Effectiveness of an adapted diabetes nutrition education program on clinical status, dietary behaviors and behavior mediators in adults with type 2 diabetes: a randomized controlled trial

Therapeutic patient education programs on diabetes in sub-Saharan Africa: A systematic review

BACKGROUND

Diabetes is a chronic disease associated with the potential for blindness, kidney failure, heart attacks, strokes, and lower limb amputations. The global prevalence of diabetes is rising, particularly in the sub-Saharan African (SSA) region, where accessing treatment and antidiabetic drugs is complex, leading to challenges in managing the condition. Intentional and structured therapeutic education has demonstrated its ability to enhance health outcomes in diabetes patients. Given the numerous healthcare deficiencies in sub-Saharan Africa, the authors have reevaluated the role of therapeutic patient education (TPE) in this context.

METHODS

This systematic review adhered to the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) guidelines. We queried four databases between March 14 and June 30, 2023 and conducted Cochrane's Risk of Bias analysis on the included studies. Subsequently, a qualitative synthesis of the results was performed.

RESULTS

The final analysis included thirteen studies. Seven of these, which assessed glycemic control, reported statistically significant results. Additionally, other clinical parameters such as body mass index (BMI), blood pressure, and lipid levels also exhibited some significant improvements. Knowledge substantially increased following the intervention, while attitude, self-care practices, and medication adherence showed no significant improvements. Nurse-led and peer-led intervention programs produced positive outcomes, whereas technology-based intervention methods did not yield favorable results.

CONCLUSION

TPE programs in sub-Saharan Africa have a significant impact on both clinical and non-clinical outcomes in diabetes patients. However, the sustainability of these outcomes remains uncertain. Further research is needed to assess the long-term effects of TPE on diabetes patients.

Effectiveness and safety of self-management interventions for improving glycemic control and health-related quality-of-life among adults with type 2 diabetes mellitus in sub-Saharan Africa: a systematic review and meta-analysis

OBJECTIVE

The objective of this review was to assess and synthesize evidence on the effectiveness and safety of self-management interventions for improving glycemic control and health-related quality of life (HRQoL) among adults with type 2 diabetes mellitus (T2DM) in sub-Saharan Africa.

INTRODUCTION

There has been a rapid increase in the prevalence of T2DM in sub-Saharan Africa. Lifestyle-related risk factors require self-management strategies, and these must be tailored to the context. Several randomized controlled trials (RCTs) evaluating T2DM self-management interventions in sub-Saharan Africa have been conducted.

INCLUSION CRITERIA

This systematic review included RCTs assessing the effectiveness and safety of self-management interventions among adults with T2DM in sub-Saharan Africa, where the self-management intervention matched at least 1 category of the Practical Reviews in Self-Management Support (PRISMS) for long-term conditions taxonomy.

METHODS

The following databases were searched from inception until January 14, 2023: MEDLINE (Ovid), Embase (Ovid), CINAHL (EBSCOhost), PsycINFO (Ovid), Scopus, Cochrane Central Register of Controlled Trials (CENTRAL), Directory of Open Access Journals, EthOS, and ProQuest Dissertations and Theses (ProQuest). Global Health (EBSCOhost) was searched from inception until June 8, 2021. OpenGrey was searched from inception until its archive date of December 1, 2020. Two independent reviewers conducted title and abstract screening, full-text screening, data extraction, and critical appraisal. Disagreements were resolved through discussion or with a third reviewer. Data synthesis was conducted narratively, followed by meta-analysis where feasible. The Grading of Recommendations, Assessment, Development and Evaluation (GRADE) approach for assessing the certainty of evidence was applied.

RESULTS

From 2699 records identified, 18 RCTs were included in the systematic review and 14 in the meta-analysis. Interventions included broad self-management education programs, peer support, exercise interventions with education, nutrition education, educational text messaging, and blood glucose self-monitoring support. Only 4 studies were assigned a "yes" result for more than half of the criteria in the standardized JBI critical appraisal tool for RCTs. Compared to the control, self-management interventions did not significantly reduce glycated hemoglobin (HbA1c) at 3 months (302 participants, mean difference [MD] -6.0 mmol/mol, 95% CI -17.5, 5.4; very low certainty on GRADE assessment) or 12 months (1504 participants, MD -3.7 mmol/mol, 95% CI -8.2, 0.7; moderate certainty on GRADE assessment). HbA1c was significantly reduced at 6 months (671 participants, MD -8.1 mmol/mol, 95% CI -10.7, -5.4; low certainty on GRADE assessment). Four studies assessed HRQoL, but only 1 demonstrated an improvement (2205 participants). Three studies reported no adverse events in relation to the trial interventions (1217 participants), and it was not reported in the remainder. There did not appear to be clinically significant effects on body mass index, lipid profile, and systolic or diastolic blood pressure. The evidence was mixed for weight and waist circumference.

CONCLUSIONS

Self-management interventions for adults living with T2DM in sub-Saharan Africa may produce a clinically significant improvement in glycemic control at 6 months, but this may wane in the longer-term. There was not convincing evidence to indicate a benefit of these interventions on HRQoL, but reporting on this outcome measure was limited. There were insufficient data on adverse events to be able to draw conclusions.

REVIEW REGISTRATION

PROSPERO CRD42021237506.

Retention in care for type 2 diabetes management in Sub-Saharan Africa: A systematic review

OBJECTIVE

Diabetes prevalence has risen rapidly in Sub-Saharan Africa, but rates of retention in diabetes care are poorly understood. We conducted a systematic review and meta-analysis to determine rates of retention in care of persons with type 2 diabetes.

METHODS

We searched MEDLINE, Global Health and CINAHL online databases for cohort studies and randomised control trials (RCTs) published up to 12 October 2021, that reported retention in or attrition from care for patients with type 2 diabetes in Sub-Saharan Africa. Retention was defined as persons diagnosed with diabetes who were alive and in care or with a known outcome, while attrition was defined as loss from care.

RESULTS

From 6559 articles identified, after title and abstract screening, 209 articles underwent full text review. Forty six papers met the inclusion criteria, comprising 22,610 participants. Twenty one articles were of RCTs of which 8 trials had 1 year or more of follow-up and 25 articles were of non-randomised studies of which 19 had 12 months or more of follow-up. A total of 11 studies (5 RCTs and 6 non-randomised) were assessed to be of good quality. Sixteen RCTs were done in secondary or tertiary care settings. Their pooled retention rate (95% CI) was 80% (77%, 84%) in the control arm. Four RCTs had been done in primary care settings and their pooled retention rate (95% CI) was 53% (45%, 62%) in the control arm. The setting of one trial was unclear. For non-randomised studies, retention rates (95% CI) were 68% (62%, 75%) among 19 studies done in secondary and tertiary care settings, and 40% (33%, 49%) among the 6 studies done in primary care settings.

CONCLUSION

Rates of retention in care of people living with diabetes are poor in primary care research settings.

Culinary Nutrition Education Programs in Community-Dwelling Older Adults: A Scoping Review

BACKGROUND

Culinary nutrition education programs are increasingly used as a public health intervention for older adults. These programs often integrate nutrition education in addition to interactive cooking workshops or displays to create programs suitable for older adults' needs, ability and behaviour change. Synthesising the existing literature on nutrition education and interactive cooking programs for older adults is important to guide future program development to support healthy ageing.

OBJECTIVES

To determine the extent of published literature and report the characteristics and outcomes of interactive culinary nutrition education programs for older adults (> 51 years).

DESIGN

This scoping review followed the PRISMA-ScR guidelines recommended for reporting and conducting a scoping review.

METHODS

Five databases were searched of relevant papers published to May 2022 using a structured search strategy. Inclusion criteria included: older adults (≥ 51 years), intervention had both an interactive culinary element and nutrition education and reported dietary outcome. Titles and abstracts were screened by two reviewers, followed by full-text retrieval. Data were charted regarding the characteristics of the program and outcomes assessed.

RESULTS

A total of 39 articles met the full inclusion criteria. The majority of these studies (n= 23) were inclusive of a range of age groups where older adults were the majority but did not target older adults exclusively. There were large variations in the design of the programs such as the number of classes (1 to 20), duration of programs (2 weeks to 2 years), session topics, and whether a theoretical model was used or not and which model. All programs were face-to-face (n= 39) with only two programs including alternatives or additional delivery approaches beside face-to-face settings. The most common outcomes assessed were dietary behaviour, dietary intake and anthropometrics.

CONCLUSION

Culinary nutrition education programs provide an environment to improve dietary habits and health literacy of older adults. However, our review found that only a small number of programs were intentionally designed for older adults. This review provides a summary to inform researchers and policy makers on current culinary nutrition education programs for older adults. It also recommends providing face-to-face alternatives that will be accessible to a wider group of older adults with fewer restrictions.

The Influence of Family Caregiver Knowledge and Behavior on Elderly Diabetic Patients' Quality of Life in Northern Thailand

The quality of life (QoL) of elderly diabetic patients may be affected by caregiver factors, but this has received little empirical support. The objective of this cross-sectional study is to determine the influence of family caregivers’ diabetes knowledge and behavior on the QoL among elderly patients with diabetes mellitus (DM). The participants included 354 elderly patients with Type 2 DM and their family caregivers, who were recruited through multistage sampling from five districts in Chiang Mai, Thailand. Face-to-face interviews with DM patients were conducted using the Thai Simplified Diabetes Knowledge Scale (T-SDKS), the Thai version of the Diabetes Self-Management Questionnaire (DSMQ) for self-care behaviors, and the Thai version of the World Health Organization Quality of Life for Older People (WHOQOL-OLD) scale. For caregivers, their diabetes knowledge was measured by T-SDKS and patient-care or supportive behaviors were developed based on DSMQ. The results showed a moderate level of QoL among elderly diabetic patients. According to simple linear regression analysis, the QoL score among elderly DM patients was positively associated with their diabetes knowledge (B = 1.25), self-care behaviors (B = 3.00), caregivers’ knowledge (B = 0.97), and supportive behavior from caregivers (B = 2.92) at a significance level of p < 0.01. In the multivariable model, patients’ self-care behaviors (B = 1.58, p = 0.001), caregivers’ knowledge (B = 0.58, p = 0.001), and patient-care behaviors (B = 1.38, p = 0.004) were significantly associated with QoL among DM patients when controlling for patient factors, including age, body mass index (BMI), education, and living arrangements, which accounted for 27.0% of the variance. This indicates that caregivers’ adequate diabetes knowledge and appropriate supportive behaviors may impact the QoL of elderly diabetic patients. Health care providers should prioritize motivating and empowering family caregivers to pay more attention to the patient for the success goal.