Comparing Weight Loss-Maintenance Outcomes of a Worksite-Based Lifestyle Program Delivered via DVD and Face-to-Face: A Randomized Trial

Scoping Review of Interventional Studies in Chronic Disease for Native Hawaiian, Pacific Islander, and Filipino Populations in the United States

Native Hawaiians (NHs), Pacific Islanders (PIs), and Filipinos experience health disparities in the United States (US) and need interventions that work for them. The purpose of this paper is to present a review of interventions designed to address chronic disease in Native Hawaiian, Pacific Islander, and Filipino populations in the US that were tested for clinical impact through a randomized controlled trial (RCT). Articles were identified through a search of 4 databases, citation chasing, and colleagues. The 23 included articles reported on 21 interventions addressing 4 chronic conditions-cancer, obesity, cardiovascular disease, and diabetes. All projects were guided by advisory groups, and all interventions were theory-based and tailored to the population, with culturally- and language-appropriate educational materials delivered by same-race individuals in familiar church, club, or home settings. About half were tested through cluster RCT. The majority of the interventions were successful, confirming the value of developing and delivering interventions in partnership with community. Given the growing numbers of NHs, PIs, and Filipinos in the US, more investigational studies are needed to develop and test culturally tailored and grounded interventions that meet the health needs of these populations.

Interventions to prevent or manage obesity in Māori and Pacific adults: a systematic review and narrative synthesis

OBJECTIVES

Obesity and its sequelae are an increasing problem, disproportionally affecting Māori and Pacific peoples, secondary to multifactorial systemic causes, including the effects of colonisation and the impact of globalisation. There is limited synthesised evidence on interventions to address obesity in these populations. The objective of this review is to identify evaluated interventions for prevention and management of obesity amongst Māori and Pacific adults, assess the effectiveness of these interventions, and identify enablers and barriers to their uptake.

DESIGN

Systematic review of databases (Medline, PubMed, EMBASE, CINAHL, Scopus, CENTRAL), key non-indexed journals, and reference lists of included articles were searched from inception to June 2021. Eligibility criteria defined using a Population, Intervention, Control, Outcome format and study/publication characteristics. Quantitative and qualitative data were extracted and analysed using narrative syntheses. Study quality was assessed using modified GRADE approach.

RESULTS

From the 8190 articles identified, 21 were included, with 18 eligible for quantitative and five for qualitative analysis. The studies were heterogenous, with most graded as low quality. Some studies reported small but statistically significant improvements in weight and body mass index. Key enablers identified were social connection, making achievable sustainable lifestyle changes, culturally-centred interventions and incentives including money and enjoyment. Barriers to intervention uptake included difficulty in maintaining adherence to a programme due to intrinsic programme factors such as lack of social support and malfunctioning or lost equipment.

CONCLUSIONS

Normal weight trajectory is progressive increase over time. Modest weight loss or no weight gain after several years may have a positive outcome in lowering progression to diabetes, or improvement of glycaemic control in people with diabetes. We recommend urgent implementation of Māori and Pacific-led, culturally-tailored weight loss programmes that promote holistic, small and sustainable lifestyle changes delivered in socially appropriate contexts.

Feasibility and Effectiveness of a Worksite-Weight-Loss Program for Cancer Prevention among School-District Employees with Overweight and Obesity

The effects of Vibrant Lives, a 6-month worksite-weight-loss program, were examined in a cohort of school-district employees with overweight or obesity. The VL Basic (VLB) participants received materials and tailored text messages, the VL Plus (VLP) participants additionally received WIFI-enabled activity monitors and scales and participated in health challenges throughout the school year, and the VL Plus with Support (VLP + S) participants additionally received coaching support. The levels of program satisfaction and retention and changes in weight, physical activity (PA), and diet were compared across groups using Pearson chi-square tests, repeated-measure mixed models, and logistic regression. After the program, the VLB (n = 131), VLP (n = 87), and VLP + S (n = 88) groups had average weight losses of 2.5, 2.5, and 3.4 kg, respectively, and average increases in weekly PA of 40.4, 35.8, and 65.7 min, respectively. The VLP + S participants were more likely than the other participants to have clinically significant weight loss (≥3%; p = 0.026). Compared with the VLB participants, the VLP participants were less likely to meet the recommendations for consuming fast food (p = 0.022) and sugar-sweetened beverages (p = 0.010). The VLP and VLP + S participants reported higher program satisfaction than the VLB participants. The VL program facilitates weight loss among school-district employees with overweight and obesity by increasing their PA and healthy diet.

Study protocol for evaluating Brown Buttabean Motivation (BBM): a community-based, Pacific-driven approach to health

BACKGROUND

Buttabean Motivation (BBM) is a Pacific-led organisation which aims to reduce obesity amongst Pacific and Māori people in New Zealand enabling them to choose a healthy and active life-style for the duration of their lives, their children, their wider family and the community. BBM offers a holistic approach to weight loss, recognising that mental health, family and cultural factors all play essential and critical role in nutrition and physical activity patterns. This study aims to evaluate the effectiveness of BBM for sustained health and wellbeing outcomes among its predominantly Pacific and Māori participants for both general BBM members and those with morbid obesity attending the 'From the Couch' programme.

METHODS

Quasi-experimental pre-post quantitative cohort study design with measured or self-reported weight at various time intervals for both cohorts. Weight will be analysed with general linear mixed model for repeated measures, and compared with a prediction model generated from the literature using a mixed method meta-analysis. The secondary outcome is change in pre- and post scores of Māori scale of health and well-being, Hua Oranga.

DISCUSSION

Multiple studies have shown that many diet and physical activity programmes can create short-term weight loss. The fundamental question is whether BBM members maintain weight loss over time. In New Zealand, Pacific and Māori engagement in health enhancing programmes remains an important strategy for achieving better health and wellbeing outcomes, and quality of life. Internationally, the collectivist cultures of indigenous and migrant and minority populations, living within dominant individualist western ideologies, have much greater burdens of obesity. If BBM members demonstrate sustained weight loss, this culturally informed community-based approach could benefit to other indigenous and migrant populations.

TRIAL REGISTRATION

Australian New Zealand Clinical Trial Registry ACTRN12621000931875 (BBM general members) First submitted 10 May 2021, registration completed 15 July 2021. ACTRN12621001676808 7 (From the Couch) First submitted 28 October 2021, registration completed 7 December 2021.

Cost Effectiveness of a Cultural Physical Activity Intervention to Reduce Blood Pressure Among Native Hawaiians with Hypertension

OBJECTIVE

The aim of this study was to calculate the costs and assess whether a culturally grounded physical activity intervention offered through community-based organizations is cost effective in reducing blood pressure among Native Hawaiian adults with hypertension.

METHODS

Six community-based organizations in Hawai'i completed a randomized controlled trial between 2015 and 2019. Overall, 263 Native Hawaiian adults with uncontrolled hypertension (≥ 140 mmHg systolic, ≥ 90 mmHg diastolic) were randomized to either a 12-month intervention group of hula (traditional Hawaiian dance) lessons and self-regulation classes, or to an education-only waitlist control group. The primary outcome was change in systolic blood pressure collected at baseline and 3, 6, and 12 months for the intervention compared with the control group. Incremental cost-effectiveness ratios (ICERs) were calculated for primary and secondary outcomes. Non-parametric bootstrapping and sensitivity analyses evaluated uncertainty in parameters and outcomes.

RESULTS

The mean intervention cost was US$361/person, and the 6-month ICER was US$103/mmHg reduction in systolic blood pressure and US$95/mmHg in diastolic blood pressure. At 12 months, the intervention group maintained reductions in blood pressure, which exceeded reductions for usual care based on blood pressure outcomes. The change in blood pressure at 12 months resulted in ICERs of US$100/mmHg reduction in systolic blood pressure and US$93/mmHg in diastolic blood pressure. Sensitivity analyses suggested that at the estimated intervention cost, the probability that the program would lower systolic blood pressure by 5 mmHg was 67 and 2.5% at 6 and 12 months, respectively.

CONCLUSION

The 6-month Ola Hou program may be cost effective for low-resource community-based organizations. Maintenance of blood pressure reductions at 6 and 12 months in the intervention group contributed to potential cost effectiveness. Future studies should further evaluate the cost effectiveness of indigenous physical activity programs in similar settings and by modeling lifetime costs and quality-adjusted life-years.

TRIAL REGISTRATION NUMBER

NCT02620709.

A Cultural Dance Program Improves Hypertension Control and Cardiovascular Disease Risk in Native Hawaiians: A Randomized Controlled Trial

BACKGROUND

Native Hawaiians have higher hypertension (HTN) and cardiovascular disease (CVD) rates than non-Hispanic whites, calling for culturally responsive interventions to close this gap.

PURPOSE

We tested the effects of a 6-month behavioral intervention, a cultural dance program based on hula (the customary dance of Hawai'i), for improving blood pressure (BP) and CVD risk among Native Hawaiians with uncontrolled HTN.

METHODS

In a randomized controlled trial, we tested the effects of the hula-based intervention among 263 Native Hawaiians with uncontrolled HTN (systolic ≥ 140 or ≥ 130 mmHg if diabetes) and no CVD at enrollment. All participants received a brief culturally tailored heart health education before random assignment to the hula-based intervention (n = 131) or the education-only waitlist control (n = 132). Intervention received hula lessons and group-based activities for 6 months. Control received only 1-week education through 6 months.

RESULTS

Intervention yielded greater reductions in systolic (-15.3 mmHg) and diastolic (-6.4 mmHg) BP than control (-11.8 and -2.6 mmHg, respectively) from baseline to 6 months (p < .05). At 6 months, 43% of intervention participants compared to 21% of controls achieved a HTN stage <130/80 mmHg (p < .001). The 10-year CVD risk reduction was two times greater for the intervention group than the control group based on the Framingham Risk Score calculator. All improvements for intervention participants were maintained at 12 months.

CONCLUSIONS

This trial represents one of the few rigorously conducted examinations of an Indigenous practice leveraged for health promotion, with implications for other ethnic populations.

Health promotion interventions supporting Indigenous healthy ageing: a scoping review

Aging well is a priority in Canada and globally, particularly for older Indigenous adults experiencing an increased risk of chronic conditions. Little is known about health promotion interventions for older Indigenous adults and most literature is framed within Eurocentric paradigms that are not always relevant to Indigenous populations. This scoping review, guided by Arksey and O'Malley's framework and the PRISMA-ScR Checklist, explores the literature on Indigenous health promoting interventions across the lifespan, with specific attention to Indigenous worldview and the role of older Indigenous adults within these interventions. To ensure respectful and meaningful engagement of Indigenous peoples, articles were included in the Collaborate or Shared Leadership categories on the Continuum of Engagement. Fifteen articles used Indigenous theories and frameworks in the study design. Several articles highlighted engaging Elders as advisors in the design and/or delivery of programs however only five indicated Elders were active participants. In this scoping review, we suggest integrating a high level of community engagement and augmenting intergenerational approaches are essential to promoting health among Indigenous populations and communities. Indigenous older adults are keepers of essential knowledge and must be engaged (as advisors and participants) in intergenerational health promotion interventions to support the health of all generations.

Technology-based Health Education Resources for Indigenous Adults: A Scoping Review

Indigenous peoples experience a disparate burden of chronic diseases and lower access to health education resources compared with other populations. Technology can increase access to health education resources, potentially reducing health inequities in these vulnerable populations. Although many Indigenous communities have limited access to the Internet, this barrier is decreasing as tribes and Indigenous-serving organizations work to improve TechQuity. Using Arksey and O'Malley's framework, we conducted a scoping literature review to identify technology-based health education interventions designed for Indigenous adults. We searched multiple databases, limiting papers to those written in English, describing interventions for participants 18 years of age or older, and published between 1999-2020. The review yielded 229 articles, nine of which met eligibility criteria. Findings suggest a paucity of technology-based health education interventions designed for Indigenous peoples and limited testing of the existing resources. Future health disparity research should focus on development and rigorous testing of such interventions.

The characteristics of behaviour change interventions used among Pacific people: a systematic search and narrative synthesis

Background

Pacific people living in New Zealand, Australia, United States, and the Pacific region continue to experience a disproportionately high burden of long-term conditions, making culturally contextualised behaviour change interventions a priority. The primary aim of this study was to describe the characteristics of behaviour change interventions designed to improve health and effect health behaviour change among Pacific people.

Methods

Electronic searches were carried out on OVID Medline, PsycINFO, PubMed, Embase and SCOPUS databases (initial search January 2019 and updated in January 2020) for studies describing an intervention designed to change health behaviour(s) among Pacific people. Titles and abstracts of 5699 papers were screened; 201 papers were then independently assessed. A review of full text was carried out by three of the authors resulting in 208 being included in the final review. Twenty-seven studies were included, published in six countries between 1996 and 2020.

Results

Important characteristics in the interventions included meaningful partnerships with Pacific communities using community-based participatory research and ensuring interventions were culturally anchored and centred on collectivism using family or social support. Most interventions used social cognitive theory, followed by popular behaviour change techniques instruction on how to perform a behaviour and social support (unspecified). Negotiating the spaces between Eurocentric behaviour change constructs and Pacific worldviews was simplified using Pacific facilitators and talanoa. This relational approach provided an essential link between academia and Pacific communities.

Conclusions

This systematic search and narrative synthesis provides new and important insights into potential elements and components when designing behaviour change interventions for Pacific people. The paucity of literature available outside of the United States highlights further research is required to reflect Pacific communities living in New Zealand, Australia, and the Pacific region. Future research needs to invest in building research capacity within Pacific communities, centering self-determining research agendas and findings to be led and owned by Pacific communities.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12889-021-10420-9.

Use of Technology-Based Interventions in the Treatment of Patients with Overweight and Obesity: A Systematic Review

Introduction: Obesity is one of the most important health problems worldwide. The prevalence of obesity has increased dramatically in the last decades and is now recognized as a global epidemic. Given the dramatic consequences of obesity, new intervention approaches based on the potential of technologies have been developed. Methods: We conducted a systematic review of studies using PubMed, ScienceDirect, Cochrane Library, and MedLine databases to assess how different types of technologies may play an important role on weight loss in obese patients. Results: Forty-seven studies using different types of technologies including smartphones, app, websites, virtual reality and personal digital assistant were included in the review. About half of interventions (47%) found a significant effect of the technology-based interventions for weight lost in obese patients. The provision of feedback could also be effective as a complement to interventions carried out using technology to promote weight loss. Conclusions: The use of technologies can be effective to increase weight loss in patients with obesity improving treatment adherence through self-monitoring.

Culturally responsive approaches to health promotion for Native Hawaiians and Pacific Islanders

CONTEXT

Obesity, diabetes and cardiovascular disease (CVD) have reached epidemic proportions among Native Hawaiians/Pacific Islanders (NHPI). Culturally responsive interventions that account for their interpersonal, sociocultural and socioeconomic realities are a public health priority.

OBJECTIVE

To describe cultural adaptation and culturally grounded approaches to developing health interventions for NHPI and to review the culturally responsive approaches used by, and outcomes from, two long-standing community-based participatory research projects (CBPR) in Hawai'i: PILI 'Ohana and KāHOLO Projects.

METHODS

A literature review of 14 studies from these two projects was done to exemplify the methods applied to culturally adapting existing evidence-based interventions and to developing novel interventions from the 'ground up' to address health disparities in NHPI. Of the 14 studies reviewed, 11 were studies of the clinical and behavioural outcomes of both types of interventions.

RESULTS

Both culturally adapted and culturally grounded approaches using community-based assets and NHPI cultural values/practices led to establishing sustainable and scalable interventions that significantly improved clinical measures of obesity, diabetes and hypertension.

CONCLUSION

Several recommendations are provided based on the lessons learned from the PILI 'Ohana and KāHOLO Projects. Multidisciplinary and transdisciplinary research using CBPR approaches are needed to elucidate how human biology is impacted by societal, environmental and psychological factors that increase the risk for cardiometabolic diseases among NHPI to develop more effective health promotion interventions and public health policies.