Type 2 diabetes and cognitive dysfunction in minorities: a review of the literature

OBJECTIVES

The purpose of this review was to summarize the current status of knowledge regarding cognitive dysfunction and diabetes in minorities. Literature on the interaction of cognitive dysfunction and diabetes was analyzed to (a) examine the number and characteristics of studies in minority populations; (b) identify tests used to assess cognitive function in diabetes; (c) consider the impact of diabetes on cognitive function; and (d) assess the moderators of the association between diabetes and cognitive function.

DESIGN

A literature review and thematic analysis was conducted. Studies were mapped to describe their design, target population, instruments used, and the physiologic, psychosocial, and socioeconomic findings related to cognitive function and diabetes. Twelve studies met the inclusion criteria.

RESULTS

Hispanics were studied more than any other ethnic group. Rates and degree of cognitive dysfunction were more prevalent in minorities than non-Hispanic whites. Overall, 28 different tests were administered to evaluate cognitive function. There was some variation among findings regarding the relationship of cognitive function and diabetes. Risk for cognitive decline was associated with the diagnosis of diabetes alone, regardless of whether the diabetes was treated or untreated. Higher rates of discrimination were associated with greater cognitive decline Conclusion: Given the context of minority health, there is a potential for higher negative health impact due to the increased prevalence of diabetes and cognitive dysfunction and other related health disparities. Reduction of physiological risk factors for diabetes, consistency in assessment, as well as elimination of structural barriers such as access to care should be helpful in decreasing the incidence of both diabetes and cognitive decline. More research is needed to determine whether the observed differences are modifiable and to identify factors involved in the interaction of diabetes and cognitive decline-not only physiological factors, but factors related to socioeconomic status and quality of life.

The Emergence of Critical Health Psychology

The purpose of this article is twofold: first to provide an overview of the emergence of critical health psychology for those working in the related social and health sciences and as a review of its major developments for health psychology; and second to discuss critically the potential for critical health psychology to contribute to promoting public health with specific reference to the directives espoused by Prilleltensky (2003) and Murray and Campbell (2003). The identification of three philosophical phases of the emergence of critical health psychology is used to examine the directions of the field and the challenges facing critical health psychology in order to contribute to public and global health.

An expanded model of diabetes care based in an analysis and critique of current approaches

AIMS AND OBJECTIVES

To examine and critique various models guiding the care and education of people with diabetes, to develop more helpful and effective approaches to care. The focus is on relationships and communication between patients and healthcare providers.

BACKGROUND

Many patients are not adhering to the recommended treatments, hence it seems that effective diabetes care is difficult to achieve, particularly for patients of lower socio-economic status, who are disproportionately afflicted. The results are usually devastating, and lead to serious health complications that incisively diminish quality of life for patients with diabetes, frustrate healthcare providers and increase healthcare costs.

DESIGN

Critical review.

METHOD

This paper represents a critical review of various approaches to diabetes care and education. A CINAHL search with relevant key words was carried out and selected exemplary research studies and articles describing and/or evaluating the various approaches to diabetes care and management were examined. Particular attention was paid to how the paradigmatic underpinnings of these approaches construct patient - healthcare provider relationships.

CONCLUSION

The literature revealed that the traditional top-down approaches to care were largely ineffective, while collaborative approaches, based in respect and taking the whole persons and their unique situations into account, were found to be central to good care. Further, an integration of the different kinds of knowledge contained in the various approaches can complement and extend one another.

RELEVANCE TO CLINICAL PRACTICE

Avoiding devastating complications by improving the management of diabetes and overall quality of life of patients is a worthwhile goal. Therefore expanding diabetes care beyond the traditional bio-medical model to develop more effective approaches to care is of interest to all healthcare professionals working in this area.

The impact of gender on the long-term morbidity and mortality of patients with type 2 diabetes receiving structured personal care: a 13 year follow-up study

AIMS/HYPOTHESIS

The aim of this study was to assess gender differences in mortality and morbidity during 13 follow-up years after 6 years of structured personal care in patients with type 2 diabetes mellitus.

METHODS

In the Diabetes Care in General Practice (DCGP) multicentre, cluster-randomised, controlled trial (ClinicalTrials.gov registration no. NCT01074762), 1,381 patients newly diagnosed with type 2 diabetes were randomised to receive 6 years of either structured personal care or routine care. The intervention included regular follow-up, individualised goal setting and continuing medical education of general practitioners participating in the intervention. Patients were re-examined at the end of intervention. This observational analysis followed 970 patients for 13 years thereafter using national registries. Outcomes were all-cause mortality, incidence of diabetes-related death, any diabetes-related endpoint, myocardial infarction, stroke, peripheral vascular disease and microvascular disease.

RESULTS

In women, but not men, a lower HR for structured personal care vs routine care emerged for any diabetes-related endpoint (0.65, p = 0.004, adjusted; 73.4 vs 107.7 events per 1,000 patient-years), diabetes-related death (0.70, p = 0.031; 34.6 vs 45.7), all-cause mortality (0.74, p = 0.028; 55.5 vs 68.5) and stroke (0.59, p = 0.038; 15.6 vs 28.9). This effect was different between men and women for diabetes-related death (interaction p = 0.015) and all-cause mortality (interaction p = 0.005).

CONCLUSIONS/INTERPRETATION

Compared with routine care, structured personal diabetes care reduced all-cause mortality and diabetes-related death in women but not in men. This gender difference was also observed for any diabetes-related outcome and stroke but was not statistically significant after extensive multivariate adjustment. These observational results from a post hoc analysis of a randomised controlled trial cannot be explained by intermediate outcomes like HbA1c alone, but involves complex social and cultural issues of gender. There is a need to rethink treatment schemes for both men and women to gain benefit from intensified treatment efforts.

Experiences of barriers and facilitators to weight-loss in a diet intervention - a qualitative study of women in northern Sweden

Background

There is a lack of research about the experiences of participating in weight-reducing interventions. The aim of this study was to explore barriers and facilitators to weight-loss experienced by participants in a diet intervention for middle-aged to older women in the general population in Northern Sweden.

Method

In the intervention the women were randomised to eat either a Palaeolithic-type diet or a diet according to Nordic Nutrition recommendations for 24 months. A strategic selection was made of women from the two intervention groups as well as from the drop-outs in relation to social class, civil status and age. Thematic structured interviews were performed with twelve women and analysed with qualitative content analyses.

Results

The results showed that the women in the dietary intervention experienced two main barriers – struggling with self (related to difficulties in changing food habits, health problems, lack of self-control and insecurity) and struggling with implementing the diet (related to social relations and project-related difficulties) – and two main facilitators– striving for self-determination (related to having clear goals) and receiving support (from family/friends as well as from the project) – for weight-loss. There was a greater emphasis on barriers than on facilitators.

Conclusion

It is important to also include drop-outs from diet interventions in order to fully understand barriers to weight-loss. A gender-relational approach can bring new insights into understanding experiences of barriers to weight-loss.

Trial registration

ClinicalTrials gov NCT00692536.

Social networks, social capital and chronic illness self-management: a realist review

BACKGROUND

Existing literature on the design of interventions and health policy about self-management have tended to focus on individual-centred definitions of self-care and there is growing recognition of the need to extend consideration beyond individual factors, which determine self-care, to examine wider influences such as the health service, the family and the wider social context.

AIMS

To explore the theoretical and empirical links between social networks, social capital and the self-care practices associated with chronic illness work and management in the context of people's everyday lives.

METHOD

A realist review method was used to search and appraise relevant quantitative and qualitative literature.

FINDINGS

The review findings indicate that social networks play an important part in the management of long-term conditions. We found that social networks tend to be defined narrowly and are primarily used as a way of acknowledging the significance of context. There is insufficient discussion in the literature of the specific types of networks that support or undermine self-care as well as an understanding of the processes involved. This necessitates shifting the emphasis of self-care towards community and network-centred approaches, which may also prove more appropriate for engaging people in socially and economically deprived contexts.

The influence of participant's self-perceived role on metabolic outcomes in a diabetes group education program

We investigated the demographic, biomedical, and perceptional factors influencing HbA(1c) 2 years after baseline in an educational program for persons with type 2 diabetes. Patients (N = 259) participated in a year-long group educational program led by specially trained pharmacists. There was a significant reduction of HbA(1c) (-0.15% unit; p < 0.05) on the group level after 24 months. Answers to open-ended questions on self-perceived role in diabetes management and occasions for testing blood glucose were analyzed qualitatively and used in a regression equation. Belonging to the "active" category of self-perceived role in diabetes management was associated with better outcomes compared to having a "passive" role. In addition, testing blood glucose levels for different purposes identified by the respondents was better than not to test blood glucose levels at all. The influence of these variables was striking; of the range of demographic and biomedical factors tested, only initial HbA(1c) and treatment entered the model.

Lay perceptions of type 2 diabetes in Scotland: bringing health services back in

The growing prevalence of type 2 diabetes is placing Scottish health services under considerable strain. Consequently, diabetes services are undergoing a major process of reorganisation, including the devolvement of routine diabetes care/diabetic review from secondary to primary healthcare settings. This qualitative study was devised to explore newly diagnosed type 2 diabetes patients' perceptions of their disease and the health services they receive at a time when this restructuring of services is taking place. The sample comprised 40 patients resident in Lothian, Scotland, who had diverse experiences of services, some receiving GP-based care only, others having varying contact with hospital diabetes clinics. In-depth interviews were undertaken with patients, three times at six monthly intervals over 1 year, enabling their experiences to be tracked at critical junctures during the post-diagnostic period. Disease perceptions and health service delivery were found to be mutually informing and effecting. Not only did (different types of) health service delivery influence the ways in which patients thought about and self-managed their disease, over time patients' disease perceptions also informed their expectations of, and preferences for, diabetes services. We thus argue that there is a need for a reconceptualisation within the medical social sciences to take into account the context of healthcare and the economic/policy factors that inform health service delivery when looking at patients' disease perceptions. We also discuss the logistical and ethical challenges of drawing upon patients' perspectives, preferences and views in the design and delivery of future health services.

Diagnosis of type 2 diabetes: a qualitative analysis of patients' emotional reactions and views about information provision

Research about diagnosis of chronic illness indicates this is an emotional time for patients. Information provision is especially salient for diabetes management. Yet current orthodoxy suggests that too much information at the time of diagnosis is unhelpful for patients. In this study, we used in-depth interviews with 40 newly diagnosed type 2 diabetic (T2DM) patients in Scotland, to explore their emotional reactions about diagnosis, and their views about information provision at the time of diagnosis. Data were analysed using a thematic approach. Our results showed three main 'routes' to diagnosis: 'suspected diabetes' route; 'illness' route; and 'routine' route. Those within the 'routine' route described the most varied emotional reactions to their diagnosis. We found that most patients, irrespective of their route to diagnosis, wanted more information about diabetes management at the time of diagnosis. We suggest that practitioners would benefit from being sensitive to the route patients follow to diagnosis, and prompt, simple but detailed advice about T2DM management would be helpful for newly diagnosed patients.