in developed and developing countries. Individuals with obesity have a higher risk of several diseases, such as cardiovascular disease, increased risk of insulin resistance, type 2 diabetes, infertility, degenerative disorders, and also certain types of cancer. Adipose tissue (AT) is considered an extremely active endocrine organ, and the expansion of AT is accompanied by the infiltration of different types of immune cells, which induces a state of low-grade, chronic inflammation and metabolic dysregulation. Even though the exact mechanism of this low-grade inflammation is not fully understood, there is clear evidence that AT-infiltrating macrophages (ATMs) play a significant role in the pro-inflammatory state and dysregulated metabolism. ATMs represent the most abundant class of leukocytes in AT, constituting 5% of the cells in AT in individuals with normal weight. However, this percentage dramatically increases up to 50% in individuals with obesity, suggesting an important role of ATMs in obesity and its associated complications. In this review, we discuss current knowledge of the function of ATMs during steady-state and obesity and analyze its contribution to different obesity-associated diseases, highlighting the potential therapeutic target of ATMs in these pathological conditions.

Noninvasive rapid cardiac magnetic resonance for the assessment of cardiomyopathies in low-middle income countries

Introduction: Cardiac Magnetic Resonance (CMR) is a crucial diagnostic imaging test that redefines diagnosis and enables targeted therapies, but the access to CMR is limited in low-middle Income Countries (LMICs) even though cardiovascular disease is an emergent primary cause of mortality in LMICs. New abbreviated CMR protocols can be less expensive, faster, whilst maintaining accuracy, potentially leading to a higher utilization in LMICs.Areas covered: This article will review cardiovascular disease in LMICs and the current role of CMR in cardiac diagnosis and enable targeted therapy, discussing the main obstacles to prevent the adoption of CMR in LMICs. We will then review the potential utility of abbreviated, cost-effective CMR protocols to improve cardiac diagnosis and care, the clinical indications of the exam, current evidence and future directions.Expert opinion: Rapid CMR protocols, provided that they are utilized in potentially high yield cases, could reduce cost and increase effectiveness. The adoption of these protocols, their integration into care pathways, and prioritizing key treatable diagnoses can potentially improve patient care. Several LMIC countries are now pioneering these approaches and the application of rapid CMR protocols appears to have a bright future if delivered effectively.

Societal Cost of Ischemic Stroke in Romania: Results from a Retrospective County-Level Study

BACKGROUND

Health policies in transitioning health systems are rarely informed by the economic burden of disease due to scanty access to data. This study aimed to estimate direct and indirect costs for first-ever acute ischemic stroke (AIS) during the first year for patients residing in Cluj, Romania, and hospitalized in 2019 at the County Emergency Hospital (CEH).

METHODS

The study was conducted using a mixed, retrospective costing methodology from a societal perspective to measure the cost of first-ever AIS in the first year after onset. Patient pathways for AIS were reconstructed to aid in mapping inpatient and outpatient cost items. We used anonymized administrative and clinical data at the hospital level and publicly available databases.

RESULTS

The average cost per patient in the first year after stroke onset was RON 25,297.83 (EUR 5226.82), out of which 80.87% were direct costs. The total cost in Cluj, Romania in 2019 was RON 17,455,502.7 (EUR 3,606,505.8).

CONCLUSIONS

Our costing exercise uncovered shortcomings of stroke management in Romania, particularly related to acute care and neurorehabilitation service provision. Romania spends significantly less on healthcare than other countries (5.5% of GDP vs. 9.8% European Union average), exposing stroke survivors to a disproportionately high risk for preventable and treatable post-stroke disability.

Cost-Effectiveness of Improved Hypertension Management in India through Increased Treatment Coverage and Adherence: A Mathematical Modeling Study

Background:

Despite the availability of effective and affordable treatments, only 14% of hypertensive Indians have controlled blood pressure. Increased hypertension treatment coverage (the proportion of individuals initiated on treatment) and adherence (proportion of patients taking medicines as recommended) promise population health gains. However, governments and other payers will not invest in a large-scale hypertension control program unless it is both affordable and effective.

Objective:

To investigate if a national hypertension control intervention implemented across the private and public sector facilities in India could save overall costs of CVD prevention and treatment.

Methods:

We developed a discrete-time microsimulation model to assess the cost-effectiveness of population-level hypertension control intervention in India for combinations of treatment coverage and adherence targets. Input clinical parameters specific to India were obtained from large-scale surveys such as the Global Burden of Disease as well as local clinical trials. Input hypertensive medication cost parameters were based on government contracts. The model projected antihypertensive treatment costs, avoided CVD care costs, changes in disability-adjusted life year (DALYs) and incremental cost per DALY averted (represented as incremental cost-effectiveness ratio or ICER) over 20 years.

Results:

Over 20 years, at 70% coverage and adherence, the hypertension control intervention would avert 1.68% DALYs and be cost-saving overall. Increasing adherence (while keeping coverage constant) resulted in greater improvement in cost savings compared to increasing coverage (while keeping adherence constant). Results were most sensitive to the cost of antihypertensive medication, but the intervention remained highly cost-effective under all one-way sensitivity analyses.

Conclusion:

A national hypertension control intervention in India would most likely be budget neutral or cost-saving if the intervention can achieve and maintain high levels of both treatment coverage and adherence.

Animal Fat Intake Is Associated with Albuminuria in Patients with Non-Alcoholic Fatty Liver Disease and Metabolic Syndrome

Non-alcoholic fatty liver disease (NAFLD) and metabolic syndrome (MetS) are associated with chronic kidney disease (CKD). Diet could play a predisposing role in the development of increased albuminuria in patients with NAFLD and MetS; however, published evidence is still limited. The aim of this cross-sectional analysis was to assess whether dietary fats are associated with changes in urinary albumin-to-creatinine ratio (UACR) in 146 patients aged 40–60-years with NAFLD and MetS. Dietary data were collected by food frequency questionnaire; UACR was measured in a single first morning void. Sources and types of dietary fats used in the analysis were total fat, fats from animal and vegetable sources, saturated, monounsaturated, polyunsaturated, and trans fats. One-way analysis of variance was performed to assess differences in dietary fats intakes across stages of UACR. The association between dietary fats and UACR was assessed by Pearson’s correlation coefficient and multivariable linear regression. Patients with increased UACR showed a worse cardiometabolic profile and higher intakes of animal fat, as compared to patients with normal levels of albuminuria. Animal fat intake was associated with mean UACR, independent of potential covariates.

Group Medical Visit and Microfinance Intervention for Patients With Diabetes or Hypertension in Kenya

BACKGROUND

Incorporating social determinants of health into care delivery for chronic diseases is a priority.

OBJECTIVES

The goal of this study was to evaluate the impact of group medical visits and/or microfinance on blood pressure reduction.

METHODS

The authors conducted a cluster randomized trial with 4 arms and 24 clusters: 1) usual care (UC); 2) usual care plus microfinance (MF); 3) group medical visits (GMVs); and 4) GMV integrated into MF (GMV-MF). The primary outcome was 1-year change in systolic blood pressure (SBP). Mixed-effects intention-to-treat models were used to evaluate the outcomes.

RESULTS

A total of 2,890 individuals (69.9% women) were enrolled (708 UC, 709 MF, 740 GMV, and 733 GMV-MF). Average baseline SBP was 157.5 mm Hg. Mean SBP declined -11.4, -14.8, -14.7, and -16.4 mm Hg in UC, MF, GMV, and GMV-MF, respectively. Adjusted estimates and multiplicity-adjusted 98.3% confidence intervals showed that, relative to UC, SBP reduction was 3.9 mm Hg (-8.5 to 0.7), 3.3 mm Hg (-7.8 to 1.2), and 2.3 mm Hg (-7.0 to 2.4) greater in GMV-MF, GMV, and MF, respectively. GMV and GMV-MF tended to benefit women, and MF and GMV-MF tended to benefit poorer individuals. Active participation in GMV-MF was associated with greater benefit.

CONCLUSIONS

A strategy combining GMV and MF for individuals with diabetes or hypertension in Kenya led to clinically meaningful SBP reductions associated with cardiovascular benefit. Although the significance threshold was not met in pairwise comparison hypothesis testing, confidence intervals for GMV-MF were consistent with impacts ranging from substantive benefit to neutral effect relative to UC. Incorporating social determinants of health into care delivery for chronic diseases has potential to improve outcomes. (Bridging Income Generation With Group Integrated Care [BIGPIC]; NCT02501746).

Promising Novel Biomarkers in Cardiovascular Diseases

Cardiovascular diseases remain the most common causes of death globally, according to the World Health Organization. In recent years, a great number of biomarkers have been investigated, whereas only some have gained value in the diagnosis, prognosis, and risk stratification of different cardiovascular illnesses. As numerous studies have investigated the diagnostic yield of novel biomarkers in various disease entities every year, this review aims to provide an overview of the current status of four promising representatives. In particular, this manuscript refers to soluble suppression of tumorigenicity 2 (sST2), heart-type fatty acid binding protein (H-FABP), growth differentiation factor (GDF-15) and soluble urokinase-type plasminogen activator receptor (suPAR). These markers are of special interest as they are thought to provide an accurate estimate of cardiovascular risk in certain patient populations, especially those with pre-existing diseases, such as obesity or diabetes mellitus. We sought to give an overview of their function, individual diagnostic and predictive value and determination in the laboratory. A review of the literature regarding the aforementioned cardiovascular biomarkers yielded manifold results with respect to their individual diagnostic and prognostic value. Yet, the clinical relevance of these findings remains unclear, warranting further studies to identify their optimal use in clinical routine.

Inverse association between dietary vitamin A intake and new-onset hypertension

BACKGROUND & AIMS

The prospective relation of dietary vitamin A intake with hypertension remains uncertain. We aimed to investigate the relationship of dietary vitamin A intake with new-onset hypertension and examine possible effect modifiers in general population.

METHODS

This prospective cohort study included 12,245 participants who were free of hypertension at baseline from China Health and Nutrition Survey (CHNS). Dietary intake was measured by 3 consecutive 24-h dietary recalls combined with a household food inventory. The study outcome was new-onset hypertension, defined as systolic blood pressure ≥140 mmHg and/or diastolic blood pressure ≥90 mmHg or diagnosed by physician or under antihypertensive treatment during the follow-up.

RESULTS

During a median follow-up duration of 6.1 years, a total of 4,304 (35.1%) participants developed new-onset hypertension. Overall, there was an L-shaped relation of total dietary vitamin A intake with new-onset hypertension (P for nonlinearity <0.001). Accordingly, compared with participants with lower vitamin A intake (quartile 1, <227.3 μg RE/day), those with higher vitamin A intake (quartile 2-4, ≥227.3 μg RE/day) had a significantly lower risk of new-onset hypertension (adjusted HR, 0.73; 95%CI: 0.63, 0.78). Similar results were found for plant-derived vitamin A intake (adjusted HR, 0.65; 95% CI, 0.61, 0.70) or animal-derived vitamin A intake (adjusted HR, 0.76; 95% CI, 0.70, 0.82).

CONCLUSIONS

There was a L-shaped relation of dietary vitamin A intake with new-onset hypertension in general Chinese adults. Our results emphasized the importance of maintaining relatively higher vitamin A intake levels for the prevention of hypertension.

Socioeconomic Impact of Hospitalization Expenditure for Treatment of Noncommunicable Diseases in India: A Repeated Cross-Sectional Analysis of National Sample Survey Data, 2004 to 2018

OBJECTIVES

This article explores the consequences of hospitalization expenditure on noncommunicable diseases (NCD) and its impact on out-of-pocket expenditure (OOPE), catastrophic health expenditure, impoverishment, and hardship financing of households in India.

METHODS

Data on hospitalized cases of NCDs from the 3 rounds of National Sample Surveys (NSS) (2004, 2014, 2018) were used. Bivariate and multivariate analyses were conducted to investigate the socioeconomic differentials of the impact of OOPE on catastrophic health expenditure, impoverishment, and exposure to hardship financing.

RESULTS

Rural households had greater exposure to catastrophic health expenditure but urban households had higher risk of impoverishment due to OOPE. Older patients (aged ≥60 years) had the highest hospitalization rate per 100 000, including increase in average healthcare expenditure from 2004 to 2018. At 10% and 30% thresholds, 50% and 25% of the households, respectively, faced catastrophic health expenditure across all the 3 rounds. Due to OOPE on hospitaliation treatment for NCDs, about 3.8%, 7.4% and 4.8% of households fell below poverty line, and percentage shortfall in income for the population from the poverty line was 3%, 4.9% and 3%, in 2004, 2014 and 2018 respectively. Percentage of households facing hardship financing reduced from 49.2% in 2004 to 24.4% 2014 and 12.7% in 2018.

CONCLUSION

OOPE by households are still very high and hence the higher effects of CHE, impoverishment and exposure to hardship financing due to health expenditure in India. This study proposes that along with increase in budgetary allocations for healthcare, the government should develop suitable policies to expand the effectiveness of government-sponsored health insurance, such as developing a specific NCD service package to be included in the health insurance program.

Accurate and Efficient Lipoprotein Detection Based on the HCR-DNAzyme Platform

Cardiovascular disease is one of the main causes of death in the world, which is closely associated with dyslipidemia. Dyslipidaemia is usually manifested as a relatively higher level of low-density lipoprotein (LDL) and lower level of high-density lipoprotein (HDL). Thus, the quantitative detection of the LDL and HDL particles is of great importance to predict the risk of cardiovascular diseases. However, the traditional methods can only indirectly reflect the HDL/LDL particle concentrations by detecting the cholesterol or proteins in HDL/LDL particles and are always laborious and time-consuming. Thus, the accurate and efficient approach for the detection of intact HDL and LDL particles is still lacking so far. We developed an enzyme- and isolation-free method to measure the concentration of HDL and LDL based on DNAzyme and hybridization chain reaction (HCR)-based signal amplification. This method can be used to directly and accurately detect the concentration of "actual" HDL and LDL particles instead of the cholesterol in HDL and LDL, with limits of detection of 10 and 30 mg/dL, respectively, which also satisfied the lipoprotein analysis in clinical samples. Therefore, this HCR-DNAzyme platform has great potential in clinical applications and health management.

Effectiveness of Telmisartan on Blood Pressure Control in Hypertensive Patients in India: A Real-World Retrospective Study from Electronic Medical Records

INTRODUCTION

The effectiveness of telmisartan has been reported in Indian clinical trials; however, real-world data are limited. We aimed to provide real-world evidence regarding the effectiveness of telmisartan as monotherapy or in combination with other antihypertensive drugs (AHDs) in Indian patients with essential hypertension.

METHODS

Electronic medical record data of adult patients diagnosed with essential hypertension (≥ 140/90 mmHg) and who were prescribed telmisartan as mono- or add-on therapy were retrospectively analyzed. Patients were classified according to the number of AHD classes prescribed on initiating telmisartan. Change in systolic and diastolic blood pressure (SBP and DBP) after a month of treatment and the proportion of patients who achieved treatment goals according to the 2018 European Society of Cardiology/European Society of Hypertension guidelines were evaluated.

RESULTS

A majority (90.6%) of the 1304 patients included in the study were on telmisartan monotherapy or telmisartan + 1 AHD. The mean (95% confidence interval [CI]) change in the telmisartan monotherapy group was SBP (-13.3 [-14.6, -12.0] mmHg) and DBP (-7.2 [-7.9, -6.5] mmHg), and the mean (95% CI) change in the telmisartan + 1 AHD group was SBP (-10.8 [-13.1, -8.5] mmHg) and DBP (-6.5 [-7.7, -5.3] mmHg) (P < 0.001 for all). SBP and DBP goals were achieved by 35.9% and 47.3% of patients on telmisartan monotherapy and by 35.9% and 46.8% of patients on telmisartan + 1 AHD. Among patients with comorbid diabetes, the mean (95% CI) change in the telmisartan monotherapy group was SBP (-13.3 [-15.0, -11.6] mmHg) and DBP (-7.3 [-8.2, -6.5] mmHg), and the mean (95% CI) change in the telmisartan + 1 AHD group was SBP (-13.0 [-16.5, -9.5] mmHg) and DBP (-6.9 [-8.7, -5.1] mmHg) (P < 0.001 for all). SBP and DBP goals were achieved by 31.7% and 39.7% of patients on telmisartan monotherapy and by 31.9% and 41.8% of patients on telmisartan + 1 AHD.

CONCLUSION

Telmisartan may be a good candidate for blood pressure control in Indian patients with essential hypertension and comorbidities.

Prevalence and trends of the diabetes epidemic in urban and rural India: A pooled systematic review and meta-analysis of 1.7 million adults

PURPOSE

India has experienced a recent sharp increase in diabetes/pre-diabetes. We conducted a systematic-review and meta-analyses to describe the most recent prevalence and trends of pre-diabetes/diabetes in urban and rural India.

METHODS

MethodsA literature search was conducted in PubMed and Scopus databases for population-based studies describing prevalence of diabetes/pre-diabetes in urban/rural populations. Trends were analysed in rural and urban settings overall, genderwise and statewise.

RESULTS

The study reports data from 1,778,706 adults in India (69-studies), from surveys conducted from 1972-2017. Prevalence of diabetes increased in both rural and urban India from 2.4% and 3.3% in 1972 to 15.0% and 19.0% respectively in year 2015-2019. This was independently observed in both genders. Similar increasing prevalence was observed for pre-diabetes, overall and in both genders. In the latest decade (2010-2019) rural and urban prevalence was highest in states of Goa (17.4%) and Tamil Nadu (24.0%) respectively. Statewise analysis observed a wide disparity in prevalence between the North and the South of India.

CONCLUSION

Pooled estimates show a relatively high burden of diabetes and pre-diabetes in rural and urban India, with narrowed urban-rural gap. Hence, it is important to plan urgent primary and secondary prevention strategies to minimize further increase in areas with high prevalence.

Extracellular vesicles: Potential impact on cardiovascular diseases

Extracellular vesicles (EVs) have received considerable attention in biological and clinical research due to their ability to mediate cell-to-cell communication. Based on their size and secretory origin, EVs are categorized as exosomes, microvesicles, and apoptotic bodies. Increasing number of studies highlight the contribution of EVs in the regulation of a wide range of normal cellular physiological processes, including waste scavenging, cellular stress reduction, intercellular communication, immune regulation, and cellular homeostasis modulation. Altered circulating EV level, expression pattern, or content in plasma of patients with cardiovascular disease (CVD) may serve as diagnostic and prognostic biomarkers in diverse cardiovascular pathologies. Due to their inherent characteristics and physiological functions, EVs, in turn, have become potential candidates as therapeutic agents. In this review, we discuss the evolving understanding of the role of EVs in CVD, summarize the current knowledge of EV-mediated regulatory mechanisms, and highlight potential strategies for the diagnosis and therapy of CVD. We also attempt to look into the future that may advance our understanding of the role of EVs in the pathogenesis of CVD and provide novel insights into the field of translational medicine.

Phytotherapy for Cardiovascular Disease: A Bench-to-Bedside Approach

At present, cardiovascular disease (CVD) remains the leading cause of morbidity and mortality worldwide, and global trends suggest that this panorama will persist or worsen in the near future. Thus, optimization of treatment strategies and the introduction of novel therapeutic alternatives for CVD represent key objectives in contemporary biomedical research. In recent years, phytotherapy-defined as the therapeutic use of whole or minimally modified plant components-has ignited large scientific interest, with a resurgence of abundant investigation on a wide array of medicinal herbs (MH) for CVD and other conditions. Numerous MH have been observed to intervene in the pathophysiology of CVD via a myriad of molecular mechanisms, including antiinflammatory, anti-oxidant, and other beneficial properties, which translate into the amelioration of three essential aspects of the pathogenesis of CVD: Dyslipidemia, atherosclerosis, and hypertension. Although the preclinical data in this scenario is very rich, the true clinical impact of MH and their purported mechanisms of action is less clear, as large-scale robust research in this regard is in relatively early stages and faces important methodological challenges. This review offers a comprehensive look at the most prominent preclinical and clinical evidence currently available concerning the use of MH in the treatment of CVD from a bench-to-bedside approach.

Estimation and determinants of direct medical costs of ischaemic heart disease, stroke and hypertensive heart disease: evidence from two major hospitals in Cameroon

Background

Cardiovascular disease (CVD) is the largest contributor to the non-communicable diseases (NCD) burden in Cameroon, but data on its economic burden is lacking.

Methods

A prevalence-based cost-of-illness study was conducted from a healthcare provider perspective and enrolled patients with ischaemic heart disease (IHD), ischaemic stroke, haemorrhagic stroke and hypertensive heart disease (HHD) from two major hospitals between 2013 and 2017. Determinants of cost were explored using multivariate generalized linear models.

Results

Overall, data from 850 patients: IHD (n = 92, 10.8%), ischaemic stroke (n = 317, 37.3%), haemorrhagic stroke (n = 193, 22.7%) and HHD (n = 248, 29.2%) were analysed. The total cost for these CVDs was XAF 676,694,000 (~US$ 1,224,918). The average annual direct medical costs of care per patient were XAF 1,395,200 (US$ 2400) for IHD, XAF 932,700 (US$ 1600) for ischaemic stroke, XAF 815,400 (US$ 1400) for haemorrhagic stroke, and XAF 384,300 (US$ 700) for HHD. In the fully adjusted models, apart from history of CVD event (β = − 0.429; 95% confidence interval − 0.705, − 0.153) that predicted lower costs in patients with IHD, having of diabetes mellitus predicted higher costs in patients with IHD (β = 0.435; 0.098, 0.772), ischaemic stroke (β = 0.188; 0.052, 0.324) and HHD (β = 0.229; 0.080, 0.378).

Conclusions

This study reveals substantial economic burden due to CVD in Cameroon. Diabetes mellitus was a consistent driver of elevated costs across the CVDs. There is urgent need to invest in cost-effective primary prevention strategies in order to reduce the incidence of CVD and consequent economic burden on a health system already laden with the impact of communicable diseases.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12913-021-06146-4.

Risk of fatal and nonfatal coronary heart disease and stroke events among adult patients with hypertension: basic Markov model inputs for evaluating cost-effectiveness of hypertension treatment: systematic review of cohort studies

Objectives

Hypertension is a risk factor for a number of vascular and cardiac complications. A Markov like simulation based on cardiovascular disease (CVD) policy model is being used for evaluating cost-effectiveness of hypertension treatment. Stroke, angina, myocardial infarction (MI), cardiac arrest and all-cause mortality were only included CVD outcome variables in the model. Therefore this systematic review was conducted to evaluate completeness of CVD policy model for evaluation of cost-effectiveness across different regions.

Key findings

Fourteen cohort studies involving a total of 1 674 773 hypertensive adult population and 499 226 adults with treatment resistant hypertension were included in this systematic review. Hypertension is clearly associated with coronary heart disease (CHD) and stroke mortality, unstable angina, stable angina, MI, heart failure (HF), sudden cardiac death, transient ischemic attack, ischemic stroke, sub-arachnoid hemorrhage, intracranial hemorrhage, peripheral arterial disease (PAD), and abdominal aortic aneurism (AAA). Lifetime risk of developing HF is higher among hypertensives across all ages, with slight variation among regions. Treatment resistant hypertension is associated with higher relative risk of developing major CVD events and mortality when compared with the non-resistant hypertension.

Summary

The CVD policy model can be used in most of the regions for evaluation of cost-effectiveness of hypertension treatment. However, hypertension is highly associated with HF in Latin America, Eastern Europe, and Sub-Saharan Africa. Therefore, it is important to consider HF in CVD policy model for evaluating cost-effectiveness of hypertension treatment in these regions. We do not suggest the inclusion of PAD and AAA in CVD policy model for evaluating cost-effectiveness of hypertension treatment due to lack of sufficient evidence. Researchers should consider the effect of treatment resistant hypertension either through including in the basic model or during setting the model assumptions.

Complex Relationship Between Cardiac Fibroblasts and Cardiomyocytes in Health and Disease

Cardiac fibroblasts are the primary cell type responsible for deposition of extracellular matrix in the heart, providing support to the contracting myocardium and contributing to a myriad of physiological signaling processes. Despite the importance of fibrosis in processes of wound healing, excessive fibroblast proliferation and activation can lead to pathological remodeling, driving heart failure and the onset of arrhythmias. Our understanding of the mechanisms driving the cardiac fibroblast activation and proliferation is expanding, and evidence for their direct and indirect effects on cardiac myocyte function is accumulating. In this review, we focus on the importance of the fibroblast-to-myofibroblast transition and the cross talk of cardiac fibroblasts with cardiac myocytes. We also consider the current use of models used to explore these questions.

National trends in age-standardized mortality attributable to hypertension in Peru

Introduction:

Hypertension (HTN) is a public health problem. The prevalence and mortality rates are significantly higher in middle and low-income countries, such as Peru. This study aimed to determine the trend of mortality attributable to HTN for the 2005-2016 period in Peru.

Methods:

We conducted a secondary analysis based on death certificates provided by the Ministry of Health. We applied linear regression models to test the HTN mortality rate trend.

Results:

The age-standardized HTN mortality per 100,000 inhabitants decreased from 14.43 for the 2005 to 2010 period to 11.12 for the 2011 to 2016 period. The coast was the natural region with the highest decrease in mortality rate. Moreover, Tumbes, Callao, and Lambayeque were regions with the highest decline in mortality rate.

Conclusion:

The age-standardized mortality attributable to HTN decreased in Peru, with variations in both natural and political regions of the country.

Predictors of hypertension detection in English general practices: a cross sectional study

BACKGROUND

Worldwide, high systolic blood pressure is the leading risk factor for deaths and disability-adjusted life-years but has been historically under-detected. This study aimed to quantify differences between estimated and practice-detected prevalences of hypertension across English general practices, and to determine how variations in detected prevalence could be explained by population-level and service-level factors.

METHODS

Descriptive statistics, pair wise correlations between the independent variables and a multivariable regression analysis were undertaken. In the regression model, the outcome was detected hypertension prevalence, adjusted for estimated prevalence, person-related and disease-related determinants of illness and characteristics of general practices.

RESULTS

Detected prevalence was substantially lower than estimated prevalence (mean difference 16.23%; standard deviation 2.88%). Higher detected prevalence was associated with increased deprivation, increased non-white ethnicity and urban location. Lower detected prevalence was associated with larger list sizes, more general practitioners and being located in the South outside London. The final multivariable model's adjusted R2 value was 0.75.

CONCLUSIONS

Substantial under-detection of hypertension is widespread across England. Independent of estimated prevalence, factors associated with greater morbidity and population density predicted higher detected prevalence. Identifying patients with undetected hypertension and coordinating care for these patients will require further resources and logistical support in community settings.

Utilization, Cost, and Affordability of Antihypertensive Therapy in Bulgaria

ACE- inhibitors, angiotensin receptor blockers, beta-blockers, Ca- antagonists are recommended as first-line monotherapy for hypertension. The aim of the current study is to analyze expenditures paid by the National Health Insurance Fund (NHIF) after introducing the budget cap cost-containment measure and its impact on affordability and utilization. The study is a retrospective, observational analysis of expenditure on main groups' antihypertensive medicines: beta blockers, calcium channel blockers, ACE- inhibitors, and AT receptor blockers. The cost paid by the NHIF two years before (2016-2017), and after (2018-2019) the introduction of the budget cap measure was evaluated. Utilization and affordability data covering antihypertensive therapy were retrospectively calculated and analyzed during 2016-2019. The reimbursed expenditures on sartans, ACE-inhibitors, and β-blockers decreased in absolute terms in 2019 compared to that in 2016. There are no statistically significant differences, excluding the group of sartans. The result reveals decreasing utilization of ACE-inhibitors and β-blockers, which is the most significant for enalapril and bisoprolol. Affordability increases during the observed period because less than a working day income is sufficient for monthly therapy. Patients with hypertension in Bulgaria have access to affordable first-line antihypertensive medicines. Despite the stable and low prices, utilization mainly decreases. The reimbursed amount is reduced with a low rate or remains similar to that found at the beginning of the observed period. The results of the implemented budget cap as a measure to control NHIF cost are not evident and not fully expressed on the market for the first-line antihypertensive therapy.

Extreme temperatures and cardiovascular mortality: assessing effect modification by subgroups in Ganzhou, China

Background

Many people die from cardiovascular diseases each year, and extreme temperatures are regarded as a risk factor for cardiovascular deaths. However, the relationship between temperature and cardiovascular deaths varies in different regions because of population density, demographic inequality, and economic situation, and the evidence in Ganzhou, China is limited and inconclusive.

Objective

This study aimed to assess extreme temperature-related cardiovascular mortality and identify the potential vulnerable people.

Methods

After controlling other meteorological measures, air pollution, seasonality, relative humidity, day of the week, and public holidays, we examined temperature-related cardiovascular mortality along 21 lag days by Poisson in Ganzhou, China.

Results

A J-shaped relationship was observed between mean temperature and cardiovascular mortality. Extremely low temperatures substantially increased the relative risks (RR) of cardiovascular mortality. The effect of cold temperature was delayed by 2–6 days and persisted for 4–10 days. However, the risk of cardiovascular mortality related to extremely high temperatures was not significant (p > 0.05). Subgroup analysis indicated that extremely low temperatures had a stronger association with cardiovascular mortality in people with cerebrovascular diseases (RR: 1.282, 95% confidence interval [CI]: 1.020–1.611), males (RR: 1.492, 95% CI: 1.175–1.896), married people (RR: 1.590, 95% CI: 1.224–2.064), and people above the age of 65 years (RR: 1.641, 95% CI: 1.106–2.434) than in people with ischemic heart disease, females, unmarried people, and the elderly (≥65 years old), respectively.

Conclusions

The type of cardiovascular disease, sex, age, and marital status modified the effects of extremely low temperatures on the risk of cardiovascular mortality. These findings may help local governments to establish warning systems and precautionary measures to reduce temperature-related cardiovascular mortality.

Individual interventions to improve adherence to pharmaceutical treatment, diet and physical activity among adults with primary hypertension. A systematic review protocol

INTRODUCTION

Hypertension is a chronic disease with 31% worldwide prevalence in adults. It has been associated with non-adherence to therapeutic regime with a negative impact on the prognosis of the disease and healthcare-associated costs. So, it is necessary to identify effective interventions to improve adherence among the afflicted population. The objective of this protocol is to describe the methods for a systematic review that will evaluate the effect of individual interventions so as to improve adherence to the prescribed pharmacological treatment, as well as to prescribed diet and physical activity in adults with primary hypertension.

METHODS AND ANALYSIS

A systematic search of studies will be conducted in PubMed/MEDLINE, BVS, CINAHL, Embase, Cochrane and Scopus databases. Randomised and non-randomised clinical studies conducted in human beings, published from 1 January 2009 to 13 December 2019, are to be included, in any language. Adherence to pharmacological treatment, diet and physical activity, measured by direct and indirect methods, will be the primary outcome. Two independent reviewers will select relevant studies and will extract the data following the Cochrane's Handbook for Systematic Reviews of Approach and the Preferred Reporting Items for Systematic Reviews and Meta-Analysis Protocols. Methodological quality will be evaluated using the risk-of-bias (RoB) 2 and Risk of Bias in Non-randomised Studies - of Interventions (ROBINS-I) tools. Risk of bias will also be evaluated, and if the criteria are met, a meta-analysis will be finally performed.

ETHICS AND DISSEMINATION

Information to be analysed is of a grouped nature, and given that its sources are published studies, no ethics committee approval is required. Results will be published in scientific journals, and in conferences, seminars and symposiums. Copyrights will be addressed by giving due credit through bibliographic references.

PROSPERO REGISTRATION NUMBER

CRD42020147655.

Effect of Nurse-Based Management of Hypertension in Rural Western Kenya

Background

Elevated blood pressure is the leading cause of death worldwide; however, treatment and control rates remain very low. An expanding literature supports the strategy of task redistribution of hypertension care to nurses.

Objective

We aimed to evaluate the effect of a nurse-based hypertension management program in Kenya.

Methods

We conducted a retrospective data analysis of patients with hypertension who initiated nurse-based hypertension management care between January 1, 2011, and October 31, 2013. The primary outcome measure was change in systolic blood pressure (SBP) over one year, analyzed using piecewise linear mixed-effect models with a cut point at 3 months. The primary comparison of interest was care provided by nurses versus clinical officers. Secondary outcomes were change in diastolic blood pressure (DBP) over one year, and blood pressure control analyzed using a zero-inflated Poisson model.

Results

The cohort consisted of 1051 adult patients (mean age 61 years; 65% women). SBP decreased significantly from baseline to three months (nurse-managed patients: slope -4.95 mmHg/month; clinical officer-managed patients: slope -5.28), with no significant difference between groups. DBP also significantly decreased from baseline to three months with no difference between provider groups. Retention in care at 12 months was 42%.

Conclusions

Nurse-managed hypertension care can significantly improve blood pressure. However, retention in care remains a challenge. If these results are reproduced in prospective trial settings with improvements in retention in care, this could be an effective strategy for hypertension care worldwide.

Predicting hypertension using machine learning: Findings from Qatar Biobank Study

Background and objective

Hypertension, a global burden, is associated with several risk factors and can be treated by lifestyle modifications and medications. Prediction and early diagnosis is important to prevent related health complications. The objective is to construct and compare predictive models to identify individuals at high risk of developing hypertension without the need of invasive clinical procedures.

Methods

This is a cross-sectional study using 987 records of Qataris and long-term residents aged 18₊ years from Qatar Biobank. Percentages were used to summarize data and chi-square tests to assess associations. Predictive models of hypertension were constructed and compared using three supervised machine learning algorithms: decision tree, random forest, and logistics regression using 5-fold cross-validation. The performance of algorithms was assessed using accuracy, positive predictive value (PPV), sensitivity, F-measure, and area under the receiver operating characteristic curve (AUC). Stata and Weka were used for analysis.

Results

Age, gender, education level, employment, tobacco use, physical activity, adequate consumption of fruits and vegetables, abdominal obesity, history of diabetes, history of high cholesterol, and mother’s history high blood pressure were important predictors of hypertension. All algorithms showed more or less similar performances: Random forest (accuracy = 82.1%, PPV = 81.4%, sensitivity = 82.1%), logistic regression (accuracy = 81.1%, PPV = 80.1%, sensitivity = 81.1%) and decision tree (accuracy = 82.1%, PPV = 81.2%, sensitivity = 82.1%. In terms of AUC, compared to logistic regression, while random forest performed similarly, decision tree had a significantly lower discrimination ability (p-value<0.05) with AUC’s equal to 85.0, 86.9, and 79.9, respectively.

Conclusions

Machine learning provides the chance of having a rapid predictive model using non-invasive predictors to screen for hypertension. Future research should consider improving the predictive accuracy of models in larger general populations, including more important predictors and using a variety of algorithms.

Dietary Strategies for Metabolic Syndrome: A Comprehensive Review

Metabolic syndrome is a cluster of metabolic risk factors, characterized by abdominal obesity, dyslipidemia, low levels of high-density lipoprotein cholesterol (HDL-c), hypertension, and insulin resistance. Lifestyle modifications, especially dietary habits, are the main therapeutic strategy for the treatment and management of metabolic syndrome, but the most effective dietary pattern for its management has not been established. Specific dietary modifications, such as improving the quality of the foods or changing macronutrient distribution, showed beneficial effects on metabolic syndrome conditions and individual parameters. On comparing low-fat and restricted diets, the scientific evidence supports the use of the Mediterranean Dietary Approaches to Stop Hypertension (DASH) diet intervention as the new paradigm for metabolic syndrome prevention and treatment. The nutritional distribution and quality of these healthy diets allows health professionals to provide easy-to-follow dietary advice without the need for restricted diets. Nonetheless, energy-restricted dietary patterns and improvements in physical activity are crucial to improve the metabolic disturbances observed in metabolic syndrome patients.

Health and productivity burden of coronary heart disease in the working Indonesian population using life-table modelling

OBJECTIVES

The impact of coronary heart disease (CHD) and its effect on work productivity at a population level remains unknown in Indonesia. This study estimates the health and productivity lost to CHD in terms of years of life, quality-adjusted life years (QALYs) and productivity-adjusted life years (PALYs).

SETTING AND PARTICIPANTS

A life-table model was constructed to simulate the experiences of Indonesians currently aged 15-54 years (working age) with CHD, followed-up to 55 years (retirement age). The life-table analysis was then repeated assuming that the cohort did not have CHD. Differences in the results reflected the impact of CHD. Demographical, prevalence and mortality data were based on the 2017 Global Burden of Disease study and 2018 Indonesian National Health Survey. Costs, productivity indices and utilities were derived from published sources. The cost of each PALY was assumed to be equivalent to gross domestic product per equivalent full-time worker (US$11 765). Future costs and outcomes were discounted by 3% annually.

PRIMARY AND SECONDARY OUTCOME MEASURES

Differences in total deaths, years of life and PALYs represented the impact of CHD.

RESULTS

At present, 1 954 543 (1.45%) Indonesians of working-age have CHD. By retirement age, it was estimated that CHD resulted in 32 492 (36.6%) excess deaths, 128 132 (0.5%) years of life lost, 2 331 495 (10.5%) QALYs lost and 1 589 490 (6.9%) PALYs lost. The economic impact of lost productivity amounted to US$33.3 billion, and healthcare costs to US$139 billion.

CONCLUSION

The health and economic burden of CHD in Indonesia looms large. This highlights the importance of its prevention and control, strategies for which, if effective, will deliver financial return.

Critical appraisal of a mHealth-assisted community-based cardiovascular disease risk screening program in rural Kenya: an operational research study

Community health workers (CHWs) can participate in the cascade of hypertension and diabetes management in low and middle-income countries (LMICs). Their services may be enhanced with mobile health (mHealth) tools. In this operational research study, we describe the AFYACHAT mHealth-assisted cardiovascular health screening program in rural Kenya. In this study, A CHW screened a convenience sample of adults ≥ 40 years old in rural Kenya for cardiovascular disease (CVD) risk using the two-way AFYACHAT mHealth instrument. AFYACHAT analyzes a patient's age, sex, smoking, diabetes and systolic blood pressure and provides a four-tiered 10-year CVD risk score. User acceptability was assessed by an end-of-study interview with the CWH. Automated error logs were analyzed. Patient satisfaction was measured with a six-question satisfaction questionnaire. Screened participants with high CVD risk were followed-up via telephone to explore any actions taken following screening. In 24 months, one CHW screened 1650 participants using AFYACHAT. The 10-year risk of CVD was <10% for 1611 (98%) patients, 10 to <20% for 26 (1.6%), 20 to <30% in 12 (0.7%), and ≥30% for 1 (0.1%). The point prevalence of hypertension and diabetes was 27% and 1.9%, respectively. Seventy-five percent of participants with elevated CVD risk sought further medical care. There was high acceptability, a 15% miscode error rate, and high participant satisfaction with the screening program. Our operational research outlines how AFYACHAT mHealth tool can assist CHW perform rapid CVD screening; this provides a model framework for non-communicable disease screening in LMICs.

Cardiovascular disease trends in Nepal - An analysis of global burden of disease data 2017

Cardiovascular diseases (CVDs) are the leading cause of disease burden globally, disproportionately affecting low and middle-income countries. The continued scarcity of literature on CVDs burden in Nepal has thwarted efforts to develop population-specific prevention and management strategies. This article reports the burden of CVDs in Nepal including, prevalence, incidence, and disability basis as well as trends over the past two decades by age and gender. We used the Institute of Health Metrics and Evaluation's Global Burden of Diseases database on cardiovascular disease from Nepal to describe the most recent data available (2017) and trends by age, gender and year from 1990 to 2017. Data are presented as percentages or as rates per 100,000 population. In 2017, CVDs contributed to 26·9% of total deaths and 12·8% of total DALYs in Nepal. Ischemic heart disease was the predominant CVDs, contributing 16·4% to total deaths and 7·5% to total DALYs. Cardiovascular disease incidence and mortality rates have increased from 1990 to 2017, with the burden greater among males and among older age groups. The leading risk factors for CVDs were determined to be high systolic blood pressure, high low density lipoprotein cholesterol, smoking, air pollution, a diet low in whole grains, and a diet low in fruit. CVDs are a major public health problem in Nepal contributing to the high DALYs with unacceptable numbers of premature deaths. There is an urgent need to address the increasing burden of CVDs and their associated risk factors, particularly high blood pressure, body mass index and unhealthy diet.

Patient perspectives on interpersonal aspects of healthcare and patient-centeredness at primary health facilities: A mixed methods study in rural Eastern Uganda

INTRODUCTION

Patient-centered care (PCC) is an approach to involve patients in health care delivery, to contribute to quality of care, and to strengthen health systems responsiveness. This article aims to highlight patient perspectives by showcasing their perceptions of their experience of PCC at primary health facilities in two districts in Uganda.

METHODS

A mixed methods cross-sectional study was conducted in three public and two private primary health care facilities in rural eastern Uganda. In total, 300 patient exit survey questionnaires, 31 semi-structured Interviews (SSIs), 5 Focus Group Discussions (FGDs) and 5 feedback meetings were conducted. Data analysis was guided by a conceptual framework focusing on (1) understanding patients' health needs, preferences and expectations, (2) describing patients perceptions of their care experience according to five distinct PCC dimensions, and (3) reporting patient reported outcomes and their recommendations on how to improve quality of care.

RESULTS

Patient expectations were shaped by their access to the facility, costs incurred and perceived quality of care. Patients using public facilities reported doing so because of their proximity (78.3% in public PHCs versus 23.3% in private PHCs) and because of the free services availed. On the other hand, patients attending private facilities did so because of their perception of better quality of care (84.2% in private PHCs versus 21.7% in public PHCs). Patients expectations of quality care were expressed as the availability of medication, shorter waiting times, flexible facility opening hours and courteous health workers. Analysis of the 300 responses from patients interviewed on their perception of the care they received, pointed to higher normalized scores for two out of the five PCC dimensions considered: namely, exploration of the patient's health and illness experience, and the quality of the relationship between patient and health worker (range 62.1-78.4 out of 100). The qualitative analysis indicated that patients felt that communication with health workers was enhanced where there was trust and in case of positive past experiences. Patients however felt uncomfortable discussing psychological or family matters with health workers and found it difficult to make decisions when they did not fully understand the care provided. In terms of outcomes, our findings suggest that patient enablement was more sensitive than patient satisfaction in measuring the effect of interpersonal patient experience on patient reported outcomes.

DISCUSSION AND CONCLUSION

Our findings show that Ugandan patients have some understanding of PCC related concepts and express a demand for it. The results offer a starting point for small scale PCC interventions. However, we need to be cognizant of the challenges PCC implementation faces in resource constrained settings. Patients' expectations in terms of quality health care are still largely driven by biomedical and technical aspects. In addition, patients are largely unaware of their right to participate in the evaluation of health care. To mitigate these challenges, targeted health education focusing on patients' responsibilities and patient's rights are essential. Last but not least, all stakeholders must be involved in developing and validating methods to measure PCC.

Global Epidemiology of Ischemic Heart Disease: Results from the Global Burden of Disease Study

Background Ischemic heart disease (IHD) is a leading cause of death worldwide. Also referred to as coronary artery disease (CAD) and atherosclerotic cardiovascular disease (ACD), it manifests clinically as myocardial infarction and ischemic cardiomyopathy. This study aims to evaluate the epidemiological trends of IHD globally. Methods The most up-to-date epidemiological data from the Global Burden of Disease (GBD) dataset were analyzed. GBD collates data from a large number of sources, including research studies, hospital registries, and government reports. This dataset includes annual figures from 1990 to 2017 for IHD in all countries and regions. We analyzed the incidence, prevalence, and disability-adjusted life years (DALY) for IHD. Forecasting for the next two decades was conducted using the Statistical Package for the Social Sciences (SPSS) Time Series Modeler (IBM Corp., Armonk, NY). Results Our study estimated that globally, IHD affects around 126 million individuals (1,655 per 100,000), which is approximately 1.72% of the world's population. Nine million deaths were caused by IHD globally. Men were more commonly affected than women, and incidence typically started in the fourth decade and increased with age. The global prevalence of IHD is rising. We estimated that the current prevalence rate of 1,655 per 100,000 population is expected to exceed 1,845 by the year 2030. Eastern European countries are sustaining the highest prevalence. Age-standardized rates, which remove the effect of population changes over time, have decreased in many regions. Conclusions IHD is the number one cause of death, disability, and human suffering globally. Age-adjusted rates show a promising decrease. However, health systems have to manage an increasing number of cases due to population aging.

Modelling the effect of compliance with WHO salt recommendations on cardiovascular disease mortality and costs in Brazil

INTRODUCTION

Cardiovascular diseases (CVDs) represent the main cause of death among non-communicable diseases (NCDs) in Brazil, and they have a high economic impact on health systems. Most populations around the world, including Brazilians, consume excessive sodium, which increases blood pressure and the risk of CVDs.

OBJECTIVE

To model the estimated deaths and costs associated with CVDs, which are mediated by increased blood pressure attributable to excessive sodium consumption in adults from the perspective of the Brazilian public health system in 2017.

METHODS

We employed two macrosimulation methods, using top-down approaches and based on the same relative risks. The models estimated the mortality and costs-of-illness attributable to excessive sodium intake and mediated by hypertension for adults aged over 30 years in 2017. Direct healthcare cost data (inpatient care, outpatient care and medications) were extracted from the Ministry of Health information systems and official records.

RESULTS

In 2017, an estimated 46,651 deaths from CVDs could have been prevented if the average sodium consumption had been reduced to 2 g/day in Brazil. Premature deaths related to excessive sodium consumption caused 575,172 Years of Life Lost and US$ 752.7 million in productivity losses to the economy. In the same year, the National Health System's costs of hospitalizations, outpatient care and medication for hypertension attributable to excessive sodium consumption totaled US$192.1 million. The main causes of death and costs associated with CVDs were coronary heart disease and stroke, followed by hypertensive disease, heart failure and aortic aneurysm.

CONCLUSION

Excessive sodium consumption is estimated to account for 15% of deaths by CVDs and to 14% of the inpatient and outpatient costs associated with CVD. It also has high societal costs in terms of premature deaths. CVDs are a leading cause of disease and economic burden on the global, regional and country levels. As a largely preventable and treatable conditions, CVDs require the strengthening of cost-effective policies, supported by evidence, including modeling studies, to reduce the costs relating to illness borne by the Brazilian public health system and society.

Determinants of hypertension in Nepal using odds ratios and prevalence ratios: an analysis of the Demographic and Health Survey 2016

This cross-sectional study investigated the factors associated with hypertension among Nepalese adults aged 18 years or above using data from the Nepal Demographic and Health Survey 2016. Prevalence ratios (PRs) and odds ratios (ORs) were obtained using log-binomial regression and logistic regression, respectively. Initially, unadjusted PRs and ORs were obtained. The variables that yielded a significance level below 0.2 in unadjusted analyses were included in the multivariable analysis. The overall prevalence of hypertension among the 13,393 participants (58% male and 61.2% urban) was 21.1% (n = 2827). In the adjusted analysis, those aged 30-49 years (adjusted PR [APR]: 3.1, 95% Confidence Interval (CI): 2.6, 3.7; adjusted OR [AOR]: 3.6, 95% CI: 2.9, 4.5), 50-69 years (APR: 5.3, 95% CI: 4.4, 6.6; AOR: 8.2, 95% CI: 6.4, 10.4) and ≥70 years (APR: 7.3, 95% CI: 5.8, 9.2; AOR: 13.6, 95% CI: 10.1, 18.3) were more likely to be hypertensive than younger participants aged 18-29 years. Males (APR: 1.3, 95% CI: 1.2, 1.4; AOR: 1.5, 95% CI: 1.3, 1.7), overweight/obese participants (APR: 1.8, 95% CI: 1.7, 2.0; AOR: 2.4, 95% CI: 2.2, 2.8) and those in the richest wealth quintile (APR: 1.3, 95% CI: 1.1, 1.5; AOR: 1.5, 95% CI: 1.1, 1.9) had higher prevalences and odds of hypertension than their female, normal weight/underweight and poorest wealth quintile counterparts, respectively. Those residing in Province 4 (APR: 1.2, 95% CI: 1.0, 1.5; AOR: 1.4, 95% CI: 1.1, 1.8) and Province 5 (APR: 1.2, 95% CI: 1.0, 1.4; AOR: 1.3, 95% CI: 1.1, 1.7) were more likely to be hypertensive than those residing in Province 1. The point estimate was inflated more in magnitude by ORs than by PRs, but the direction of association remained the same. Public health programmes in Nepal aimed at preventing hypertension should raise awareness among the elderly, males, individuals in the richest wealth quintile and the residents of Provinces 4 and 5.

Measuring satisfaction with health care services for Vietnamese patients with cardiovascular diseases

Patient satisfaction is a useful predictor of adherence and outcomes of cardiovascular diseases (CVDs) treatment. This study explored the satisfaction of Vietnamese CVDs inpatients and outpatients using a scale specifically designed for CVDs patients and examined the factors associated with satisfaction towards CVDs treatment services. Interviews of 600 patients at the Hanoi Heart Hospital were conducted. We developed a measurement scale for both inpatient and outpatient services. Multivariate Tobit regression was used to determine the associated factors with patient satisfaction. For inpatients, Cronbach’s alpha reported for the domains were in the range of 0.72–0.97, while for outpatients, Cronbach’s alpha was within 0.61–0.97. Overall, patients were more satisfied with inpatient services (Mean = 81.8, SD = 5.8) than outpatient services (Mean = 79.7, SD = 5.2, p<0.05). In inpatients, the highest complete satisfaction was in “Attitude of Nurse” item (42.0%), the highest satisfaction score was in “Care and treatment” domain (Mean = 85.6, SD = 9.7) and the lowest in “Hospital facilities” domain (Mean = 78.3; SD = 9.2). Among outpatients, the highest complete satisfaction was in “Attitude of physicians when examining, guiding and explaining to the patient” item (19.7%), the highest satisfaction score was in “Attitude of medical staff” domain (Mean = 82.8; SD = 7.9) and the lowest in “Waiting time” domain (Mean = 76.6; SD = 8.2). People not having health insurances had significantly higher scores in “Waiting time”, “Hospital facilities” and “Attitude of staff” domains (for outpatients) and in “Health service accessibility”, “Hospital facilities” domains (for inpatients) as well as higher total satisfaction score than those having health insurance. Findings discovered through the application of the newly developed instrument showed low satisfaction regarding hospital facilities for inpatients and waiting time for outpatients, suggesting renovation efforts, while inferiority regarding patient satisfaction of health insurance covered patients compared to those without implied policy reform possibility. Further enhancement and validation of the developed instrument was required.

Diagnostic Precision of Anthropometric Variables for the Detection of Hypertension in Children and Adolescents

Introduction: High blood pressure (HBP) is a health problem the prevalence of which has increased in young populations. Overweight and obesity in early ages have been directly related to its development. Due to the impact of HBP, it is necessary to provide tools that facilitate its early diagnosis, with useful anthropometric variables being those that assess obesity. The objective of this paper was to determine the diagnostic accuracy of anthropometric variables to detect HBP. Methods: A cross-sectional study was conducted on 265 students aged 6-16. The diagnosis of HBP was made following the criteria proposed by the Spanish Association of Pediatrics. Through different statistical methods, the association between anthropometric variables of general obesity with HBP was analyzed. Results: Waist circumference (WC) showed the best diagnostic capacity (area under the receiver operating characteristic curve = 0.729), with a sensitivity and specificity of 72.2% and 76%, respectively, for a cut-off point of 73.5 cm. In the adjusted multivariate analysis, an association was found between HBP and anthropometric variables: WC (odds ratio (OR) = 10.7), body mass index (OR = 7.5), waist-to-height ratio (OR = 5.5) and body fat percentage (OR = 5.3) (p < 0.05). Conclusions: The anthropometric variables studied showed a moderate predictive capacity for HBP, highlighting WC, which showed the strongest association with HBP in the infant and child population.

Initiation and Single Dispensing in Cardiovascular and Insulin Medications: Prevalence and Explanatory Factors

BACKGROUND

Adherence problems have negative effects on health, but there is little information on the magnitude of non-initiation and single dispensing.

OBJECTIVE

The aim of this study was to estimate the prevalence of non-initiation and single dispensation and identify associated predictive factors for the main treatments prescribed in Primary Care (PC) for cardiovascular disease (CVD) and diabetes.

METHODS

Cohort study with real-world data. Patients who received a first prescription (2013-2014) for insulins, platelet aggregation inhibitors, angiotensin-converting enzyme inhibitors (ACEI) or statins in Catalan PC were included. The prevalence of non-initiation and single dispensation was calculated. Factors that explained these behaviours were explored.

RESULTS

At three months, between 5.7% (ACEI) and 9.1% (antiplatelets) of patients did not initiate their treatment and between 10.6% (statins) and 18.4% (ACEI) filled a single prescription. Body mass index, previous CVD, place of origin and having a substitute prescriber, among others, influenced the risk of non-initiation and single dispensation.

CONCLUSIONS

The prevalence of non-initiation and single dispensation of CVD medications and insulin prescribed in PC in is high. Patient and health-system factors, such as place of origin and type of prescriber, should be taken into consideration when prescribing new medications for CVD and diabetes.

Comparative analysis of cost-effectiveness between isosorbide-5-mononitrate and isosorbide: a retrospective real-world evaluation

Aim: The cost-effectiveness of isosorbide-5-mononitrate (5-ISMN) and isosorbide dinitrate (ISDN) in real-world use in patients with coronary heart disease (CHD; either angina pectoris or myocardial infarction) was retrospectively compared. Method: In this retrospective real-world evaluation, patients with established CHD satisfying the following criteria were selected from information system of two tertiary hospitals in China: with pharmacy claiming for at least one injection of 5-ISMN or ISDN between July 2008 and May 2017; and, CHD patients. By using propensity score matching (PSM), we compared clinical aspects of efficacy, safety, length of hospital stay and cost during hospitalization between 5-ISMN and ISDN group. All data were processed by R statistical package v.2.13.1 (R Foundation for Statistical Computing, Vienna, Austria). Result: Of 5609 patients selected, 4047 received 5-ISMN and 1562 received ISDN. After PSM, we acquired 1555 pairs based on balancing of age, sex, insurance and comorbidities on admission. The frequency (4.2 ± 6.6-times vs 6.5 ± 9.5-times; p < 0.05) and total dosage (47.5 ± 153.4 vs 136.4 ± 261.0 mg; p < 0.05) of sublingual nitroglycerin use decreased and hypotension incidence lowered (8.0 vs 13.0%; p < 0.05) in 5-ISMN group compared with ISDN group. Hospital stay (16.0 ± 11.3 days vs 17.7 ± 13.2; p < 0.05) and hospitalization expenditure ([the ratio of cost in the study to the average hospitalization cost in the city] [odds ratio: 2.5 vs 2.6; p < 0.05]) were reduced in 5-ISMN group as with that of ISDN group. Moreover, the main component of hospitalization cost was medical consumables and medications in both the groups. Conclusion: In the present retrospective real-world evaluation, by using PSM analysis, we found that newer injection agent of 5-ISMN was associated with fewer use of sublingual nitroglycerin, less hypotension incidence, shorter length of hospital stay and less hospitalization expenditure related to its comparator ISDN in patients with established CHD. Further evaluation and clinical experience are need in different circumference for the usage of ISDN.

[Costs attributable to obesity, hypertension, and diabetes in the Unified Health System, Brazil, 2018Costos atribuibles a la obesidad, la hipertensión y la diabetes en el Sistema Único de Salud de Brasil, 2018]

Objetivo.

Estimar os custos atribuíveis a hipertensão arterial, diabetes e obesidade no Sistema Único de Saúde (SUS) no Brasil em 2018.

Métodos.

Realizou-se uma estimativa dos custos atribuíveis a doenças crônicas não transmissíveis a partir dos riscos relativos e das prevalências populacionais de hipertensão, diabetes e obesidade, considerando custos de hospitalizações, procedimentos ambulatoriais e medicamentos distribuídos pelo SUS para tratamento dessas doenças. As informações de custo foram obtidas nos sistemas de informação em saúde disponíveis no SUS. A análise explorou os custos das doenças segundo sexo e idade na população adulta.

Resultados.

Os custos totais de hipertensão, diabetes e obesidade no SUS alcançaram 3,45 bilhões de reais (R$) (IC95%: 3,15 a 3,75) em 2018, ou seja, mais de 890 milhões de dólares (US$). Desses custos, 59% foram referentes ao tratamento da hipertensão, 30% ao do diabetes e 11% ao da obesidade. No total, 72% dos custos foram com indivíduos de 30 a 69 anos de idade e 56%, com mulheres. Considerando separadamente a obesidade como fator de risco para hipertensão e diabetes, os custos atribuíveis a essa doença chegaram a R$ 1,42 bilhão (IC95%: 0,98 a 1,87), ou seja, 41% dos custos totais.

Conclusões.

As estimativas dos custos atribuíveis às principais doenças crônicas associadas à alimentação inadequada evidenciam a grande carga econômica dessas doenças para o SUS. Os dados mostram a necessidade de priorizar políticas integradas e intersetoriais para a prevenção e o controle da hipertensão, do diabetes e da obesidade e podem apoiar a defesa de intervenções como medidas fiscais e regulatórias para alcançar os objetivos da Década de Ação das Nações Unidas sobre Nutrição.

EHBP1 SNPs, Their Haplotypes, and Gene-Environment Interactive Effects on Serum Lipid Levels

The associations between single nucleotide polymorphisms (SNPs) rs2710642 and rs10496099 and their effect on the EH domain-binding protein 1 (EHBP1) gene and serum lipid profiles remain uncertain. This study was performed to investigate the two EHBP1 SNPs in Han and Maonan populations, including their association, haplotypes, and effects on serum lipid levels. Two EHBP1 SNPs in 564 Han and 796 Maonan participants were genotyped by high-throughput sequencing, and then the genotype and haplotype distributions of two EHBP1 SNPs were analyzed. Moreover, risk factors and their effects on serum lipid levels were analyzed using multivariable linear regression and logistic regression analyses. In Han and Maonan populations, a significant difference was found in the allelic and genotypic frequencies of the EHBP1 rs2710642 and rs10496099 SNPs and the alternate alleles of rs2710642A and rs10496099C might be potentially beneficial for healthy lipid levels. Medium linkage disequilibrium between the two SNPs was noted in each ethnic group, and four main haplotypes were detected. The rs2710642G-rs10496099C haplotype was associated with high triglycerides (TGs) and low high-density lipoprotein cholesterol, and the rs2710642A-rs10496099C haplotype was associated with low TGs and high apolipoprotein A1. The rs2710642G-rs10496099C haplotype was a high-risk factor for hyperlipidemia, and it interacted with smoking, fasting blood glucose, and hypertension to increase but with the female factor to decrease the prevalence of hyperlipidemia in Han individuals. The EHBP1 rs2710642 and rs10496099 SNPs and gene-environment interactions were associated with serum lipid profiles and hyperlipidemia, which is of ethnic specificity to our study populations.

An overview of heart failure in low- and middle-income countries

Heart failure (HF) is a global public health concern with disproportionate socioeconomic, morbidity and mortality burden on low- and middle-income countries (LMICs). This review summarises contemporary data on the demographic and clinical characteristics, aetiologies, treatment, economic burden and outcomes of HF in LMICs. Patients with HF in LMICs are younger than those from high-income countries (HICs) and present at advanced stages of the disease. Hypertension, ischaemic heart disease (IHD), cardiomyopathy (CMO), and rheumatic heart disease (RHD) are the leading causes of HF in LMICs. The contribution of infectious diseases to HF remains prominent in many LMICs. Most health facilities in LMICs lack adequate diagnostic tools for HF, and the use of evidence-based medical and device therapies is suboptimal. Further, HF in LMICs is associated with prolonged hospital stay and high in-hospital and one-year mortality. Finally, HF has profound economic impact on individual patients who, mostly, have no health insurance, and on societies where patients are young, comprising those who have the greatest potential to contribute to economic productivity.

The Cost of Illness of Hypertension and Associated Factors at the University of Gondar Comprehensive Specialized Hospital Northwest Ethiopia, 2018

PURPOSE

Non-communicable diseases impose a significant social, economic and health burden. Hypertension, the leading contributor to the global burden of disease and a growing public health problem worldwide, is one of the most serious non-communicable diseases. In Ethiopia, empirical evidence on the economic burden of hypertension is limited. Therefore, this study aimed to measure the cost of hypertension and associated factors at the University of Gondar comprehensive specialized hospital, northwest Ethiopia.

PATIENTS AND METHODS

An institution-based cross-sectional study was conducted on 442 adult hypertensive patients using a semi-structured questionnaire to estimate the direct and indirect costs of hypertension. The human capital approach was used to calculate indirect costs. A generalized linear model was fitted to identify factors associated with the cost of hypertension at a 95% confidence level and <0.05 p-value.

RESULTS

A total of 442, 56.3% female and 64.3% stage one hypertension patients were included. The total cost of hypertension was ETB 2510.32 ($91.72) ± 2152.80 (78.65) per patient per year; The direct medical and non-medical cost constituted 60.81% and 12.17% of the total cost of hypertension, respectively. Hospitalized (exp(b)=1.87, p<0.001), using multidrug (exp(b)=1.32, p<0.000), high socioeconomic status (exp(b)=1.41,p<0.000), college and above education(exp(b)= 1.35, p<0.016), government employment (exp(b)= 1.30, p<0.012), retirement (exp(b)= 0.71, p< 0.001) and co-morbidity (exp(b)= 1.20, p<0.004) were factors significantly associated with the cost of hypertension.

CONCLUSION

The total cost of illness of hypertension is high, and direct medical cost has the highest component of the total cost of illness. Hospitalization, using multidrug, co-morbidity, attending college and above education, highest socioeconomic status and government employment were factors significantly associated with the high cost of hypertension. Therefore, prevention and early detection of complications and co-morbidity are essential to reduce hospitalization and the number of drugs to reduce the direct medical and indirect costs.

Canonical Correlation between Behavioral-Psychological Variables and Predictors of Coronary Artery Disease Prognosis

Metabolic syndrome (MetS) and severity of coronary artery disease (CAD) are considered predictors of CAD prognosis. Unhealthy lifestyles and type-D personality are associated with MetS and are potential causes of primary and secondary CAD. In this cross-sectional descriptive study, we aimed to investigate the relationship between behavioral-psychological variables and predictors of CAD prognosis. The behavioral-psychological variable set contained six lifestyle categories and two type-D personality categories. Descriptive analyses, t-tests, analysis of variance, Pearson’s correlation, and canonical correlation were used. The behavioral-psychological variable set was related to the predictor set for CAD prognosis, with a significant canonical variate of 0.67 (45% overlapping variance). Significant pairs of canonical variates indicated that poor physical activity and weight control (−0.77), poor dietary habits (−0.78), alcohol consumption and cigarette smoking (−0.37), lack of sleep and rest (−0.40), stress (−0.64) in the lifestyle set, higher negative affectivity (0.52), and social inhibition (0.71) in the type-D personality set were associated with a high MetS score (0.59) and severity of CAD (0.91). A combination of behavioral and psychological variables was found to be important in predicting the prognosis of CAD; therefore, interventions aimed at preventing combinations of these variables may be effective in improving CAD prognosis.

Developing and applying a costing tool for hypertension and related cardiovascular disease: Attributable costs to salt/sodium consumption

This paper proposes a costing tool for hypertension and cardiovascular disease by adapting cost-of-illness methodologies to estimate the attributable burden of excessive salt intake on cardiovascular disease. The methodology estimates the changes in blood pressure that result from each gram change in salt intake and links diet to the direct and indirect costs of cardiovascular diseases (CVD), such as coronary heart disease, stroke, hypertensive disease, aortic aneurysm, heart failure, pulmonary embolism, and rheumatic heart, using the relative risks of disease and the prevalence of salt consumption in the population. The methodology includes (a) identifying major diseases and conditions related to excessive salt intake and relevant economic cost data available, (b) quantifying the relationship between the prevalence of excessive salt intake and the associated risk of disease morbidity and mortality using population attributable risks (PAR), (c) using PARs to estimate the share of total costs directly attributed to excessive salt intake, and (d) undertaking a sensitivity analysis of key epidemiological and economic parameters. The costing tool has estimated that, in 2013, US$ 102.0 million (95% uncertainty interval-UI: US$ 96.2-107.8 million) in public hospitalizations could be saved if the average salt intake of Brazilians were reduced to 5 g/d, corresponding to 9.4% (95% UI: 8.9%-9.9%) of the total hospital costs by CVDs. This methodology of cost of illness associated with salt consumption can be adapted to estimate the burden of other dietary risk factors and support prevention and control policies in Brazil and in other countries.

The social determinants of health of the Urak Lawoi' of southern Thailand

BACKGROUND

Traditionally, most Western models of health viewed sickness and disease as a product of individual factors such as personal behaviors and genetic predisposition; consequently, healthcare interventions were largely focused on fixing the individual, with little attention placed on contributing external factors. The WHO's "Social Determinants of Health" (SDH) framework, however, takes a broader ecological perspective that suggests that interventions must occur at multiple levels in order for good health to be achieved on an equitable basis. This model views health as a function of many circumstantial and environmental factors that are continuously and simultaneously interacting across multiple domains. These factors include structural mechanisms, such as laws and policies; socio-economic conditions, such as education and occupation; and intermediary circumstances, such as living and working conditions. Utilizing the SDH framework as a guide, this qualitative study sought to identify which specific determinants are most significant and present the greatest risk to the health and well-being of the Urak Lawoi' (UL), a "sea nomad" group indigenous to southern Thailand.

METHODS

Interviews, household surveys, and focus group discussions were utilized to gather primary data from 71 subjects in three different UL communities in southern Thailand. In addition, a comprehensive literature review of relevant international mechanisms, national laws, and national policies was conducted. All data collected was analyzed and coded utilizing HyperRESEARCH.

RESULTS

In all three communities, education and livelihoods were found to be the most critical determinants. Additionally, land grabbing and living conditions were identified as dire issues on Ko Lipe. The law and policy review revealed several deviations between international mechanisms and national laws and policies in both enshrinement and enforcement, with the Royal Thai Government (RTG) often overlooking the interests of the UL when formulating laws and policies.

CONCLUSIONS

The above-mentioned determinants, along other structural and intermediary determinants, are synergizing, thereby placing the UL at increased risk of poorer health and health outcomes compared to other Thais living in the same vicinities. To rectify this, the RTG must reform national laws and policies that harm the UL, and civil society must hold them accountable. Several recommendations are offered to achieve a better future for the Urak Lawoi'.