Considering the high prevalence of diabetes complications among South Asians in UK, the review by Gupta and Misra (2016) gave the indication that phenotypic characteristics of South Asian such as excess body fat, abdominal adiposity, low muscle fat and hepatic fat make them prone to diabetes mellitus. Practices such as barefoot walking are common to South Asian and this contributes greatly to foot ulcerations in them. However, still robust epidemiological data is needed to improve health outcome in ethnic groups.
August and Sorkin (2011) gave the detail on frequency and dietary response to health-related social support in ethnically diverse sample population and social control is associated with better health behaviors. The randomized controlled trial study on diabetes patient highlight ethnic difference in health related social support and it form designing interventions for ethnic groups to incorporate social network members in their daily diabetes management.
As South Asians living in UK has high risk of type 2 diabetes, the purpose of a cross-sectional research study by Whincup et al. (2010) was to examine the whether the ethnic difference was apparent in childhood. The risk factors for South Indian includes high fat mass index and other adiposity markers, while high fasting insulin was a risk factor in Black Afro-Caribbeans. It revealed that ethnic difference in diabetes precursor following adult health behavior is also high in UK children and certain changes in adult life are necessary for early prevention of diabetes.
As primary research articles have mainly established high susceptibility to type-2 diabetes in South Asian people, there was a need to impact of lifestyle interventions on this group in UK. The trial with impaired glucose tolerance among South Asians in UK revealed modest changes in their weight which acted as a positive factor to prevent risk of diabetes. Hence, simple information related to diet and lifestyle and tailor made intervention can significantly reduce risk of developing diabetes (Bhopal et al. 2014).
Beliefs about diabetes is critical to diabetes self-management and investigation into socio-cultural context of illness beliefs in South Asians revealed fatalistic beliefs about diabetes among them with lack of personal control measures to improve their health outcome. Diabetes management was easier if any family members had the disease, otherwise the overall awareness was low. Hence, socio-cultural context had a dominant influence on interpretation of disease and self-management (Patel et al., 2015). The focus on South Asians was also seen in the research articles by Patel et al. (2015) which revealed the attitude towards insulin acceptance in ethnically diverse population in UK. The belief about the necessity of insulin was questioned and health providers role in critical in making patients understand the necessity of insulin.The relationship between adiposity and diabetes prevalence across ethnic groups in UK Biobank cohorts reveal different obesity cut-offs for South Asian and White population. It reflects lower obesity threshold should be used for ethnic groups (Ntuk et al. 2014). Ethnicity links to prevalence of diabetes is also seen from the literature by Mathur et al. (2017) which explains difference in screening delivery increasing risk of severe diabetes among ethnic groups.
The current UK policy to prevent type to diabetes includes creating integrated strategy for non-communicable disease to convey healthier lifestyle message to population and encourage people to live a healthy diet (National strategy and policy to prevent type 2 diabetes 2017). The evaluation of National Programme in England revealed health coverage was lower than expected, however improvement was seen every year (Robson et al. 2016). A research study reviewing the effectiveness of self-management educational programs for racial ethnic minority groups revealed better results in face-to-face intervention (Ricci-Cabello et al. 2014). The study on effectiveness of screening and treatment policies indicated false screening may hamper the prevention process and this policy are unlikely to have impact on diabetes epidemic Barry, E., (Roberts et al. 2017).
Discussion
The systematic review of 18 research articles after comprehensive analysis of relevant articles based on inclusion and exclusion criteria presented many new insights to determine the facilitators and barrier to diabetes prevention in ethnic groups in UK. Primary research revealed many data revealing the higher complication in South Asian and Afro-Caribbean compared to other groups. Furthermore, the classification of research articles on the basis of key themes revealed factors like lack of understanding about disease and healthy behavior, socio-cultural elements, beliefs and attitude as a common link significantly affecting the self-management of diabetes. The limitations in the approach may help to determine the factors that health care providers can take to reduce prevalence of diabetes in UK.
Conclusion and recommendation
The systematic review of relevant research article from different databases mainly points out to the high rate of complications in South Asians living in UK. Hence, it is necessary to understand the risk factor in this group to prevent the diabetes epidemic in UK. Several research studies also pointed to the barrier in promoting positive health behavior in ethnic group to prevent diabetes. As language barrier and access issues prevent full engagement in prevention of diabetes complication, there is a need to mitigate traditional belief regarding foods and lifestyle practices in vulnerable groups and promote awareness regarding factors leading to diabetes complication among ethnic group. Accessing the varied needs of this group may help to increase acceptability to intervention and reduce the prevalence of diabetes in UK (Johnson et al. 2011). The recommendation to reduce diabetes complication in ethnic groups in UK includes taking steps include educational element in prevention program so that cultural sensitivity are addressed and interventions are made specific to the needs of ethnic groups.
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