Health care interventions to improve the quality of diabetes care in African Americans: a systematic review and meta-analysis

Outcomes of Cooking Matters for Diabetes: A 6-week Randomized, Controlled Cooking and Diabetes Self-Management Education Intervention

BACKGROUND

Diabetes self-management education and support is the cornerstone of diabetes care, yet only 1 in 2 adults with diabetes attain hemoglobin A1c (HbA1c) targets. Food insecurity makes diabetes management and HbA1c control more difficult.

OBJECTIVE

Our aim was to test whether a cooking intervention with food provision and diabetes self-management education and support improves HbA1c and diabetes management.

DESIGN

This was a waitlist-controlled, randomized trial.

PARTICIPANTS/SETTING

Participants were 48 adults with type 1 or type 2 diabetes.

INTERVENTION

Cooking Matters for Diabetes was adapted from Cooking Matters and the American Diabetes Association diabetes self-management education and support intervention into a 6-week program with weekly food provision (4 servings).

MAIN OUTCOME MEASURES

Surveys (ie, Summary of Diabetes Self-Care Activities; Medical Outcomes Study Short Form Health Survey, version 1; Diet History Questionnaire III; 10-item US Adult Food Security Survey Module; and Stanford Diabetes Self-Efficacy Scale) were administered and HbA1c was measured at baseline, post intervention, and 3-month follow-up.

STATISTICAL ANALYSIS

Mixed-effects linear regression models controlling for sex and study wave were used.

RESULTS

Mean (SD) age of participants was 57 (12) years; 65% identified as female, 52% identified as White, 40% identified as Black, and 19 (40%) were food insecure at baseline. Intervention participants improved Summary of Diabetes Self-Care Activities general diet score (0 to 7 scale) immediately post intervention (+1.51; P = .015) and 3 months post intervention (+1.23; P = .05), and improved Medical Outcomes Study Short Form Health Survey, version 1, mental component score (+6.7 points; P = .025) compared with controls. Healthy Eating Index 2015 total vegetable component score improved at 3 months (+0.917; P = .023) compared with controls. At baseline, food insecure participants had lower self-efficacy (5.6 vs 6.9 Stanford Diabetes Self-Efficacy Scale; P = .002) and higher HbA1c (+0.77; P = .025), and demonstrated greater improvements in both post intervention (+1.2 vs +0.4 Stanford Diabetes Self-Efficacy Scale score; P = .002, and -0.12 vs +0.39 HbA1c; P = .25) compared with food secure participants.

CONCLUSIONS

Cooking Matters for Diabetes may be an effective method of improving diet-related self-care and health-related quality of life, especially among food insecure patients, and should be tested in larger randomized controlled trials.

New Horizons-Addressing Healthcare Disparities in Endocrine Disease: Bias, Science, and Patient Care

Unacceptable healthcare disparities in endocrine disease have persisted for decades, and 2021 presents a difficult evolving environment. The COVID-19 pandemic has highlighted the gross structural inequities that drive health disparities, and antiracism demonstrations remind us that the struggle for human rights continues. Increased public awareness and discussion of disparities present an urgent opportunity to advance health equity. However, it is more complicated to change the behavior of individuals and reform systems because societies are polarized into different factions that increasingly believe, accept, and live different realities. To reduce health disparities, clinicians must (1) truly commit to advancing health equity and intentionally act to reduce health disparities; (2) create a culture of equity by looking inwards for personal bias and outwards for the systemic biases built into their everyday work processes; (3) implement practical individual, organizational, and community interventions that address the root causes of the disparities; and (4) consider their roles in addressing social determinants of health and influencing healthcare payment policy to advance health equity. To care for diverse populations in 2021, clinicians must have self-insight and true understanding of heterogeneous patients, knowledge of evidence-based interventions, ability to adapt messaging and approaches, and facility with systems change and advocacy. Advancing health equity requires both science and art; evidence-based roadmaps and stories that guide the journey to better outcomes, judgment that informs how to change the behavior of patients, providers, communities, organizations, and policymakers, and passion and a moral mission to serve humanity.

Effectiveness of an intensive community-based intervention for people with type 2 diabetes in Indonesia: A pilot study

AIMS

This pilot study aimed to assess the acceptability of an intensive community-based intervention, and to get a preliminary estimate of the effect size of the intervention for people with type 2 diabetes in Kupang, Indonesia.

METHODS

Pilot of a cluster randomised trial involving sixty-seven participants. The participants were recruited from four Primary Health Centres (PHCs), and were allocated into groups (intervention: 36; control: 31) based on the PHCs they were registered in. The 3-month intervention consisted of weekly group activities including physical activity and education. Control was usual care. The outcomes were change in HbA1c, medication adherence, and self-management behaviours. To test our intervention, we used a mixed linear model, with participants nested within cluster/health centre.

RESULTS

Participants were 60% female, mean age 57, and had diabetes for an average of 4.5 years. Groups did not differ at baseline. Counter to prediction, no effects of the intervention over usual care were observed on the outcomes measured. However, both groups made statistically significant improvements in HbA1c (intervention from 8.3% ± 1.9 to 7.8% ± 1.8; control from 8.4% ± 2.6 to 7.9% ± 2.5).

CONCLUSIONS

The effect of the intervention did not differ from usual care. However, both groups made improvements in HbA1c outcome, suggesting that the project might have indirectly triggered more intensive care for diabetes patients.

Identifying determinants of diabetes risk and outcomes for people with severe mental illness: a mixed-methods study

Background

People with severe mental illness experience poorer health outcomes than the general population. Diabetes contributes significantly to this health gap.

Objectives

The objectives were to identify the determinants of diabetes and to explore variation in diabetes outcomes for people with severe mental illness.

Design

Under a social inequalities framework, a concurrent mixed-methods design combined analysis of linked primary care records with qualitative interviews.

Setting

The quantitative study was carried out in general practices in England (2000–16). The qualitative study was a community study (undertaken in the North West and in Yorkshire and the Humber).

Participants

The quantitative study used the longitudinal health records of 32,781 people with severe mental illness (a subset of 3448 people had diabetes) and 9551 ‘controls’ (with diabetes but no severe mental illness), matched on age, sex and practice, from the Clinical Practice Research Datalink (GOLD version). The qualitative study participants comprised 39 adults with diabetes and severe mental illness, nine family members and 30 health-care staff.

Data sources

The Clinical Practice Research Datalink (GOLD) individual patient data were linked to Hospital Episode Statistics, Office for National Statistics mortality data and the Index of Multiple Deprivation.

Results

People with severe mental illness were more likely to have diabetes if they were taking atypical antipsychotics, were living in areas of social deprivation, or were of Asian or black ethnicity. A substantial minority developed diabetes prior to severe mental illness. Compared with people with diabetes alone, people with both severe mental illness and diabetes received more frequent physical checks, maintained tighter glycaemic and blood pressure control, and had fewer recorded physical comorbidities and elective admissions, on average. However, they had more emergency admissions (incidence rate ratio 1.14, 95% confidence interval 0.96 to 1.36) and a significantly higher risk of all-cause mortality than people with diabetes but no severe mental illness (hazard ratio 1.89, 95% confidence interval 1.59 to 2.26). These paradoxical results may be explained by other findings. For example, people with severe mental illness and diabetes were more likely to live in socially deprived areas, which is associated with reduced frequency of health checks, poorer health outcomes and higher mortality risk. In interviews, participants frequently described prioritising their mental illness over their diabetes (e.g. tolerating antipsychotic side effects, despite awareness of harmful impacts on diabetes control) and feeling overwhelmed by competing treatment demands from multiple morbidities. Both service users and practitioners acknowledged misattributing physical symptoms to poor mental health (‘diagnostic overshadowing’).

Limitations

Data may not be nationally representative for all relevant covariates, and the completeness of recording varied across practices.

Conclusions

People with severe mental illness and diabetes experience poorer health outcomes than, and deficiencies in some aspects of health care compared with, people with diabetes alone.

Future work

These findings can inform the development of targeted interventions aimed at addressing inequalities in this population.

Study registration

National Institute for Health Research (NIHR) Central Portfolio Management System (37024); and ClinicalTrials.gov NCT03534921.

Funding

This project was funded by the NIHR Health Services and Delivery Research programme and will be published in full in Health Services and Delivery Research; Vol. 9, No. 10. See the NIHR Journals Library website for further project information.

Impact of continuing medical education for primary healthcare providers in Malaysia on diabetes knowledge, attitudes, skills and clinical practices

Background: Continuing Medical Education (CME) is a cornerstone of improving competencies and ensuring high-quality patient care by nurses and physicians. The Ministry of Health (MOH) Malaysia collaborated with Steno Diabetes Centre to improve diabetes-related competencies of general physicians and nurses working in primary care through a six-month training programme called the Steno REACH Certificate Course in Clinical Diabetes Care (SRCC).Objective: This impact evaluation aimed to assess the effect of participation of general physicians and nurses in the SRCC in selected public primary healthcare clinics in Kuala Lumpur and Selangor, Malaysia.Design: The quasi-experimental, embedded, mixed-methods study used concurrent data collection and the Solomon four-group design. Participants in an intervention group (Arm 1) and control group (Arm 3) were assessed by pre-and post-test, and participants in separate intervention (Arm 2) and control (Arm 4) groups were assessed by post-test only. Quantitative and qualitative methods were used to assess the effect of the programme.Results: Thirty-four of the 39 participants in the intervention groups (Arms 1 and 2) completed the SRCC and were included in the analysis. All 35 participants in the control groups (Arms 3 and 4) remained at the end of the study period. Significant improvements in diabetes-related knowledge, skills and clinical practise were found among general physicians and nurses in the intervention group after the six-month SRCC, after controlling the pretest effects. No clear changes could be traced regarding attitudes.Conclusion: SRCC participants had significant improvements in knowledge, skills and clinical practice that meet the current needs of general physicians and nurses working in primary care in Malaysia. Thus, SRCC is an effective CME approach to improving clinical diabetes care that can be scaled up to the rest of the country and, with some modification, beyond Malaysia.

Relative Contribution of Individual, Community, and Health System Factors on Glycemic Control Among Inner-City African Americans with Type 2 Diabetes

BACKGROUND

Health disparities disproportionately impact inner-city African Americans; however, limited information exists on the contribution of individual, community, and health system barriers on diabetes outcomes in this population.

METHODS

A cross-sectional study collected primary data from 241 inner-city African Americans with type 2 diabetes. A conceptual framework was used to specify measurements across the individual level, such as age and comorbidities; community level, such as neighborhood factors and support; and health system level such as access, trust, and provider communication. Based on current best practices, four regression approaches were used: sequential, stepwise with forward selection, stepwise with backward selection, and all possible subsets. Variables were entered in blocks based on the theoretical framework in the order of individual, community, and health system factors and regressed against HbA1c.

RESULTS

In the final adjusted model across all four approaches, individual-level factors like age (β = - 0.05; p < 0.001); having 1-3 comorbidities (β = - 2.03; p < 0.05), and having 4-9 comorbidities (β = - 2.49; p = 0.001) were associated with poorer glycemic control. Similarly, male sex (β = 0.58; p < 0.05), being married (β = 1.16; p = 0.001), and being overweight/obese (β = 1.25; p < 0.01) were associated with better glycemic control. Community and health system-level factors were not significantly associated with glycemic control.

CONCLUSION

Individual-level factors are key drivers of glycemic control among inner-city African Americans. These factors should be the key targets for interventions to improve glycemic control in this population. However, community and health system factors may have indirect pathways to glycemic control that should be examined in future studies.

Improving Glycemic Control in African Americans With Diabetes and Mild Cognitive Impairment

BACKGROUND/OBJECTIVES

Improving glycemic control in older African Americans with diabetes and mild cognitive impairment (MCI) is important as the population ages and becomes more racially diverse.

DESIGN

Randomized controlled trial.

SETTING

Recruitment from primary care practices of an urban academic medical center. Community-based treatment delivery.

PARTICIPANTS

Older African Americans with MCI, low medication adherence, and poor glycemic control (N = 101).

INTERVENTIONS

Occupational therapy (OT) behavioral intervention and diabetes self-management education.

MEASUREMENTS

The primary outcome was a reduction in hemoglobin A1c level of at least 0.5% at 6 months, with maintenance effects assessed at 12 months.

RESULTS

At 6 months, 25 of 41 (61.0%) OT participants and 22 of 46 (48.2%) diabetes self-management education participants had a reduction in hemoglobin A1c level of at least 0.5%. The model-estimated rates were 58% (95% confidence interval [CI] = 45%-75%) and 48% (95% CI = 36%-64%), respectively (relative risk [RR] = 1.21; 95% CI = 0.84-1.75; P = .31). At 12 months, the respective rates were 21 of 39 (53.8%) OT participants and 24 of 49 (49.0%) diabetes self-management education participants. The model-estimated rates were 50% (95% CI = 37%-68%) and 48% (95% CI = 36%-64%), respectively (RR = 1.05; 95% CI = 0.70-1.57; P = .81).

CONCLUSION

Both interventions improved glycemic control in older African Americans with MCI and poor glycemic control. This result reinforces the American Diabetes Association's recommendation to assess cognition in older persons with diabetes and demonstrates the potential to improve glycemic control in this high-risk population. J Am Geriatr Soc 68:1015-1022, 2020.

Individual-, Community-, and Health System-Level Barriers to Optimal Type 2 Diabetes Care for Inner-City African Americans: An Integrative Review and Model Development

PURPOSE

The purpose of this integrative review is (1) to elucidate the unique barriers faced by inner-city African Americans for type 2 diabetes (T2DM) care; (2) to identify effective interventions/programs for optimal T2DM care at the individual, community, and health systems levels; and (3) to integrate 2 behavioral models and 1 social ecological model for framing interventions for inner-city African American to optimize T2DM care.

METHODS

PRISMA guidelines were followed to systematically search PubMed, PsychInfo, and CINAHL. Integration of models was based on underlying principles of social ecological models.

RESULTS

The search returned 1183 articles. Forty-six articles were synthesized after applying inclusion criteria. Multiple barriers for the individual level, community level, and health system level were identified. Major barriers include lack of knowledge, lack of social support, and self-management support. Interventions identified in this review show that among inner-city African Americans with T2DM, the focus is placed at the health systems level, with very limited focus toward addressing individual- and community-level barriers. Final synthesis includes development of a new integrated model that explains barriers to care across multiple levels.

CONCLUSIONS

These findings highlight the fragmentation that may be occurring between policy, research, and practice for achieving health equity and addressing health disparities for T2DM care among inner-city African Americans. The new model is an important step in the pursuit of equity in T2DM by specifying the complex barriers that occur across multiple levels. The application of this model using the 2017 National Standards for Diabetes-Self Management Education and Support are discussed.

Incidences of Severe Hypoglycemia and Diabetic Ketoacidosis and Prevalence of Microvascular Complications Stratified by Age and Glycemic Control in U.S. Adult Patients With Type 1 Diabetes: A Real-World Study

OBJECTIVE

To assess the burden of disease for adults with type 1 diabetes in a U.S. electronic health record database by evaluating acute and microvascular complications stratified by age and glycemic control.

RESEARCH DESIGN AND METHODS

This is a retrospective observational study of adults with type 1 diabetes (1 July 2014-30 June 2016) classified using a validated algorithm, with disease duration ≥24 months and, during a 12-month baseline period, not pregnant and having one or more insulin prescriptions and one or more HbA_1c measurements. Demographic characteristics, acute complications (severe hypoglycemia [SH], diabetic ketoacidosis [DKA]), and microvascular complications (neuropathy, nephropathy, retinopathy) were stratified by age (18-25, 26-49, 50-64, ≥65 years) and glycemic control (HbA_1c <7%, 7% to <9%, ≥9%).

RESULTS

Of 31,430 patients, ∼20% had HbA_1c <7%. Older patients had lower HbA_1c values than younger patients (P < 0.001). Patients with poor glycemic control had the highest annual incidence of SH (4.2%, 4.0%, and 8.3%) and DKA (1.3%, 2.8%, and 15.8%) for HbA_1c <7%, 7% to <9%, and ≥9% cohorts, respectively (both P < 0.001), and a higher prevalence of neuropathy and nephropathy (both P < 0.001).

CONCLUSIONS

For adults with type 1 diabetes, glycemic control appears worse than previously estimated. Rates of all complications increased with increasing HbA_1c. Compared with HbA_1c <7%, HbA_1c ≥9% was associated with twofold and 12-fold higher incidences of SH and DKA, respectively. Younger adults had more pronounced higher risks of SH and DKA associated with poor glycemic control than older adults.

Health Care Resource Distribution of Texas Counties With High Rates of Leg Amputations

BACKGROUND

Lower extremity amputation rates associated with peripheral arterial disease in Texas are high and vary disproportionately among different populations. We sought to assess the impact of socioeconomic status and health care resource distribution on the geographic prevalence of lower extremity amputation in Texas counties.

MATERIALS AND METHODS

We collated 2005-2009 data on all 254 Texas counties. The primary outcome was the number of nontraumatic lower extremity amputations. Population-adjusted regressions identified factors that could explain increasing amputation rates.

RESULTS

We identified 33 counties with population-weighted amputation rates in the highest 25%. These counties had higher rates of diabetes, larger populations of people categorized as black, fewer health care resources, and lower health care utilization. In the presence of more emergency room visits, dual Medicare/Medicaid eligibility decreased total amputations. In counties with more than 70% rural communities, additional primary care providers also significantly decreased amputations per 100,000 residents (mean difference = -0.12, 95% confidence interval: -0.23, -0.0008).

CONCLUSIONS

Policy-driven strategic health care resource allocation at the local level may benefit patients in high-need, low-resource areas and promote a reduction in amputations.

Redesigning ambulatory care management for uncontrolled type 2 diabetes: a prospective cohort study of the impact of a Boot Camp model on outcomes

OBJECTIVE

Type 2 diabetes care management (DCM) is challenging. Few studies report meaningful improvements in clinical care settings, warranting DCM redesign. We developed a Boot Camp to provide timely, patient-centered, technology-enabled DCM. Impact on hemoglobin A_1c (HbA_1c), emergency department (ED) visits and hospitalizations among adults with uncontrolled type 2 diabetes were examined.

RESEARCH DESIGN AND METHODS

The intervention was designed using the Practical Robust Implementation and Sustainability Model to embed elements of the chronic care model. Adults with HbA_1c>9% (75 mmol/mol) enrolled between November 2014 and November 2017 received diabetes education and medication management by diabetes educators and nurse practitioners via initial clinic and subsequent weekly virtual visits, facilitated by near-real-time blood glucose transmission for 90 days. HbA_1c and risk for ED visits and hospitalizations at 90 days, and potential savings from reducing avoidable medical utilizations were examined. Boot Camp completers were compared with concurrent, propensity-matched chart controls receiving usual DCM in primary care practices.

RESULTS

A cohort of 366 Boot Camp participants plus 366 controls was analyzed. Participants were 79% African-American, 63% female and 59% Medicare-insured or Medicaid-insured and mean age 56 years. Baseline mean HbA_1c for cases and controls was 11.2% (99 mmol/mol) and 11.3% (100 mmol/mol), respectively. At 90 days, HbA_1c was 8.1% (65 mmol/mol) and 9.9% (85 mmol/mol), p<0.001, respectively. Risk for 90-day all-cause hospitalizations decreased 77% for participants and increased 58% for controls, p=0.036. Mean potential for monetization of US$3086 annually per participant for averted hospitalizations were calculated.

CONCLUSIONS

Redesigning diabetes care management using a pragmatic technology-enabled approach supported translation of evidence-based best practices across a mixed-payer regional healthcare system. Diabetes educators successfully participated in medication initiation and titration. Improvement in glycemic control, reduction in hospitalizations and potential for monetization was demonstrated in a high-risk cohort of adults with uncontrolled type 2 diabetes.

TRIAL REGISTRATION NUMBER

NCT02925312.

Significant effect of group education in patients with diabetes type 1

OBJECTIVE

Type 1 diabetes mellitus (T1DM) constitutes a real challenge in everyday practice for both physicians and patients. Due to the complexity of the disease and its unpredictable nature, structured education and training programs are nowadays implemented that ensure active patient involvement and self-care behaviors to achieve adequate glycemic control, prevent diabetic complications, and improve the quality of life of patients. These programs provide patients with the necessary knowledge and skills to self-monitor and self-manage the disease and its associated metabolic conditions. The aim of the study was to evaluate the effect of a structured 12-month education program that motivated patients to follow a healthy Mediterranean diet and exercise regularly as well as to adjust carbohydrate intake and insulin dose according to their needs.

DESIGN

The education group (EG) was comprised of 62 patients (45 males) with type 1 DM, mean age 36 ± 4.2 years and BMI 24.2 ± 3.1 kg/m². An age- and BMI-matched control group (CG, n = 25, mean age 41 ± 6.4 years, BMI 25.7 ± 4.2 kg/m²) was composed of patients referred but not enrolled in the project.

RESULTS

At the end of this program, HbA1C levels were significantly decreased (8.5 ± 2.1% vs. 7.08 ± 0.79%, p < 0.0001) as was also the incidence of hypoglycemic episodes (p < 0.05). Regarding daily glucose fluctuations, significant improvement (p < 0.05) was observed, as reflected in low, high, and daily median glucose values. On the other hand, the above parameters remained stable in the CG.

CONCLUSIONS

These results strongly support the need for long-lasting structured education group courses for adult diabetic patients keen to change their habits in order to achieve self-management of the disease.

The Case for Diabetes Population Health Improvement: Evidence-Based Programming for Population Outcomes in Diabetes

PURPOSE OF REVIEW

The goal of this review is to describe diabetes within a population health improvement framework and to review the evidence for a diabetes population health continuum of intervention approaches, including diabetes prevention and chronic and acute diabetes management, to improve clinical and economic outcomes.

RECENT FINDINGS

Recent studies have shown that compared to usual care, lifestyle interventions in prediabetes lower diabetes risk at the population-level and that group-based programs have low incremental medial cost effectiveness ratio for health systems. Effective outpatient interventions that improve diabetes control and process outcomes are multi-level, targeting the patient, provider, and healthcare system simultaneously and integrate community health workers as a liaison between the patient and community-based healthcare resources. A multi-faceted approach to diabetes management is also effective in the inpatient setting. Interventions shown to promote safe and effective glycemic control and use of evidence-based glucose management practices include provider reminder and clinical decision support systems, automated computer order entry, provider education, and organizational change. Future studies should examine the cost-effectiveness of multi-faceted outpatient and inpatient diabetes management programs to determine the best financial models for incorporating them into diabetes population health strategies.

Type 2 diabetes and quality of life

It is true that a primary goal of diabetes early diagnosis and treatment is quality of life (QoL). The term QoL is still confusing but it is agreed that it composes of four components: The physical component, mental, cogitative component, psychological and social component. Many articles have been written addressing those four components. During the last five years 15500 articles and reviews have been written addressing diabetes and coronary arterial disease, 16100 addressing diabetes and renal function, 28900 addressing diabetes and retinopathy, 16800 addressing diabetic foot ulcers and other 26300 addressing diabetic neuropathy. Moreover 17200 articles are dealing with diabetic sexual dysfunction, 24500 with the correlation of diabetes and depression 17500 about diabetes and dementia, only 1 about diabetes and family functioning and 1950000 about diabetes and QoL, indicating the worldwide interest. In order to confront this metabolic anomaly and its consequences, researchers developed numerous generic and disease specific psychometric tools. With the aid of those psychometric tools the scientific community has started to realize the gruesome effect of diabetes on patients’ lives. Diabetic’s QoL becomes worse when complications start to develop or comorbidities coexist. Dominant amongst complications, in health-related quality of life (HRQoL) lowering, but not related to risk factors (genetic, the weight of birth, or others) is coronary arterial disease followed by renal failure, blindness, and the combination of micro- and macro-vascular complications and in some studies by sexual dysfunction. Moreover many are the comorbidities which deteriorate further the effect of diabetes in a patient life. Among them obesity, hypertension, dyslipidemia, depression, arthritis are the most common. Most intriguing field for research is the interaction of diabetes and depression and in some cases the progression to dementia. Many aspects and combinations of actions are under researchers’ microscope regarding the improvement of HRQoL scores. Until now, the studies performed, have demonstrated little to moderate benefit. More of them are needed to draw safe conclusions on the topic of the best combination of actions to optimize the HRQoL scores.

An Analysis of the Recruitment and Participation of African American Men in Type 2 Diabetes Self-Management Research: A Review of the Published Literature

Research studies have shown that African American men have experienced higher rates of serious complications of type 2 diabetes, due in part to poor disease management. Although type 2 diabetes research among minority populations is consistently advancing, there still remains a scarcity of African American male representation within these studies. It is unclear if this scarcity stems from lack of interest among men, location of recruitment, or ways in which these men are motivated to participate in research studies. As a result, an analysis of recruitment methods and locations of literature that includes African American men with type 2 diabetes is needed. The purpose of this review of the literature is threefold: (a) determine the number of published empirical studies specific to type 2 diabetes self-management that included African Americans in the sample, (b) to evaluate the percentage of men that were represented in the study sample as compared to how many women, and

Genomics of Colorectal Cancer in African Americans

Genome-wide studies are increasingly becoming a must, especially for complex diseases such as cancer where multiple genes and diverse molecular mechanisms are known to be involved in genes' function alteration. In this review, we report our latest genomic and epigenomic findings in African-American colorectal cancer patients. This population suffers a higher burden of the disease and most investigators in this field are looking for the underlying genetic and epigenetic targets that might be responsible for this disparity. We here report genome-wide copy number variations, single nucleotide mutations and DNA methylation findings that might be specific to this population.

Effectiveness of an intervention to improve diabetes self-management on clinical outcomes in patients with low educational level

OBJECTIVE

To determine whether an intervention based on patient-practitioner communication is more effective than usual care in improving diabetes self-management in patients with type 2 diabetes with low educational level.

METHODS

12-month, pragmatic cluster randomised controlled trial. Nine physicians and 184 patients registered at two practices in a deprived area of Granada (Andalusia, Spain) participated in the study. Adult patients with type 2 diabetes, low educational level and glycated haemoglobin (HbA1c) > 7% (53.01 mmol/mol) were eligible. The physicians in the intervention group received training on communication skills and the use of a tool for monitoring glycaemic control and providing feedback to patients. The control group continued standard care. The primary outcome was difference in HbA1c after 12 months. Dyslipidaemia, blood pressure, body mass index and waist circumference were also assessed as secondary outcomes. Two-level (patient and provider) regression analyses controlling for sex, social support and comorbidity were conducted.

RESULTS

The HbA1c levels at 12 months decreased in both groups. Multilevel analysis showed a greater improvement in the intervention group (between-group HbA1c difference= 0.16; p=0.049). No statistically significant differences between groups were observed for dyslipidaemia, blood pressure, body mass index and waist circumference.

CONCLUSIONS

In this pragmatic study, a simple and inexpensive intervention delivered in primary care showed a modest benefit in glycaemic control compared with usual care, although no effect was observed in the secondary outcomes. Further research is needed to design and assess interventions to promote diabetes self-management in socially vulnerable patients.

Application of Ferrans and Powers Quality of Life Model to Improve Diabetes Health Outcomes: A Pilot Study

The purpose of this pilot study was to evaluate the effectiveness of Ferrans and Powers Quality of Life Model as a guide to improve diabetes health outcomes. The success of the holistic and patient-centered diabetes pilot program indicates that nontraditional approaches to managing diabetes are effective.

A Comparison of the Use and Quality of Antidiabetic Medication Regimens Between Non-Hispanic Black and White Adults With Uncontrolled Type 2 Diabetes in the US

Purpose

The purpose of this study was to determine the use of clinical guideline–recommended antidiabetic therapies among whites and blacks with uncontrolled type 2 diabetes.

Methods

A secondary data analysis based on NHANES 2003-2012 cohort data including non-Hispanic black and white adults with uncontrolled (A1C ≥6.5%) type 2 diabetes.

Results

Blacks were more likely to have the highest levels of A1C compared to whites (A1C >9% = 29.8% vs 16.2%). There was no statistical difference in the use of recommended regimens across racial group (blacks 60.5% vs whites 66.0%). Blacks and whites who were most uncontrolled were least likely to be on recommended regimens (A1C 6.5%-7.4%: 78.5%, A1C 7.5%-9%: 57.2%; and A1C >9%: 54.1%). This pattern was most pronounced among blacks compared to whites but was not statistically different. Use of recommended therapies decreased 29.0 percentage points for blacks and 20.1 percentage points among whites from an A1C level of 6.5% to 7.4% to >9%, respectively. The total proportion of blacks and whites on intensified non-insulin triple or insulin-based therapies were 38.9% and 41.8%, respectively.

Conclusions

Even though blacks were more likely than whites to have the highest A1C, no significant differences were found in the use of clinical–guideline recommended regimens or other regimen use outcomes. Along with lifestyle modification, further intensification of antidiabetic regimens may help improve glycemic control and other disparities between blacks and whites.

Diabetes self-management interventions for adults with type 2 diabetes living in rural areas: a systematic literature review

In rural communities, high rates of diabetes and its complications are compounded by limited access to health care and scarce community resources. We systematically reviewed the evidence for the impact of diabetes self-management education interventions designed for patients living in rural areas on glycemic control and other diabetes outcomes. Fifteen studies met inclusion criteria. Ten were randomized controlled trials. Intervention strategies included in-person diabetes (n = 9) and telehealth (n = 6) interventions. Four studies demonstrated between group differences for biologic outcomes, four studies demonstrated changes in behavior, and three studies demonstrated changes in knowledge. Intervention dose was associated with improved A1c or weight loss in two studies and session attendance in one study. Interventions that included collaborative goal-setting were associated with improved metabolic outcomes and self-efficacy. Telehealth and face-to-face diabetes interventions are both promising strategies for rural communities. Effective interventions included collaborative goal-setting. Intervention dose was linked to better outcomes and higher attendance.

Community Interventions to Improve Glycemic Control in African Americans with Type 2 Diabetes: A Systemic Review

PURPOSE

The purpose of this study was to conduct a systematic review of published community interventions to evaluate different components of community interventions and their ability to positively impact glycemic control in African Americans with T2DM.

METHODS

Medline, PsychInfo, and CINAHL were searched for potentially eligible studies published from January 2000 through January 2012. The following inclusion criteria were established for publications: (1) describe a community intervention, not prevention; (2) specifically indicate, in data analysis and results, the impact of the community intervention on African American adults, 18 years and older; (3) measure glycemic control (HbA1C) as an outcome measure; and (4) involve patients in a community setting, which excludes hospitals and hospital clinics.

RESULTS

Thirteen studies out of 9,233 articles identified in the search met the predetermined inclusion criteria. There were 5 randomized control trials and 3 reported improved glycemic control in the intervention group compared to the control group at the completion of the study. Of the 8 studies that were not randomized control trials, 6 showed a statistically significant change in HbA1C.

CONCLUSION

In general, the community interventions assessed led to significant reductions in HbA1C in African Americans with type 2 diabetes. Community health workers did not have a greater impact on glycemic control in this sample. The findings of this study provides insight for designing community-based interventions in the future, such as including use of multiple delivery methods, consideration of mobile device software, nutritionist educator, and curriculum-based approaches.

Duration of participation in continuous quality improvement: a key factor explaining improved delivery of Type 2 diabetes services

Background

It is generally recognised that continuous quality improvement (CQI) programs support development of high quality primary health care systems. However, there is limited evidence demonstrating their system-wide effectiveness. We examined variation in quality of Type 2 diabetes service delivery in over 100 Aboriginal and Torres Strait Islander primary health care centres participating in a wide-scale CQI project over the past decade, and determined the influence of health centre and patient level factors on quality of care, with specific attention to health centre duration of participation in a CQI program.

Methods

We analysed over 10,000 clinical audit records to assess quality of Type 2 diabetes care of patients in 132 Aboriginal and Torres Strait Islander community health centres in five states/territories participating in the ABCD project for varying periods between 2005 and 2012. Process indicators of quality of care for each patient were calculated by determining the proportion of recommended guideline scheduled services that were documented as delivered. Multilevel regression models were used to quantify the amount of variation in Type 2 diabetes service delivery attributable to health centre or patient level factors and to identify those factors associated with greater adherence to best practice guidelines.

Results

Health centre factors that were independently associated with adherence to best practice guidelines included longer participation in the CQI program, remoteness of health centres, and regularity of client attendance. Significantly associated patient level variables included greater age, and number of co-morbidities and disease complications. Health centre factors explained 37% of the differences in level of service delivery between jurisdictions with patient factors explaining only a further 1%.

Conclusions

At the health centre level, Type 2 diabetes service delivery could be improved through long term commitment to CQI, encouraging regular attendance (for example, through patient reminder systems) and improved recording and coordination of patient care in the complex service provider environments that are characteristic of non-remote areas.

Diabetes connect: African American men's preferences for a community-based diabetes management program

PURPOSE

The purpose of the study is to explore African American men's perceptions of how community-based, community-health worker (CHW)-delivered diabetes interventions might best be implemented.

METHODS

Four 90-minute focus groups were guided by a trained moderator with a written guide to facilitate discussion on the topic of diabetes management and preferences for community-based programs. Participants were recruited from the diabetes education database at a safety-net health system in Jefferson County, AL. Two independent reviewers performed content analysis to identify major themes using an iterative, combined deductive and inductive approach.

RESULTS

There were 25 male participants. Mean years living with diabetes was 9.6 (range, 1-20). Participants demonstrated knowledge of self-management strategies and identified various hardships including emotional and physical manifestations of diabetes, dietary restrictions, and institutional frustrations with the health system that contributed to self-management barriers. Their preferred CHW responsibilities were to educate, hold support groups, help track daily activities, and help find resources. Potential concerns included the need for confidentiality and fears of being stereotyped.

CONCLUSIONS

Participants identified critical self-management strategies but endure hardships that present barriers to daily diabetes management. Preferences for community-based programs and suggested CHW responsibilities could help to overcome many of those barriers by increasing access and providing support.

DNA methylome profiling identifies novel methylated genes in African American patients with colorectal neoplasia

The identification of genes that are differentially methylated in colorectal cancer (CRC) has potential value for both diagnostic and therapeutic interventions specifically in high-risk populations such as African Americans (AAs). However, DNA methylation patterns in CRC, especially in AAs, have not been systematically explored and remain poorly understood. Here, we performed DNA methylome profiling to identify the methylation status of CpG islands within candidate genes involved in critical pathways important in the initiation and development of CRC. We used reduced representation bisulfite sequencing (RRBS) in colorectal cancer and adenoma tissues that were compared with DNA methylome from a healthy AA subject's colon tissue and peripheral blood DNA. The identified methylation markers were validated in fresh frozen CRC tissues and corresponding normal tissues from AA patients diagnosed with CRC at Howard University Hospital. We identified and validated the methylation status of 355 CpG sites located within 16 gene promoter regions associated with CpG islands. Fifty CpG sites located within CpG islands-in genes ATXN7L1 (2), BMP3 (7), EID3 (15), GAS7 (1), GPR75 (24), and TNFAIP2 (1)-were significantly hypermethylated in tumor vs. normal tissues (P<0.05). The methylation status of BMP3, EID3, GAS7, and GPR75 was confirmed in an independent, validation cohort. Ingenuity pathway analysis mapped three of these markers (GAS7, BMP3 and GPR) in the insulin and TGF-β1 network-the two key pathways in CRC. In addition to hypermethylated genes, our analysis also revealed that LINE-1 repeat elements were progressively hypomethylated in the normal-adenoma-cancer sequence. We conclude that DNA methylome profiling based on RRBS is an effective method for screening aberrantly methylated genes in CRC. While previous studies focused on the limited identification of hypermethylated genes, ours is the first study to systematically and comprehensively identify novel hypermethylated genes, as well as hypomethylated LINE-1 sequences, which may serve as potential biomarkers for CRC in African Americans. Our discovered biomarkers were intimately linked to the insulin/TGF-B1 pathway, further strengthening the association of diabetic disorders with colon oncogenic transformation.

Improving diabetes care in rural areas: a systematic review and meta-analysis of quality improvement interventions in OECD countries

BACKGROUND AND AIMS

Despite well documented disparities in health and healthcare in rural communities, evidence in relation to quality improvement (QI) interventions in those settings is still lacking. The main goals of this work were to assess the effectiveness of QI strategies designed to improve diabetes care in rural areas, and identify characteristics associated with greater success.

METHODS

We conducted a systematic review and meta-analysis. Systematic electronic searches were conducted in MEDLINE, EMBASE, CINAHL, and 12 additional bibliographic sources. Experimental studies carried out in the OECD member countries assessing the effectiveness of QI interventions aiming to improve diabetes care in rural areas were included. The effect of the interventions and their impact on glycated hemoglobin was pooled using a random-effects meta-analysis.

RESULTS

Twenty-six studies assessing the effectiveness of twenty QI interventions were included. Interventions targeted patients (45%), clinicians (5%), the health system (15%), or several targets (35%), and consisted of the implementation of one or multiple QI strategies. Most of the interventions produced a positive impact on processes of care or diabetes self-management, but a lower effect on health outcomes was observed. Interventions with multiple strategies and targeting the health system and/or clinicians were more likely to be effective. Six QI interventions were included in the meta-analysis (1,496 patients), which showed a significant reduction in overall glycated hemoglobin of 0.41 points from baseline in those patients receiving the interventions (95% CI -0.75% to -0.07%).

CONCLUSIONS

This work identified several characteristics associated with successful interventions to improve the quality of diabetes care in rural areas. Efforts to improve diabetes care in rural communities should focus on interventions with multiple strategies targeted at clinicians and/or the health system, rather than on traditional patient-oriented interventions.

Effectiveness of two interventions based on improving patient-practitioner communication on diabetes self-management in patients with low educational level: study protocol of a clustered randomized trial in primary care

BACKGROUND

In the last decades the presence of social inequalities in diabetes care has been observed in multiple countries, including Spain. These inequalities have been at least partially attributed to differences in diabetes self-management behaviours. Communication problems during medical consultations occur more frequently to patients with a lower educational level. The purpose of this cluster randomized trial is to determine whether an intervention implemented in a General Surgery, based in improving patient-provider communication, results in a better diabetes self-management in patients with lower educational level. A secondary objective is to assess whether telephone reinforcement enhances the effect of such intervention. We report the design and implementation of this on-going study.

METHODS/DESIGN

The study is being conducted in a General Practice located in a deprived neighbourhood of Granada, Spain. Diabetic patients 18 years old or older with a low educational level and inadequate glycaemic control (HbA1c > 7%) were recruited. General Practitioners (GPs) were randomised to three groups: intervention A, intervention B and control group. GPs allocated to intervention groups A and B received training in communication skills and are providing graphic feedback about glycosylated haemoglobin levels. Patients whose GPs were allocated to group B are additionally receiving telephone reinforcement whereas patients from the control group are receiving usual care. The described interventions are being conducted during 7 consecutive medical visits which are scheduled every three months. The main outcome measure will be HbA1c; blood pressure, lipidemia, body mass index and waist circumference will be considered as secondary outcome measures. Statistical analysis to evaluate the effectiveness of the interventions will include multilevel regression analysis with three hierarchical levels: medical visit level, patient level and GP level.

DISCUSSION

The results of this study will provide new knowledge about possible strategies to promote a better diabetes self-management in a particularly vulnerable group. If effective, this low cost intervention will have the potential to be easily incorporated into routine clinical practice, contributing to decrease health inequalities in diabetic patients.

TRIAL REGISTRATION

Clinical Trials U.S. National Institutes of Health, NCT01849731.