Compliance or non-compliance of hypertensive adults to hypertension management at three primary healthcare day clinics in Tshwane

Medication adherence and blood pressure control in treated hypertensive patients: first follow-up findings from the PREDIcT-HTN study in Northern Bangladesh

INTRODUCTION

Adherence to antihypertensive medication is crucial to control blood pressure (BP) and hypertension management outcomes. In Bangladesh, as in many other countries, poor adherence to medication represents a challenge to effective hypertension management. This study aims to investigate the prevalence and relationship between medication adherence and BP management among hypertensive patients in Bangladesh.

METHODS

The PREDIcT-HTN study in Northern Bangladesh aims to evaluate major adverse clinical events in treated hypertensive patients. The study involves 2643 hypertensive patients from a medical center, with data collected through baseline information and yearly follow-ups until 2025. The first follow-up visit was conducted between January and March 2021. Following the 2020 ISH-global hypertension guideline, patients were classified as having controlled BP, grade-I, or grade-II uncontrolled BP. Patients were divided into three groups (good, moderate, and poor) based on their 9-item Hill-Bone medication adherence scale. A multinomial regression analysis was conducted to identify the association between medication adherence and BP control after adjusting potential confounders.

RESULTS

Analysis of 2276 hypertensive patients (mean age 51.31 ± 11.58 years) revealed that 36.1% had grade-I and 24.2% had grade-II uncontrolled hypertension. Most patients (78%) displayed moderate adherence, and 15% showed poor medication adherence. Certain patient subgroups had higher rates of poor adherence: females (17.1%) compared to males (12.2%), rural residents (22.4%) compared to city-dwellers (12.2%), and newly diagnosed patients (17.2%) compared to those diagnosed 2-5 years earlier (12.6%). Multivariable analysis found a strong association between medication adherence and BP control. Compared to poor adherence, moderate adherence (relative risk ratio (RRR):0.50, 95%CI:0.36-0.68) and good adherence (RRR:0.56, 95%CI:0.35-0.91) were associated with better control. Increasing age, rural living, and uncontrolled hypertension were also linked. Comorbidities worsened BP control, and managing multiple medications contributed to poor adherence and grade-II hypertension in patients.

CONCLUSION

The high prevalence of uncontrolled hypertension in Bangladesh underscores the need for improved treatment strategies. Addressing medication adherence is essential for better BP control, with particular attention needed for women, rural residents, and newly diagnosed individuals. A comprehensive approach is warranted, including strategies to enhance adherence, early diagnosis, personalized treatment, and simplified medication regimens. These efforts align with the UN's 2030 SDGs, emphasizing targeted interventions for equitable healthcare access and outcomes.

Exploring Myocardial Infarction Knowledge, Attitudes, and Practice Among Mogadishu's Somali Residents

Introduction

Myocardial infarction and cardiovascular disease are significant global health issues, particularly in Somalia. The Somali population faces challenges due to armed conflict, limited education, and underdeveloped healthcare infrastructure. Cardiovascular risk factors like diabetes, hypertension, and obesity are prevalent, and Somali people face increased susceptibility.

Methods

This study examined Somalia residents' perceptions, attitudes, and behaviors towards myocardial infarction using a cross-sectional paper-based questionnaire. The sample consisted of 313 urban residents in Mogadishu, aged 20 and above. The questionnaire was written in Somali and was designed for the demographic. Knowledge, attitude, and practice scores were categorized into two groups, with associations between knowledge, attitude, and practice with sociodemographic and health characteristics assessed using Logistic Regression.

Results

This study analyzed data from A random sample of participants who arrived at the hospital for various reasons regarding their perceptions, attitudes, and responses towards myocardial infarction. The mean age was 42 ±19 years, with 54% being male and 46% female. Hypertension was the most common comorbidity, followed by dyslipidemia and diabetes. Over half of the respondents had no formal education, and only 3.8% had a smoking history. About 5.7% had a previous history of myocardial infarction. The mean knowledge score was 11.07 ± 0.697, with 53.35% of respondents not knowing enough about myocardial infarction. The majority of the patients showed a favorable attitude, but only a slight majority could recognize symptoms of myocardial infarction. The majority of the patients had inadequate practice and behavior, with 53.6% not practicing regularly or engaging in sports.

Conclusion

The research highlights gaps in Mogadishu's Somali community's knowledge and practices regarding myocardial infarction. It emphasizes the need for health education, primary care, and community involvement to improve cardiovascular health awareness and reduce MI incidence.

A Systematic Review of the Hill-Bone Compliance to Blood Pressure Therapy Scale

Background

Poor medication adherence hampers hypertension control and increases the risk of adverse health outcomes. Medication adherence can be measured with direct and indirect methods. The Hill-Bone Compliance to High Blood Pressure Therapy (HBCHBPT) Scale, one of the most popular adherence measures, indirectly assesses adherence to hypertension therapy in three behavioral domains: appointment keeping, diet and medication adherence.

Aim

To synthesize evidence on the use of the HBCHBPT Scale, including psychometric properties, utility in diverse patient populations, and directions for future clinical use and research.

Methods

We searched electronic databases, specifically CINAHL, PubMed, PsychInfo, Embase, and Web of Science. We included original studies that used the HBCHBPT Scale or its subscales to measure a health outcome, or methodological studies involving translations and validations of the scale. We extracted and synthesized data following the Preferred Reporting Items for Systematic Reviews and Meta-analysis (PRISMA) guidelines.

Results

Fifty studies were included in this review, 44 on hypertension, two on diabetes, and others on other chronic conditions. The scale was successfully translated into numerous languages and used in descriptive and intervention studies. The scale demonstrated sound psychometric properties (Cronbach's α coefficient 0.75) and sensitivity to capture intervention effects when used to evaluate the effectiveness of high blood pressure adherence interventions. The medication-taking subscale of HBCHBPT performs best and is widely used in diverse contexts to assess medication adherence for chronic conditions.

Conclusion

The HBCHBPT Scale has high versatility globally and has been used in various settings by various healthcare worker cadres and researchers. The scale has several strengths, including high adherence phenotyping capabilities, contributing to the paradigm shift toward personalized health care.

Factors influencing treatment adherence in hypertension and HIV management in South Africa: A comparative literature review

BACKGROUND

Hypertension (HTN) is the most significant risk factor for cardiovascular disease (CVD) in South Africa (SA), with one in three people over the age of 25 suffering from HTN. Whilst human immunodeficiency virus and acquired immunodeficiency syndrome (HIV/AIDS) are the leading causes of death in South Africa, CVD is in the top 10 causes of death, demonstrating the importance of detecting and controlling blood pressure early on. This study aimed to review adherence factors to antihypertensive medication and antiretroviral therapy (ART) and evaluate the resulting factors influencing adherence discrepancies within the South African population.

METHODS

A comprehensive literature review was carried out. PubMed, ScienceDirect, Cochrane and Embase were searched for English publications between 2000 and 2021.

RESULTS

A total of 50 articles covering quantitative and qualitative studies were included. Many studies identified poor adherence levels to antihypertensive treatment, reaching a substandard adherence rate of 41.9%, whilst most studies on the HIV-positive population reported good levels of adherence, with adherence rates of more than 90%. Being of the male gender, advanced age, low socioeconomic status and a low level of education were associated with unsatisfactory adherence rates in both groups. Within the HIV group, more participants had better knowledge concerning the extent of their disease and its required treatments.

CONCLUSION

The results present substandard adherence levels to antihypertensives compared with antiretroviral (ARV) adherence, despite the influence of more non-adherence factors in the HIV group. The authors recommend better adherence counselling for patients with HTN during every clinic visit, regular healthcare worker training and the implementation of ART adherence programmes in patients with hypertension.

Blood pressure control in hypertensive patients attending a rural community health centre in Gauteng Province, South Africa: A cross-sectional study

BACKGROUND

Hypertension is a major cause of morbidity and mortality and its control has important clinical and socio-economic benefits to the family and community. Unfortunately, the extent of blood pressure (BP) control and its potential predictors in hypertensive patients in many rural communities in low-resource settings are largely unknown. This study assessed the extent of uncontrolled BP and its predictors amongst hypertensive patients accessing primary health care in a rural community in South Africa.

METHODS

This cross-sectional study included 422 randomly selected hypertensive patients. Demographic and clinical data were collected using structured face-to-face questionnaire supplemented by respondents' clinical records.

RESULTS

Obesity plus overweight (n = 286, 67.8%) and diabetes (n = 228, 54.0%) were the most common comorbidities. Treatment adherence was achieved in only 36.3% and BP was controlled to target in 50.2% of the respondents. Significant predictors of uncontrolled BP were poor treatment adherence (odds ratio [OR] = 15.88, 95% confidence interval [CI] = 8.96, 28.14, p  0.001), obesity compared with normal weight and overweight (OR = 3.75, 95% CI = 2.17, 6.46, p  0.001) and being a diabetic (OR = 2.83, 95% CI = 1.74, 4.61, p  0.001).

CONCLUSION

Poor adherence to treatment was the major predictor of uncontrolled BP. The increase in uncontrolled BP in the presence of diabetes and/or obesity as risk predictors, indicates the need for appropriate behaviour change/interventions and management of these conditions in line with the health belief model (HBM). We also propose the use of Community-Based Physical and Electronic Reminding and Tracking System (CB-PERTS) to address poor treatment adherence.

Treatment adherence among patients with hypertension: findings from a cross-sectional study

Background

Hypertension is a major risk factor for cardiovascular disease, which is the leading cause of mortality globally. Patient’s adherence to treatment is a cornerstone factor in controlling hypertension and its complications. This study assesses hypertension patients’ adherence to treatment and its associated factors.

Methods

This cross-sectional study conducted in Riyadh, Saudi Arabia. The study targeted outpatients aged ≥18 years who were diagnosed with hypertension. Participants were recruited using a systemic sampling technique. The two main measurements were assessing adherence rate of antihypertensive medications using Morisky scale and identifying predictors of poor medication adherence among hypertensive patients including socio-economic and demographic data, health status, clinic visits, medication side effects, medications availability, and knowledge. Descriptive and logistic regression analyses were performed to assess factors associated with poor adherence.

Results

A total of 306 hypertensive outpatients participated in this study. 42.2% of participants were adherent to antihypertensive medications. Almost half of participants (49%) who reported having no comorbidities were adherent to antihypertensive medications compared to participants with one or more than one comorbidities 41, 39% respectively. The presence of comorbid conditions and being on multiple medications were significantly associated with medication adherence (P-values, respectively, < 0.004, < 0.009). Patients with good knowledge about the disease and its complications were seven times more likely to have good adherence to medication (P <  0.001).

Conclusions

Non-adherence to medications is prevalent among a proportion of hypertensive patients which urges continuous monitoring to medication adherence with special attention to at risks groups of patients. Patients with comorbidities and on multiple medications were at high risk of medication non-adherence. Patients’ knowledge on the disease was one of the main associated factors with non-adherence.

Self-reported adherence to therapeutic regimens among patients with hypertension

OBJECTIVES

To assess Jordanian hypertensive patients' adherence rate to hypertension therapeutic regimen (HTR) and to identify the strongest predictors of adherence rate among such patients.

DESIGN AND SAMPLE

A descriptive comparison design and convenience sampling were used. The sample comprised 192 participants who came to their regular appointments in a public healthcare center.

MEASUREMENT

The Hill-Bone Compliance to High Blood Pressure Therapy Scale and the Hypertension Knowledge-Level Scale were used to assess adherence to HTR and knowledge of hypertension, respectively.

RESULTS

The mean total score for adherence to HTR was 87.3, and 82.8% of participants reported good adherence overall. Adherence scores were significantly higher among women, less educated, unemployed participants, those with comorbidities, those with a negative family history of hypertension, and those who visited their physicians regularly. To identify the most significant predictors of adherence to HTR, multiple linear regression analysis was performed. Results indicated that good adherence to HTR was predicted by greater knowledge about hypertension and regularly visiting a physician.

CONCLUSIONS

Adherence to taking antihypertensive medications was good overall among the study participants; these participants, however, were less interested in adherence to reduced sodium intake and keeping up with medical appointments. Hypertensive patients appear to follow instructions related to pharmacological management and are less likely to comply with other elements of HTR.

Assessing Adherence to Antihypertensive Therapy in Primary Health Care in Namibia: Findings and Implications

INTRODUCTION

Namibia has the highest burden and incidence of hypertension in sub-Sahara Africa. Though non-adherence to antihypertensive therapy is an important cardiovascular risk factor, little is known about potential ways to improve adherence in Namibia following universal access. The objective of this study is to validate the Hill-Bone compliance scale and determine the level and predictors of adherence to antihypertensive treatment in primary health care settings in sub-urban townships of Windhoek, Namibia.

METHODS

Reliability was determined by Cronbach's alpha. Principal component analysis (PCA) was used to assess construct validity.

RESULTS

The PCA was consistent with the three constructs for 12 items, explaining 24.1, 16.7 and 10.8% of the variance. Cronbach's alpha was 0.695. None of the 120 patients had perfect adherence to antihypertensive therapy, and less than half had acceptable levels of adherence (≥ 80%). The mean adherence level was 76.7 ± 8.1%. Three quarters of patients ever missed their scheduled clinic appointment. Having a family support system (OR = 5.4, 95% CI 1.687-27.6, p = 0.045) and attendance of follow-up visits (OR = 3.1, 95% CI 1.1-8.7, p = 0.03) were significant predictors of adherence. Having HIV/AIDs did not lower adherence.

CONCLUSIONS

The modified Namibian version of the Hill-Bone scale is reliable and valid for assessing adherence to antihypertensives in Namibia. There is sub-optimal adherence to antihypertensive therapy among primary health cares in Namibia. This needs standardized systems to strengthen adherence monitoring as well as investigation of other factors including transport to take full advantage of universal access.