Family member-based supervision of patients with hypertension: a cluster randomized trial in rural China

The Importance of Social Support in the Management of Hypertension in Brazil

BACKGROUND

The prevalence of hypertension (HTN) is high in Brazil, and control rates are low. Little is known about the factors that contribute to HTN control from a family-based perspective.

OBJECTIVES

Guided by the Family Management Style Framework, specific aims were to (1) describe the prevalence of adequate blood pressure (BP) control in individuals cared for the Family Health Strategy, (2) identify facilitators and barriers to HTN management, and (3) identify individual contextual sociocultural influences (sociocultural context and social and Family Health Strategy support), definition of the situation, and management behaviors that help or interfere with individual functioning (BP control in the individual with HTN).

METHODS

This descriptive, cross-sectional study included 213 individuals with HTN randomly selected from 3 Family Health Strategy units from July 2016 until July 2017.

RESULTS

Most of the individuals were female (n = 139, 65.3%), retired (n = 129, 60.5%), and White (n = 129, 60.2%) and had less than a high school education (n = 123, 57.6%). Family income (n = 166, 77.8%) was less than 5500 reals (US $1117/month). Mean (SD) systolic BP was 137.1 (±24.1) mm Hg, and mean (SD) diastolic BP was 83.8 (±18.6) mm Hg, with 47.9% (n = 102) having uncontrolled BP. In the multivariate logistic model, only high levels of perceived social support were significantly associated (odds ratio, 3.29; 95% confidence interval, 1.44-7.5; P = .005) with controlled BP.

CONCLUSIONS

Social support is strongly associated with BP control. Optimizing support may play an important role in BP control and preventing HTN-related complications.

Association between physical activity and immunosuppressive medication adherence among renal transplant recipients: a case-control study

BACKGROUND

Behavioural interventions are closely associated with immunosuppressive medication (IM) adherence. We aimed to explore the relationship between physical activity and IM adherence among renal transplant patients (RTPs) to determine potential interventions to improve IM adherence.

DESIGN

A case-control study.

SETTING

Single-centre study in Changsha, China.

PARTICIPANTS

The study population included 624 RTPs who were adherent to IM and 417 RTPs who were non-adherent to IM.

MAIN OUTCOME MEASURES

Sociodemographic characteristics of RTPs, IM adherence and the association between physical activity patterns or frequency and IM adherence.

RESULTS

The proportion of RTPs who were non-adherent to IM was 40.06%. Compared with RTPs non-adherent to IM, those who were adherent were older, more likely to be married, were evaluated closer to initial time of transplant, had shorter pretransplant waiting times and engaged in more physical activity. Multivariate logistic regression analysis showed that, in the pretransplant stage, only high-frequency aerobic physical activity was significantly associated with IM adherence. However, in the post-transplant stage, patients engaging in low-frequency aerobic physical activity, high-frequency resistance physical activity or high-frequency aerobic physical activity had 2.01, 2.96 and 2.67 times greater odds of being adherent to IM, respectively, compared with patients with no physical activity. RTPs without physical activity in the pretransplant stage were more likely to be adherent to IM if they engaged in post-transplant physical activity. RTPs engaging in low-frequency physical activity in the pretransplant stage may have better IM adherence if they engaged in post-transplant physical activity. RTPs engaging in high-frequency post-transplant physical activity were significantly associated with a greater likelihood of being adherent to IM compared with RTPs engaging in low-frequency post-transplant physical activity.

CONCLUSION

Our study revealed that physical activity, especially in the post-transplant stage, is closely associated with IM adherence and presents a potential intervention for improving IM adherence by RTPs.

Examining determinants of control of metabolic syndrome among older adults with NCDs receiving service at NCD Plus clinics: multilevel analysis

BACKGROUND

Metabolic syndrome (MetS) in older adults with hypertension, diabetes, and hyperlipidemia increases the risks of cardiovascular diseases by 2.5 times and type 2 diabetes by five times. This study aimed to explain the multilevel relationships between health service system factors and individual-level factors influencing the control of MetS among older adults with NCDs receiving health care services at the NCD Plus clinics of hospitals in 1 year.

METHODS

This cross-sectional analytical study employed a systematic sampling method to have two groups of samples from 4 regions of Thailand: (1) 600 older adults having at least one diagnosis of NCDs receiving services at NCD Plus clinics and (2) 12 nurses in charge of the NCD Plus clinics at the hospitals providing services to these patient samples. Data were analyzed using multilevel logistic regression analysis.

RESULTS

24% of older adults with NCDs can control MetS within one year. The MetS escalation from the initial assessment to 1-year follow-up varied according to the level of the hospitals. The transition from MetS to non-MetS status was rare in older adults with NCDs. Among health service system factors, complete screening for MetS influenced 1-year MetS control (95% CI [1.06, 2.92]). Older adults who were female and who had polypharmacy had a 66% (95% CI [0.22, 0.53]) and a 54% (95% CI [0.29 - 0.71]) reduction chance in MetS control. Older adults, who were ≥ 80 years old, labor-employed, healthy dietary patterns, and medication adherence increased chances of controlling MetS by 2.38 times (95% CI [1.12, 5.05]), 2.14 times (95% CI [1.03, 4.42]), 1.61 times (95% CI [1.06-2.46]), and 3.18 times (95% CI [1.51, 6.70]), respectively.

CONCLUSIONS

NCDs Plus clinics that provide complete screening for MetS significantly enhance their effectiveness in reducing the proportion of older adults with MetS. In addition, the service should pay attention to older adults who are female, are retired, and take multiple medications to achieve MetS control better. The insights gained from such an analysis could be instrumental in pinpointing the resources necessary to bolster the efficacy of NCD Plus clinics.

Role of Health Care Professionals in the Success of Blood Pressure Control Interventions in Patients With Hypertension: A Meta-Analysis

BACKGROUND

Globally, only 13.8% of patients with hypertension have their blood pressure (BP) controlled. Trials testing interventions to overcome barriers to BP control have produced mixed results. Type of health care professional delivering the intervention may play an important role in intervention success. The goal of this meta-analysis is to determine which health care professionals are most effective at delivering BP reduction interventions.

METHODS

We searched Medline and Embase (until December 2023) for randomized controlled trials of interventions targeting barriers to hypertension control reporting who led intervention delivery. One hundred articles worldwide with 116 comparisons and 90 474 participants with hypertension were included. Trials were grouped by health care professional, and the effects of the intervention on systolic and diastolic BP were combined using random effects models and generalized estimating equations.

RESULTS

Pharmacist-led interventions , community health worker-led interventions, and health educator-led interventions resulted in the greatest systolic BP reductions of -7.3 (95% CI, -9.1 to -5.6), -7.1 (95% CI, -10.8 to -3.4), and -5.2 (95% CI, -7.8 to -2.6) mm Hg, respectively. Interventions led by multiple health care professionals, nurses, and physicians also resulted in significant systolic BP reductions of -4.2 (95% CI, -6.1 to -2.4), -3.0 (95% CI, -4.2 to -1.9), and -2.4 (95% CI, -3.4 to -1.5) mm Hg, respectively. Similarly, the greatest diastolic BP reductions were -3.9 (95% CI, -5.2 to -2.5) mm Hg for pharmacist-led and -3.7 (95% CI, -6.6 to -0.8) mm Hg for community health worker-led interventions. In pairwise comparisons, pharmacist were significantly more effective than multiple health care professionals, nurses, and physicians at delivering interventions.

CONCLUSIONS

Pharmacists and community health workers are most effective at leading BP intervention implementation and should be prioritized in future hypertension control efforts.

Relationship Between Social Support and Clinical Outcomes: An Evaluation of Participant-Nominated Treatment Supporters in the HOPE 4 Intervention

BACKGROUND

The HOPE 4 trial (Heart Outcomes Prevention and Evaluation 4) investigated the effectiveness of a comprehensive, collaborative model of care, implemented in Colombia and Malaysia, which aimed to reduce cardiovascular disease risk in individuals with hypertension. One component of this intervention was the nomination of a treatment supporter, where participants could select a family member or friend to assist them with their care. The purpose of this study was to investigate the impact of these individuals on participant outcomes, as well as the relationship dynamics between participants and their treatment supporter.

METHODS

Participants in the HOPE 4 intervention group with baseline and 12 months of follow-up were included for analysis. They were divided into Every Visit (n=339) and

RESULTS

Groups were majority female (53% versus 62%) with a mean age of 63 and 66 years. Country of origin differed between groups (22% versus 86%; Colombia). A 15.5% ([95% CI, 6.2%-24.8%] P=0.004) greater increase in statin medication use was reported in the Every Visit group at 12 months compared with the

CONCLUSIONS

Long-term support from a nominated treatment supporter was associated with improved adherence, risk factor management, and medication use among individuals with hypertension.

REGISTRATION

URL: https://www.clinicaltrials.gov; Unique identifier: NCT01826019.

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Key Words

• cardiovascular diseases
• hypertension
• medical adherence
• risk factors
• social support

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MESH Headings

• Humans
• Female
• Middle Aged
• Aged
• Hypertension/diagnosis
• Hypertension/drug therapy
• Hypertension/epidemiology
• Blood Pressure
• Medication Adherence
• Risk Factors
• Social Support

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Affiliation(s)

Anastasia Drakos Faculty of Medicine, University of Ottawa, ON, Canada (A.D.) Population Health Research Institute, McMaster University and Hamilton Health Sciences, Hamilton, ON, Canada (A.D., T.M., S.I., S.Y., J.D.S.)
Tara McCready Population Health Research Institute, McMaster University and Hamilton Health Sciences, Hamilton, ON, Canada (A.D., T.M., S.I., S.Y., J.D.S.)
Patricio Lopez-Jaramillo Research Institute, Fundación Oftalmológica de Santander, Floridablanca, Colombia (P.L.-J.) Masira Institute, Medical School, Universidad de Santander, Bucaramanga, Colombia (P.L.-J.)
Shofiqul Islam Population Health Research Institute, McMaster University and Hamilton Health Sciences, Hamilton, ON, Canada (A.D., T.M., S.I., S.Y., J.D.S.)
Martin McKee Department of Health Services Research and Policy, London School of Hygiene and Tropical Medicine, London, United Kingdom (M.M.)
Salim Yusuf Population Health Research Institute, McMaster University and Hamilton Health Sciences, Hamilton, ON, Canada (A.D., T.M., S.I., S.Y., J.D.S.) Department of Health Research Methods, Evidence and Impact, McMaster University Faculty of Health Sciences, Hamilton, ON, Canada (S.Y.)
J D Schwalm Population Health Research Institute, McMaster University and Hamilton Health Sciences, Hamilton, ON, Canada (A.D., T.M., S.I., S.Y., J.D.S.)

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Medication Adherence among Primary Care Patients with Common Mental Disorders and Chronic Medical Conditions in Rural India

Background

Only a few studies have explored the relationship between psychosocial factors and medication adherence in Indian patients with noncommunicable diseases (NCDs). We aimed to examine the association of psychosocial variables with medication adherence in people with NCDs and comorbid common mental disorders (CMDs) from primary care in rural southern India.

Methods

We performed a secondary analysis using baseline data from a randomized controlled trial in 49 primary care health centers in rural southern India (HOPE study). Participants were adults (≥30 years) with NCDs that included hypertension, diabetes, and/or ischemic heart disease, and comorbid depression or anxiety disorders. Medication adherence was assessed by asking participants if they had missed any prescribed NCD medication in the past month. Data were collected between May 2015 and November 2018. The association between psychosocial and demographic variables and medication nonadherence were assessed via logistic regression analyses.

Results

Of the 2486 participants enrolled, almost one-fifth (18.06%) reported missing medication. Male sex (OR = 1.74, 95% CI 1.37-2.22) and higher internalized mental illness stigma (OR = 1.46, 95% CI 1.07-2.00) were associated with higher odds of missing medication. Older age (OR = 0.40, 95% CI 0.26-0.60, for participants aged 64-75 years vs 30-44 years), reporting more social support (OR = 0.65, 95% CI 0.49-0.86), and higher satisfaction with health (OR = 0.74, 95% CI 0.61-0.89) were associated with lower odds of missing medication.

Conclusions

Greater internalized mental illness stigma and less social support are significantly associated with lower rates of medication adherence in patients with NCDs and comorbid CMDs in rural India.

Interventions for family support in cardiometabolic disease: An integrative review

AIM

To evaluate how family support affects cardiometabolic outcomes.

DESIGN

Integrative literature review.

SOURCES

PubMed, CINAHL, EMBASE and Scopus were searched for peer-reviewed primary research published between 2016 and 2021.

METHODS

Independent screening of 1661 citations resulted in 17 international publications involving 16 experimental studies selected. Data were analysed using a constant comparison method.

RESULTS

While the interventions varied regarding target, duration, setting and the profession of the interventionists, all studies demonstrated some level of the effectiveness for family involvement and support in the management of cardiometabolic diseases. The studies found improvement in health behaviours and clinical/psychosocial outcomes for the patients and the family members.

CONCLUSION

Based on the findings from this review, we recommend utilizing the following for future family interventions in the management of diabetes and/or hypertension: (1) broader definitions of family and structures; (2) a community participatory/action-research method with embedded healthcare workers; (3) an interdisciplinary approach with attention to goal-setting; (4) multimodal interventions including technology; (5) culturally tailoring interventions for relevance as needed; and (6) clear direction regarding support role and tools.

Effects of a family dyadic partnership program for people with hypertension in a rural community: A pilot randomised controlled trial

OBJECTIVE

To evaluate the feasibility, acceptability and preliminary effectiveness of a theory-based patient-family carer partnership intervention for people with hypertension in a Chinese rural community.

DESIGN

A pilot randomised controlled trial using pretest and post-test design.

SETTING

Rural China PARTICIPANTS: Forty-four hypertensive patients and their family carers (family dyads) were randomly recruited from a village clinic located in China between November 2019 and January 2020.

INTERVENTIONS

Participants were randomised to either an intervention group receiving a five-session patient-family carer partnership intervention over 10 weeks or a control group receiving usual care.

MAIN OUTCOME MEASURES

The feasibility and acceptability of patient-family carer partnership intervention and the changes in patients' systolic blood pressure, diastolic blood pressure and percentage of normal controlled blood pressure.

RESULTS

The patient-family carer partnership intervention was a feasible and acceptable program with high recruitment (81.5%) and completion rates (95.5%) and positive feedback from participants. Greater improvement in the percentage of normal controlled blood pressure was identified in the intervention group tested by the χ² tests, with P = .03. Two-way ANOVA results indicated its interaction (Group × Time) effects on patients' systolic blood pressure (P < .001), diastolic blood pressure (P < .001), dyadic partnership quality (P = .002), self-care (P < .001), self-efficacy (P = .02), antihypertensive drug treatment rate (P = .02), prescription adjustment (P = .03), perceived anxiety (P < .001) and health-related quality of life (EuroQol five-dimensional five-level: P = .02; EuroQol visual analogue scale: P < .001); family carers' dyadic partnership quality (P = .002), perceived depression (P = .04) and health-related quality of life (P = .02) were significant.

CONCLUSION

Our findings support the feasibility and acceptability of the patient-family carer partnership intervention and indicate benefits in improving patients' blood pressure control, dyadic relationship and psychological well-being of family dyads in rural area. Further research to test the longer-term effect in a large-sized population is recommended.

The association between social support and medication adherence in patients with hypertension: A systematic review

Background:

Medication adherence is a primary determinant of treatment success in hypertensive patients. One of the challenges for healthcare providers that has received little attention is the impact of patients’ social supports on medication adherence.

Objective:

This review evaluates the impact of patients’ social supports on medication adherence in hypertensive patients.

Methods:

A systematic review methodology was used. Pubmed, CINAHL, Embase, and PsycINFO databases were searched systematically for relevant articles. The outcome measure in the studies was medication adherence in hypertension.

Results:

From 1155 articles, 238 were retained for further assessment, and finally, 14 met the inclusion criteria. Statistically significant positive associations between medication adherence and social support were found in nine studies (p<0.05).

Conclusions:

This review evaluated the impact of social support on medication adherence and highlighted gaps in the literature regarding the impact of social support on adherence. Family members or peer support may promote better adherence in some patient groups. This review suggests that healthcare providers may need to consider whether patients have appropriate social supports in place which will assist them adhering to and benefiting from treatment recommendations.

Identification of Immunosuppressive Medication Nonadherence Factors Through a Combined Theory Model in Renal Transplant Recipients: 6-12

Background: Immunosuppressive medication (IM) nonadherence is associated with poor transplant outcomes. Therefore, it is of great importance to identify predictive factors with IM nonadherence. We aimed to improve the predicted capacity of the theory of planned behavior (TPB) by adding health belief model's (HBM) variables in renal transplant patients (RTPs). Methods: This cross-sectional study distributed questionnaires to patients who had undergone renal transplant and follow-up regularly in the transplant center of Third Xiangya Hospital in China. The self-developed questionnaire collected data in three aspects: general data questionnaire, TPB, HBM-specific questionnaire, and Basel Assessment of Adherence to Immunosuppressive Medications scale. Results: A total of 1,357 of 1,480 patients completed the survey, with a participation rate of 91.69% and IM nonadherence rate of 33.53%. The marital status, household income, preoperative drinking history, the time after transplantation, and religion showed independent predictive factors with IM nonadherence (p < 0.05). Strikingly, adding HBM variables to the TPB theory model significantly increased its prediction ability to IM nonadherence (52%). Also, HBM manifested the highest coefficient of effect (-0.620). Particularly, perceived barriers and perceived seriousness, the variables of the HBM model, played a vital influence on medication nonadherence (-0.284 and 0.256). Conclusion: Our study here reveals the first investigation of the combined effects of the TPB and HBM model on IM nonadherence in Chinese RTPs, which could significantly improve the predictive ability of any single model. Meanwhile, future interventions should be conducted to both increase perceived seriousness and reduce perceived barriers for taking IM, which will effectively decrease IM nonadherence rates and improve transplant outcomes.

Challenges experienced by patients with hypertension in Ghana: A qualitative inquiry

BACKGROUND

Hypertension (HPT) is an essential public health problem affecting both lower and middle-income countries disproportionately. Evidence suggests that HPT is the leading risk factor for cardiovascular diseases and chronic kidney disease. Yet, challenges faced by patients with HPT in Ghana are not sufficiently explored. This study, documents the challenges patients with HPT face in Ghana.

METHODS

We used an explorative descriptive qualitative design. Face-to-face in-depth interviews were conducted with 15 patients with HPT. Interviews were recorded and transcribed verbatim. A thematic content analysis procedure was followed to analyse the data.

RESULTS

Four main themes emerged from interviews; three of which pertained to dimensions of challenges and a fourth which pertained to coping strategies. These include: [1] impairment in physical activities and mobility constraints [2]. Psychological challenges such as suicidal ideations, sadness, fear, anxiety, and reduced sexual affection [3]. Socio-economic challenges identified include loss of friends and social network, difficulty in job demands, and financial burden, and [4] coping strategies such as health system support, social support, and religiosity were identified.

CONCLUSION

Patients with HPT experience an array of challenges. We suggest that health care facilities incorporate post HPT diagnosis counseling sessions for HPT patients in the study area. Also, the National Health Insurance Authority (NHIA) should re-examine their scope of services; thus, drugs, laboratory services, and electrocardiogram services to avoid the issue of co-payment. Collaboration between healthcare professionals and family relations of patients with HPT ought to also be strengthened to ensure optimal care.

Comparison of hypertensive outcomes after the implementation of self-management program for older adults with uncontrolled hypertension in Krabi, Thailand: a quasi-experimental study

Purpose

This study aims to examine the effects of a self-management program (SMP) on self-care behavior, blood pressure and quality of life among older adults with uncontrolled hypertension.

Design/methodology/approach

A quasi-experimental design with repeated measures was conducted in two primary care units in Krabi, Thailand. One hundred and fifty-six older adults with uncontrolled hypertension were selected based on the inclusion criteria and divided into experimental and control groups with 78 participants in each. The experimental group received the SMP, including the intervention related to the self-management process (from the 1st to 4th weeks) and a follow-up phase (from the 5th to 16th weeks). The control group received standard care. The outcomes were measured over time, including self-care behavior (baseline, 4th and 16th weeks), blood pressure (baseline, 4th, 8th, 12th and 16th weeks) and quality of life (baseline and 16th week).

Findings

The generalized estimating equations showed that the SMP, compared with the control group, statistically significantly improved self-care behavior (p < 0.001), decreased blood pressure (p < 0.001) and improved quality of life (p < 0.001) at the 16th week.

Originality/value

The SMP improved the self-care behavior, decreased blood pressure and improved the quality of life among older adults with uncontrolled hypertension. Registered nurses could administer this program for long-term benefits and help reduce the burden on primary care services.

Hypertension in Low- and Middle-Income Countries

In recent decades low- and middle-income countries (LMICs) have been witnessing a significant shift toward raised blood pressure; yet in LMICs, only 1 in 3 are aware of their hypertension status, and ≈8% have their blood pressure controlled. This rising burden widens the inequality gap, contributes to massive economic hardships of patients and carers, and increases costs to the health system, facing challenges such as low physician-to-patient ratios and lack of access to medicines. Established risk factors include unhealthy diet (high salt and low fruit and vegetable intake), physical inactivity, tobacco and alcohol use, and obesity. Emerging risk factors include pollution (air, water, noise, and light), urbanization, and a loss of green space. Risk factors that require further in-depth research are low birth weight and social and commercial determinants of health. Global actions include the HEARTS technical package and the push for universal health care. Promising research efforts highlight that successful interventions are feasible in LMICs. These include creation of health-promoting environments by introducing salt-reduction policies and sugar and alcohol tax; implementing cost-effective screening and simplified treatment protocols to mitigate treatment inertia; pooled procurement of low-cost single-pill combination therapy to improve adherence; increasing access to telehealth and mHealth (mobile health); and training health care staff, including community health workers, to strengthen team-based care. As the blood pressure trajectory continues creeping upward in LMICs, contextual research on effective, safe, and cost-effective interventions is urgent. New emergent risk factors require novel solutions. Lowering blood pressure in LMICs requires urgent global political and scientific priority and action.

Strategies to Improve Adherence to Anti-Hypertensive Medications: a Narrative Review

PURPOSE OF REVIEW

Medication adherence is critical for effective management of hypertension, yet half of patients with hypertension are non-adherent to medications. In this review, we describe and critically evaluate medication adherence interventions published in the past 3 years for patients with hypertension.

RECENT FINDINGS

We identified 1593 articles and 163 underwent full review, of which 42 studies met the inclusion criteria. Studies were classified into eight categories: simplification of medication regimen (e.g., fixed dose combination pills); electronic Health (eHealth) tools (e.g., text messaging reminders); behavioral counseling (e.g., motivational interviewing); healthcare system changes (e.g., patient-centered medical home); patient education; multicomponent chronic disease management program; home blood pressure monitoring; and financial incentives. Studies utilizing strategies to simplify medication regimens, eHealth tools, patient education, and behavioral counseling were most likely to report positive findings. Interventions targeting patient behavior were more likely to be associated with improvements in medication adherence compared to those targeting providers or the healthcare system. eHealth tools show promise for augmenting behavioral interventions. A major limitation of included trials was short study duration and use of self-report measures of medication adherence. Future research should explore how complex interventions that utilize a combination of evidence-based strategies and target multiple adherence behaviors (e.g., both day-to-day medication taking and long-term persistence) may be efficacious in improving medication adherence.

Process Evaluation of a Clustered Randomized Control Trial of a Comprehensive Intervention to Reduce the Risk of Cardiovascular Events in Primary Health Care in Rural China

Background: Cardiovascular disease (CVD) is a major public health challenge in China. This study aims to understand the processes of implementing a comprehensive intervention to reduce CVD events in areas of drug therapy, lifestyle changes, and adherence support in a clustered randomized controlled trial (cRCT). This trial consisted of 67 clusters spanning over 3 years in Zhejiang Province, China. Method: A qualitative process evaluation was nested within the cRCT conducted in 9 township hospitals with 27 healthcare providers, 18 semi-structured interviews, and 23 observational studies of clinical practices within the intervention arm. Results: Effective and repeated trainings using an interactive approach were crucial to improve the prescribing behaviour of family doctors and their patient communication skills. However, the awareness of patients remained limited, thus compromising their use of CVD preventive drugs and adoption of healthy lifestyles. Health system factors further constrained providers’ and patients’ responses to the intervention. Financial barrier was a major concern because of the low coverage of health insurance. Other barriers included limited doctor–patient trust and suboptimal staff motivation. Conclusion: Our study suggests the feasibility of implementing a comprehensive CVD risk reduction strategy in China’s rural primary care facilities. However, health system barriers need to be addressed to ensure the success and sustainability of the intervention.

Associations of mitochondrial DNA 3777-4679 region mutations with maternally inherited essential hypertensive subjects in China

Background

Nuclear genome or family mitochondrial screening system has become the hot focus of studies into essential hypertension. The role of mitochondrial DNA (mtDNA) in sporadic Chinese patients with hypertension has not been fully understood. The study was to evaluate the associations of mtDNA mutations with maternally inherited essential hypertensive subjects in China.

Methods

From June 2009 to June 2016, a total of 800 gender-matched Chinese patients with maternally inherited essential hypertension (MIEH) and control group were 1:1 enrolled in this case-control study. Genomic DNA was extracted from each person’s peripheral blood cells. The main mtDNA locations for MIEH were screened with oligodeoxynucleotides 3777-4679 bp, analyzed and compared with the updated consensus Cambridge Sequence. Pathogenic mtDNA mutations were identified from the mitochondrial map.

Results

MIEH subjects presented significantly higher values than those of control group in abdominal circumference (AC), waist circumference (WC), body mass index (BMI), fasting blood glucose (FBG), triglyceride (TG), low-density lipoprotein cholesterol (LDL) and renal function (P < 0.05). MIEH subjects carried more amino acid changes and coding sequence variants (P < 0.01) than control group. The allele frequencies of the eight single nucleotide polymorphisms (SNPs) were significantly different between the two groups, including m.3970 C > T, m.4048G > A, m.4071C > T, m.4086C > T, m. 4164A > G and m.4248 T > C in ND1 gene, and m.4386 T > C and m.4394C > T in tRNA^Gln gene(P < 0.001). Fifty-five homoplasmic or heteroplasmic mutations were detected in 5 genes: ND1, tRNA^Ile, tRNA^Met, tRNA^Gln and ND2 gene. The ND1 gene was the main mutation site, where the most mtDNA mutation was m.3970 C > T.

Conclusions

The mtDNA mutations were involved in the process of MIEH. We identified mitochondrial genetic characteristics in MIEH patients in China. The present research serves as a solid foundation for further detailed research on the association between MIEH and mitochondrial dysfunction, and their causal relationship in Chinese and other populations with a similar lifestyle.

A clinical trial on the effect of a multifaceted intervention on blood pressure control and medication adherence in patients with uncontrolled hypertension

BACKGROUND

Hypertension (HTN) is the key risk factor for cardiovascular diseases (CVDs). The purpose of this study was to determine the effect of a multifaceted intervention on blood pressure (BP) control and medication adherence (MA) among patients with uncontrolled HTN.

METHODS

A randomized controlled clinical trial study was conducted on 72 patients in the emergency ward who were selected through convenience sampling method. They were randomly divided into intervention and control groups. The studied multifaceted intervention includes motivational interviews and 90 minutes of training sessions, use of a drug reminder box, family support, and 4 phone call follow-ups. The8-Item Morisky Medication Adherence Scale (MMAS-8) was used before and after the intervention. BP was measured in both groups before and after the intervention and compared between them.

RESULTS

No significant difference existed between the two groups in terms of MA and systolic and diastolic BP before the study. The differences between the mean changes in post-intervention systolic (-25.75 ± 19.39 vs. -2.88 ± 11.92 mmHG; P < 0.001) and diastolic (-6.18 ± 8.87 vs. -1.06 ± 8.70 mmHg; P = 0.010) BP in the intervention and control groups were statistically significant. The mean changes in post-intervention MA in the intervention and control group was 2.91 ± 1.64 and -0.36 ± 1.15, respectively; this difference was statistically significant (P < 0.001).

CONCLUSION

The studied multifaceted intervention promoted MA and reduced systolic and diastolic BP. Thus, the use of this method as a supplementary treatment is recommended after patient discharge.

Beliefs of Immunosuppressive Medication Among Chinese Renal Transplant Recipients, as Assessed in a Cross-Sectional Study With the Basel Assessment of Adherence to Immunosuppressive Medications Scale

BACKGROUND

Adherence to immunosuppressive medication (IM) after renal transplantation is crucial to survival of patient and graft outcomes; whether beliefs about IM adherence and other sociodemographic factors affect IM adherence is debatable.

OBJECTIVE

This study aimed to examine the beliefs on IM and IM adherence in Chinese renal transplant recipients.

METHODS

Across-sectional survey was conducted. Self-developed IM beliefs questionnaire guided by health belief model was used to measure IM beliefs. The Basel Assessment of Adherence to Immunosuppressive Medications Scale was used to assess drug adherence.

RESULTS

The nonadherence rate to IM in 208 renal transplant recipients during outpatient follow-up was 44.2%. There were statistically significant associations between adherence and the marital status (P < .001). Perceived seriousness of not taking IM (P < .001) and perceived barriers of taking IM (P < .001) were significantly associated with IM adherence. After controlling other factors, married marital status, high levels of perceived seriousness of not taking IM, and lower levels of perceived barriers of taking IM (P = .007) were significantly associated with IM adherence.

CONCLUSION

Marital status and IM beliefs are closely association with IM adherence in Chinese renal transplant recipients.

Determinants of Uncontrolled Hypertension in Rural Communities in South Asia-Bangladesh, Pakistan, and Sri Lanka

BACKGROUND

Uncontrolled blood pressure (BP) is a leading risk factor for death and disability in South Asia. We aimed to determine the cross-country variation, and the factors associated with uncontrolled BP among adults treated for hypertension in rural South Asia.

METHODS

We enrolled 1,718 individuals aged ≥40 years treated for hypertension in a cross-sectional study from rural communities in Bangladesh, Pakistan, and Sri Lanka. Multivariable logistic regression model was used to determine the factors associated with uncontrolled BP (systolic BP ≥140 mmHg or diastolic BP ≥90 mmHg).

RESULTS

Among hypertensive individuals, 58.0% (95% confidence interval (CI) 55.7, 60.4) had uncontrolled BP: 52.8% (49.0, 56.6) in Bangladesh, 70.6% (65.7, 75.1) in Pakistan, and 56.5% (52.7, 60.1) in Sri Lanka. The odds (odds ratio (95% CI)) of uncontrolled BP were significantly higher in individuals with lower wealth index (1.17 (1.02, 1.35)); single vs. married (1.46 (1.10, 1.93)); higher log urine albumin-to-creatinine ratio (1.41 (1.24, 1.60)); lower estimated glomerular filtration rate (1.23 (1.01, 1.49)); low vs. high adherence to antihypertensive medication (1.50 (1.16, 1.94)); and Pakistan (2.91 (1.60, 5.28)) vs. Sri Lanka. However, the odds were lower in those with vs. without self-reported kidney disease (0.51 (0.28, 0.91)); and receiving vs. not receiving statins (0.62 (0.44, 0.87)).

CONCLUSIONS

The majority of individuals with treated hypertension have uncontrolled BP in rural Bangladesh, Pakistan, and Sri Lanka with significant disparities among and within countries. Urgent public health efforts are needed to improve access and adherence to antihypertensive medications in disadvantaged populations in rural South Asia.

Hypertension management for community-dwelling older people with diabetes in Nanchang, China: study protocol for a cluster randomized controlled trial

BACKGROUND

Although China has a large number of older people living with diabetes and hypertension, the primary care system is underdeveloped and so management of these conditions in community care settings is suboptimal. Studies have shown that the collaborative care model across care settings that address both pharmacology and nonpharmacology interventions can achieve hypertension control for older people with diabetes. Barriers to implementing and evaluating this model of care are widely recognized in low and middle-income countries including China. This study will therefore test the hypothesis that a hypertension management program built on collaboration between hospitals and community health service centers in China can improve blood pressure control in people aged 60 years and older with diabetes as compared to usual care.

METHODS

A cluster randomized controlled trial will randomly allocate 10 wards from four hospitals in Nanchang to either an intervention group (N = 5) or a usual care group (N = 5). At least 27 participants will be recruited from each ward and the estimated sample size will be 135 patients in each group. The intervention includes individualized self-care education prior to discharge and 6-month follow-up in community health service centers. Health professionals from both hospitals and community health service centers will be resourced to collaborate on the implementation of the postdischarge interventions that reinforce self-care. The primary outcome is systolic blood pressure at 6-month follow-up adjusted for baseline value. Secondary outcomes are self-care knowledge, treatment adherence, HbA1c and lipid levels, quality of life, the incidence of adverse events and the incidence of unplanned hospital readmission at 6-month follow-up adjusted for baseline value. A multilevel mixed-effect linear regression model will be used to compare the changes in health outcomes between the intervention and usual care groups.

DISCUSSION

This study will determine whether collaborative care among health professionals between hospitals and community health service centers will improve hypertension management for older people with diabetes in the study sites. The program, if effective, will have an immediate application to hypertension management in the healthcare system in China.

TRIAL REGISTRATION

Australia New Zealand Clinical Trials Registry, ACTRN12617001352392 . Retrospectively registered on 26 September 2017.

Evaluation of antihypertensive adherence and its determinants at primary healthcare facilities in rural South Africa

Aim: To evaluate adherence to antihypertensive treatment in rural South Africa and identify potential determinants given concerns with adherence and its impact in this priority disease area. Patients & methods: Face-to-face interviews with hypertensive patients and rating their adherence to treatment using defined categorized responses. Associations between adherence and patient characteristics assessed and sensitivity analyses performed. Results: 54.6% of patients were adherent to treatment. Controlled blood pressure (BP; odds ratios [OR] = 2.1; 95% CI: 1.1, 3.8; p = 0.019), comorbidity (OR = 2.0; 95% CI: 1.1, 3.6; p = 0.032) and smoking (OR = 0.3; 95% CI: 0.1, 0.8; p = 0.018) were associated with adherence. Conclusion: Adherence and BP control were suboptimal, only smoking was an independent risk factor for adherence. Adherent patients were twice as likely to have controlled BP, although results were sensitive to the definition of adherence. Initiatives are in place to improve adherence, which will be monitored.

Interventions to improve medication adherence among Chinese patients with hypertension: a systematic review and meta-analysis of randomized controlled trails

OBJECTIVE

A systematic review and meta-analysis of randomized controlled trials (RCTs) were performed to understand the effectiveness of medication adherence (MA) interventions among Chinese patients with hypertension.

METHODS

A literature search was conducted with three English databases (PubMed, Web of Science and Embase) and three Chinese databases (China National Knowledge Infrastructure, Wanfang and VIP Database for Chinese Technical Periodicals) for the period from 1970 to October 2017. Only both RCTs with a minimum of 10 participants in each intervention group and Chinese patients with hypertension as participants were included. A random-effects model was applied to calculate pooled effect sizes with 95% CI. Subgroup analysis was conducted to identify potential sources of heterogeneity from duration of intervention, type of intervener, methods of intervention and sites of intervention. Funnel plots and Egger's test were used to evaluate for publication bias.

KEY FINDINGS

A total of 48 studies met criteria for the meta-analysis, including 14 568 participants, testing 57 independent comparisons. Overall, the effect size revealed that interventions significantly improved MA (pooled relative risk = 1.59, 95% CI: 1.43 to 1.78; pooled Cohen's d = 1.42, 95% CI: 0.976 to 1.876). Interventions were found to significantly reduce blood pressure (BP) (systolic BP: Cohen's d = -0.85, 95% CI: -1.11 to -0.60 and diastolic BP: Cohen's d = -0.73, 95% CI: -1.00 to -0.46). Longer duration of intervention gave better effectiveness. Physician as interventionist, regular follow-up visits and interventions conducted at a hospital were associated with better effectiveness.

CONCLUSION

Adherence interventions improve MA and reduce uncontrolled BP among Chinese patients with hypertension. In the future, investigators should adopt a skill set to address the problem of poor MA.

Impact of perceived control on all-cause and cardiovascular disease mortality in three urban populations of Central and Eastern Europe: the HAPIEE study

Background

Inverse associations between perceived control and cardiovascular disease (CVD) have been reported in studies from Western Europe and the USA. To assess this relationship across different populations, we investigated the association between perceived control and all-cause and CVD mortality in three population-based cohorts of Eastern European countries.

Methods

We analysed data from a prospective cohort study in random population samples in Krakow (Poland), Novosibirsk (Russia) and six Czech towns. Baseline survey included structured questionnaire and objective examination in a clinic. Perceived control was assessed using an 11-item scale developed by the MacArthur Foundation Programme on Successful Midlife. Information on vital status was obtained from death registers. Effect of perceived control on mortality was assessed using Cox proportional hazards models.

Results

A total of 2377 deaths (1003 from CVD) occurred among 27 249 participants over a median 7-year follow-up. In the Czech and Polish cohorts, perceived control was inversely associated with mortality; the adjusted HRs for the lowest versus highest control quintiles were 1.71 (1.34 to 2.19) in men and 1.63 (1.14 to 2.35) in women for all-cause mortality and 2.31 (1.48 to 3.59) and 5.50 (2.14 to 14.13) for CVD deaths. There was no association between perceived control and mortality in Russia; the adjusted HRs for all-cause mortality were 1.03 (0.79 to 1.34) in men and 1.29 (0.82 to 2.02) in women.

Conclusions

Low perceived control was associated with increased risk of all-cause and CVD mortality in Czech and Polish cohorts but not in Russia. It is possible that this inconsistency may partly reflect a different sociocultural understanding of the concept of control in Russia.