A multi-level, multi-component obesity intervention (Obesity Prevention and Evaluation of InterVention Effectiveness in NaTive North Americans) decreases soda intake in Native American adults.

OBJECTIVE: To evaluate the impact of a multi-level, multi-component (MLMC) adult obesity intervention on beverage intake in Native American adults living in five geographically and culturally diverse tribal communities. DESIGN: A 14-month, community-randomised, MLMC design was utilised, with three communities randomised to Intervention and two communities randomised to Comparison. FFQ were administered pre- and post-interventions, and difference-in-differences (DiD) analysis was used to assess intervention impact on beverage intake. SETTING: The intervention took place within food stores, worksites, schools and selected media outlets located in the five communities. Key activities included working with store owners to stock healthy beverages, display and dispersal of educational materials, support of policies that discouraged unhealthy beverage consumption at worksites and schools and taste tests. PARTICIPANTS: Data were collected from 422 respondents between the ages of 18 and 75 living in the five communities pre-intervention; of those, 299 completed post-intervention surveys. Only respondents completing both pre- and post-intervention surveys were included in the current analysis. RESULTS: The DiD for daily servings of regular, sugar-sweetened soda from pre- to post-intervention was significant, indicating a significant decrease in Intervention communities (P < 0·05). No other changes to beverage intake were observed. CONCLUSIONS: Large, MLMC obesity interventions can successfully reduce the intake of regular, sugar-sweetened soda in Native American adults. This is important within modern food environments where sugar-sweetened beverages are a primary source of added sugars in Native American diets.

Work, worksites, and wellbeing among North American Indian women: a qualitative study.

The purpose of this study was to understand what factors influenced work-family balance and related health behaviors among a sample of rural North American Indian women. We interviewed 89 women through both in-depth interviews and focus groups across four tribal communities in the American Southwest and Upper Midwest between July 2010 and August 2011. Interviews were transcribed, coded, and analyzed for emerging themes related to work- family demands placed on women and resources available to cope with those demands. Three prominent themes emerged: structural characteristics (the context of rural reservation life), role stressors (women's multiple and conflicting roles) and the influence of social support (communal nature of care in the family and institutional support in the workplace). We found that women in participating rural reservation communities often acted as primary caregivers for both immediate and extended family, and often placed the needs of others before themselves. The context of rural reservations, with high rates of unemployment, poverty, and chronic illnesses associated with the collective trauma of colonization, placed high demands on female caregivers. Social support from within the workplace, family, and cultural traditions helped some female caregivers balance the demands of home and work. Tribal worksites could be a resource for promoting health and work-life balance by being responsive to the particular demands placed on women that often interfere with engaging in positive health behaviors in general and tribal wellness programs in particular.

OPREVENT2: Design of a multi-institutional intervention for obesity control and prevention for American Indian adults.

BACKGROUND: Obesity and other nutrition-related chronic disease rates are high in American Indian (AI) populations, and an urgent need exists to identify evidence-based strategies for prevention and treatment. Multi-level, multi-component (MLMC) interventions are needed, but there are significant knowledge gaps on how to deliver these types of interventions in low-income rural AI communities. METHODS: OPREVENT2 is a MLMC intervention targeting AI adults living in six rural reservations in New Mexico and Wisconsin. Aiming to prevent and reduce obesity in adults by working at multiple levels of the food and physical activity (PA) environments, OPREVENT2 focuses on evidence-based strategies known to increase access to, demand for, and consumption of healthier foods and beverages, and increase worksite and home-based opportunities for PA. OPREVENT2 works to create systems-level change by partnering with tribal stakeholders, multiple levels of the food and PA environment (food stores, worksites, schools), and the social environment (children as change agents, families, social media). Extensive evaluation will be conducted at each level of the intervention to assess effectiveness via process and impact measures. DISCUSSION: Novel aspects of OPREVENT2 include: active engagement with stakeholders at many levels (policy, institutional, and at multiple levels of the food and PA system); use of community-based strategies to engage policymakers and other key stakeholders (community workshops, action committees); emphasis on both the built environment (intervening with retail food sources) and the social environment. This paper describes the design of the intervention and the evaluation plan of the OPREVENT2. TRIAL REGISTRATION: Clinical Trial Registration: NCT02803853 (June 10, 2016).

"We're Changing Our Ways": Women's Coping Strategies for Obesity Risk-reducing Behaviors in American Indian Households.

This article reveals women caregivers' perceptions and coping strategies to improve households' food and physical activity habits. Results emerged from the pre-intervention formative research phase of a multi-site, multi-level obesity prevention pilot intervention on American Indian (AI) reservations. Using purposive sampling, 250 adults and children participated in qualitative research. Results reveal that having local institutional support was a key structural facilitator. 'Family connectedness' emerged as a key relational facilitator. Hegemony of systems, food deserts, transportation, and weather were key structural barriers; Childcare needs and time constraints were key relational barriers. Women's coping strategies included planning ahead, maximizing, apportioning, tempting healthy, and social support. Findings informed the development and implementation of a novel obesity prevention pilot intervention tailored for each participating AI community addressing culturally relevant messages, institutional policies, and programs. We conclude with future consideration for comparative, ethnicity-based, class-based, and gender-specific studies on women's coping strategies for household health behaviors.

Patterns of Food Consumption are Associated with Obesity, Self-Reported Diabetes and Cardiovascular Disease in Five American Indian Communities.

The relationship between dietary patterns and chronic disease is underexplored in indigenous populations. We assessed diets of 424 American Indian (AI) adults living in 5 rural AI communities. We identified four food patterns. Increased prevalence for cardiovascular disease was highly associated with the consumption of unhealthy snacks and high fat-food patterns (OR 3.6, CI=1.06, 12.3; and OR 6.0, CI=1.63, 22.1), respectively. Moreover, the food-consumption pattern appeared to be different by community setting (p<.05). We recommend culturally appropriate community-intervention programs to promote healthy behavior and to prevent diet-related chronic diseases in this high-risk population.

High levels of household food insecurity on the Navajo Nation.

OBJECTIVE: To assess levels of and identify factors associated with food insecurity on the Navajo Nation. DESIGN: A cross-sectional study was conducted utilizing the ten-item Radimer/Cornell food insecurity instrument. Sociodemographic, psychosocial and anthropometric data were collected. SETTING: Navajo Nation, USA. SUBJECTS: Two hundred and seventy-six members of the Navajo Nation were randomly selected at food stores and other community locations. RESULTS: Of the sample, 76·7% had some level of food insecurity. Less education (mean years of schooling: P = 0·0001; non-completion of higher education: P = 0·0003), lower full-time employment rates (P = 0·01), and lower material style of life (P = 0·0001), food knowledge (P = 0·001) and healthy eating self-efficacy (P < 0·0001) scores were all positively associated with food insecurity. Perceived expensiveness (P < 0·0001) and perceived inconvenience (P = 0·0001) of healthy choices were also positively associated with food insecurity. CONCLUSIONS: Food insecurity rates on the Navajo Nation are the highest reported to date in the USA and are likely attributable to the extremely high rates of poverty and unemployment. Reducing food insecurity on the Navajo Nation will require increasing the availability of affordable healthy foods, addressing poverty and unemployment, and providing nutrition programmes to increase demand.

A food store-based environmental intervention is associated with reduced BMI and improved psychosocial factors and food-related behaviors on the Navajo nation.

The prevalence of obesity is significantly higher among American Indians (AIs) and is associated with increased rates of diabetes, hypertension, and cardiovascular disease. We implemented a 14-mo intervention trial (Navajo Healthy Stores) on the Navajo Nation that sought to increase availability of healthier foods in local food stores and to promote these foods at the point of purchase and through community media. We divided the Navajo Nation into 10 store regions, half of which were randomized to intervention and half to comparison. We evaluated the program by using a pre-post sample of systematically sampled adult Navajo consumers (baseline, n = 276; postintervention, n = 145). Intervention impact was examined by analyzing pre-post differences by intervention group and by intervention exposure level. When intervention and comparison groups were compared, only body mass index (BMI) showed a trend toward impact of the intervention (P = 0.06). However, greater exposure to the intervention was associated with significantly reduced BMI (P ≤ 0.05) and improved healthy food intentions (P ≤ 0.01), healthy cooking methods (P ≤ 0.05), and healthy food getting (P ≤ 0.01). With increasing exposure, the odds of improving overweight or obese status was 5.02 (95% CI: 1.48, 16.99; P ≤ 0.01) times the odds of maintaining or worsening overweight or obese status. In summary, a food store intervention was associated with reduced overweight/obesity and improved obesity-related psychosocial and behavioral factors among those persons most exposed to the intervention on an AI reservation.

Cardiometabolic risk among rural Native American adults in a large multilevel multicomponent intervention trial.

This cross-sectional analysis of the baseline evaluation sample of the Obesity Prevention and Evaluation of InterVention Effectiveness in Native Americans 2 (OPREVENT2) study included 601 Native American adults ages 18-75 living in rural reservation communities in the Midwest and Southwest United States. Participants completed a self-report questionnaire for individual and family history of hypertension, heart disease, diabetes and obestiy. Body mass index (BMI), percent body fat, and blood pressure were measured by trained research staff. About 60% of respondents had a BMI >30 kg/m2. Approximately 80% had a waist-to-hip ratio and percent body fat classified as high risk, and nearly 64% had a high-risk blood pressure measurement. Although a large proportion of participants reported a family history of chronic disease and had measurements that indicated elevated risk, relatively few had a self-reported diagnosis of any chronic disease. Future studies should examine potential connections between healthcare access and discordance in self-reported versus measured disease risks and diagnoses.

A Systems Approach to Identify Factors Influencing Participation in Two Tribally-Administered WIC Programs.

Native American populations experience highly disproportionate rates of poor maternal-child health outcomes. The WIC program aims to safeguard health by providing greater access to nutritious foods, but for reasons not well understood, participation in many tribally-administered WIC programs has declined to a greater extent compared to the national average decline in participation over the last decade. This study aims to examine influences on WIC participation from a systems perspective in two tribally-administered WIC programs. In-depth interviews were conducted with WIC-eligible individuals, WIC staff, tribal administrators, and store owners. Interview transcripts underwent qualitative coding, followed by identifying causal relationships between codes and iterative refining of relationships using Kumu. Two community-specific causal loop diagrams (CLDs) were developed and compared. Findings from interviews in the Midwest yielded a total of 22 factors connected through 5 feedback loops, and in the Southwest a total of 26 factors connected through 7 feedback loops, resulting in three overlapping themes: Reservation and Food Store Infrastructure, WIC Staff Interactions and Integration with the Community, and State-level Administration and Bureaucracy. This study demonstrates the value of a systems approach to explore interconnected barriers and facilitators that can inform future strategies and mitigate declines in WIC participation.

Sociodemographic and Psychosocial Factors Associated With Diet Quality in 6 Rural Native American Communities.

OBJECTIVE: To identify psychosocial and household environmental factors related to diet quality among Native Americans (NA). DESIGN: Analysis of baseline data from a community-randomized obesity prevention trial. SETTING: Six rural NA communities in the Midwest and the Southwestern US. PARTICIPANTS: A total of 580 tribal members, aged 18-75 years old (mean 45 years), 74% female, self-identified as the main household food purchaser. VARIABLES MEASURED: Diet quality (Healthy Eating Index-2015 [HEI]) was derived from a semiquantitative food frequency questionnaire. Sociodemographic, psychosocial, and home food environment factors were assessed via interviewer-administered questionnaires. ANALYSIS: One-way ANOVA, linear regression models, and 2-tailed t tests compared HEI scores among sociodemographic categories. Multiple linear regression models assessed the relationship between psychosocial factors, home food environment, and HEI. RESULTS: Prevalence of obesity was 59%. Mean HEI-2015 score was 49.3 (SD = 8.1). Average HEI scores were 3.0 points lower in smokers than nonsmokers (P < 0.001), and 2.2 points higher in females than males (P < 0.01). Higher self-efficacy (ß = 0.97; P < 0.001) and healthier eating intentions (ß = 0.78; P < 0.001) were positively associated with HEI. Healthier household food patterns score was associated with higher HEI (ß = 0.48; P < 0.01). CONCLUSIONS AND IMPLICATIONS: Psychosocial factors were associated with diet quality, a finding that supports the use of social-cognitive intervention approaches in rural NA communities in the Midwest and Southwest, and warrants evaluation in other locations. There remains a need to elucidate the association between the Food Distribution Program on Indian Reservations and diet quality.

Exposure to a Multilevel, Multicomponent Obesity Prevention Intervention (OPREVENT2) in Rural Native American Communities: Variability and Association with Change in Diet Quality.

The OPREVENT2 obesity prevention trial was a multilevel multicomponent (MLMC) intervention implemented in rural Native American communities in the Midwest and Southwest U.S. Intervention components were delivered through local food stores, worksites, schools, community action coalitions, and by social and community media. Due to the complex nature of MLMC intervention trials, it is useful to assess participants' exposure to each component of the intervention in order to assess impact. In this paper, we present a detailed methodology for evaluating participant exposure to MLMC intervention, and we explore how exposure to the OPREVENT2 trial impacted participant diet quality. There were no significant differences in total exposure score by age group, sex, or geographic region, but exposure to sub-components of the intervention differed significantly by age group, sex, and geographical region. Participants with the highest overall exposure scores showed significantly more improvement in diet quality from baseline to follow up compared to those who were least exposed to the intervention. Improved diet quality was also significantly positively associated with several exposure sub-components. While evaluating exposure to an entire MLMC intervention is complex and imperfect, it can provide useful insight into an intervention's impact on key outcome measures, and it can help identify which components of the intervention were most effective.

Individual- and household-level factors associated with fruit, vegetable, and dietary fiber adequacy among Native American adults in 6 reservation communities.

This study utilized baseline data collected in 2017 from the OPREVENT2 trial, which included 540 Native Americans in six Midwest and Southwest reservation communities. The objective was to identify correlates of fruit, vegetable, and dietary fiber adequacy among participants 18-75 years old who self-identified as the main food purchaser or preparer in their household. Mean daily servings of fruits and vegetables and grams of dietary fiber were quantified based on a 30-day semi-quantitative food frequency questionnaire. Participants consumed an average of 0.5 (±0.4) cup-equivalent servings of fruit, 2.5 (±1.8) cup-equivalent servings of vegetables, and 15.5 (±8.9) grams of fiber per day. <2% of the study population met the 2015-2020 Dietary Guidelines for Americans recommendations for fruit consumption, while 12 and 42% met recommendations for dietary fiber and vegetable consumption, respectively. Females had a prevalence ratio 1.4 times greater than males for adequate intakes of vegetables (p = 0.008) and over 6 times greater for dietary fiber (p < 0.001). Participants over the age of 30 were about twice as likely to meet dietary fiber recommendations (p = 0.031) compared to those 30 years and younger. Participants receiving food assistance from the USDA's Food Distribution Program on Indian Reservations (FDPIR) were nearly twice as likely as non-FDPIR recipients to meet recommendations for dietary fiber (p = 0.008). These findings can help guide the development of targeted interventions to improve diet quality; however, further work is needed to understand and address underlying reasons for low fruit consumption in these rural reservation communities.

Dietary intake and development of a quantitative FFQ for a nutritional intervention to reduce the risk of chronic disease in the Navajo Nation.

OBJECTIVES: To characterize dietary intake for Navajo adults, to identify foods for a nutritional intervention programme and to develop a culturally appropriate quantitative FFQ (QFFQ) for evaluating the impact of the intervention programme. DESIGN: A cross-sectional study was conducted using 24 h dietary recalls. SETTING: Navajo Nation, USA. SUBJECTS: Seventy-nine (forty men, thirty-nine women) aged 18-71 years completed 24 h dietary recalls. RESULTS: The median daily energy intake was 11 585 kJ (2769 kcal) for men and 8519 kJ (2036 kcal) for women. The greatest contributors to energy were fried potato dishes, sweetened juices/drinks, regular pop, bread, tortillas and burritos (contributing approximately 30 % of total energy intake). The mean number of meat servings was over twice that recommended (2-3 servings recommended v. 7.4 consumed by men and 5.3 by women). The mean servings of vegetables were well below the recommendation of 3-5 servings (1.0 serving for men and 1.2 servings for women). The final QFFQ contains 177 food and drink items. CONCLUSIONS: Our study found that major contributors to total energy, fat and sugar intakes in the Navajo Nation included mostly processed meats and sweetened drinks. A nutritional intervention will target these foods and promote acceptable and healthier alternatives. In addition, we were able to identify foods and beverages for inclusion on a culturally appropriate QFFQ to assess dietary intake. This QFFQ will be used to evaluate the effectiveness of our intervention on food and food group consumption and nutrient intake.

OPREVENT (Obesity Prevention and Evaluation of InterVention Effectiveness in NaTive North Americans): Design of a Multilevel, Multicomponent Obesity Intervention for Native American Adults and Households.

Obesity prevalence is high in Native American (NA) adults, and there is a critical need to establish and implement evidence-based social, behavioral, and policy interventions that are theoretically informed. The use of multilevel, multicomponent (MLMC) interventions has been shown to be an effective strategy for comprehensive health behavior change; however, there is little guidance available in the literature to facilitate implementation in this underserved and understudied population. To decrease obesity and related comorbidities in NA adults, an MLMC intervention called OPREVENT (Obesity Prevention and Evaluation of InterVention Effectiveness in NaTive North Americans) was implemented in 5 rural NA communities to modify the food-purchasing environment, improve diet, and increase physical activity (PA). Five NA communities across the Upper Midwest and Southwest United States were randomly assigned to Immediate (n = 3) or Delayed (n = 2) Intervention. OPREVENT was implemented in Immediate Intervention community food stores, worksites, schools, and media over 1 y. A community-randomized controlled trial was used to evaluate intervention impact in adults at the individual and institutional levels, with individual-level data being collected on diet, PA, and psychosocial variables at baseline and follow-up; and institutional-level data being collected on food stores, worksites, and schools, media, and process measures. The OPREVENT intervention was one of the first MLMC obesity interventions in this population and provides evidence-based practices for future program development. The purpose of this article is to describe the design, implementation, and evaluation of OPREVENT. This trial was registered at isrctn.com as ISRCTN76144389.

Self-Reported Physical Activity Among American Indian Adults From Two Diverse Regions.

PURPOSE: Physical activity may be a protective factor against the disproportionate rates of chronic diseases faced by American Indians. Nevertheless, few studies report any cultural adoptions made to capture physical activity behaviors among this hard-to-reach population. Existing studies reporting the prevalence of physical activity among American Indians are often aggregated and tend to obscure regional, local, and tribal-level variations. This study examines the prevalence of physical activity and inactivity levels, along with associated factors, among rural dwelling American Indian adults from 2 distinct regions. METHODS: Baseline self-reported data were collected using a culturally modified version of the International Physical Activity Questionnaire (IPAQ) short form during the Obesity Research Prevention and Evaluation of Intervention Effectiveness in Native North Americans trial (OPREVENT) among rural American Indian adults (aged 18-75 years) from 5 tribal communities in Michigan and New Mexico. FINDINGS: Most participants were classified as moderately physically active (43.5%), and the majority reported access to physical activity facilities (83.5%). Michigan participants reported engaging in more moderate and total physical activity than those in New Mexico (P < .001) and reported spending less time sitting (P < .001). CONCLUSIONS: Differences in physical activity among the American Indian communities may be due to regional variations in occupations, climate, and tribal and community support and infrastructure. The unexpected high level of activity evokes uncertainty in the accuracy and appropriateness of the data collection instrument. Research is needed to understand culturally appropriate approaches to measure physical activity and inactivity among rural American Indians.

Personal, social, and environmental correlates of physical activity in Native American women.

BACKGROUND: Rates of physical activity among Native American women are low, and few studies have assessed the factors associated with physical activity in this population. The purpose of this study was to determine the relationship among physical activity and various personal, social environmental, and physical environmental factors in Native American women. METHODS: As part of the multisite study of the Women's Cardiovascular Health Network Project, 350 Native American women from the Southwest completed a face-to-face interview. Participants ranged in age from 20 to 50 years. Logistic regression analyses were conducted using physical activity as the dependent variable. RESULTS: Participants represented a variety of tribal groups, with most being Navajo or Pueblo. More than one half (55.1%) met moderate or vigorous physical activity recommendations, with 32.0% being insufficiently active, and 12.9% being inactive. Personal factors related to being more active included not having a marital partner, self-reporting excellent or very good health, and having very high physical activity self-efficacy. In terms of social environmental factors, women were more likely to meet physical activity recommendations if they knew people who exercised, if they saw people exercising in their neighborhood, and if they attended religious services. Physical environmental factors that were examined were not associated with meeting physical activity recommendations. CONCLUSIONS: Social environmental factors were significantly associated with physical activity in Native American women. The results emphasize the importance of support from family, friends, communities, and leaders in increasing physical activity among this group of women.

Pathways process evaluation results: a school-based prevention trial to promote healthful diet and physical activity in American Indian third, fourth, and fifth grade students.

BACKGROUND: Pathways was a large-scale, multisite, 3-year, study testing a school-based intervention designed to lower percent body fat in American Indian children. METHODS: At the 21 intervention schools process evaluation data were collected for training of school personnel; implementation of the classroom and physical activity curricula; implementation of the project's food service guidelines in the school cafeterias; adult participation in the family events; and, students' perceived exposure to the Pathways interventions. RESULTS: Students received about 93% of the classroom curriculum lessons. The minimum requirement of physical education being taught three times per week for at least 30 minutes duration was achieved by the fifth grade. The implementation of the food service behavioral guidelines increased from 51% in the third grade to 87% in the fifth grade. The family events had lower than anticipated adult participation. The participation rates were 45% during the third grade, and 41 and 63% during the fourth and fifth grades, respectively. There was a significant difference between intervention and control students' perceived exposure to Pathways type interventions. CONCLUSION: The Pathways interventions were successfully implemented with good reach, high extent, and fidelity.