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van der Velden AIM, IJpelaar DHT, Chandie Shaw PK, Pijl H, Vink H, van der Vlag J, Rabelink TJ, van den Berg BM. Role of dietary interventions on microvascular health in South-Asian Surinamese people with type 2 diabetes in the Netherlands: A randomized controlled trial. Nutr Diabetes 2024; 14:17. [PMID: 38600065 PMCID: PMC11006941 DOI: 10.1038/s41387-024-00275-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 03/25/2024] [Accepted: 04/03/2024] [Indexed: 04/12/2024] Open
Abstract
BACKGROUND/OBJECTIVES We investigated whether dietary interventions, i.e. a fasting mimicking diet (FMD, Prolon®) or glycocalyx mimetic supplementation (EndocalyxTM) could stabilize microvascular function in Surinamese South-Asian patients with type 2 diabetes (SA-T2DM) in the Netherlands, a patient population more prone to develop vascular complications. SUBJECTS/METHODS A randomized, placebo controlled, 3-arm intervention study was conducted in 56 SA-T2DM patients between 18 and 75 years old, for 3 consecutive months, with one additional follow up measurement 3 months after the last intervention. Sublingual microcirculation was assessed with SDF-imaging coupled to the GlycoCheckTM software, detecting red blood cell velocity, capillary density, static and dynamic perfused boundary region (PBR), and the overall microvascular health score (MVHS). Linear mixed models and interaction analysis were used to investigate the effects the interventions had on microvascular function. RESULTS Despite a temporal improvement in BMI and HbA1c after FMD the major treatment effect on microvascular health was worsening for RBC-velocity independent PBRdynamic, especially at follow-up. Glycocalyx supplementation, however, reduced urinary MCP-1 presence and improved both PBRdynamic and MVHSdynamic, which persisted at follow-up. CONCLUSIONS We showed that despite temporal beneficial changes in BMI and HbA1c after FMD, this intervention is not able to preserve microvascular endothelial health in Dutch South-Asian patients with T2DM. In contrast, glycocalyx mimetics preserves the microvascular endothelial health and reduces the inflammatory cytokine MCP-1. CLINICAL STUDY REGISTRATION NCT03889236.
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Affiliation(s)
- Anouk I M van der Velden
- Department of Internal Medicine (Nephrology), Leiden University Medical Center, Leiden, The Netherlands
- Einthoven Laboratory of Vascular and Regenerative Medicine, LUMC, Leiden, The Netherlands
| | - Daphne H T IJpelaar
- Department of Internal Medicine and Nephrology, Green Heart Hospital, Gouda, The Netherlands
| | - Prataap K Chandie Shaw
- Department of Internal Medicine and Nephrology, Haaglanden Medical Center, The Hague, The Netherlands
| | - Hanno Pijl
- Einthoven Laboratory of Vascular and Regenerative Medicine, LUMC, Leiden, The Netherlands
- Department of Internal Medicine (Endocrinology), LUMC, Leiden, The Netherlands
| | - Hans Vink
- Department of Physiology, Cardiovascular Research Institute Maastricht, Maastricht, The Netherlands
- MicroVascular Health Solutions LLC, Alpine, Utah, USA
| | - Johan van der Vlag
- Department of Nephrology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Ton J Rabelink
- Department of Internal Medicine (Nephrology), Leiden University Medical Center, Leiden, The Netherlands
- Einthoven Laboratory of Vascular and Regenerative Medicine, LUMC, Leiden, The Netherlands
| | - Bernard M van den Berg
- Department of Internal Medicine (Nephrology), Leiden University Medical Center, Leiden, The Netherlands.
- Einthoven Laboratory of Vascular and Regenerative Medicine, LUMC, Leiden, The Netherlands.
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Farhat G, Mellor DD, Sattar N, Harvie M, Issa B, Rutter MK. Effectiveness of lifestyle interventions/culturally bespoke programmes in South Asian ethnic groups targeting weight loss for prevention and/or remission of type 2 diabetes: a systematic review and meta-analysis of intervention trials. J Hum Nutr Diet 2024; 37:550-563. [PMID: 38234263 DOI: 10.1111/jhn.13279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 11/14/2023] [Accepted: 12/21/2023] [Indexed: 01/19/2024]
Abstract
BACKGROUND People from South Asian heritage are at high risk of type 2 diabetes, but there are limited specific strategies to prevent and manage this condition. The aim was to assess the effectiveness of culturally bespoke lifestyle programmes in South Asians that target weight loss for the prevention or remission of type 2 diabetes mellitus (T2DM). METHODS We performed a systematic review and meta-analysis of intervention trials. PubMed, Scopus, MEDLINE (EBSCOhost), CINAHL, PsycINFO and CENTRAL were searched. Human intervention trials (randomised controlled trials and quasi-experimental) investigating the effect of lifestyle interventions on the prevention and remission of T2DM in South Asians were included. Studies including participants at risk of T2DM (prevention trials) and having the disease (remission trials) with duration ≥12 weeks were eligible. For prevention trials, the primary outcome was change in weight (kg) from baseline; for remission trials, it was decrease in HbA1c to non-diabetic levels (HbA1c ≤ 6.5%) without diabetes medications. Prevention trials were separated into (i) lifestyle modification advice and (ii) lifestyle modification advice including a supervised physical activity programme. RESULTS Twenty-four trials were eligible (21 prevention trials and 3 remission trials). In T2DM prevention trials involving only lifestyle modification advice, the mean postintervention difference in weight between intervention and control groups was -0.65 kg (95% confidence interval [CI]: -1.04, -0.26; p = 0.01). Lifestyle modification advice including a physical activity programme was associated with greater decreases in weight: -1.13 kg (95% CI: -2.04, -0.21; p = 0.02). Fasting blood glucose levels were slightly lower in intervention groups for both intervention subtypes, although there was no significant change in HbA1c levels or 2-h plasma glucose levels. Diabetes remission trials showed potential acceptability but were limited in number and involved a small sample size, and some did not include a control group. CONCLUSIONS In South Asians, lifestyle interventions for prevention of T2DM offer only modest impacts on weight and glucose control and will unlikely reduce diabetes incidence. Alternative lifestyle interventions co-designed with members of the communities and aimed at both prevention and remission of T2DM must be urgently considered. Systematic review registration number: PROSPERO CRD42022385174 https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=385174.
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Affiliation(s)
- Grace Farhat
- Faculty of Health and Education, Manchester Metropolitan University, Manchester, UK
| | - Duane D Mellor
- Aston Medical School, Aston University, Birmingham, UK
- Centre for Health and Society, Aston University, Birmingham, UK
| | - Naveed Sattar
- BHF Cardiovascular Research Centre, University of Glasgow, Glasgow, UK
| | - Michelle Harvie
- Prevent Breast Cancer Research Unit, Manchester University Hospital Foundation NHS Trust, Manchester, UK
- UK Division of Cancer Sciences, University of Manchester, Manchester, UK
- NIHR Manchester Biomedical Research Centre, NIHR, Manchester, UK
| | - Basil Issa
- Manchester University NHS Foundation Trust, NIHR Manchester Biomedical Research Centre, Manchester Academic Health Science Centre, Manchester, UK
| | - Martin K Rutter
- Division of Endocrinology, Diabetes and Gastroenterology, Faculty of Biology, Medicine and Health, School of Medical Sciences, University of Manchester, Manchester, UK
- Diabetes, Endocrinology and Metabolism Centre, Manchester, UK
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Farhat G. Polyphenols in obesity and weight management: Are they worth further research? An umbrella review. NUTR BULL 2024. [PMID: 38469993 DOI: 10.1111/nbu.12667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 01/23/2024] [Accepted: 02/12/2024] [Indexed: 03/13/2024]
Abstract
Polyphenols are widely known for their putative antioxidant and anti-inflammatory effects and their potential protective role in several diseases such as type 2 diabetes, cardiovascular disease and cancer. They have also attracted significant interest as 'anti-obesity' agents, although with mechanisms of action that have been exclusively demonstrated in animal and in vitro studies. This umbrella review aims to evaluate current evidence surrounding the role of polyphenols in obesity and weight management and to establish the usefulness of these agents in combatting obesity. A search of systematic reviews and meta-analyses of randomised controlled trials was carried out. Nine systematic reviews (of which eight included a meta-analysis) were included. Evidence of polyphenols' effects on reducing bodyweight is mixed, and where the effects are significant, they are numerically small and unlikely to be of help in reducing bodyweight or preventing weight gain. Future research should focus on establishing the anti-inflammatory and antioxidant effects of polyphenols through well-designed randomised controlled trials. Such research could be more valuable and cost-effective since it has shown potential to improve human health.
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Affiliation(s)
- Grace Farhat
- Faculty of Health and Education, Manchester Metropolitan University, Manchester, UK
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Maynard MJ, Orighoye O, Apekey T, Simpson E, van Dijk M, Atherton E, Blackshaw J, Ells L. Improving adult behavioural weight management services for diverse UK Black Caribbean and Black African ethnic groups: a qualitative study of insights from potential service users and service providers. Front Public Health 2023; 11:1239668. [PMID: 38074747 PMCID: PMC10701265 DOI: 10.3389/fpubh.2023.1239668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 11/08/2023] [Indexed: 12/18/2023] Open
Abstract
Background A significantly higher proportion of UK Black ethnic adults live with overweight or obesity, compared to their White British counterparts. The role of obesity in excess infection rates and mortality from COVID-19 has increased the need to understand if weight management interventions are appropriate and effective for Black ethnic groups. There is a paucity of existing research on weight management services in Black populations, and whether anticipated or experienced institutional and interpersonal racism in the healthcare and more widely affects engagement in these services. Understanding the lived experience of target populations and views of service providers delivering programmes is essential for timely service improvement. Methods A qualitative study using semi-structured interviews was conducted in June-October 2021 among 18 Black African and Black Caribbean men and women interested in losing weight and 10 weight management service providers. Results The results highlighted a positive view of life in the United Kingdom (UK), whether born in the UK or born abroad, but one which was marred by racism. Weight gain was attributed by participants to unhealthy behaviours and the environment, with improving appearance and preventing ill health key motivators for weight loss. Participants relied on self-help to address their overweight, with the role of primary care in weight management contested as a source of support. Anticipated or previously experienced racism in the health care system and more widely, accounted for some of the lack of engagement with services. Participants and service providers agreed on the lack of relevance of existing services to Black populations, including limited culturally tailored resources. Community based, ethnically matched, and flexibly delivered weight management services were suggested as ideal, and could form the basis of a set of recommendations for research and practice. Conclusion Cultural tailoring of existing services and new programmes, and cultural competency training are needed. These actions are required within systemic changes, such as interventions to address discrimination. Our qualitative insights form the basis for advancing further work and research to improve existing services to address the weight-related inequality faced by UK Black ethnic groups.
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Affiliation(s)
- Maria J. Maynard
- School of Health, Leeds Beckett University, Leeds, United Kingdom
- Obesity Institute, Leeds Beckett University, Leeds, United Kingdom
| | - Oritseweyinmi Orighoye
- Bradford Institute for Health Research, University of Bradford, Bradford, United Kingdom
| | - Tanefa Apekey
- School of Health and Related Research, University of Sheffield, Sheffield, United Kingdom
| | - Ellouise Simpson
- School of Health, Leeds Beckett University, Leeds, United Kingdom
| | - Margie van Dijk
- Office for Health Improvement and Disparities, Department of Health and Social Care, London, United Kingdom
| | - Elizabeth Atherton
- Office for Health Improvement and Disparities, Department of Health and Social Care, London, United Kingdom
| | - Jamie Blackshaw
- Office for Health Improvement and Disparities, Department of Health and Social Care, London, United Kingdom
| | - Louisa Ells
- School of Health, Leeds Beckett University, Leeds, United Kingdom
- Obesity Institute, Leeds Beckett University, Leeds, United Kingdom
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Mirza S, Kandasamy S, de Souza RJ, Wahi G, Desai D, Anand SS, Ritvo P. Barriers and facilitators to healthy active living in South Asian families in Canada: a thematic analysis. BMJ Open 2022; 12:e060385. [PMID: 36368751 PMCID: PMC9660572 DOI: 10.1136/bmjopen-2021-060385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVES The study objective was to understand the barriers and facilitators to healthy active living in South Asian families living in Canada. DESIGN Semi-structured interviews of 30-60-minute duration with South Asian women with young families, and analysed using a thematic analytical approach. SETTING Community-dwelling South Asian women interviewed in the home environment or by phone. PARTICIPANTS Fifteen married South Asian women (mean age=34.2 years) living in the Peel region of Ontario, Canada, with at least 1 child under the age of 5 years. The majority of women had immigrated to Canada (13/15), during a 5-10-year interval preceding interviews. RESULTS 57 different codes were derived from 18 interview hours, and further evaluated through member checking. The top three barriers to healthy eating were: (1) not having enough time for healthy food preparation, (2) lack of knowledge about what is healthy eating and (3) viewing healthy eating as a matter of engaging in time limited dieting. These barriers were addressed with: (1) knowledge and awareness of healthy eating, (2) clear goal setting, (3) access to fresh vegetables and fruits and (4) better arrangements and more time for food preparation. The top five barriers to physical activity were: (1) not enough time and energy, (2) competing priorities, (3) lack of childcare, (4) lack of family-engaging exercise and (5) limited access to interesting exercise programming. These barriers were addressed by: (1) experiencing exercise as enjoyable and stress releasing, (2) commitments to walking exercise, (3) use of an electronic exercise-tracking device, (4) offspring exercise supported by spouse and family and (5) success stories about exercise from others. CONCLUSIONS Barriers to healthy active living in South Asian women with young families can be addressed with facilitators that stimulate clear goal setting and healthy food preparation skills, and exercise formats that engage mothers and offspring, with or without exercise tracking.
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Affiliation(s)
- Sabina Mirza
- Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
| | - Sujane Kandasamy
- Department of Health Research Methods, Evidence and Impact, McMaster University, Hamilton, Ontario, Canada
| | - Russell J de Souza
- Department of Health Research Methods, Evidence and Impact, McMaster University, Hamilton, Ontario, Canada
- Population Health Research Institute, Hamilton, Ontario, Canada
| | - Gita Wahi
- Department of Health Research Methods, Evidence and Impact, McMaster University, Hamilton, Ontario, Canada
- Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada
| | - Dipika Desai
- Department of Health Research Methods, Evidence and Impact, McMaster University, Hamilton, Ontario, Canada
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Sonia S Anand
- Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Paul Ritvo
- School of Kinesiology and Health Science, York University, Toronto, Ontario, Canada
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Kandula NR, Patel KM, Lancki N, Welch S, Bouris A, Marquez DX, Liem R, Rastogi M, Roy R, Bharucha H, Bever J, Kwon S. South Asians Active Together (SAATH): Protocol for a multilevel physical activity intervention trial for South Asian American mother and daughter dyads. Contemp Clin Trials 2022; 120:106892. [PMID: 36007709 DOI: 10.1016/j.cct.2022.106892] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 08/11/2022] [Accepted: 08/19/2022] [Indexed: 11/27/2022]
Abstract
South Asian (SA), including Asian Indian and Pakistani Americans, have a high burden of cardiometabolic risk factors and low levels of physical activity (PA). Increasing PA in the U.S. population is a national priority; however, SA American women and girls experience unique barriers to PA that are not addressed by current promotion efforts. To address this gap, our community-based participatory research partnership developed the South Asians Active Together (SAATH) intervention. This study is a two-arm randomized clinical trial to evaluate the effects, mediators, and implementation of the 18-week SAATH intervention. A total of 160 mother-daughter dyads will be randomized in a 1:1 ratio to the SAATH intervention and control groups. The intervention was designed for mother-daughter dyads and targets individual, interpersonal, and family levels through (1) group exercise classes, (2) mother-daughter discussions, and (3) peer group discussions. The intervention targets the environment level through community partner meetings aimed at creating environment changes to enhance PA opportunities for SA women and girls. The control group will receive PA education materials. We hypothesize that dyads who receive the intervention will have significantly greater increases in moderate- and vigorous-intensity PA (MVPA) from baseline to 4 months, compared to the control group. MVPA will be measured at 12 months in intervention participants to examine if changes are sustained. A process evaluation will use the reach, effectiveness, adoption, implementation, and maintenance (RE-AIM) framework. This study will fill knowledge gaps about the effectiveness and implementation of culturally adapted, community-based PA interventions for SA women and girls.
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Affiliation(s)
- Namratha R Kandula
- Feinberg School of Medicine, Division of General Internal Medicine, Northwestern University, Chicago, IL, United States; Feinberg School of Medicine, Department of Preventive Medicine, Northwestern University, Chicago, IL, United States.
| | - Kajal M Patel
- Feinberg School of Medicine, Division of General Internal Medicine, Northwestern University, Chicago, IL, United States.
| | - Nicola Lancki
- Feinberg School of Medicine, Department of Preventive Medicine, Northwestern University, Chicago, IL, United States.
| | - Sarah Welch
- Feinberg School of Medicine, Buehler Center for Health Policy and Economics, Northwestern University, Chicago, IL, United States.
| | - Alida Bouris
- School of Social Service Administration, University of Chicago, Chicago, IL, United States.
| | - David X Marquez
- Department of Kinesiology and Nutrition, Center for Research on Health and Aging, University of Illinois at Chicago, Chicago, IL, United States.
| | - Robert Liem
- Center for Cancer and Blood Disorders, Ann & Robert H. Lurie Children's Hospital of Chicago, Pediatrics, Chicago, IL, United States; Feinberg School of Medicine, Department of Pediatrics, Northwestern University, Chicago, IL, United States.
| | - Mudita Rastogi
- The Family Institute, Northwestern University, Chicago, IL, United States.
| | - Rency Roy
- Feinberg School of Medicine, Division of General Internal Medicine, Northwestern University, Chicago, IL, United States.
| | - Himali Bharucha
- Metropolitan Asian Family Services, Chicago, IL, United States.
| | | | - Soyang Kwon
- Division of Pediatric Surgery, Feinberg School of Medicine, Ann and Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, United States.
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The acceptability and effect of a culturally-tailored dance intervention to promote physical activity in women of South Asian origin at risk of diabetes in the Netherlands—A mixed-methods feasibility study. PLoS One 2022; 17:e0264191. [PMID: 35213598 PMCID: PMC8880860 DOI: 10.1371/journal.pone.0264191] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Accepted: 02/04/2022] [Indexed: 11/19/2022] Open
Abstract
Objective Populations of South Asian (SA) origin are at high risk of type 2 diabetes (T2D) and related complications. Analysis of T2D prevention interventions for these populations show that limited attention has been given to facilitating increased physical activity (PA) in a culturally appropriate manner. The aim of this feasibility study was to identify whether culturally tailored dance is acceptable to women of SA origin, and whether it may have an effect on PA and PA-related social cognitive determinants. Methods A community-based culturally tailored dance intervention choreographed to Bollywood music was evaluated among 26 women of SA origin in the Netherlands for 10 weeks, 2 times per week. This feasibility study was conducted as a before-after, mixed-methods study, combining data from focus groups, individual interviews, questionnaires and accelerometers. Results The majority of participants were in the age of 50–59 years and at moderate-to-high T2D risk. There was high attendance (73%), low drop out (12%) and high satisfaction scores for various program components. Key reasons for participation were the cultural appropriateness, in particular the combination of historically and emotionally embedded Indian music and dance, and the non-competitive nature of the intervention. On average, in each of the 19 one-hour sessions, participants spent 30.8 minutes in objectively assessed light intensity PA, 14.1 minutes in moderate intensity PA and 0.3 minutes in vigorous PA, and took 2,100 steps during a session. At follow-up, total moderate-to-vigorous PA increased by 7.8 minutes per day (95%CI: 3.1, 12.5) and daily steps increased by 784 (95%CI: 173, 1394), with a concomitant reduction in light PA of 12 minutes per day (95%CI: -21.9, -2.2). Positive shifts in some PA-behavioral social cognitive determinants and no negative side-effects were observed. Conclusions Bollywood Dance appears to be a feasible, culturally acceptable and potentially effective approach to increase PA in SA women in the Netherlands. A pilot cluster RCT is needed to confirm these initial findings on effectiveness.
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Agyemang C, van der Linden EL, Bennet L. Type 2 diabetes burden among migrants in Europe: unravelling the causal pathways. Diabetologia 2021; 64:2665-2675. [PMID: 34657183 PMCID: PMC8563673 DOI: 10.1007/s00125-021-05586-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 08/17/2021] [Indexed: 12/16/2022]
Abstract
European populations are ethnically and culturally diverse due to international migration. Evidence indicates large ethnic inequalities in the prevalence of type 2 diabetes. This review discusses the burden of type 2 diabetes and its related complications, and the potential explanatory mechanisms among migrants in Europe. The current available data suggest that the rate of type 2 diabetes is higher in all migrant groups and that they develop this disease at an earlier age than the host European populations. The level of diabetes awareness among migrant populations is high, but glycaemic control remains suboptimal compared with Europeans. The culturally adapted lifestyle modification intervention trials to prevent type 2 diabetes mainly focus on South Asian adults in Europe. Diabetes-related microvascular and macrovascular complications remain a major burden among migrant populations in Europe. Earlier studies found higher mortality rates among migrants, but recent studies seem to suggest a shifting trend in favour of first-generation migrants. However, the extent of the burden of type 2 diabetes varies across migrant groups and European countries. Despite the higher burden of type 2 diabetes among migrants, the key underlying factors are not well understood mainly due to limited investment in basic science research and development of prospective cohort studies. We hypothesise that the underlying risk factors for the high burden of type 2 diabetes and its related complications in migrants are multifaceted and include pre-migration factors, post-migration factors and genetic predispositions. Given the multi-ethnic nature of the current European population, there is a clear need for investment in research among migrant populations to gain insight into factors driving the high burden of type 2 diabetes and related complications to facilitate prevention and treatment efforts in Europe.
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Affiliation(s)
- Charles Agyemang
- Department of Public & Occupational Health, Amsterdam Public Health Research Institute, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, the Netherlands.
| | - Eva L van der Linden
- Department of Public & Occupational Health, Amsterdam Public Health Research Institute, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, the Netherlands
- Department of Vascular Medicine, Amsterdam Cardiovascular Sciences, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, the Netherlands
| | - Louise Bennet
- Department of Clinical Sciences in Malmö, Lund University, Malmö, Sweden
- Clinical Research and Trial Centre, Lund University Hospital, Lund, Sweden
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Jayawardena R, Sooriyaarachchi P, Misra A. Abdominal obesity and metabolic syndrome in South Asians: prevention and management. Expert Rev Endocrinol Metab 2021; 16:339-349. [PMID: 34586004 DOI: 10.1080/17446651.2021.1982381] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 09/15/2021] [Indexed: 12/12/2022]
Abstract
INTRODUCTION The prevalence of metabolic syndrome (MetS) and abdominal obesity are escalating in South Asian countries. It is well established that MetS is associated with increased risk for both Type 2 diabetes mellitus and cardiovascular diseases. South Asians have an increased risk of MetS due to a variety of factors including unhealthy lifestyle and their unique body composition. AREAS COVERED In this review, we discuss the prevalence, associated risk factors, and evidence-based preventive and curative strategies for MetS and abdominal obesity in South Asians. A literature search through PubMed®, Web of Science®, and Scopus® was performed for studies published before 31st April 2021. A combination of the following keywords was used with the names of the individual South Asian countries: 'metabolic syndrome,' 'syndrome X,' 'abdominal obesity,' 'central obesity,' 'visceral obesity,' 'prevention,' and 'management.' EXPERT OPINION According to current evidence, MetS and abdominal obesity are highly prevalent among South Asians. Several risk factors, such as lifestyle, socio-demography, cultural, and body composition, are associated with MetS. Limited research shows culturally tailored lifestyle interventions are effective in preventing and managing MetS and abdominal obesity among South Asians.
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Affiliation(s)
- Ranil Jayawardena
- Department of Physiology, Faculty of Medicine, University of Colombo, Colombo, Sri Lanka
- School of Exercise & Nutrition Sciences, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Piumika Sooriyaarachchi
- School of Exercise & Nutrition Sciences, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Anoop Misra
- Fortis-C-DOC Centre of Excellence for Diabetes, Metabolic Diseases and Endocrinology, Chirag Enclave, New Delhi, India
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Davidson EM, Krasuska M, Jenum AK, Gill JMR, Beune E, Stronks K, van Valkengoed IGM, Diaz E, Sheikh A. Developing a realist informed framework for cultural adaptation of lifestyle interventions for the prevention of type 2 diabetes in South Asian populations in Europe. Diabet Med 2021; 38:e14584. [PMID: 33838051 DOI: 10.1111/dme.14584] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 03/14/2021] [Accepted: 04/08/2021] [Indexed: 01/04/2023]
Abstract
AIMS Selected lifestyle interventions proven effective for White-European populations have been culturally adapted for South Asian populations living in Europe, who are at higher risk of type 2 diabetes. However, a limited theoretical basis underpins how cultural adaptations are believed to augment intervention effectiveness. We undertook a realist review to synthesise existing literature on culturally adapted type 2 diabetes prevention interventions, to develop a framework that shows 'how' cultural adaptation works, for 'whom' and in 'what contexts'. METHODS We followed the stepped methodological approach of realist review. Our work concluded a European-wide project (EuroDHYAN), and core studies were identified from the preceding EuroDHYAN reviews. Data were extracted, coded into themes and synthesised to create 'Context-Mechanism-Outcome' configurations and to generate a refined explanatory framework. RESULTS We identified eight core intervention papers. From this evidence, and supporting literature, we examined the 'Team' domain of cultural adaptation and identified a mechanism of shared cultural identity which we theorised as contributing to strong team-participant relationships. We also identified four key contexts which influenced intervention outcomes: 'research setting' and 'heterogeneous populations' (intrinsic to the intervention) and 'broader environment' and 'socio-cultural stress' (extrinsic barriers). CONCLUSIONS This work instigates research into the mechanisms of cultural adaptation which, if pursued, will allow a more nuanced understanding of how to apply adaptations, and for whom. In practice we recommend greater consideration of heterogeneous and intersecting population characteristics; how intervention design can safeguard sustainability; and how the four key contexts identified influence how, and whether, these interventions work.
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Affiliation(s)
| | | | - Anne Karen Jenum
- General Practice Research Unit (AFE), Department of General Practice, Institute of Health and Society, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Jason M R Gill
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
| | - Erik Beune
- Amsterdam UMC, Department of Public and Occupational Health, University of Amsterdam, Amsterdam Public Health Research Institute, Amsterdam, The Netherlands
| | - Karien Stronks
- Amsterdam UMC, Department of Public and Occupational Health, University of Amsterdam, Amsterdam Public Health Research Institute, Amsterdam, The Netherlands
| | - Irene G M van Valkengoed
- Amsterdam UMC, Department of Public and Occupational Health, University of Amsterdam, Amsterdam Public Health Research Institute, Amsterdam, The Netherlands
| | - Esperanza Diaz
- Department for Global Public Health and Primary Care, Faculty of Medicine, University of Bergen, Bergen, Norway
| | - Aziz Sheikh
- Usher Institute, University of Edinburgh, Edinburgh, UK
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Vaz CL, Carnes N, Pousti B, Zhao H, Williams KJ. A randomized controlled trial of an innovative, user-friendly, interactive smartphone app-based lifestyle intervention for weight loss. Obes Sci Pract 2021; 7:555-568. [PMID: 34631134 PMCID: PMC8488442 DOI: 10.1002/osp4.503] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Revised: 01/29/2021] [Accepted: 02/21/2021] [Indexed: 12/12/2022] Open
Abstract
OBJECTIVES Most electronically delivered lifestyle interventions are labor intensive, requiring logging onto websites and manually recording activity and diet. Cumbersome technology and lack of a human coach may have contributed to the limitations of prior interventions. In response, the current program of research created a comprehensive electronically delivered lifestyle intervention using a user-friendly, interactive, smartphone app-based model, and evaluated it in a randomized controlled trial. METHODS Twenty-eight adults, body mass index 25-42 kg/m2, with smartphones and sedentary jobs, were randomized to the intervention, along with conventional outpatient weight-management visits every 3 months, or to a wait-listed control group that received only weight-management visits. The intervention included wearable activity trackers, smartscales, food photography logs, physician-driven app-based behavioral coaching, and peer support via the app. The prespecified primary outcome was a comparison of change in weight in kilograms, in the intervention versus control group at 6 months. RESULTS At 6 months, the intervention group experienced a statistically significant weight change of -7.16 ± 1.78 kg (mean ± SE, 95% CI -11.05 to -3.26, p < 0.01), which differed from the weight change in controls by -4.16 ± 2.01 kg (95% CI -8.29 to -0.02, p < 0.05, prespecified primary outcome). Weight change in the control group was -3.00 ± 1.05 kg (95% CI -5.27 to -0.73, p < 0.05). Waist circumference and hemoglobin A1c significantly improved (intervention vs. control: p < 0.01, p < 0.05, respectively, prespecified secondary outcomes). Weight change in the intervention group correlated with numbers of food photographs participants shared (rho = -0.86, p < 0.01), numbers of their text messages (rho = -0.80, p < 0.01), number of times and days each participant stepped on the smartscale (rho = -0.73, p < 0.01; rho = -0.608, p < 0.05, respectively), and mean daily step counts (rho = -0.55, p < 0.05). CONCLUSION This app-based electronically delivered lifestyle intervention produced statistically significant, clinically meaningful weight loss and improved metabolic health. Engagement with the intervention correlated strongly with weight loss. Given the limited sample size, larger and longer studies of this intervention are needed.
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Affiliation(s)
- Cherie Lisa Vaz
- Lewis Katz School of Medicine at Temple UniversityPhiladelphiaPennsylvaniaUSA
- Section of Endocrinology, Diabetes and MetabolismTemple University HospitalPhiladelphiaPennsylvaniaUSA
- Temple Faculty Practice Plan (TFPP)PhiladelphiaPennsylvaniaUSA
| | - Nicholas Carnes
- Lewis Katz School of Medicine at Temple UniversityPhiladelphiaPennsylvaniaUSA
| | - Bobak Pousti
- Lewis Katz School of Medicine at Temple UniversityPhiladelphiaPennsylvaniaUSA
| | - Huaqing Zhao
- Lewis Katz School of Medicine at Temple UniversityPhiladelphiaPennsylvaniaUSA
| | - Kevin Jon Williams
- Lewis Katz School of Medicine at Temple UniversityPhiladelphiaPennsylvaniaUSA
- Section of Endocrinology, Diabetes and MetabolismTemple University HospitalPhiladelphiaPennsylvaniaUSA
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12
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Weber MB, Gujral UP, Jagannathan R, Shah M. Lifestyle Interventions for Diabetes Prevention in South Asians: Current Evidence and Opportunities. Curr Diab Rep 2021; 21:23. [PMID: 34097137 DOI: 10.1007/s11892-021-01393-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/28/2021] [Indexed: 12/16/2022]
Abstract
PURPOSE OF REVIEW This review summarizes the burden of diabetes in South Asian populations and reviews recent evidence for diabetes prevention through lifestyle modification among South Asians worldwide. We indicate important gaps in the current literature and point to opportunities for additional research in this area. RECENT FINDINGS Randomized, controlled, efficacy studies and implementation research show that lifestyle intervention can be an effective, cost-effective, and feasible method for reducing diabetes risk, improving cardiometabolic health, and improving lifestyle behaviors in South Asian populations, a population at high diabetes risk and elevated rates of diabetes risk factors. Additional research is needed to address diabetes risk reduction in normal-weight South Asians and individuals with impaired fasting glucose; improve community-level implementation, individual uptake, and dissemination of proven programs; and assess long-term outcomes of interventions.
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Affiliation(s)
- Mary Beth Weber
- Hubert Department of Global Health, Rollins School of Public Health, Emory University, 1518 Clifton Road, NE, Atlanta, GA, 30322, USA.
| | - Unjali P Gujral
- Hubert Department of Global Health, Rollins School of Public Health, Emory University, 1518 Clifton Road, NE, Atlanta, GA, 30322, USA
| | - Ram Jagannathan
- Division of Hospital Medicine, School of Medicine, Emory University School of Medicine, Atlanta, GA, USA
| | - Megha Shah
- Department of Family and Preventive Medicine, Emory University School of Medicine, Atlanta, GA, USA
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Nutrition and physical activity interventions for the general population with and without cardiometabolic risk: a scoping review. Public Health Nutr 2021; 24:4718-4736. [PMID: 34030758 DOI: 10.1017/s1368980021002184] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
OBJECTIVE The objective of this scoping review was to examine the research question: In the adults with or without cardiometabolic risk, what is the availability of literature examining interventions to improve or maintain nutrition and physical activity-related outcomes? Sub-topics included: (1) behaviour counseling or coaching from a dietitian/nutritionist or exercise practitioner, (2) mobile applications to improve nutrition and physical activity and (3) nutritional ergogenic aids. DESIGN The current study is a scoping review. A literature search of the Medline Complete, CINAHL Complete, Cochrane Database of Systematic Reviews and other databases was conducted to identify articles published in the English language from January 2005 until May 2020. Data were synthesised using bubble charts and heat maps. SETTING Out-patient, community and workplace. PARTICIPANTS Adults with or without cardiometabolic risk factors living in economically developed countries. RESULTS Searches resulted in 19 474 unique articles and 170 articles were included in this scoping review, including one guideline, thirty systematic reviews (SR), 134 randomised controlled trials and five non-randomised trials. Mobile applications (n 37) as well as ergogenic aids (n 87) have been addressed in several recent studies, including SR. While primary research has examined the effect of individual-level nutrition and physical activity counseling or coaching from a dietitian/nutritionist and/or exercise practitioner (n 48), interventions provided by these practitioners have not been recently synthesised in SR. CONCLUSION SR of behaviour counseling or coaching provided by a dietitian/nutritionist and/or exercise practitioner are needed and can inform practice for practitioners working with individuals who are healthy or have cardiometabolic risk.
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Gamification for Family Engagement in Lifestyle Interventions: A Systematic Review. PREVENTION SCIENCE : THE OFFICIAL JOURNAL OF THE SOCIETY FOR PREVENTION RESEARCH 2021; 22:831-844. [PMID: 33786746 DOI: 10.1007/s11121-021-01214-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/01/2021] [Indexed: 10/21/2022]
Abstract
The majority of chronic conditions that plague the USA are modifiable by lifestyle change. Lifestyle interventions that incorporate family members for social support and that use game design elements to engage family members have the potential to improve upon traditional interventions, which have largely been unsustainable. Determining the populations where family member support in a lifestyle intervention are present and the extent of gamification of lifestyle intervention components that engage these family members is an important and underexplored area of work. A systematic review of lifestyle interventions involving family members were reviewed for game design elements using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) framework. Game design elements related to engaged learning and motivational affordances from previous literature were included. Sixty-one studies met inclusion criteria. These studies reported on 50 independent interventions that were reviewed. Thirty-one of these interventions addressed lifestyle in those with a chronic condition, and 19 addressed lifestyle in those at high risk for chronic conditions. The majority of the lifestyle interventions included at least one game design element, yet overall there were limited elements utilized together. Compared with successful gamified programs that have greatly impacted a population's health behaviors, there were relatively a limited number of elements reported, particularly those that support social relatedness, such as meaningful storylines. Meaningfulness of the game design elements chosen and their arrangement was not apparent. Technology was under-utilized as a potential modality for intervention component delivery. Developing products to train researchers to properly apply game design elements to intervention components, as well as test their effectiveness, are areas for future research.
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Aein A, Omidi N, Khatami F, Samat S, Khorgami MR. Development, Implementation, and Evaluation of an Educational Package to Control the Biomedical Profile of Metabolic Syndrome. Int J Prev Med 2021; 12:31. [PMID: 34249280 PMCID: PMC8218797 DOI: 10.4103/ijpvm.ijpvm_434_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 08/29/2020] [Accepted: 11/27/2020] [Indexed: 11/19/2022] Open
Abstract
Background: Unhealthy lifestyle behaviors are a major concern in the development of metabolic syndrome (MetS). This study aimed to develop, implement, and evaluate a lifestyle education package as a strategy to control the biomedical components of MetS Methods: A total of 72 women and men (aged 18–68 y) with MetS were selected through randomized sampling. They were classified into 2 groups: an intervention group that received a lifestyle educational package with close follow-ups and a control group that received only usual care. Anthropometric indices, blood pressure, lipid profiles, and fasting blood sugar were assessed at baseline and after 3 months. Results: The lifestyle-modification program was associated with a modest weight loss (2 ± 0.4 kg; P < 0.001), a significant reduction in waist circumference (2.3 ± 0.9 cm; P < 0.001) and the hip circumference (1 ± 0.3 cm; P < 0.001), and a sharp decrease in diastolic blood pressure (5.3 ± 1.4 mm Hg; P < 0.001), compared with the baseline values in the intervention group. Additionally, according to the one-way MANOVA analysis, 33.8% of the changes in MetS components were attributable to the educational intervention (P < 0.001, F = 5.27). Conclusions: Improvement in lipid profile and anthropometric measures suggest that a lifestyle package based on multivariable health education is an acceptable method.
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Affiliation(s)
- Afsaneh Aein
- Department of Health Education and Health Promotion, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | - Negar Omidi
- Department of Cardiology, Tehran Heart Center, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Farnaz Khatami
- Department of Community Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Shahed Samat
- Department of Family Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Rafie Khorgami
- Department of Pediatric Cardiology, Rajaie Cardiovascular Medical and Research Center, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
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Weight Management Interventions for Adults With Overweight or Obesity: An Evidence Analysis Center Scoping Review. J Acad Nutr Diet 2020; 121:1855-1865. [PMID: 33069660 DOI: 10.1016/j.jand.2020.07.022] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 06/30/2020] [Accepted: 07/21/2020] [Indexed: 12/26/2022]
Abstract
The objectives of this evidence scoping review were to identify and characterize studies investigating weight management interventions provided by a registered dietitian nutritionist or international equivalent (RDN) among adults with overweight or obesity. A medical librarian conducted an electronic literature search in 6 databases-MEDLINE (Ovid), Embase (Ovid), PyscINFO (Ovid), Cochrane CENTRAL (Ovid), Cochrane Database of Systematic Reviews (Ovid), and CINAHL (Ebsco). Except for narrative review, gray literature, and case study or report, all types of peer-reviewed articles published between January 2008 and April 26, 2019 were eligible. Two content advisors, who are experts in adult weight management, guided the process and reviewed the search plan and findings. The literature search resulted in 30,551 records with 16 additional records identified through other sources. A total of 29,756 records were excluded during the first round of screening due to duplication or irrelevancy. Of the 811 full-text articles that were screened, 139 met the criteria and were included. Approximately 51% and 43% of the studies were conducted in the community setting and in the United States or Canada, respectively. Over 97% of the studies were clinical or quasi-experimental trials. A total of 6 different intervention delivery modes were reported, which resulted in 22 combinations of the modes of delivery. RDNs delivered the weight management intervention (especially the nutrition component) in all studies, but some (61%) also involved an interdisciplinary team to deliver other components of the intervention. The average length of the intervention was about 10 months with a follow-up that ranged from 0 to 9 years. The commonly reported outcomes were anthropometrics, endocrine, and cardiovascular measures; dietary intake; and physical activity. Based on the scoping review, there were systematic reviews and evidence-based practice guidelines on weight management interventions but none of them met the a priori inclusion or exclusion criteria. Therefore, it would be beneficial to conduct a systematic review and develop an evidence-based practice guideline on adult weight management interventions provided by an RDN to guide practitioners and to evaluate their effects on health and nutrition-related outcomes.
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Saeed S, Kanaya AM, Bennet L, Nilsson PM. Cardiovascular risk assessment in South and Middle-East Asians living in the Western countries. Pak J Med Sci 2020; 36:1719-1725. [PMID: 33235604 PMCID: PMC7674869 DOI: 10.12669/pjms.36.7.3292] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Nearly a quarter of the world population lives in the South Asian region (India, Pakistan, Bangladesh, Sri Lanka, Nepal, Bhutan, and the Maldives). Due to rapid demographic and epidemiological transition in these countries, the burden of non-communicable diseases is growing, which is a serious public health concern. Particularly, the prevalence of pre-diabetes, diabetes and atherosclerotic cardiovascular disease (CVD) is increasing. South Asians living in the West have also substantially higher risk of CVD and mortality compared with white Europeans and Americans. Further, as a result of global displacement over the past three decades, Middle-Eastern immigrants now represent the largest group of non-European immigrants in Northern Europe. This vulnerable population has been less studied. Hence, the aim of the present review was to address cardiovascular risk assessment in South Asians (primarily people from India, Pakistan and Bangladesh), and Middle-East Asians living in Western countries compared with whites (Caucasians) and present results from some major intervention studies. A systematic search was conducted in PubMed to identify major cardiovascular health studies of South Asian and Middle-Eastern populations living in the West, relevant for this review. Results indicated an increased risk of CVD. In conclusion, both South Asian and Middle-Eastern populations living in the West carry significantly higher risk of diabetes and CVD compared with native white Europeans. Lifestyle interventions have been shown to have beneficial effects in terms of reduction in the risk of diabetes by increasing insulin sensitivity, weight loss as well as better glycemic and lipid control.
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Affiliation(s)
- Sahrai Saeed
- Sahrai Saeed, Department of Heart Disease, Haukeland University Hospital, Bergen, Norway
| | - Alka M Kanaya
- Alka M. Kanaya, Department of Medicine and Epidemiology and Biostatistics, University of California, San Francisco, CA, USA
| | - Louise Bennet
- Louise Bennet, Department of Clinical Sciences, Family Medicine, Lund University Malmo, Sweden
| | - Peter M Nilsson
- Peter M Nilsson, Department of Clinical Sciences, Lund University, Skane University Hospital, Malmo, Sweden
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18
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Visaria A, Dharamdasani T, Gaur S, Ghoshal B, Singh V, Mathur S, Varghese C, Demissie K. Effectiveness of a Cultural Stroke Prevention Program in the United States-South Asian Health Awareness About Stroke (SAHAS). J Immigr Minor Health 2020; 23:747-754. [PMID: 32813225 DOI: 10.1007/s10903-020-01071-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
There are few stroke education programs focused on the South Asian population in the United States. The South Asian Health Awareness about Stroke (SAHAS) program was developed to provide culturally appropriate stroke education to South Asians from 2014 to 2017. Participants recruited for the SAHAS program were educated through a uniquely developed, culturally-specific, educational presentation. Each participant was asked to complete identical educational questionnaires both before (pre-) and after (post-) the intervention, which were then scored and evaluated. Overall, the 357 participants who completed the SAHAS program had a significant, modest 9% improvement in questionnaire score (p < 0.0001). After adjusting for confounders, those ≤ 60 years had a 2.9-point greater increase in score than those > 60 (p < 0.0001). Having programs targeted and developed for specific minority groups with an emphasis on familial commitment and active participation may aid in raising awareness and reducing the elevated adverse stroke outcomes in South Asians.
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Affiliation(s)
- Aayush Visaria
- South Asian Total Health Initiative, Rutgers Robert Wood Johnson Medical School, 89 French Street, New Brunswick, NJ, 08901, USA.
| | - Tina Dharamdasani
- South Asian Total Health Initiative, Rutgers Robert Wood Johnson Medical School, 89 French Street, New Brunswick, NJ, 08901, USA
| | - Sunanda Gaur
- South Asian Total Health Initiative, Rutgers Robert Wood Johnson Medical School, 89 French Street, New Brunswick, NJ, 08901, USA.
| | - Bishakha Ghoshal
- South Asian Total Health Initiative, Rutgers Robert Wood Johnson Medical School, 89 French Street, New Brunswick, NJ, 08901, USA
| | - Varsha Singh
- South Asian Total Health Initiative, Rutgers Robert Wood Johnson Medical School, 89 French Street, New Brunswick, NJ, 08901, USA
| | - Shailja Mathur
- South Asian Total Health Initiative, Rutgers Robert Wood Johnson Medical School, 89 French Street, New Brunswick, NJ, 08901, USA.,Department of Family and Community Health Sciences, Rutgers University, New Brunswick, NJ, USA
| | - Christina Varghese
- South Asian Total Health Initiative, Rutgers Robert Wood Johnson Medical School, 89 French Street, New Brunswick, NJ, 08901, USA
| | - Kitaw Demissie
- Department of Epidemiology, Rutgers School of Public Health, Piscataway, NJ, USA.,Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, USA
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Kandula NR, Bernard V, Dave S, Ehrlich-Jones L, Counard C, Shah N, Kumar S, Rao G, Ackermann R, Spring B, Siddique J. The South Asian Healthy Lifestyle Intervention (SAHELI) trial: Protocol for a mixed-methods, hybrid effectiveness implementation trial for reducing cardiovascular risk in South Asians in the United States. Contemp Clin Trials 2020; 92:105995. [PMID: 32220632 PMCID: PMC8011000 DOI: 10.1016/j.cct.2020.105995] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 03/17/2020] [Accepted: 03/22/2020] [Indexed: 10/24/2022]
Abstract
Intensive lifestyle interventions targeting diet and physical activity are recommended for reducing atherosclerotic cardiovascular disease (ASCVD) risk in adults. However, existing interventions often do not reach immigrant populations because of a mismatch between the social, cultural, and environmental context of immigrants and Western bio behavioral models which underpin evidence-based lifestyle interventions. The South Asian Healthy Lifestyle Intervention (SAHELI) study is a type 1 hybrid design randomized controlled trial aimed at reducing ASCVD risk in South Asian Americans, a group at higher ASCVD risk than whites and other Asian Americans. The objective is to evaluate the clinical effectiveness and implementation potential of a community-based, culturally-adapted lifestyle intervention for South Asian adults. Participants (n = 550) will be randomized to printed healthy lifestyle education materials or SAHELI, a group-based lifestyle change program that includes weekly classes for 16 weeks and 4 booster classes though month 11. SAHELI integrates evidence-based behavior change strategies with culturally-adapted strategies and group motivational interviewing to improve diet, physical activity, and stress management. Follow-up assessments will occur at 6 and 12 months. We hypothesize that the SAHELI intervention group will have greater improvements in clinical ASCVD risk factors (weight, blood pressure, glycated hemoglobin, and lipids), physical activity, and psychosocial outcomes than the print material group at 6- and 12- months. We will use mixed-methods to examine SAHELI's potential for reach, adoption, implementation, and maintenance from the perspective of multiple stakeholders. This study offers the potential to increase the reach and effectiveness of evidence-based lifestyle interventions for South Asian adults at increased risk for ASCVD.
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Affiliation(s)
- Namratha R Kandula
- Feinberg School of Medicine, Division of General Internal Medicine, Northwestern University, Chicago, IL, United States; Feinberg School of Medicine, Department of Preventive Medicine, Northwestern University, Chicago, IL, United States.
| | - Veronica Bernard
- Feinberg School of Medicine, Division of General Internal Medicine, Northwestern University, Chicago, IL, United States.
| | - Swapna Dave
- Feinberg School of Medicine, Division of General Internal Medicine, Northwestern University, Chicago, IL, United States.
| | - Linda Ehrlich-Jones
- Feinberg School of Medicine, Department of Physical Medicine & Rehabilitation, Northwestern University, Chicago, IL, United States; Shirley Ryan AbilityLab, Chicago, IL, United States.
| | | | - Nirav Shah
- Northshore University HealthSystem, Skokie Hospital, Skokie, IL, United States.
| | - Santosh Kumar
- Metropolitan Asian Family Services, Chicago, IL, United States.
| | - Goutham Rao
- Case Western Reserve University, Cleveland, OH, United States.
| | - Ronald Ackermann
- Feinberg School of Medicine, Division of General Internal Medicine, Northwestern University, Chicago, IL, United States.
| | - Bonnie Spring
- Feinberg School of Medicine, Department of Preventive Medicine, Northwestern University, Chicago, IL, United States.
| | - Juned Siddique
- Feinberg School of Medicine, Department of Preventive Medicine, Northwestern University, Chicago, IL, United States.
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Weber MB, Hennink MM, Narayan KMV. Tailoring lifestyle programmes for diabetes prevention for US South Asians. Fam Med Community Health 2020; 8:e000295. [PMID: 32341773 PMCID: PMC7174025 DOI: 10.1136/fmch-2019-000295] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Objective The purpose of this study was to develop and test the feasibility of a culturally tailored Diabetes Prevention Programme (DPP) for US South Asians, a large population with high diabetes risk. Design The South Asian Health and Prevention Education (SHAPE) study included: (1) focus group discussions with South Asian adults to understand views of lifestyle behaviours and diabetes prevention; (2) modification of the US DPP for South Asians and (3) a pilot, pre–post study to test the feasibility and impact of delivering the culturally tailored programme. Setting The study was conducted in Atlanta, Georgia, USA. Focus group discussions and intervention classes were held at locations within the community (eg, South Asian restaurants, a public library, university classrooms, a South Asian owned physical therapy studio). Participants The focus group discussions (n=17 with 109 individuals) included adults aged 25 years of older who self-identified as South Asian. Groups were stratified by age (25–40 years or older than 40 years) and sex. The SHAPE pilot study included 17 (76.5% male with a mean age of 46.9±12 years) South Asian adults aged 25 years or older with pre-diabetes and body mass index (BMI) >22 kg/m2. Results Formative data from 17 focus group discussions and a community board guided the modification of the DPP curriculum to reflect cultural food preferences and include tools to leverage social support, create a stronger foundation in exercise and overcome culturally specific barriers. The SHAPE pilot study included 17 South Asian adults with pre-diabetes and BMI >22 kg/m2. There were positive changes in participants’ weight, waist circumference, blood pressure, plasma lipids, HbA1c and other cardiometabolic markers postintervention and 55% of participants regressed to normoglycaemia. Conclusion These results provide important information on the barriers faced by US South Asians in participating in ‘standard’ lifestyle change programs, indicate the feasibility of culturally tailored programmes and show positive impact of a culturally tailored programme for diabetes prevention in the South Asian population.
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Affiliation(s)
- Mary Beth Weber
- Hubert Department of Global Health, Emory University, Atlanta, Georgia, USA
| | - Monique M Hennink
- Hubert Department of Global Health, Emory University, Atlanta, Georgia, USA
| | - K M Venkat Narayan
- Hubert Department of Global Health, Emory University, Atlanta, Georgia, USA
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Kivelä J, Wikström K, Virtanen E, Georgoulis M, Cardon G, Civeira F, Iotova V, Karuranga E, Ko W, Liatis S, Makrilakis K, Manios Y, Mateo-Gallego R, Nanasi A, Rurik I, Tankova T, Tsochev K, Van Stappen V, Lindström J. Obtaining evidence base for the development of Feel4Diabetes intervention to prevent type 2 diabetes - a narrative literature review. BMC Endocr Disord 2020; 20:140. [PMID: 32164690 PMCID: PMC7066732 DOI: 10.1186/s12902-019-0468-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Accepted: 12/04/2019] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Feel4Diabetes was a school and community based intervention aiming to promote healthy lifestyle and tackle obesity for the prevention of type 2 diabetes among families in 6 European countries. We conducted this literature review in order to guide the development of evidence-based implementation of the Feel4Diabetes intervention. We focused on type 2 diabetes prevention strategies, including all the phases from risk identification to implementation and maintenance. Special focus was given to prevention among vulnerable groups and people under 45 years. METHODS Scientific and grey literature published between January 2000 and January 2015 was searched for relevant studies using electronic databases. To present the literature review findings in a systematic way, we used the Reach, Effectiveness, Adoption, Implementation, and Maintenance (RE-AIM) framework. A complementary literature search from February 2015 to December 2018 was also conducted. RESULTS The initial review included 27 studies with a follow-up ≥12 months and 9 studies with a follow-up ≥6 months and with a participant mean age < 45 years. We found out that interventions should be targeted at people at risk to improve recruiting and intervention effectiveness. Screening questionnaires (primarily Finnish Diabetes Risk Score FINDRISC) and blood glucose measurement can both be used for screening; the method does not appear to affect intervention effectiveness. Screening and recruitment is time-consuming, especially when targeting lower socioeconomic status and age under 45 years. The intervention intensity is more important for effectiveness than the mode of delivery. Moderate changes in several lifestyle habits lead to good intervention results. A minimum of 3-year follow-up seemed to be required to show a reduction in diabetes risk in high-risk individuals. In participants < 45 years, the achieved results in outcomes were less pronounced. The complementary review included 12 studies, with similar results regarding intervention targets and delivery modes, as well as clinical significance. CONCLUSION This narrative review highlighted several important aspects that subsequently guided the development of the Feel4Diabetes high-risk intervention. Research on diabetes prevention interventions targeted at younger adults or vulnerable population groups is still relatively scarce. Feel4Diabetes is a good example of a project aiming to fill this research gap. TRIAL REGISTRATION clinicaltrials.gov NCT02393872, registered 20th March 2015.
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Affiliation(s)
- Jemina Kivelä
- Department of Public Health Solutions, National Institute for Health and Welfare, PO BOX 27, 00300 Helsinki, Finland
- Department of Obstetrics and Gynecology, University of Helsinki, Helsinki University Hospital, Helsinki, Finland
| | - Katja Wikström
- Department of Public Health Solutions, National Institute for Health and Welfare, PO BOX 27, 00300 Helsinki, Finland
- Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland
| | - Eeva Virtanen
- Department of Public Health Solutions, National Institute for Health and Welfare, PO BOX 27, 00300 Helsinki, Finland
| | - Michael Georgoulis
- Department of Nutrition and Dietetics, Harokopio University, Athens, Greece
| | - Greet Cardon
- Department of Movement and Sports Sciences, Ghent University, Ghent, Belgium
| | - Fernando Civeira
- GENUD (Growth, Exercise, Nutrition and Development) Research Group, University of Zaragoza, Zaragoza, Spain
| | - Violeta Iotova
- Department of Paediatrics, Medical University Varna, Varna, Bulgaria
| | | | - Winne Ko
- International Diabetes Federation, Brussels, Belgium
| | - Stavros Liatis
- National and Kapodistrian University of Athens, Athens, Greece
| | | | - Yannis Manios
- Department of Nutrition and Dietetics, Harokopio University, Athens, Greece
| | - Rocío Mateo-Gallego
- GENUD (Growth, Exercise, Nutrition and Development) Research Group, University of Zaragoza, Zaragoza, Spain
| | - Anna Nanasi
- Department of Family and Occupational Medicine, Faculty of Public Health, University of Debrecen, Debrecen, Hungary
| | - Imre Rurik
- Department of Family and Occupational Medicine, Faculty of Public Health, University of Debrecen, Debrecen, Hungary
| | - Tsvetalina Tankova
- Department of Diabetology, Clinical Center of Endocrinology, Medical University Sofia, Sofia, Bulgaria
| | - Kaloyan Tsochev
- Department of Paediatrics, Medical University Varna, Varna, Bulgaria
| | - Vicky Van Stappen
- Department of Movement and Sports Sciences, Ghent University, Ghent, Belgium
| | - Jaana Lindström
- Department of Public Health Solutions, National Institute for Health and Welfare, PO BOX 27, 00300 Helsinki, Finland
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Olaya-Contreras P, Balcker-Lundgren K, Siddiqui F, Bennet L. Perceptions, experiences and barriers to lifestyle modifications in first-generation Middle Eastern immigrants to Sweden: a qualitative study. BMJ Open 2019; 9:e028076. [PMID: 31630098 PMCID: PMC6803114 DOI: 10.1136/bmjopen-2018-028076] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
OBJECTIVE The prevalence of type 2 diabetes (T2D) among Iraqi immigrants to Sweden is high and partly related to sedentary physical activity and calorie dense food. The aim of the present study was to explore perceptions, experiences and barriers concerning lifestyle modifications (LSM) in Iraqi immigrants to Sweden at risk for T2D. DESIGN A qualitative thematic analysis was conducted on data collected from gender-specific focus group interviews which took place during a culturally adapted randomised controlled intervention study addressing motivation to lifestyle change, self-empowerment, behavioural modifications and sociocultural barriers to LSM. Seven focus groups were held, with an interval of 1-4 weeks between January and May of 2015; each session lasted approximately 1.5 hours. SETTING The city of Malmö, Sweden. PARTICIPANTS Out of 27 women and 23 men assigned to the intervention group, 19 women and 14 men who attended at least one focus group session were included in the study. RESULTS Participants expressed awareness of the content of healthy lifestyle practices. They also expressed numerous social and cultural barriers to LSM connected to irregular meals, overeating, food and drinking preferences and family expectations. Overeating was described as a consequence of social and cultural norms and expectations and of poor mental well-being. Facilitators for reaching successful LSM were connected to family involvement and support. CONCLUSION Our study reports that facilitators for LSM are connected to presence of family support. Preventive actions addressing family involvement may benefit Middle Eastern immigrants at high risk for T2D to consider healthier lifestyles practices. Identification of sociocultural barriers and facilitators for LSM are crucial for successful health promotion in minority populations at risk for T2D. TRIAL REGISTRATION Trial registration number: NCT01420198 for the MEDIM-study; Pre-results.
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Affiliation(s)
- Patricia Olaya-Contreras
- Institute of Health and Care Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenborg, Sweden
| | | | - Faiza Siddiqui
- Center for Primary Health Care Research, Region Skåne and Lund University, Malmö, Sweden
- Department of Clinical Sciences, Lund University, Malmö, Sweden
| | - Louise Bennet
- Center for Primary Health Care Research, Region Skåne and Lund University, Malmö, Sweden
- Department of Clinical Sciences, Lund University, Malmö, Sweden
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Jenum AK, Brekke I, Mdala I, Muilwijk M, Ramachandran A, Kjøllesdal M, Andersen E, Richardsen KR, Douglas A, Cezard G, Sheikh A, Celis-Morales CA, Gill JMR, Sattar N, Bhopal RS, Beune E, Stronks K, Vandvik PO, van Valkengoed IGM. Effects of dietary and physical activity interventions on the risk of type 2 diabetes in South Asians: meta-analysis of individual participant data from randomised controlled trials. Diabetologia 2019; 62:1337-1348. [PMID: 31201437 DOI: 10.1007/s00125-019-4905-2] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 04/15/2019] [Indexed: 10/26/2022]
Abstract
AIMS/HYPOTHESIS Individuals of South Asian origin have a high risk of type 2 diabetes and of dying from a diabetes-attributable cause. Lifestyle modification intervention trials to prevent type 2 diabetes in high-risk South Asian adults have suggested more modest effects than in European-origin populations. The strength of the evidence of individual studies is limited, however. We performed an individual participant data meta-analysis of available RCTs to assess the effectiveness of lifestyle modification in South Asian populations worldwide. METHODS We searched PubMed, EMBASE, Cochrane Library and Web of Science (to 24 September 2018) for RCTs on lifestyle modification interventions incorporating diet and/or physical activity in South Asian adults. Reviewers identified eligible studies and assessed the quality of the evidence. We obtained individual participant data on 1816 participants from all six eligible trials (four from Europe and two from India). We generated HR estimates for incident diabetes (primary outcome) and mean differences for fasting glucose, 2 h glucose, weight and waist circumference (secondary outcomes) using mixed-effect meta-analysis overall and by pre-specified subgroups. We used the Grading of Recommendations, Assessment, Development and Evaluation (GRADE) system to rate the quality of evidence of the estimates. The study is registered with the International Prospective Register of Systematic Reviews ([PROSPERO] CRD42017078003). RESULTS Incident diabetes was observed in 12.6% of participants in the intervention groups and in 20.0% of participants in the control groups. The pooled HR for diabetes incidence was 0.65 (95% CI 0.51, 0.81; I2 = 0%) in intervention compared with control groups. The absolute risk reduction was 7.4% (95% CI 4.0, 10.2), with no interactions for the pre-specified subgroups (sex, BMI, age, study duration and region where studies were performed). The quality of evidence was rated as moderate. Mean difference for lifestyle modification vs control groups for 2 h glucose was -0.34 mmol/l (95% CI -0.62, -0.07; I2 = 50%); for weight -0.75 kg (95% CI -1.34, -0.17; I2 = 71%) and for waist -1.16 cm (95% CI -2.16, -0.16; I2 = 75%). No effect was found for fasting glucose. Findings were similar across subgroups, except for weight for European vs Indian studies (-1.10 kg vs -0.08 kg, p = 0.02 for interaction). CONCLUSIONS/INTERPRETATION Despite modest changes for adiposity, lifestyle modification interventions in high-risk South Asian populations resulted in a clinically important 35% relative reduction in diabetes incidence, consistent across subgroups. If implemented on a large scale, lifestyle modification interventions in high-risk South Asian populations in Europe would reduce the incidence of diabetes in these populations.
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Affiliation(s)
- Anne Karen Jenum
- General Practice Research Unit (AFE), Department of General Practice, Institute of Health and Society, Faculty of Medicine, University of Oslo, Post Box 1130 Blindern, 0318, Oslo, Norway.
| | - Idunn Brekke
- Centre for Welfare and Labour Research, Norwegian Social Research, OsloMet - Oslo Metropolitan University, Oslo, Norway
- Faculty of Health Sciences, Department of Nursing and Health Promotion, OsloMet - Oslo Metropolitan University, Oslo, Norway
| | - Ibrahimu Mdala
- General Practice Research Unit (AFE), Department of General Practice, Institute of Health and Society, Faculty of Medicine, University of Oslo, Post Box 1130 Blindern, 0318, Oslo, Norway
| | - Mirthe Muilwijk
- Department of Public Health, Amsterdam Public Health Research Institute, University of Amsterdam, Amsterdam, the Netherlands
| | - Ambady Ramachandran
- India Diabetes Research Foundation, Chennai, India
- Dr. A. Ramachandran's Diabetes Hospitals, Chennai, India
| | - Marte Kjøllesdal
- Department of Community Medicine and Global Health, Institute of Health and Society, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Eivind Andersen
- Faculty of Humanities, Sports and Educational Science, University of South-Eastern Norway, Borre, Norway
| | - Kåre R Richardsen
- Department of Physiotherapy, Faculty of Health Sciences, OsloMet - Oslo Metropolitan University, Oslo, Norway
| | - Anne Douglas
- Usher Institute of Population Health Sciences and Informatics, University of Edinburgh, Edinburgh, UK
| | - Genevieve Cezard
- Usher Institute of Population Health Sciences and Informatics, University of Edinburgh, Edinburgh, UK
- Population and Health Research Group, School of Geography and Sustainable Development, University of St Andrews, Fife, Scotland, UK
| | - Aziz Sheikh
- Usher Institute of Population Health Sciences and Informatics, University of Edinburgh, Edinburgh, UK
| | | | - Jason M R Gill
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
| | - Naveed Sattar
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
| | - Raj S Bhopal
- Usher Institute of Population Health Sciences and Informatics, University of Edinburgh, Edinburgh, UK
| | - Erik Beune
- Department of Public Health, Amsterdam Public Health Research Institute, University of Amsterdam, Amsterdam, the Netherlands
| | - Karien Stronks
- Department of Public Health, Amsterdam Public Health Research Institute, University of Amsterdam, Amsterdam, the Netherlands
| | - Per Olav Vandvik
- Department of Medicine, Innlandet Hospital Trust, Gjøvik, Norway
| | - Irene G M van Valkengoed
- Department of Public Health, Amsterdam Public Health Research Institute, University of Amsterdam, Amsterdam, the Netherlands
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Abstract
Type 2 diabetes is a major UK public health priority. Among minority ethnic communities, the prevalence is alarmingly high, approximately three to five times higher than in the white British population. Particularly striking is the earlier onset of Type 2 diabetes, which occurs some 10-12 years younger, with a significant proportion of cases being diagnosed before the age of 40 years. This review focuses on the UK context and Type 2 diabetes in adult populations, exploring the available evidence regarding the complex interplay of biological, lifestyle, social, clinical and healthcare system factors that are known to drive these disparities.
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Affiliation(s)
- L M Goff
- Diabetes Research Group, Departments of Diabetes and Nutritional Sciences, King's College London, London, UK
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Systematic Review of the Effect of Lifestyle Interventions on the Components of the Metabolic Syndrome in South Asian Migrants. J Immigr Minor Health 2019; 20:231-244. [PMID: 27766507 DOI: 10.1007/s10903-016-0515-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A systematic review was undertaken to identify lifestyle intervention studies in South Asian migrant populations to determine the effect on the components of the metabolic syndrome. A total of seven studies were identified, of which six focused on educational advice and the seventh on intensive exercise intervention. Four studies were Randomised Controlled Trials of which two studies reported significant reductions in waist circumference. One of these studies focused on home based education with cooperation of the home cook (adjusted waist reduction of 1.9 cm, 95 % CI 0.52-3.3 cm; p = 0.007) and the other entailed an intensive physical activity program (adjusted waist reduction 3.4 cm, 95 % CI 2.0-4.7 cm). The evidence whether lifestyle intervention studies in South Asians can improve components of the metabolic system is not clear. Further lifestyle interventions for South Asians should be culturally adapted, involve friends and family, especially those with cooking responsibilities.
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Muilwijk M, Nicolaou M, Qureshi SA, Celis-Morales C, Gill JMR, Sheikh A, Sattar N, Beune E, Jenum AK, Stronks K, van Valkengoed IGM. Dietary and physical activity recommendations to prevent type 2 diabetes in South Asian adults: A systematic review. PLoS One 2018; 13:e0200681. [PMID: 30011314 PMCID: PMC6047810 DOI: 10.1371/journal.pone.0200681] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Accepted: 07/02/2018] [Indexed: 02/07/2023] Open
Abstract
Intervention trials and guidelines for the prevention of type 2 diabetes (T2D) in populations of South Asian origin often include strategies to improve diet and physical activity that are based on those developed for other populations. These may be suboptimal for the South Asian target populations. We aimed to provide an overview of included recommended dietary and physical activity components, and to identify whether these were supported by evidence of their effectiveness. Databases were searched until September 2017 for intervention studies and guidelines with an adult South Asian population without T2D. The protocol was registered in PROSPERO, registration number: CRD42015207067. The quality of included studies and guidelines was assessed. Dietary and physical activity components, and effects on T2D incidence, glycemic status and adiposity measures, were summarized in tabular format and evaluated narratively. Eighteen intervention studies and four guidelines were identified. Dietary and physical activity components were similar to recommendations for the general population. Intervention studies and guidelines did not reference evidence to support the effectiveness of components included in the intervention for South Asian populations in particular. Moreover, we were unable to assess patterns of components to determine the effects of specific components. Evaluation of current and emerging components among South Asian populations and subgroups seems necessary to formulate more specific recommendations in future intervention studies and guidelines.
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Affiliation(s)
- Mirthe Muilwijk
- Department of Public Health, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
- * E-mail:
| | - Mary Nicolaou
- Department of Public Health, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Samera A. Qureshi
- The Norwegian Centre for Migrant and Minority Health Research, Oslo, Norway
| | - Carlos Celis-Morales
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Jason M. R. Gill
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Aziz Sheikh
- Usher Institute of Population Health Sciences and Informatics, The University of Edinburgh, Edinburgh, United Kingdom
| | - Naveed Sattar
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Erik Beune
- Department of Public Health, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Anne Karen Jenum
- Department of General Practice, Faculty of Medicine, Institute of Health and Society, Blindern, Oslo, Norway
| | - Karien Stronks
- Department of Public Health, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Irene G. M. van Valkengoed
- Department of Public Health, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
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Terragni L, Beune E, Stronks K, Davidson E, Qureshi S, Kumar B, Diaz E. Developing culturally adapted lifestyle interventions for South Asian migrant populations: a qualitative study of the key success factors and main challenges. Public Health 2018; 161:50-58. [PMID: 29902781 DOI: 10.1016/j.puhe.2018.04.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2017] [Revised: 03/15/2018] [Accepted: 04/13/2018] [Indexed: 01/26/2023]
Abstract
OBJECTIVES South Asian migrant populations have a high risk of non-communicable diseases, such as type 2 diabetes (T2D). The aim of this study is to provide in-depth insight into key success factors and challenges in developing culturally adapted lifestyle interventions to prevent T2D within South Asian migrant populations. STUDY DESIGN The study has a qualitative research design. METHODS In-depth interviews, using a semi-structured interview guide, were conducted with eight researchers and project leaders from five studies of culturally adapted lifestyle interventions for South Asian migrant populations. Data were analysed using a grounded theory approach. RESULTS Four main themes emerged as key factors for success: 'approaching the community in the right way', 'the intervention as a space for social relations', 'support from public authorities' and 'being reflexive and flexible'. Two themes emerged as challenges: 'struggling with time' and 'overemphasising cultural differences'. CONCLUSIONS Our findings augment existing research by establishing the importance of cooperation at the organisational and institutional levels, of fostering the creation of social networks through interventions and of acknowledging the multiplicity of identities and resources among individuals of the same ethnic origin.
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Affiliation(s)
- L Terragni
- Norwegian Centre for Migration and Minority Health-The Norwegian Institute of Public Health, PO Box 222 Skøyen, N-0213, Oslo, Norway; Institute of Nursing and Health Promotion, Department of Health, OsloMet - Oslo Metropolitan University, Oslo, Norway.
| | - E Beune
- Department of Public Health, Academic Medical Center, University of Amsterdam, Amsterdam Public Health Research Institute, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands.
| | - K Stronks
- Department of Public Health, Academic Medical Center, University of Amsterdam, Amsterdam Public Health Research Institute, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands.
| | - E Davidson
- Usher Institute of Population Health Sciences and Informatics, University of Edinburgh, Old Medical School, Teviot Place, Edinburgh, EH8 9AG, Scotland, United Kingdom.
| | - S Qureshi
- Norwegian Centre for Migration and Minority Health-The Norwegian Institute of Public Health, PO Box 222 Skøyen, N-0213, Oslo, Norway.
| | - B Kumar
- Norwegian Centre for Migration and Minority Health-The Norwegian Institute of Public Health, PO Box 222 Skøyen, N-0213, Oslo, Norway; Department of Community Medicine, Institute of Health and Society, University of Oslo, Postboks 4959 Nydalen, 0424, Oslo, Norway.
| | - E Diaz
- Norwegian Centre for Migration and Minority Health-The Norwegian Institute of Public Health, PO Box 222 Skøyen, N-0213, Oslo, Norway; Department of Global Public Health and Primary Care, University of Bergen, PO. Box 7804 N-5020, Bergen, Norway.
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Effectiveness of the MetSLIM lifestyle intervention targeting individuals of low socio-economic status and different ethnic origins with elevated waist-to-height ratio. Public Health Nutr 2017; 20:2617-2628. [DOI: 10.1017/s1368980017001458] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
AbstractObjectiveTo evaluate whether the lifestyle intervention MetSLIM targeting individuals of low socio-economic status of Turkish, Moroccan and Dutch origin was successful in improving waist circumference and other cardiometabolic risk factors, lifestyle behaviour and quality of life.DesignA quasi-experimental intervention study (Netherlands Trial Register NTR3721). The intervention group participated in a 12-month combined dietary and physical activity programme. Examinations were performed at baseline and after 12 months. Participants underwent anthropometric measurements and blood withdrawal, and completed questionnaires on dietary intake, physical activity and quality of life.SettingSocio-economically deprived neighbourhoods in two Dutch cities, involving non-blinded ethnicity-matched and gender-matched research assistants, dietitians and sports instructors.SubjectsMainly Turkish (49 %) and Dutch (36 %) subjects, aged 30–70 years, with a waist-to-height ratio of >0·5 (intervention,n117; control,n103). Dropout was 31 %.ResultsAt 12 months, the intervention group showed greater improvements than the control group in waist circumference (β=−3·3 cm, 95 % CI −4·7, −1·8,P<0·001) and other obesity measures. Additionally, greater reductions were observed for total cholesterol (β=−0·33 mmol/l, 95 % CI −0·56, −0·10,P=0·005) and LDL cholesterol (β=−0·35 mmol/l, 95 % CI −0·56, −0·14,P=0·001). Dietary changes were significant for fibre intake (β=1·5 g/4184 kJ (1000 kcal), 95 % CI 0·3, 2·7,P=0·016). Compared with the control group, the intervention group reported a decrease in total minutes of physical activity (β=−573 min/week, 95 % CI −1126, −21,P=0·042) and showed improvements in the quality-of-life domains ‘health transition’ and ‘general health’.ConclusionsMetSLIM was shown to be effective in improving waist circumference, total and LDL cholesterol, and quality of life among Dutch and Turkish individuals living in deprived neighbourhoods.
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Vlaar EMA, Nierkens V, Nicolaou M, Middelkoop BJC, Busschers WB, Stronks K, van Valkengoed IGM. Effectiveness of a targeted lifestyle intervention in primary care on diet and physical activity among South Asians at risk for diabetes: 2-year results of a randomised controlled trial in the Netherlands. BMJ Open 2017; 7:e012221. [PMID: 28674122 PMCID: PMC5734200 DOI: 10.1136/bmjopen-2016-012221] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
OBJECTIVES In South Asian populations, little is known about the effects of intensive interventions to reduce the risk of type 2 diabetes on health behaviour. We examined the effectiveness at 2 years of a culturally targeted lifestyle intervention on diet, physical activity and determinants of behaviour change among South Asians at risk for diabetes. DESIGN Randomised controlled trial with de facto masking. SETTING Primary care. PARTICIPANTS A total of 536 18- to 60-year-old South Asians at risk for diabetes (ie, with impaired glucose tolerance, impaired fasting glucose or relatively high insulin resistance) were randomised to the intervention (n=283) or a control (n=253) group. Data of 314 participants (n=165 intervention, n=149 control) were analysed. INTERVENTIONS The culturally targeted intervention consisted of individual counselling using motivational interviewing (six to eight sessions in the first 6 months plus three to four booster sessions), a family session, cooking classes and a supervised physical activity programme. The control group received generic lifestyle advice. OUTCOME MEASURES We compared changes in physical activity, diet and social-cognitive underlying determinants between the two groups at 2-year follow-up with independent-sample t-tests, chi-square tests and Fisher's exact tests. RESULTS At the 2-year follow-up, participants in the intervention group were more moderately to vigorously active than at baseline, but compared with changes in the control group, the difference was not significant (change min/week 142.9 vs 0.5, p=0.672). Also, no significant difference was found between the two groups in changes on any of the components of the diet or the social-cognitive determinants of diet and physical activity. CONCLUSIONS The culturally targeted lifestyle intervention led to high drop-out and was not effective in promoting healthy behaviour among South Asians at risk for diabetes. Given the high a priori risk, we recommend to develop new strategies, preferably more acceptable, to promote healthy behaviour. TRIAL REGISTRATION NTR1499; Results. www.trialregister.nl/trialreg/admin/rctview.asp?TC=1499.
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Affiliation(s)
- Everlina M A Vlaar
- Public Health, AMC, Amsterdam, The Netherlands
- GGD Flevoland, Lelystad, The Netherlands
| | - Vera Nierkens
- Public Health, AMC, Amsterdam, The Netherlands
- Public Health and Primary Health Care, Leiden Unversity Medical Center, Leiden, The Netherlands
| | | | - Barend J C Middelkoop
- Public Health and Primary Health Care, Leiden Unversity Medical Center, Leiden, The Netherlands
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Muilwijk M, Stronks K, Qureshi SA, Beune E, Celis-Morales C, Gill J, Sheikh A, Jenum AK, van Valkengoed IGM. Dietary and physical activity strategies to prevent type 2 diabetes in South Asian adults: protocol for a systematic review. BMJ Open 2017; 7:e012783. [PMID: 28674123 PMCID: PMC5734198 DOI: 10.1136/bmjopen-2016-012783] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
INTRODUCTION Type 2 diabetes (T2D) is a major health concern among populations of South Asian ethnicity. Although dietary and physical activity interventions may reduce the risk of T2D, the effectiveness has been moderate among South Asians. This might (in part) be because this subgroup follows strategies that were originally developed for interventions among other populations. Therefore, this review aims to assess the evidence for the current dietary and physical activity strategies recommended in T2D prevention intervention studies and guidelines for South Asians. METHODS AND ANALYSIS Included will be all studies and guidelines on dietary and/or physical activity strategies to prevent T2D in adult South Asians. Two reviewers will search online databases from their start until the present date for published and unpublished experimental/quasiexperimental studies, with at least an abstract in English. References of identified articles and key reviews will be screened for additional studies. Guidelines will be identified by searches in online databases and websites of public organisations. Finally, expert consultations will be held to supplement any missing information. Trial quality will be assessed with the Quality Assessment Tool for Quantitative Studies Data, and guidelines with the Appraisal of Guidelines for Research & Evaluation II. Data on the strategies recommended, targeting and evidence on effectiveness will be extracted by two reviewers and presented in tabular and narrative forms. Recommendations will be compared with the National Institute for Health and Care Excellence guidelines [PH35]. Overall findings on dietary and physical activity recommendations, as well as findings for specific subgroups (eg, by sex), will be discussed. ETHICS AND DISSEMINATION Ethics assessment is not required. Start date: 1 January 2016, finishing and reporting date 31 July 2016. Results will be published in a peer-reviewed scientific journal, the project report of EuroDHYAN (www.eurodhyan.eu) and in a PhD dissertation. TRIAL REGISTRATION NUMBER The protocol is registered with the International Prospective Register of Systematic Reviews (PROSPERO) registration number CRD42015027067.
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Affiliation(s)
- Mirthe Muilwijk
- Department of Public Health, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Karien Stronks
- Department of Public Health, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | | | - Erik Beune
- Department of Public Health, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Carlos Celis-Morales
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
| | - Jason Gill
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
| | - Aziz Sheikh
- Centre for Population Health Sciences, University of Edinburgh, Edinburgh, UK
| | | | - Irene GM van Valkengoed
- Department of Public Health, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
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Mahmood B, Afshar R, Tang TS. Recruitment and Retention of South Asian Ethnic Minority Populations in Behavioral Interventions to Improve Type 2 Diabetes Outcomes. Curr Diab Rep 2017; 17:25. [PMID: 28321765 DOI: 10.1007/s11892-017-0850-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
PURPOSE OF REVIEW South Asian (SA) immigrants have a higher burden of type 2 diabetes, report poor self-management, and remain a hard-to-engage group in behavioral interventions. The purpose of this review was to characterize recruitment and retention of SAs in behavioral interventions. RECENT FINDINGS We identified 14 studies with limited information regarding recruitment and retention. Overall recruitment rates were low: 12 studies had a mean recruitment rate of 44% among those screened, and 9 studies with complete information on eligibility had a mean recruitment rate of 65.8% among those eligible. Mean retention rate was 79.4% across all 14 studies. Although unstandardized and inconsistent reporting limited our ability to draw any conclusions regarding the best strategies to maximize recruitment and retention, we were able to highlight some novel and effective strategies. There is a need for consistent and standardized reporting of recruitment and retention-related information to encourage meaningful research and guide researchers in efficient allocation of resources and a successful conclusion of future interventions.
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Affiliation(s)
- Bushra Mahmood
- Department of Medicine, Division of Endocrinology, University of British Columbia, DHCC #10211, 2775 Laurel Street, 10th Floor, Vancouver, BC, V5Z 1M9, Canada
| | - Rowshanak Afshar
- Department of Medicine, Division of Endocrinology, University of British Columbia, DHCC #10211, 2775 Laurel Street, 10th Floor, Vancouver, BC, V5Z 1M9, Canada
| | - Tricia S Tang
- Department of Medicine, Division of Endocrinology, University of British Columbia, DHCC #10211, 2775 Laurel Street, 10th Floor, Vancouver, BC, V5Z 1M9, Canada.
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Sun Y, You W, Almeida F, Estabrooks P, Davy B. The Effectiveness and Cost of Lifestyle Interventions Including Nutrition Education for Diabetes Prevention: A Systematic Review and Meta-Analysis. J Acad Nutr Diet 2017; 117:404-421.e36. [PMID: 28236962 PMCID: PMC5330213 DOI: 10.1016/j.jand.2016.11.016] [Citation(s) in RCA: 107] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Accepted: 11/28/2016] [Indexed: 12/24/2022]
Abstract
BACKGROUND Type 2 diabetes is a significant public health concern. With the completion of the Diabetes Prevention Program, there has been a proliferation of studies attempting to translate this evidence base into practice. However, the cost, effectiveness, and cost-effectiveness of these adapted interventions is unknown. OBJECTIVE The purpose of this systematic review was to conduct a comprehensive meta-analysis to synthesize the effectiveness, cost, and cost-effectiveness of lifestyle diabetes prevention interventions and compare effects by intervention delivery agent (dietitian vs non-dietitian) and channel (in-person vs technology-delivered). METHODS English and full-text research articles published up to July 2015 were identified using the Cochrane Library, PubMed, Education Resources Information Center, CAB Direct, Science Direct, and Google Scholar. Sixty-nine studies met inclusion criteria. Most employed both dietary and physical activity intervention components (four of 69 were diet-only interventions). Changes in weight, fasting and 2-hour blood glucose concentration, and hemoglobin A1c were extracted from each article. Heterogeneity was measured by the I2 index, and study-specific effect sizes or mean differences were pooled using a random effects model when heterogeneity was confirmed. RESULTS Participants receiving intervention with nutrition education experienced a reduction of 2.07 kg (95% CI 1.52 to 2.62; P<0.001; I2=90.99%, 95% CI 88.61% to 92.87%) in weight at 12 months with effect sizes over time ranging from small (0.17, 95% CI 0.04 to 0.30; P=0.012; I2= 86.83%, 95% CI 80.42% to 91.14%) to medium (0.65, 95% CI 0.49 to 0.82; P<0.001; I2=98.75%, 95% CI 98.52% to 98.94). Effect sizes for 2-hour blood glucose and hemoglobin A1c level changes ranged from small to medium. The meta-regression analysis revealed a larger relative weight loss in dietitian-delivered interventions than in those delivered by nondietitians (full sample: -1.0 kg; US subsample: -2.4 kg), and did not find statistical evidence that the delivery channel was an important predictor of weight loss. The average cost per kilogram weight loss ranged from $34.06 over 6 months to $1,005.36 over 12 months. The cost of intervention per participant delivered by dietitians was lower than interventions delivered by non-dietitians, although few studies reported costs. CONCLUSIONS Lifestyle interventions are effective in reducing body weight and glucose-related outcomes. Dietitian-delivered interventions, compared with those delivered by other personnel, achieved greater weight reduction. No consistent trend was identified across different delivery channels.
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Lagisetty PA, Priyadarshini S, Terrell S, Hamati M, Landgraf J, Chopra V, Heisler M. Culturally Targeted Strategies for Diabetes Prevention in Minority Population. THE DIABETES EDUCATOR 2017; 43:54-77. [PMID: 28118127 PMCID: PMC5408505 DOI: 10.1177/0145721716683811] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Purpose The purpose of this study is to (a) assess the effectiveness of culturally tailored diabetes prevention interventions in minority populations and (b) develop a novel framework to characterize 4 key domains of culturally tailored interventions. Prevention strategies specifically tailored to the culture of ethnic minority patients may help reduce the incidence of diabetes. Methods We searched PubMed, EMBASE, and CINAHL for English-language, randomized controlled trials (RCTs) or quasi-experimental (QE) trials testing culturally tailored interventions to prevent diabetes in minority populations. Two reviewers independently extracted data and assessed risk of bias. Inductive thematic analysis was used to develop a framework with 4 domains (FiLLM: Facilitating [ie, delivering] Interventions Through Language, Location, and Message). The framework was used to assess the overall effectiveness of culturally tailored interventions. Results Thirty-four trials met eligibility criteria. Twelve studies were RCTs, and 22 were QE trials. Twenty-five out of 34 studies (74%) that used cultural tailoring demonstrated significantly improved A1C, fasting glucose, and/or weight loss. Of the 25 successful interventions, 21 (84%) incorporated at least 3 culturally targeted domains. Seven studies used all 4 domains and were all successful. The least utilized domain was delivery (4/34) of the intervention's key educational message. Conclusions Culturally tailoring interventions across the 4 domains of facilitators, language, location, and messaging can be effective in improving risk factors for progression to diabetes among ethnic minority groups. Future studies should evaluate how specific tailoring approaches work compared to usual care as well as comparative effectiveness of each tailoring domain.
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Affiliation(s)
- Pooja A Lagisetty
- Department of General Internal Medicine, University of Michigan, Ann Arbor, Michigan (Dr Lagisetty, Ms Priyadarshini, Ms Terrell, Ms Hamati, Ms Landgraf, Dr Chopra, Dr Heisler)
- VA Center for Clinical Management Research, VA Ann Arbor Healthcare System, Ann Arbor, Michigan (Dr Lagisetty, Dr Heisler)
| | - Shubadra Priyadarshini
- Department of General Internal Medicine, University of Michigan, Ann Arbor, Michigan (Dr Lagisetty, Ms Priyadarshini, Ms Terrell, Ms Hamati, Ms Landgraf, Dr Chopra, Dr Heisler)
| | - Stephanie Terrell
- Department of General Internal Medicine, University of Michigan, Ann Arbor, Michigan (Dr Lagisetty, Ms Priyadarshini, Ms Terrell, Ms Hamati, Ms Landgraf, Dr Chopra, Dr Heisler)
| | - Mary Hamati
- Department of General Internal Medicine, University of Michigan, Ann Arbor, Michigan (Dr Lagisetty, Ms Priyadarshini, Ms Terrell, Ms Hamati, Ms Landgraf, Dr Chopra, Dr Heisler)
| | - Jessica Landgraf
- Department of General Internal Medicine, University of Michigan, Ann Arbor, Michigan (Dr Lagisetty, Ms Priyadarshini, Ms Terrell, Ms Hamati, Ms Landgraf, Dr Chopra, Dr Heisler)
| | - Vineet Chopra
- Department of General Internal Medicine, University of Michigan, Ann Arbor, Michigan (Dr Lagisetty, Ms Priyadarshini, Ms Terrell, Ms Hamati, Ms Landgraf, Dr Chopra, Dr Heisler)
| | - Michele Heisler
- Department of General Internal Medicine, University of Michigan, Ann Arbor, Michigan (Dr Lagisetty, Ms Priyadarshini, Ms Terrell, Ms Hamati, Ms Landgraf, Dr Chopra, Dr Heisler)
- VA Center for Clinical Management Research, VA Ann Arbor Healthcare System, Ann Arbor, Michigan (Dr Lagisetty, Dr Heisler)
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Siddiqui F, Kurbasic A, Lindblad U, Nilsson PM, Bennet L. Effects of a culturally adapted lifestyle intervention on cardio-metabolic outcomes: a randomized controlled trial in Iraqi immigrants to Sweden at high risk for Type 2 diabetes. Metabolism 2017; 66:1-13. [PMID: 27923444 DOI: 10.1016/j.metabol.2016.10.001] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Revised: 09/16/2016] [Accepted: 10/02/2016] [Indexed: 12/23/2022]
Abstract
BACKGROUND AND AIMS Middle-Eastern immigrants constitute a growing proportion of the Swedish population and are at high risk for Type 2 diabetes. This calls for a more proactive preventive approach for dealing with diabetes risk in this target group. The aim was to test the effect of a culturally adapted lifestyle intervention programme on changes in lifestyle habits and cardio-metabolic outcomes comparing an intervention group with a control group receiving usual care. METHODS Citizens of Malmö, Sweden born in Iraq and at high risk for Type 2 diabetes (n=636) were invited. Participation rate was 15.1%. In all, 96 participants were randomized to the intervention group (n=50) or to the control group (n=46). The intervention group was offered seven group sessions addressing healthy diet and physical activity including one cooking class. Changes in body weight, physical activity levels and cardio-metabolic outcomes were evaluated using linear mixed-effects models. RESULTS The mean follow-up time was 3.9 and 3.5months in the intervention and control groups, respectively. The drop-out rate from baseline to the last visit was 30.0% in the intervention group (n=15) and 30.4% in the control group (n=14). The mean insulin sensitivity index increased significantly at follow-up in the intervention group compared to the control group (10.9% per month, p=0.005). The intervention group also reached a significant reduction in body weight (0.4% per month, p=0.004), body mass index (0.4% per month, p=0.004) and LDL-cholesterol (2.1% per month, p=0.036) compared to the control group. In total, 14.3% in the intervention group reached the goal to lose ≥5% of body weight versus none in the control group. CONCLUSIONS This culturally adapted lifestyle intervention programme shows a beneficial effect on insulin action, body weight reduction, as well as LDL-cholesterol reduction, in Middle-Eastern immigrants. The programme adapted to resources in primary health care provides tools for improved primary prevention and reduced cardio-metabolic risk in this high-risk group for Type 2 diabetes.
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Affiliation(s)
- Faiza Siddiqui
- Department of Clinical Sciences, Lund University, Malmö, Sweden
| | - Azra Kurbasic
- Genetic and molecular epidemiology unit, Lund University, Malmö, Sweden
| | - Ulf Lindblad
- Department of Community Medicine/Primary Health Care, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Peter M Nilsson
- Department of Clinical Sciences, Lund University, Malmö, Sweden
| | - Louise Bennet
- Department of Clinical Sciences, Lund University, Malmö, Sweden; Center for Primary Health Care Research, Region Skåne and Lund University, Malmö, Sweden.
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Modesti PA, Galanti G, Cala' P, Calabrese M. Lifestyle interventions in preventing new type 2 diabetes in Asian populations. Intern Emerg Med 2016; 11:375-84. [PMID: 26475162 DOI: 10.1007/s11739-015-1325-2] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Accepted: 08/27/2015] [Indexed: 12/21/2022]
Abstract
The aim of this study was to review current evidence on interventional studies aimed at the prevention of type 2 diabetes in Asian population with lifestyle interventions. Prevalence of type 2 diabetes sharply increased in most Asian countries during the last decades. This issue has now also relevant implication for Europe where different surveys are also consistently revealing an higher prevalence of type 2 diabetes and other and major CVD risk factors among subjects originating from Asian Countries than in the native population. Nutrition and lifestyle transition seem to play a role in disclosing the predisposition for the development of type 2 diabetes and great interest is now shown toward the possibility to intervene with lifestyle intervention on at risk populations. A meta-analysis of Randomized Controlled Trials showed that lifestyle interventions are highly effective also in the Asian population. All studies were, however, conducted with an individual approach based on the identification of high-risk individuals. When ethnic minority groups have to be addressed, an approach directed to the community rather than to the individual might, however, be more effective. This review reinforces the importance for policy-makers to consider the involvement of the whole community of minority immigrant groups with lifestyle intervention programs.
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Affiliation(s)
- Pietro Amedeo Modesti
- Department of Medicina Sperimentale e Clinica, University of Florence, Largo Brambilla 3, 50134, Florence, Italy.
| | - Giorgio Galanti
- Sports Medicine Center, University of Florence, Florence, Italy
| | - Piergiuseppe Cala'
- Direzione generale Diritti di cittadinanza e Coesione Sociale, Regione Toscana, Florence, Italy
| | - Maria Calabrese
- U.O. Diabetologia, ASL 4 Prato, Ospedale Misericordia e Dolce, Prato, Italy
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Barriers and Facilitators for Type-2 Diabetes Management in South Asians: A Systematic Review. PLoS One 2015; 10:e0136202. [PMID: 26383535 PMCID: PMC4575130 DOI: 10.1371/journal.pone.0136202] [Citation(s) in RCA: 125] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Accepted: 08/04/2015] [Indexed: 11/25/2022] Open
Abstract
Objective Although South Asian populations have among the highest burden of type 2 diabetes in the world, their diabetes management remains poor. We systematically reviewed studies on South Asian patient’s perspectives on the barriers and facilitators to diabetes management. Methods We conducted a literature search using OVID, CINHAL and EMBASE (January, 1990 –February, 2014) evaluating the core components of diabetes management: interactions with health care providers, diet, exercise, and medication adherence. South Asian patients were self-reported as Indian, Pakistani, Malaysian-Indian or Bangladeshi origin. From 208 abstracts reviewed, 20 studies were included (19 qualitative including mixed methods studies, 1 questionnaire). Barriers and facilitators were extracted and combined using qualitative synthesis. Results All studies included barriers and few facilitators were identified. Language and communication discordance with the healthcare provider was a significant barrier to receiving and understanding diabetes education. There was inconsistent willingness to partake in self-management with preference for following their physician’s guidance. Barriers to adopting a diabetic diet were lack of specific details on South Asian tailored diabetic diet; social responsibilities to continue with a traditional diet, and misconceptions on the components of the diabetic diet. For exercise, South Asian patients were concerned with lack of gender specific exercise facilities and fear of injury or worsening health with exercise. Patients reported a lack of understanding about diabetes medication management, preference for folk and phytotherapy, and concerns about the long-term safety of diabetes medications. Facilitators included trust in care providers, use of culturally appropriate exercise and dietary advice and increasing family involvement. Overall themes for the barriers included lack of knowledge and misperceptions as well as lack of cultural adaptation to diabetes management. Conclusion Diabetes programs that focus on improving communication, addressing prevailing misconceptions, and culture specific strategies may be useful for improving diabetes management for South Asians.
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Balk EM, Earley A, Raman G, Avendano EA, Pittas AG, Remington PL. Combined Diet and Physical Activity Promotion Programs to Prevent Type 2 Diabetes Among Persons at Increased Risk: A Systematic Review for the Community Preventive Services Task Force. Ann Intern Med 2015; 163:437-51. [PMID: 26167912 PMCID: PMC4692590 DOI: 10.7326/m15-0452] [Citation(s) in RCA: 199] [Impact Index Per Article: 22.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Trials have shown efficacy of rigorous diet and physical activity promotion programs to reduce diabetes incidence and improve glycemic measures in adults at increased risk for type 2 diabetes. PURPOSE To evaluate diet and physical activity promotion programs for persons at increased risk for type 2 diabetes, primarily to reduce diabetes risk and decrease body weight and glycemia. DATA SOURCES MEDLINE, the Cochrane Central Register of Controlled Trials, CAB Abstracts, Global Health, and Ovid HealthSTAR from 1991 through 27 February 2015, with no language restriction. STUDY SELECTION 8 researchers screened articles for single-group or comparative studies of combined diet and physical activity promotion programs with at least 2 sessions over at least 3 months in participants at increased risk for type 2 diabetes. DATA EXTRACTION 7 researchers extracted data on study design; participant, intervention, and outcome descriptions; and results and assessed study quality. DATA SYNTHESIS 53 studies (30 of diet and physical activity promotion programs vs. usual care, 13 of more intensive vs. less intensive programs, and 13 of single programs) evaluated 66 programs. Compared with usual care, diet and physical activity promotion programs reduced type 2 diabetes incidence (risk ratio [RR], 0.59 [95% CI, 0.52 to 0.66]) (16 studies), decreased body weight (net change, -2.2% [CI, -2.9% to -1.4%]) (24 studies) and fasting blood glucose level (net change, -0.12 mmol/L [-2.2 mg/dL] [CI, -0.20 to -0.05 mmol/L {-3.6 to -0.9 mg/dL}]) (17 studies), and improved other cardiometabolic risk factors. Evidence for clinical events was limited. More intensive programs were more effective. LIMITATIONS Wide variation in diet and physical activity promotion programs limited identification of features most relevant to effectiveness. Evidence on clinical outcomes and in children was sparse. CONCLUSION Combined diet and physical activity promotion programs are effective at decreasing diabetes incidence and improving cardiometabolic risk factors in persons at increased risk. More intensive programs are more effective. PRIMARY FUNDING SOURCE Centers for Disease Control and Prevention Community Preventive Services Task Force.
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Affiliation(s)
- Ethan M. Balk
- From Brown University School of Public Health, Providence, Rhode Island; Tufts Medical Center and Mapi Group, Boston, Massachusetts; and University of Wisconsin, Madison, Wisconsin
| | - Amy Earley
- From Brown University School of Public Health, Providence, Rhode Island; Tufts Medical Center and Mapi Group, Boston, Massachusetts; and University of Wisconsin, Madison, Wisconsin
| | - Gowri Raman
- From Brown University School of Public Health, Providence, Rhode Island; Tufts Medical Center and Mapi Group, Boston, Massachusetts; and University of Wisconsin, Madison, Wisconsin
| | - Esther A. Avendano
- From Brown University School of Public Health, Providence, Rhode Island; Tufts Medical Center and Mapi Group, Boston, Massachusetts; and University of Wisconsin, Madison, Wisconsin
| | - Anastassios G. Pittas
- From Brown University School of Public Health, Providence, Rhode Island; Tufts Medical Center and Mapi Group, Boston, Massachusetts; and University of Wisconsin, Madison, Wisconsin
| | - Patrick L. Remington
- From Brown University School of Public Health, Providence, Rhode Island; Tufts Medical Center and Mapi Group, Boston, Massachusetts; and University of Wisconsin, Madison, Wisconsin
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Dekker LH, van Dam RM, Snijder MB, Peters RJG, Dekker JM, de Vries JHM, de Boer EJ, Schulze MB, Stronks K, Nicolaou M. Comparable Dietary Patterns Describe Dietary Behavior across Ethnic Groups in the Netherlands, but Different Elements in the Diet Are Associated with Glycated Hemoglobin and Fasting Glucose Concentrations. J Nutr 2015; 145:1884-91. [PMID: 26136591 DOI: 10.3945/jn.114.207472] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2014] [Accepted: 06/08/2015] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Ethnic minority populations in Western societies suffer from a disproportionate burden of type 2 diabetes (T2D). Insight into the role of dietary patterns in T2D may assist public health nutrition efforts in addressing these health disparities. OBJECTIVE We explored the association between dietary patterns and biomarkers of T2D in 5 ethnic groups living in Amsterdam, Netherlands. METHODS A total of 3776 men and women aged 18-70 y of Dutch, South Asian Surinamese, African-Surinamese, Turkish, and Moroccan origin from the HELIUS (HEalthy LIfe in an Urban Setting) study were included. Diet was assessed by using a food-frequency questionnaire, and dietary patterns were derived separately per ethnic group. First, food group-based dietary patterns were derived by using principal components analysis and the association with glycated hemoglobin (HbA1c) and plasma fasting glucose was assessed by using multivariable linear regression. Second, biomarker-driven dietary patterns based on HbA1c and fasting glucose concentrations were derived by applying reduced rank regression. RESULTS Two comparable food group-based dietary patterns were identified in each ethnic group: a "meat and snack" pattern and a "vegetable" pattern. The meat-and-snack pattern derived within the Dutch origin population was significantly associated with HbA1c (β = 0.09; 95% CI: 0.00, 0.19) and fasting glucose (β = 0.18; 95% CI: 0.09, 0.26) concentrations. A biomarker-derived pattern characterized by red and processed meat was observed among Dutch-origin participants; however, among ethnic minority groups, this pattern was characterized by other foods including ethnicity-specific foods (e.g., roti, couscous). CONCLUSIONS Although similar food group dietary patterns were derived within 5 ethnic groups, the association of the meat-and-snack pattern with fasting glucose concentrations differed by ethnicity. Taken together with the finding of ethnic differences in biomarker-driven dietary patterns, our results imply that addressing T2D risk in multiethnic populations requires ethnicity-specific approaches.
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Affiliation(s)
| | - Rob M van Dam
- Saw Swee Hock School of Public Health and Departments of Medicine, Yong Loo Lin School of Medicine, National University of Singapore and National University Health System, Singapore
| | | | - Ron J G Peters
- Cardiology, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
| | - Jacqueline M Dekker
- Department of Epidemiology and Biostatistics and EMGO+ Institute for Health and Care Research, VU Medical Centre, Amsterdam, Netherlands
| | | | - Evelien J de Boer
- National Institute for Public Health and the Environment (RIVM), Center for Nutrition, Prevention, and Health Services, Bilthoven, Netherlands; and
| | - Matthias B Schulze
- Department of Molecular Epidemiology, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany
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Brown T, Smith S, Bhopal R, Kasim A, Summerbell C. Diet and physical activity interventions to prevent or treat obesity in South Asian children and adults: a systematic review and meta-analysis. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2015; 12:566-94. [PMID: 25584423 PMCID: PMC4306880 DOI: 10.3390/ijerph120100566] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2014] [Accepted: 12/18/2014] [Indexed: 11/18/2022]
Abstract
Background and Aims: The metabolic risks associated with obesity are greater for South Asian populations compared with White or other ethnic groups, and levels of obesity in childhood are known to track into adulthood. Tackling obesity in South Asians is therefore a high priority. The rationale for this systematic review is the suggestion that there may be differential effectiveness in diet and physical activity interventions in South Asian populations compared with other ethnicities. The research territory of the present review is an emergent, rather than mature, field of enquiry, but is urgently needed. Thus the aim of this systematic review and meta-analysis was to assess the effectiveness of diet and physical activity interventions to prevent or treat obesity in South Asians living in or outside of South Asia and to describe the characteristics of effective interventions. Methods: Systematic review of any type of lifestyle intervention, of any length of follow-up that reported any anthropometric measure for children or adults of South Asian ethnicity. There was no restriction on the type of comparator; randomised controlled trials, controlled clinical trials, and before-after studies were included. A comprehensive search strategy was implemented in five electronic databases: ASSIA, Cochrane Controlled Trials Register, Embase, Medline and Social Sciences Citation Index. The search was limited to English language abstracts published between January 2006 and January 2014. References were screened; data extraction and quality assessment were carried out by two reviewers. Results are presented in narrative synthesis and meta-analysis. Results: Twenty-nine studies were included, seven children, 21 adult and one mixed age. No studies in children under six were identified. Sixteen studies were conducted in South Asia, ten in Europe and three in USA. Effective or promising trials include physical activity interventions in South Asian men in Norway and South Asian school-children in the UK. A home-based, family-orientated diet and physical activity intervention improved obesity outcomes in South Asian adults in the UK, when adjusted for baseline differences. Meta-analyses of interventions in children showed no significant difference between intervention and control for body mass index or waist circumference. Meta-analyses of adult interventions showed significant improvement in weight in data from two trials adjusted for baseline differences (mean difference −1.82 kgs, 95% confidence interval −2.48 to −1.16) and in unadjusted data from three trials following sensitivity analysis (mean difference −1.20 kgs, 95% confidence interval −2.23 to −0.17). Meta-analyses showed no significant differences in body mass index and waist circumference for adults. Twenty of 24 intervention groups showed improvements in adult body mass index from baseline to follow-up; average change in high quality studies (n = 7) ranged from 0.31 to −0.8 kg/m2. There was no evidence that interventions were more or less effective according to whether the intervention was set in South Asia or not, or by socio-economic status. Conclusions: Meta-analysis of a limited number of controlled trials found an unclear picture of the effects of interventions on body mass index for South Asian children. Meta-analyses of a limited number of controlled trials showed significant improvement in weight for adults but no significant differences in body mass index and waist circumference. One high quality study in South Asian children found that a school-based physical activity intervention that was delivered within the normal school day which was culturally sensitive, was effective. There is also evidence of culturally appropriate approaches to, and characteristics of, effective interventions in adults which we believe could be transferred and used to develop effective interventions in children.
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Affiliation(s)
- Tamara Brown
- Obesity Related Behaviours (ORB) Research Group, School of Medicine, Pharmacy and Health, Wolfson Research Institute for Health and Wellbeing, Queen's Campus, Durham University, Stockton-on-Tees, TS17 6BH, UK.
| | - Sarah Smith
- Obesity Related Behaviours (ORB) Research Group, School of Medicine, Pharmacy and Health, Wolfson Research Institute for Health and Wellbeing, Queen's Campus, Durham University, Stockton-on-Tees, TS17 6BH, UK.
| | - Raj Bhopal
- Edinburgh Ethnicity and Health Research Group, Centre for Population Health Sciences, University of Edinburgh, Teviot Place, Edinburgh, EH89AG, UK.
| | - Adetayo Kasim
- Wolfson Research Institute for Health and Wellbeing, Queen's Campus, Durham University, Stockton-on-Tees TS17 6BH, UK.
| | - Carolyn Summerbell
- Obesity Related Behaviours (ORB) Research Group, School of Medicine, Pharmacy and Health, Wolfson Research Institute for Health and Wellbeing, Queen's Campus, Durham University, Stockton-on-Tees, TS17 6BH, UK.
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Ahlmark N, Whyte SR, Harting J, Tjørnhøj-Thomsen T. Recognition as care: a longitudinal study of Arabic immigrants’ experiences of diabetes training in Denmark. CRITICAL PUBLIC HEALTH 2014. [DOI: 10.1080/09581596.2014.953913] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Duijzer G, Haveman-Nies A, Jansen SC, ter Beek J, Hiddink GJ, Feskens EJM. SLIMMER: a randomised controlled trial of diabetes prevention in Dutch primary health care: design and methods for process, effect, and economic evaluation. BMC Public Health 2014; 14:602. [PMID: 24928217 PMCID: PMC4067380 DOI: 10.1186/1471-2458-14-602] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2014] [Accepted: 05/23/2014] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND Implementation of interventions in real-life settings requires a comprehensive evaluation approach. The aim of this article is to describe the evaluation design of the SLIMMER diabetes prevention intervention in a Dutch real-life setting. METHODS/DESIGN The SLIMMER study is a randomised, controlled intervention study including subjects aged 40 through 70 years with impaired fasting glucose or high risk of diabetes. The 10-month SLIMMER intervention involves a dietary and physical activity intervention, including case management and a maintenance programme. The control group receives usual health care and written information about a healthy lifestyle. A logic model of change is composed to link intervention activities with intervention outcomes in a logical order. Primary outcome is fasting insulin. Measurements are performed at baseline and after 12 and 18 months and cover quality of life, cardio-metabolic risk factors (e.g. glucose tolerance, serum lipids, body fatness, and blood pressure), eating and physical activity behaviour, and behavioural determinants. A process evaluation gives insight in how the intervention was delivered and received by participants and health care professionals. The economic evaluation consists of a cost-effectiveness analysis and a cost-utility analysis. Costs are assessed from both a societal and health care perspective. DISCUSSION This study is expected to provide insight in the effectiveness, including its cost-effectiveness, and delivery of the SLIMMER diabetes prevention intervention conducted in Dutch primary health care. Results of this study provide valuable information for primary health care professionals, researchers, and policy makers. TRIAL REGISTRATION The SLIMMER study is registered with ClinicalTrials.gov (NCT02094911) since March 19, 2014.
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Affiliation(s)
- Geerke Duijzer
- Division of Human Nutrition; Academic Collaborative Centre AGORA, Wageningen University, P.O. Box 8129, 6700 VE Wageningen, the Netherlands
| | - Annemien Haveman-Nies
- Division of Human Nutrition; Academic Collaborative Centre AGORA, Wageningen University, P.O. Box 8129, 6700 VE Wageningen, the Netherlands
- GGD Noord- en Oost-Gelderland (Community Health Service), P.O. Box 51, 7311 AB Apeldoorn, the Netherlands
| | - Sophia C Jansen
- GGD Noord- en Oost-Gelderland (Community Health Service), P.O. Box 51, 7311 AB Apeldoorn, the Netherlands
| | - Josien ter Beek
- GGD Noord- en Oost-Gelderland (Community Health Service), P.O. Box 51, 7311 AB Apeldoorn, the Netherlands
| | - Gerrit J Hiddink
- Strategic Communication, Sub-department Communication, Philosophy and Technology: Centre for Integrative Development, Social Sciences, Wageningen University, P.O. Box 8130, 6700 EW Wageningen, the Netherlands
| | - Edith JM Feskens
- Division of Human Nutrition; Academic Collaborative Centre AGORA, Wageningen University, P.O. Box 8129, 6700 VE Wageningen, the Netherlands
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Bhopal RS, Douglas A, Wallia S, Forbes JF, Lean MEJ, Gill JMR, McKnight JA, Sattar N, Sheikh A, Wild SH, Tuomilehto J, Sharma A, Bhopal R, Smith JBE, Butcher I, Murray GD. Effect of a lifestyle intervention on weight change in south Asian individuals in the UK at high risk of type 2 diabetes: a family-cluster randomised controlled trial. Lancet Diabetes Endocrinol 2014; 2:218-27. [PMID: 24622752 DOI: 10.1016/s2213-8587(13)70204-3] [Citation(s) in RCA: 96] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
BACKGROUND The susceptibility to type 2 diabetes of people of south Asian descent is established, but there is little trial-based evidence for interventions to tackle this problem. We assessed a weight control and physical activity intervention in south Asian individuals in the UK. METHODS We did this non-blinded trial in two National Health Service (NHS) regions in Scotland (UK). Between July 1, 2007, and Oct 31, 2009, we recruited men and women of Indian and Pakistani origin, aged 35 years or older, with waist circumference 90 cm or greater in men or 80 cm or greater in women, and with impaired glucose tolerance or impaired fasting glucose determined by oral glucose tolerance test. Families were randomised (using a random number generator program, with permuted blocks of random size, stratified by location [Edinburgh or Glasgow], ethnic group [Indian or Pakistani], and number of participants in the family [one vs more than one]) to intervention or control. Participants in the same family were not randomised separately. The intervention group received 15 visits from a dietitian over 3 years and the control group received four visits in the same period. The primary outcome was weight change at 3 years. Analysis was by modified intention to treat, excluding participants who died or were lost to follow-up. We used linear regression models to provide mean differences in baseline-adjusted weight at 3 years. This trial is registered, number ISRCTN25729565. FINDINGS Of 1319 people who were screened with an oral glucose tolerance test, 196 (15%) had impaired glucose tolerance or impaired fasting glucose and 171 entered the trial. Participants were in 156 family clusters that were randomised (78 families with 85 participants were allocated to intervention; 78 families with 86 participants were allocated to control). 167 (98%) participants in 152 families completed the trial. Mean weight loss in the intervention group was 1.13 kg (SD 4.12), compared with a mean weight gain of 0.51 kg (3.65) in the control group, an adjusted mean difference of -1.64 kg (95% CI -2.83 to -0.44). INTERPRETATION Modest, medium-term changes in weight are achievable as a component of lifestyle-change strategies, which might control or prevent adiposity-related diseases. FUNDING National Prevention Research Initiative, NHS Research and Development; NHS National Services Scotland; NHS Health Scotland.
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Affiliation(s)
- Raj S Bhopal
- Centre for Population Health Sciences, University of Edinburgh, Edinburgh, UK.
| | - Anne Douglas
- Centre for Population Health Sciences, University of Edinburgh, Edinburgh, UK
| | - Sunita Wallia
- Centre for Population Health Sciences, University of Edinburgh, Edinburgh, UK
| | - John F Forbes
- Centre for Population Health Sciences, University of Edinburgh, Edinburgh, UK
| | - Michael E J Lean
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
| | - Jason M R Gill
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
| | - John A McKnight
- Metabolic Unit, Anne Ferguson Building, Western General Hospital, Edinburgh, UK
| | - Naveed Sattar
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
| | - Aziz Sheikh
- Centre for Population Health Sciences, University of Edinburgh, Edinburgh, UK; Division of General Internal Medicine and Primary Care, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Sarah H Wild
- Centre for Population Health Sciences, University of Edinburgh, Edinburgh, UK
| | - Jaakko Tuomilehto
- Centre for Vascular Prevention, Danube-University Krems, Krems, Austria; Diabetes Prevention Unit, National Institute for Health and Welfare, Helsinki, Finland; King Abdulaziz University, Jeddah, Saudi Arabia
| | - Anu Sharma
- Centre for Population Health Sciences, University of Edinburgh, Edinburgh, UK
| | - Ruby Bhopal
- Centre for Population Health Sciences, University of Edinburgh, Edinburgh, UK
| | - Joel B E Smith
- Edinburgh Clinical Trials Unit, University of Edinburgh, Edinburgh, UK
| | - Isabella Butcher
- Centre for Population Health Sciences, University of Edinburgh, Edinburgh, UK
| | - Gordon D Murray
- Centre for Population Health Sciences, University of Edinburgh, Edinburgh, UK
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