A Systematic Review of Obesity Prevention Intervention Studies among Immigrant Populations in the US

Effective medical treatment of obesity among immigrant women in primary care

Background

The prevalence of obesity among the general US adults is 42 %. With increasing immigrant population in the US, the obesity burden among immigrants in the US has been reported to approach or exceed that of the general US population. To our knowledge, this is the first study to report obesity treatment among immigrants in the US. The study aims to evaluate the effectiveness of obesity treatment among immigrant women in primary care at a safety-net academic health center in the US.

Methods

This was a retrospectively, electronic medical record chart review of patients who had virtual weight management visits in a primary care setting. Self-reported anthropometric and demographic data were used. Primary outcomes were changes in weight and BMI from initial to follow-up visits as well as bodyweight percentage change from initial weight. Secondary outcomes were ≥5 % and ≥10 % weight reduction. Chi-square or Fisher's exact tests were used for independent categorical variables. Paired t-tests were performed to evaluate the changes in weight and BMI.

Results

The study found average weight reduction of 8.6 kg (100.2-91.6, p < 0.01) which corresponds to an average of 8.7 % weight reduction among immigrant women in the program. The overall average BMI decreased by 3.4 kg/m2 (38.1-34.1, p < 0.01). In the study, 85 % lost 5 % or more, and 42 % lost 10 % or more of their initial weight.

Conclusion

Immigrant women followed for weight management in primary care lost significant weight and BMI, and significant proportion of them achieved clinically meaningful weight reduction. Future large sample size and randomized controlled studies are needed to confirm the findings.

Does cardiorespiratory fitness moderate the relationship between overweight, cardiovascular risk markers and mental health among forcibly displaced individuals living in a Greek refugee camp?

Objectives

Refugees may have an increased risk of developing overweight/obesity as they often experience a nutritional transition. Because maintaining good cardiorespiratory fitness can help reduce the negative impact of excess weight on overall health, the objective of this study was to examine whether fitness moderates the relationship between weight status and cardiovascular and mental health outcomes in forcibly displaced individuals living in a Greek refugee camp.

Methods

A sample of 142 forcibly displaced individuals were recruited. Cardiorespiratory fitness was assessed with the submaximal Åstrand-Rhyming bicycle ergometer test. Blood pressure, blood lipids, blood glucose, and hs-CRP were assessed as physical health outcomes, whereas post-traumatic stress disorder, depression and anxiety symptoms, pain, and quality of life were assessed as mental health outcomes. Main and interaction effects were tested via analyses of covariance (ANCOVAs).

Results

Almost 50% of the participants were overweight/obese, more than 60% presented with very poor fitness levels, and the percentage of participants with very poor fitness levels was particularly high among overweight/obese participants. Whereas overweight/obesity was associated with a less favorable body composition and cardiovascular risk profile, poor fitness was associated with a higher percentage of body fat and a lower percentage of muscle mass. Cardiorespiratory fitness did not moderate the relationship between overweight/obesity and most of the assessed health outcomes.

Conclusions

Only limited support was found for the applicability of the fit-but-fat concept to our population of forcibly displaced individuals. Public health services should prioritize measures to prevent overweight/obesity and associated diseases in refugee camps. Moreover, efforts are needed to improve the fitness of camp residents via exercise/sport interventions.

Perceptions of Cultural Adaptations and Other Characteristics of Weight Management Interventions among Hispanic/Latinx Immigrants

Hispanic/Latinx immigrants have high obesity rates, yet they participate less in weight management interventions. This cross-sectional online study recruited Hispanic/ Latinx immigrants living in the United States (US). In a within-subject experimental crossover component, participants were presented with brief information about a hypothetical weight management intervention that was culturally adapted for Hispanics/ Latinx, or a standard intervention (not adapted) and asked about their willingness to enroll. Participants also reported their preferences for weight management intervention features. Participants (n = 54) were majority female (51.9%), aged 51 years or older (56.0%), American citizens (87.0%), and immigrated to US ≥10 years ago (81.7%), with a mean BMI 29.6 + 3.7 kg/m2. There was no difference in willingness to enroll in a culturally adapted (46.3%) compared to standard intervention (48.1%), though more participants preferred a culturally adapted intervention (68.5%). Preference for a culturally adapted intervention was greater among females (p = 0.008) and those with lower acculturation (p = 0.052). Use of non-evidence-based complementary and alternative medicine strategies was common and associated with greater willingness to enroll in a behavioral program (p = 0.007). Preferences for intervention features varied. These findings may inform efforts to increase the reach of weight management interventions for Hispanic/Latinx immigrants.

A controlled weight loss intervention study among women of Somali background in Norway

Background

Women of Somali background in Norway have a high prevalence of overweight and obesity, compared with women in the general Norwegian population. For lifestyle interventions to be applicable for immigrants to Norway, it is important to culturally tailor interventions in collaboration with relevant communities. The primary outcome was a difference in weight change between the intervention and control groups.

Methods

In this interventional study, Somali women living in one borough of Oslo Municipality in Norway with body mass index (BMI) ≥27.0 kg.m-2 received a co-created, culturally tailored 12-month weight loss intervention consisting of 24 interactive sessions during the first three months, and monthly sessions for the next nine months, compared to a control group. Both groups were measured at baseline and 12 months.

Results

A total of 169 participants were recruited, and 101 participants completed the follow-up. After multiple imputation, the mean difference in weight change adjusted for baseline weight, age, education, employment, marital status, number of children in the household and length of Norwegian residency was -1.6 kg (95 % CI -3.57, 0.43, p = 0.12) in the intervention compared to the control group.

Conclusion

This culturally tailored intervention study demonstrated a modest non-significant effect on weight change after 12 months, possibly due to the short intervention duration and COVID-19. Further studies of a longer duration and considering the provision of childcare are needed to understand whether this approach can be transferred to other immigrant groups and genders.Trial registration: The study was registered at clinicaltrials.gov NCT04578067, 2020-09-29.

Results from "Live Well", a randomized controlled community-based participatory intervention to prevent obesity in new immigrant mother-child dyads

BACKGROUND

Upon arrival, the prevalence of overweight and obesity is lower in new immigrants than their native counterparts in the U.S. With longer residency in the U.S., these differences converge over time, followed by higher prevalence among immigrants than native U.S. residents. Results from the Live Well project in the Greater Boston area demonstrate the viability of utilizing a culturally adapted, community-based participatory research (CBPR) approach to reduce weight gain among newly immigrated mother-child dyads.

METHODS

Haitian, Latina, and Brazilian mother-child dyads (n = 390), new to the U.S. (fewer than 10 years) were enrolled in a one- to two-year long CBPR lifestyle intervention that targeted dietary and physical activity behaviors. Attendance was recorded to establish dose. Demographics, anthropometrics, and relevant covariates were collected from participants at baseline, 6, 12, 18, and 24 months. Body Mass Index (BMI) was calculated using objectively measured height and weight. Linear mixed regression models were used to assess change in BMI and BMI z-score of mothers and children respectively.

RESULTS

At baseline, nearly 75% of mothers and 50% of children were either overweight or obese (BMI ≥ 25.0 and BMI z-score ≥ 85th percentile, respectively). Only 20% of mothers attended all 12 intervention sessions in year 1. Using intent-to-treat analyses, no significant time, intervention, or time × intervention effects were observed for weight change of mothers or children at follow-up. Mothers in the highest quantile (those who attended all 12 intervention sessions) had significant reductions in BMI at 18 months (1.76 units lower, 95%CI: -3.14, -0.37) and 24 months (2.61 units, 95%CI -3.92, -1.29) compared to mothers in the lower quantiles, including those with no exposure. Such dose effects on BMI z-scores were not noted for children.

CONCLUSIONS

Findings from Live Well demonstrate the viability of utilizing a CBPR approach to address overweight and obesity among immigrant mothers. Given the higher-than-expected prevalence of overweight and obesity among mother-child dyads by ~ 6 years of U.S. residency, and lower maternal participation rates in the intervention, additional research is necessary to identify the optimal intervention length, retention strategies, and approach to jointly support healthy maternal and child weight.

Insights from a cross-sectional binational study comparing obesity among nonimmigrant Colombians in their home country and Colombian immigrants in the U.S

BACKGROUND

Latinos in the United States (U.S.) represent a heterogeneous minority population disproportionally impacted by obesity. Colombians in the U.S. are routinely combined with other South Americans in most obesity studies. Moreover, most studies among Latino immigrants in the U.S. solely focus on factors in the destination context, which largely ignores the prevalence of obesity and contextual factors in their country of origin, and warrant transnational investigations.

METHODS

Using 2013-17 data from the New York City Community Health Survey (NYC CHS, U.S.) and the National Survey of the Nutritional Situation (ENSIN, Colombia), Colombians that immigrated to the U.S. and are living in NYC (n = 503) were compared to nonimmigrant Colombians living in their home country (n = 98,829). Prevalence ratios (PR) for obesity (BMI ≥ 30 kg/m2) by place of residence were estimated using multivariable logistic regression adjusting for socio-demographic characteristics and daily consumption of sugar-sweetened beverages.

RESULTS

The prevalence of obesity was 49% greater for immigrant Colombians living in NYC when compared to nonimmigrant Colombians living in in their home country (PR = 1.49; 95% CI 1.08, 2.07). Colombian immigrant men in NYC were 72% more likely to have obesity compared to nonimmigrant men living in their home country (PR = 1.72; 95% CI 1.03, 2.87). No significant differences were found in the adjusted models among women.

CONCLUSIONS

Colombian immigrants in NYC exhibit a higher prevalence of obesity compared to their nonimmigrant counterparts back home and sex strengthens this relationship. More obesity research is needed to understand the immigration experience of Colombians in the U.S. and the underlying mechanisms for sex difference. Public health action focused on women in Colombia and both Colombian men and women immigrants in the U.S. is warranted to avert the long-term consequences of obesity.

Randomized control trial of a childhood obesity prevention family-based program: "Abriendo Caminos" and effects on BMI

Background

Hispanic individuals are at increased risk for obesity and other chronic health conditions. This article evaluates the effect of a family-based, childhood obesity primary prevention intervention in a community setting.

Methods

A multi-site, randomized controlled trial community program with assessments at pre (T0), post-program (T1), and 6-months post-program (T2). Participating families were recruited from five sites. Only families of Mexican or Puerto Rican heritage with a least one child between 6 and 18 years were included in the study, without weight restrictions. Families were randomized to the intervention and control arms. Intervention families received six-2 h weekly workshops. Control families received printed generic nutrition and wellness information. Heights and weights were measured at the 3-time points to calculate BMI z-scores, BMI-percentiles, and weight status using age- and sex-specific growth charts, according to the CDC guidelines.

Results

There were no differences in BMI-z scores between children in the intervention (n = 239) and control groups (n = 187) at T0. BMI z-scores decreased in the intervention group (-0.03, 95% CI, -0.066, -0.003, p = 0.032) at T1, but not in the control group at T1. Changes in BMI z-scores were not statistically significant at T2.

Conclusion

The Abriendo Caminos intervention effectively prevented unhealthy weight gain in Hispanic children in the short-term, but not at 6-months post-intervention. Younger children and girls benefited more from the program at 6-months post-intervention. Additional efforts are needed to sustain long-term changes. Culturally-tailored programs can provide families with the knowledge to produce short-term changes and a potential pathway for sustainable changes in implementing healthy behaviors.

El Sancocho, la Bandera y la Familia: La vida social de los alimentos y sus implicaciones para la salud y el bienestar de los inmigrantes dominicanos

Para comprender mejor los factores que influyen en la salud y el bienestar de los inmigrantes dominicanos, exploramos las formas en que la inmigración influye en las prácticas culturales, el comportamiento de salud y la salud. Los inmigrantes dominicanos (n = 42) participaron en cinco discusiones grupales reflexivas y no estructuradas y (n = 5) participaron en un grupo de fotovoz intergeneracional. La pérdida del contexto familiar y social en el que tradicionalmente se llevan a cabo las prácticas dietéticas dominicanas fue un tema destacado. Para los participantes, comer se convirtió en una actividad apresurada y superficial que involucraba a menos personas y menos socialización. Las prácticas dietéticas en la República Dominicana se establecen en el contexto de las normas familiares y los procesos sociales, que brindan apoyo, así como oportunidades para la socialización y la transmisión de prácticas culturales a través de las generaciones. En los Estados Unidos, las fuerzas sociopolíticas más amplias se enfocan en el individualismo y no apoyan el desarrollo o mantenimiento de patrones culturales para los dominicanos. Las políticas que promueven el equilibrio entre el trabajo y la vida personal pueden tener implicaciones importantes para las prácticas dietéticas en las nuevas comunidades de inmigrantes.

Protocol for a randomised controlled trial of a family strengthening program to prevent unhealthy weight gain among 5 to 11-year-old children from at-risk families: the Strong Families Trial

Background

Obesity is an increasing health concern in Australia among adult and child populations alike and is often associated with other serious comorbidities. While the rise in the prevalence of childhood obesity has plateaued in high-income countries, it continues to increase among children from disadvantaged and culturally diverse backgrounds. The family environment of disadvantaged populations may increase the risk of childhood obesity through unhealthy eating and lifestyle practices. The Strong Families Trial aims to assess the effectiveness of a mixed behavioural and lifestyle intervention for parents and carers of at-risk populations, i.e. families from culturally diverse and disadvantaged backgrounds, in preventing unhealthy weight gain among children aged 5 to 11 years.

Methods

Eight hundred families from low socio-economic areas in Greater Western Sydney, NSW, and Melbourne, VIC, will be recruited and randomised into a lifestyle intervention or control group. The intervention comprises 90-minute weekly sessions for 6 weeks (plus two-booster sessions) of an integrated, evidence-based, parenting and lifestyle program that accounts for the influences of family functioning. Primary (anthropometric data) and secondary (family functioning, feeding related parenting, physical activity, consumption of healthy foods, health literacy, family and household costs) outcome measures will be assessed at baseline, immediately following the intervention, and 12 months post-intervention.

Discussion

This study will elucidate methods for engaging socially disadvantaged and culturally diverse groups in parenting programs concerned with child weight status.

Trial Registration

This study is registered with the Australian New Zealand Clinical Trials Registry (ACTRN12619001019190). Registered 16 July 2019. 

Addressing Hispanic Obesity Disparities Using a Community Health Worker Model Grounded in Motivational Interviewing

PURPOSE

To determine whether Hispanic residents receiving the Healthy Fit intervention enhanced with Motivational Interviewing (MI) experienced greater improvements in body composition, relative to participants receiving the initial intervention.

DESIGN

Quasi-experimental evaluation.

SETTING

El Paso, Texas.

SAMPLE

Among 656 baseline participants, 374 (54%) completed the 12-month assessment.

INTERVENTION

In Healthy Fit, community health workers (CHWs) promote nutrition and exercise. To strengthen intrinsic motivation and help participants overcome barriers to change, we incorporated a 30-minute motivational interview into the baseline assessment. Follow-up phone calls at 1, 3, and 6 months were identical across conditions.

MEASURES

CHWs assessed body mass index (BMI) and body fat percentage (BFP) using a bioelectrical impedance scale.

ANALYSIS

Regression models estimated differences between intervention conditions on change in BMI and BFP from baseline to the 12-month assessment.

RESULTS

Participants receiving MI had 2.13 times higher odds of losing weight (OR = 2.14, 95% CI [1.30, 3.53], P = .003) and 2.59 times higher odds of reduced BFP (OR = 2.59, 95% CI [1.51, 4.41], P < .001), relative to initial intervention participants. MI participants lost an average of 1.23 kg (2.71 lbs.) and their BFP declined 2% over 12 months.

CONCLUSION

Findings suggest CHW use of MI is a promising approach for promoting incremental changes in diet and exercise, which Healthy Fit integrates into a low-cost intervention.

Prevalence of self-reported obesity among diverse Latino adult populations in New York City, 2013-2017

INTRODUCTION

Latinos in the United States represent a heterogeneous population disproportionally impacted by obesity. Yet, the prevalence of obesity by specific Latino group is unclear. Using the New York City Community Health Survey (2013-2017), this study compared self-reported obesity in the city's largest Latino adult populations (Puerto Ricans, Mexicans, Dominicans, Ecuadorians, and Colombians).

METHODS

Age-standardized prevalence using the 2000 Census and prevalence ratios (PRs) for self-reported obesity (BMI ≥30 kg/m2) by country of origin were estimated using weighted multivariable logistic regression adjusting for socio-demographic characteristics, health status, and behaviors.

RESULTS

Obesity prevalence among Mexicans (36.8%; 95% CI [31.5, 42.4]) and Puerto Ricans (36.3%; 95% CI [31.7, 41.3]) was significantly higher than that among Colombians (23.8%; 95% CI [18.8, 29.5]), Ecuadorians (24.2%; 95% CI [20.7, 28.1]), and Dominicans (27.0%; 95% CI [25.0, 29.1]). After adjusting for covariates, compared to Mexicans, the PRs of obesity remained significantly lower for Colombians (PR = 0.80; 95% CI [0.64, 1.00]), Ecuadorians (PR = 0.72; 95% CI [0.61, 0.86]) and Dominicans (PR = 0.75; 95% CI [0.65, 0.85]). There was no significant difference between Mexicans and Puerto Ricans.

CONCLUSION

Obesity prevalence differs by country of origin, suggesting that clustering of Latinos in public health research may obscure unique risks among specific groups. Despite group differences, all Latino groups exhibit high prevalence of obesity and warrant renewed efforts tailored to the specific context and culture of each group to prevent and reduce obesity.

Feasibility of a Culturally Adapted Dietary Weight-Loss Intervention among Ghanaian Migrants in Berlin, Germany: The ADAPT Study

Background: Dietary weight-loss interventions often fail among migrant populations. We investigated the practicability and acceptability of a culturally adapted dietary weight-loss intervention among Ghanaian migrants in Berlin. Methods: The national guidelines for the treatment of adiposity were adapted to the cultural characteristics of the target population, aiming at weight-loss of ≥2.5 kg in 3 months using food-based dietary recommendations. We invited 93 individuals of Ghanaian descent with overweight or obesity to participate in a 12-weeks intervention. The culturally adapted intervention included a Ghanaian dietician and research team, one session of dietary counselling, three home-based cooking sessions with focus on traditional Ghanaian foods, weekly smart-phone reminders, and monthly monitoring of diet and physical activity. We applied a 7-domains acceptability questionnaire and determined changes in anthropometric measures during clinic-based examinations at baseline and after the intervention. Results: Of the 93 invitees, five participants and four family volunteers completed the study. Reasons for non-participation were changed residence (13%), lack of time to attend examinations (10%), and no interest (9%); 64% did not want to give any reason. The intervention was highly accepted among the participants (mean range: 5.3–6.0 of a 6-points Likert scale). Over the 12 weeks, median weight-loss reached −0.6 kg (range: +0.5, −3.6 kg); the diet was rich in meats but low in convenience foods. The median contribution of fat to daily energy intake was 24% (range: 16–40%). Conclusions: Acceptance of our invitation to the intervention was poor but, once initiated, compliance was good. Assessment centers in the participants’ vicinity and early stakeholder involvement might facilitate improved acceptance of the invitation. A randomized controlled trial is required to determine the actual effects of the intervention.

Implementing Hypertension Management Interventions in Immigrant Communities in the U.S.: a Narrative Review of Recent Developments and Suggestions for Programmatic Efforts

PURPOSE OF REVIEW

To outline intervention efforts focused on reducing hypertension disparities in immigrant communities in the U.S. and to identify areas in the design, implementation, and evaluation of these interventions that warrant further exploration guided by an implementation science framework.

RECENT FINDINGS

Studies examined (n = 11) included immigrant populations of African, Hispanic, and Asian origin. Men were underrepresented in most studies. Culturally tailored group-based educational sessions in religious or community spaces were common. Intervention agents included research assistants, registered nurses, community health workers, and faith-based organization volunteers. Community stakeholders were engaged in most studies, although most commonly for recruitment efforts. Surveys/interviews were used for intervention evaluation, and documentation of intervention activities and trainings was used to assess fidelity. Identified pathways for further intervention innovation included gender or migration-status-based targeting, diversifying intervention agents, enhancing mixed-method process evaluations, and tailoring to emerging needs during the COVID-19 pandemic.

Relationships of Physical Activity and Diet Quality with Body Composition and Fat Distribution in US Adults

OBJECTIVE

This study aimed to investigate the relationships among physical activity (PA), diet quality, body composition, and fat distribution in a representative sample of US adults.

METHODS

A cross-sectional analysis was conducted using publicly accessible data from the 2011 to 2016 National Health and Nutrition Examination Survey and the Food Patterns Equivalents Database (n = 7,423). Variables from the data sets were analyzed for this study, including PA, two 24-hour dietary recalls, and dual-energy x-ray absorptiometry outputs.

RESULTS

For men, PA and diet quality were inversely associated with the percentage of body fat (β = -0.0042, 95% CI: -0.0084 to -0.0001; β = -0.28, 95% CI: -0.42 to -0.14) and fat mass index (β = -0.0125, 95% CI: -0.0209 to -0.0041; β = -0.56, 95% CI: -0.81 to -0.32); meeting the PA recommendation and having good diet quality provided an additive effect on body fat. A similar pattern was observed in women. Additionally, diet quality was inversely associated with all fat distribution measures in both sexes, whereas PA was positively associated with lean mass measures in men only.

CONCLUSIONS

Increased PA and/or better diet quality were associated with reduced body fat, a healthier fat distribution, and increased lean mass. Further research examining how changes in PA or diet quality influence body composition and fat distribution in adults is warranted.

El Sancocho, la Bandera y la Familia: The Social Life of Food and its Implications for Dominican Immigrant Health and Well-Being

In order to better understand factors that influence the health and well-being of Dominican immigrants, we explored the ways in which immigration influences cultural practices, health behavior, and health. Dominican immigrants (n = 42) took part in five reflective and unstructured group discussions and (n = 5) participated in an intergenerational photovoice group. The loss of the familial and social context in which Dominican dietary practices traditionally take place was a salient theme. For participants, eating became a rushed, perfunctory activity involving fewer people and less socializing. Dietary practices in the Dominican Republic are set in the context of familial norms and social processes, which provide support as well as opportunities for socializing and the transmission of cultural practices across generations. In the United States, broader sociopolitical forces are guided by individualism and do not support the development or maintenance of these factors for Dominicans. Policies that promote work-life balance may have important implications for dietary practices in new immigrant communities.

Results of a Family-Based Intervention Promoting Healthy Weight Strategies in Overweight Hispanic Adolescents and Parents: An RCT

INTRODUCTION

Hispanic adolescents in the U.S. are disproportionately affected by overweight and obesity compared with their White, non-Hispanic counterparts. This study examines the efficacy of an evidence-based family intervention adapted to target obesity-related outcomes among Hispanic adolescents who were overweight/obese compared with prevention as usual.

STUDY DESIGN

This study was an RCT.

SETTING/PARTICIPANTS

Participants were Hispanic adolescents who were overweight/obese (n=280, mean age=13.01 [SD=0.82] years) in the 7th/8th grade and their primary caregivers. Primary caregivers were majority female legal guardians (88% female, mean age=41.88 [SD=6.50] years).

INTERVENTION

Participants were randomized into the family-level obesity-targeted intervention or referral to community services offered for overweight/obese adolescents and families (condition). Data collection began in 2015.

MAIN OUTCOME MEASURES

Primary outcomes included dietary intake (e.g., reduction of sweetened beverages) and past-month moderate-to-vigorous physical activity. Secondary outcomes were BMI and family functioning assessed among adolescents and primary caregivers.

RESULTS

Study analyses (2019) indicated no significant intervention effects for adolescents' primary outcomes. Intervention effects were found for parents' intake of fresh fruits and vegetables (β=0.12, 95% CI=0.02, 0.23), added sugar (β= -0.11, 95% CI= -0.22, -0.004), and sweetened beverages (β= -0.12, 95% CI=-0.23, -0.02), and parents showed decreased BMI (β= -0.05, 95% CI= -0.11, -0.01) at 6 months after baseline compared with usual prevention. Intervention effects were found for adolescent family communication (β=0.13, 95% CI=0.02, 0.24), peer monitoring (β=0.12, 95% CI=0.01, 0.23), and parental involvement (β=0.16, 95% CI=0.06, 0.26) at 6 months after baseline compared with prevention as usual.

CONCLUSIONS

This intervention was not effective in improving overweight/obesity-related outcomes in adolescents. The intervention was effective in improving parents' dietary intake and BMI; however, the effects were not sustained in the long term. Other intervention strategies (e.g., booster sessions, increased nutritional information) may be necessary to sustain beneficial effects and extend effects to adolescent participants.

TRIAL REGISTRATION

This study is registered at www.clinicaltrials.gov NCT03943628.

An overview of reviews on strategies to reduce health inequalities

BACKGROUND

Governments are incentivized to develop and implement health action programs focused on equity to ensure progress with effective strategies or interventions.

OBJECTIVE

Identify and synthesize strategies or interventions that facilitate the reduction of health inequalities.

METHODS

A systematic search strategy was carried out up until August 2019 in MEDLINE (Ovid), Embase (Elsevier), Cochrane Database of Systematic Reviews, LILACS, Scopus, Scielo and Epistemonikos. In addition, a snowball strategy was used. Literature reviews (LRs) of experimental and quasi-experimental studies were included. The identified interventions and outcomes were categorized based on the recommendation by the Cochrane group in "Effective Practice and Organization of Care". The quality of the included LRs was evaluated using the AMSTAR 2 tool.

RESULTS

Four thousand ninety-five articles were identified, of which 97 were included in the synthesis of evidence. Most of the studies included focused on the general population, vulnerable populations and minority populations. The subjects of general health and healthy lifestyles were the most commonly addressed. According to the classification of the type of intervention, the domain covered most was the delivery arrangements, followed by the domain of implementation strategies. The most frequent group of outcomes was the reported outcome in (clinical) patients, followed by social outcomes.

CONCLUSION

The strategies that facilitate the reduction of health inequalities must be intersectoral and multidisciplinary in nature, including all sectors of the health system. It is essential to continue generating interventions focused on strengthening health systems in order to achieve adequate universal health coverage, with a process of comprehensive and quality care.

Effectiveness and promising behavior change techniques of interventions targeting energy balance related behaviors in children from lower socioeconomic environments: A systematic review

This systematic review aims to summarize the evidence regarding the effectiveness of interventions targeting energy balance-related behaviors in children from lower socioeconomic environments and the applied behavior change techniques. The literature search was conducted in Cochrane, Embase, Psycinfo and Pubmed. Articles had to be published between January 2000 and September 2019. Studies were included that i) targeted dietary behavior, physical activity and/or sedentary behavior; ii) had a controlled trial design; iii) included children aged 9–12 years old; iv) focused on lower socioeconomic environments; and v) took place in upper-middle or high income countries. Two independent researchers extracted data, identified behavior change techniques using the Behavior Change Technique Taxonomy v1, and performed a methodological quality assessment using the quality assessment tool of the Effective Public Health Practice Project. We included 24 studies, of which one received a high and three a moderate quality rating. Demonstration, practice and providing instructions on how to perform a behavior were the most commonly applied behavior change techniques. Seven studies reported significant beneficial intervention effects: five on physical activity, one on physical activity and sedentary behavior and one on dietary behavior. When comparing effective versus non-effective interventions, and comparing our review to previous reviews focusing on children from the general population, similar behavior change techniques were applied. More high quality research is needed to evaluate the effectiveness of interventions and their behavior change techniques targeting children of low socioeconomic environments.

PROSPERO registration number: CRD42016052599

Rationale, design and study protocol of the 'Strong Families Start at Home' feasibility trial to improve the diet quality of low-income, ethnically diverse children by helping parents improve their feeding and food preparation practices

There is an urgent need to create effective interventions that help parents establish a healthy diet among their children early in life, especially among low-income and ethnically and racially diverse families. U.S. children eat too few fruits, vegetables and whole grains, and too many energy dense foods, dietary behaviors associated with increased morbidity from chronic diseases. Parents play a key role in shaping children's diets. Best practices suggest that parents should involve children in food preparation, and offer, encourage and model eating a variety of healthy foods. In addition, while parents help to shape food preferences, not all children respond in the same way. Certain child appetitive traits, such as satiety responsiveness (sensitivity to internal satiety signals), food responsiveness (sensitivity to external food cues), and food fussiness may help explain some of these differences. Prior interventions to improve the diet of preschool children have not used a holistic approach that targets the home food environment, by focusing on food quality, food preparation, and positive feeding practices while also acknowledging a child's appetitive traits. This manuscript describes the rationale and design for a 6-month pilot randomized controlled trial, Strong Families Start at Home, that randomizes parents and their 2-to 5-year old children to either a home-based environmental dietary intervention or an attention-control group. The primary aim of the study is to explore the feasibility and acceptability of the intervention and evaluation and to determine the intervention's preliminary efficacy on child diet quality, feeding practices, and availability of healthy foods in the home.

Physical Activity Among Immigrant Children: A Systematic Review

BACKGROUND

The health benefits of physical activity (PA) for children are well documented. However, little is known about PA patterns among immigrant children.

METHODS

The authors reviewed research on PA patterns of immigrant children. The inclusion criteria included peer-reviewed articles published from January 2010 to May 2018 in English, French, or Spanish that included primary-school-aged (6-12 y) children, and data on immigration status.

RESULTS

A total of 11 articles were included in the analyses. These studies revealed a deficit of PA among immigrant children. Immigration status (immigrant or nonimmigrant) and generation of immigration (first, second, and third), ethnic origin, and gender were associated with PA patterns. In general, PA levels were lower among first-generation immigrant children, children of Hispanic and East Asian origin, and girls. The results suggest that questionnaire measures might be biased or inaccurate among immigrant children, highlighting the need for the integration of mixed methods (objective and subjective measures).

CONCLUSIONS

A large proportion of children do not meet PA guidelines, and this might be more problematic for immigrant children. Future studies incorporating time since immigration, comparative analyses on gender, sociocultural and socioeconomic characteristics, and mixed methodology could provide a more complete portrait of PA patterns and opportunities for immigrant children.

Prevalence and predictors of overweight and obesity in Brazilian immigrants in Massachusetts

BACKGROUND

Overweight and obesity are important risk factors for chronic non-communicable diseases, and their prevalence is on the rise worldwide. This study seeks to describe the prevalence and predictors of overweight and obesity in Brazilian immigrants living in Massachusetts, United States of America (USA).

METHODS

Modeled after a survey on behavioral risk factors for chronic disease conducted annually in Brazil (Vigilância de Fatores de Risco e Proteção para Doenças Crônicas por Inquérito Telefônico: Vigitel), Brazilian immigrants aged 18+ (n = 361) were surveyed between December 2013 and March 2014. Information was obtained from consenting participants regarding their demographic characteristics, physical activity, dietary and lifestyle habits, and other behavioral risk factors. Weight status was estimated from body mass index (BMI), calculated from self-reported height and weight data. Participants were categorized as overweight/obese if their BMI was ≥25; overweight and obese categories were combined to ensure appropriate sample size. Prevalence of overweight/obesity was estimated using STATA, and significant predictors were identified via multi-variable logistic regression. Odds ratio (OR), 95% confidence intervals (95% CI) and p-values were determined.

RESULTS

The overall prevalence of overweight/obesity in the sample was 47.6%. Significant predictors of overweight and obesity were gender (men OR 2.30, 95% CI: 1.10, 3.78; women are comparison group), working in the 3 months prior to the survey (OR 2.90, 95% CI: 1.01, 8.30), and longer duration living in the USA (OR per additional year 1.06, 95% CI: 1.02, 1.11). Significant dietary predictors of overweight/obesity included 5 or more days per week of consumption of red meat (OR red meat 3.70, 95% CI: 1.47, 9.26) or of sweetened beverages, like soft drinks also known as soda (OR soda 2.40, 95% CI: 1.00, 5.78) compared with less frequent consumption of these foods.

CONCLUSIONS

This study suggests that long duration of time lived in the USA increases odds of overweight and obesity for Brazilian immigrants living in Massachusetts. Efforts to curb increases in overweight and obesity in this population should focus not only on the men and those who work but also the women. Possible intervention measures should target soda (soft drink) and red meat consumption in Brazilian immigrants.

Preliminary Effects of Tailoring an Obesity Prevention Intervention Program for Latino Immigrant Families

An obesity preventive intervention program for preschool families, Healthy Balance, was tested in 2 sequential pilot trials. The first pilot tested the original and translated group intervention in a heterogeneous population (65 families), and the second tested the feasibility of a culturally adapted version for Latinx immigrant families (27 families). No significant study 1 intervention effects were found. However, in study 2, there were significant improvements in parent body mass index, neck circumference, and blood pressure. These studies suggest that targeting family system change and tailoring the intervention for Latinx immigrant populations is feasible and has the potential to improve obesity-related biomarkers.

Recruitment of New Immigrants Into a Randomized Controlled Prevention Trial: The Live Well Experience

Minority populations are hard to reach with prevention interventions because of cultural and logistical barriers to recruitment. Understanding how to overcome these barriers is pertinent to reducing the elevated burden of obesity within these underserved communities. To inform this literature gap, we explore the processes and outcomes of recruitment for Live Well-a randomized controlled obesity prevention intervention targeting new immigrant mothers and children from Brazil, Latin America, and Haiti who were residing in the greater Somerville, MA area. We employed community-based participatory research principles to develop and implement five culturally-adapted recruitment activities (posters and flyers, media announcements, church outreach, participant referrals, and community organization partnerships) and tracked enrollment for the total and stratified samples of 406 dyads (37% Brazilian, 29% Latino, 33% Haitian). We describe how strategic partnerships were built and sustained within the intervention community, and detail the key adjustments that contributed to our success. Ultimately, community organization partnerships and participant referrals enrolled a collective majority of participants (34% and 25%, respectively); however, stratified analyses revealed variation by ethnicity: Haitian immigrants responded best to ethnic-based media announcements (44%), whereas Latino and Brazilian immigrants were most responsive to community organization outreach (45% and 38%, respectively). Implications from our findings enhance the literature on recruiting hard-to-reach communities into prevention research: some less integrated communities may respond more to grassroots activities with direct engagement, whereas communities with more social capital may be more responsive to top-down, community-wide collaborations. Furthermore, we suggest that strategic and trusting partnerships are key facilitators of recruitment, and future researchers must understand communities' culture and social networks when building relationships. Our analyses provide rare insight into best practices to overcome specific cultural barriers to recruitment which future investigators can use to better reach underserved communities with prevention research.

School-Based Interventions in Low Socioeconomic Settings to Reduce Obesity Outcomes among Preschoolers: A Scoping Review

Pediatric obesity continues to grow globally, specifically in low-socioeconomic rural areas. Strategies that combat pediatric obesity have not yet been fully determined. While the implementation of some interventions in preschool (ages 2-5) populations have demonstrated successful results, others have proven to be inconclusive and less have focused specifically on low socioeconomic populations. This scoping review aims to examine the literature to study the effectiveness of the school-based interventions in low socioeconomic settings on adiposity-related outcomes among preschoolers. PubMed/MEDLINE and EBSCO (ERIC (Education Resource Information Center) and Food Science Source) were used to conduct the search strategy. A total of 15 studies were assessed that met the inclusion criteria: Studies that included school-based interventions; reported adiposity-related data; targeting preschoolers (2 to 5 years old) in rural/low socioeconomic/underserved/areas. Interventions were then described as successful or inconclusive based on the primary outcome. Nine out of the fifteen studies were labeled as successful, which had a reduction in adiposity-related outcomes (BMI (body mass index), BMI z-score, waist circumference, skinfold, percent body fat). Current evidence, although scarce, suggest that obesity outcomes can be targeted in low socioeconomic settings through school interventions with a multicomponent approach (nutrition and physical activity) and the inclusion of parents. Further research is needed to determine effective interventions, their efficacy, and their long-term outcomes.

Exploring national trends of patient- and family-centered care among US children

We explored national trends in the receipt of high-quality patient-physician communication and patient empowerment through behavioral health counseling among children in the United States. We used data from the Medical Expenditure Panel Survey from 2010 to 2014. We employed two measures of patient- and family-centered care (PFCC): (1) a composite measure of high-quality patient-physician communication ( n = 34,629) and (2) patient empowerment through behavioral health counseling about healthy eating ( n = 36,527) and exercise ( n = 38,318). We used multivariate logistic regression models to estimate the variation of receiving PFCC by social determinants of health over time. Rates of receiving behavioral health counseling about healthy eating (53-60%) and exercise (37-42%) were lower than the rate of receiving high-quality physician-patient communication (92-93%). Parents were significantly more likely to report receiving high-quality physician-patient communication in 2014 than in 2010 (odds ratio 1.37, confidence interval 1.08-1.67); however, no association was found for empowerment through behavioral health counseling. Low income and parental educational attainment, and lack of insurance were associated with lower odds of receiving behavioral health counseling. Results showed significant variation of physician-patient communication and empowerment by social and demographic factors. The results suggest more providers need to empower parents and their children to self-care through behavioral health counseling.

Assessing evidence of interventions addressing inequity among migrant populations: a two-stage systematic review

BACKGROUND

Everyone has the right to achieve the standard of health and well-being. Migrants are considered as vulnerable populations due to the lack of access to health services and financial protection in health. Several interventions have been developed to improve migrant population health, but little is known about whether these interventions have considered the issue of equity as part of their outcome measurement.

OBJECTIVE

To assess the evidence of health interventions in addressing inequity among migrants.

METHODS

We adopted a two-stage searching approach to ensure the feasibility of this review. First, reviews of interventions for migrants were searched from five databases: PubMed, Cochrane, CINAHL, PsycINFO, and EMBASE until June 2017. Second, full articles included in the identified reviews were retrieved. Primary studies included in the identified reviews were then evaluated as to whether they met the following criteria: experimental studies which include equity aspects as part of their outcome measurement, based on equity attributes defined by PROGRESS-Plus factors (place of residence, race/ethnicity, occupation, gender, religion, education, socio-economic status, social capital, and others). We analysed the information extracted from the selected articles based on the PRISMA-Equity guidelines and the PROGRESS-Plus factors.

RESULTS

Forty-nine reviews involving 1145 primary studies met the first-stage inclusion criteria. After exclusion of 764 studies, the remaining 381 experimental studies were assessed. Thirteen out of 381 experimental studies (3.41%) were found to include equity attributes as part of their outcome measurement. However, although some associations were found none of the included studies demonstrated the effect of the intervention on reducing inequity. All studies were conducted in high-income countries. The interventions included individual directed, community education and peer navigator-related interventions.

CONCLUSIONS

Current evidence reveals that there is a paucity of studies assessing equity attributes of health interventions developed for migrant populations. This indicates that equity has not been receiving attention in these studies of migrant populations. More attention to equity-focused outcome assessment is needed to help policy-makers to consider all relevant outcomes for sound decision making concerning migrants.

Outcomes of a Culturally Tailored Partially Randomized Patient Preference Controlled Trial to Increase Physical Activity Among Low-Income Immigrant Latinas

INTRODUCTION

Almost half (47.8%) of adult Latinas report they never engage in any leisure time physical activity (PA) which is an independent risk factor for the development of cardiovascular disease and other chronic illnesses. There is a pressing need to develop and test PA interventions among Latinas. Therefore, the purpose of this study was to evaluate the effects of a PA Intervention for Latinas, a culturally tailored, promotora-facilitated 12-week PA intervention. It was hypothesized that at the completion of the intervention, participants would have (a) higher daily PA levels; (b) improved aerobic fitness, muscle strength, and flexibility; and (c) lower body mass index and percentage of body fat.

METHODOLOGY

A partially randomized patient preference trial design with lag group was used to test the intervention. Participants ( N = 76) attended twice weekly, low-impact aerobic/Latin dance PA classes taught by laywomen trained as promotoras.

RESULTS

Significant improvements were measured in aerobic fitness, muscle strength and flexibility, and daily PA levels ( p < .001). Sixty percent of the participants attended at least 60% of the PA sessions.

DISCUSSION

Findings suggest laywomen trained as promotoras can successfully facilitate the delivery of an intervention to increase PA among immigrant Latinas.

ANDALE Pittsburgh: results of a promotora-led, home-based intervention to promote a healthy weight in Latino preschool children

Background

Latino preschool children have higher rates of obesity than preschool children from other racial/ethnic groups; however, few effective, culturally appropriate interventions exist targeting this group. The purpose of this study was to test the feasibility of a 10-week, promotora-mediated, home-based intervention to promote a healthy weight in Latino preschool children.

Methods

Trained promotoras (community health workers) delivered 10, 90-min weekly interactive and tailored sessions to Latino families living in Allegheny County. Participants were recruited through promotoras’ own social networks and community gatherings, flyers, and word of mouth. Primary outcome measures included child body mass index (BMI) z-score and percentile. Secondary outcome measures included child objectively measured physical activity and dietary intake, and the home social and physical environment (e.g., parent health behaviors, parent self-efficacy, parental support, physical activity equipment in the home). The final analysis sample included 49 of 51 participants who completed both baseline and follow-up assessments.

Results

Participants included mothers (33.5 ± 6.1 years old) and their preschool-aged children who were primarily 1st generation immigrants from Mexico (65%). The primary analyses of BMI percentile and z-score showed no change post-intervention. However, there was a significant decrease in child BMI percentile for overweight and obese children from baseline to follow-up (p < .05). We also saw significant pre/post increases in child daily fruit and vegetable intake, and parent moderate-to-vigorous physical activity, fruit and vegetable servings per day, and self-efficacy; and significant decreases in child saturated fat and added-sugar intake, and child and parent screen time (p’s < .05).

Conclusions

Despite the short duration of the intervention and follow-up, this pilot study showed promising effects of a promotora-mediated intervention to promote a healthy weight in Latino preschool children.

Electronic supplementary material

The online version of this article (10.1186/s12889-018-5266-3) contains supplementary material, which is available to authorized users.

Unveiling cultures in emergency response communication networks on social media: following the 2016 Louisiana floods

While culture in emergency management has gained attention from the field of risk communication, few have systemically dealt with the nuances of general culture involved in the formation and differentiation of risk communication. To fill this gap, this research aims to first examine cultural nuances from the 2016 Louisiana flood response by primarily focusing on communications embedded in social media. The results from social network analysis and content analysis highlight that the flood response communication had strong cultural characteristics, highlighting the notion that of the cultures in Louisiana—faith-based, local authority, and nonprofits—were the prominent cultural responders in the flood response communication. In particular, cultural similarity in both intra/inter group response communication was observed, with each communication group comprising actors who shared a common cultural background and spoke similar keywords.

Familial psychosocial risk classes and preschooler body mass index: The moderating effect of caregiver feeding style

BACKGROUND

Early child weight gain predicts adolescent and adult obesity, underscoring the need to determine early risk factors affecting weight status and how risk factors might be mitigated. Socioeconomic status, food insecurity, caregiver depressive symptomology, single parenthood, and dysfunctional parenting each have been linked to early childhood weight status. However, the associations between these risk factors and children's weight status may be moderated by caregiver feeding styles (CFS). Examining modifiable factors buffering risk could provide key information to guide early obesity intervention efforts.

METHODS

This analysis used baseline data from the Growing Healthy project that recruited caregivers/child dyads (N = 626) from Michigan Head Start programs. Caregivers were primarily non-Hispanic white (62%) and African American (30%). After using latent class analysis to identify classes of familial psychosocial risk, CFS was tested as a moderator of the association between familial psychosocial risk class and child body mass index (BMI) z-score.

RESULTS

Latent class analysis identified three familial psychosocial risk classes: (1) poor, food insecure and depressed families; (2) poor, single parent families; and (3) low risk families. Interactive effects for uninvolved feeding styles and risk group indicated that children in poor, food insecure, and depressed families had higher BMI z-scores compared to children in the low risk group. Authoritative feeding styles in low risk and poor, food insecure, and depressed families showed lower child BMI z-scores relative to poor, single parent families with authoritative feeding styles.

CONCLUSIONS

Uninvolved feeding styles intensified the risk and an authoritative feeding style muted the risk conferred by living in a poor, food-insecure, and depressed family. Interventions that promote responsive feeding practices could help decrease the associations of familial psychosocial risks with early child weight outcomes.

A systematic review of acculturation, obesity and health behaviours among migrants to high-income countries

Objective There is extensive evidence for weight gain among people migrating from low/middle-income to high-income countries, which may be due, in part, to acculturation factors. This review aimed to identify associations between acculturation and body weight among immigrants to high-income countries and identify if studies accounted for the role played by health behaviours. Methods A systematic literature search using keywords was performed with three databases (Medline, PsychINFO and EMBASE). The 35 studies were included that utilised quantitative methodology and presented empirical findings focused on acculturation and body weight among adult immigrants. Findings There was evidence presented across multiple studies for an association between acculturation (measured with standard measures or as duration of stay) and obesity. Most studies were cross sectional, which did not allow the exploration of drivers of change in health behaviours and weight gain. Conclusion This is the first review to examine associations between acculturation and body weight among migrants utilising both acculturation scales and proxy measures of acculturation and to examine the role of health behaviours. Evidence from this review suggests that health interventions should target first generation migrants to promote retention of their original healthy behaviours. Recent migrant groups report healthier behaviours than comparative host country populations, and therefore interventions should be promoted at the initial stages following migration to avoid uptake of unhealthy behaviours.

Applying Ecological Frameworks in Obesity Intervention Studies in Hispanic/Latino Youth:

Introduction:

In the United States, Hispanic children have higher rates of obesity compared with non-Hispanic White children. An ecological framework provides a holistic view of the environment to which Hispanic/Latino children are exposed that can potentially inform prevention and treatment initiatives for this vulnerable population.

Method:

This systematic review examines the existing evidence on the use of an ecological framework in intervention studies targeting overweight and obesity in Hispanic youth from birth to 8 years. Key terms guided the search of PubMed, Google Scholar, CINAHL, and EBSCOhost databases from 1997 to 2016. Results were organized using the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) method.

Results:

Seven studies met the inclusion and exclusion criteria. Significant improvements in body mass index z scores in treatment children were evident in five of the seven studies. Increases in fruit, water, and vegetable consumption and physical activity levels were reported in four of the seven studies.

Conclusion:

Multilevel interventions targeting a child’s home and community suggest efficacy in reducing or preventing obesity; increasing fruit, water, and vegetable consumption; and increasing physical activity in overweight/obese young Hispanic children. Future research is needed to explore the sustainability of multilevel obesity prevention interventions in this vulnerable population.

Obesity in International Migrant Populations

PURPOSE OF REVIEW

This review examines the risk of obesity in migrant groups-specifically migrants from countries with lower prevalence of obesity to countries with higher prevalence of obesity. We examine obesity prevalence within migrant groups compared with native populations and the evidence on factors that might shape obesity risk in these migrant groups.

RECENT FINDINGS

Migrants may arrive in new countries with a health advantage including generally a healthier body weight. Genetic and epi-genetic factors, as well as body size preference, socio-economic factors, and stress exposure, may play a role in increasing unhealthy weight gain in migrant populations. This unhealthy weight gain leads to similar or greater obesity risk in migrant populations compared with native populations 10-15 years after migration. Meeting the challenge of prevention and treatment of obesity in diverse populations will require greater attention to minority groups in research in the future.

Study Protocol for a Home-based Obesity Prevention Program in Latino Preschool Children

PURPOSE

This paper describes the study design for ANDALE Pittsburgh, a culturally-appropriate, family-based intervention to promote a healthy weight in Latino preschool children.

METHODS/DESIGN

The study was organized into two major phases: Phase I: Conduct focus groups with 30 Latino parents of preschool children to inform the development of a culturally-appropriate intervention; Phase II: Test the feasibility and effectiveness of the intervention with 50 families. Participants were recruited from an emerging Latino community through community gatherings, flyers, and word of mouth. Six promotoras (females >18 years, active in community) received 25 hours of training using the intervention curriculum finalized after Phase I. Promotoras delivered the home-based intervention to families over 10, 90-minute weekly sessions that included education, practice, and action (i.e., goal setting). Behavior modification constructs and strategies (e.g., goal setting, problem solving, social support), and building of self-efficacy through healthy recipe preparation and physical activity breaks, were also included. Outcomes (e.g., child BMI) were assessed pre- and post-intervention. Process evaluation assessed fidelity, dose, reach, recruitment, and contextual factors using multiple data sources and mixed methods.

DISCUSSION

The ANDALE Pittsburgh study will expand the body of knowledge on interventions to promote a healthy weight in Latino preschool children living in an emerging Latino community. If successful, this approach will be evaluated in a future, larger-scale intervention and provide a potential model to help to address and prevent obesity in this population.

Dissecting and customising the Childhood Obesity Prevention Advisory Council (COPAC): the development and application of a community engagement framework to improve childhood obesity prevention among migrant populations

Background: Migrant communities in Australia bear a disproportionate childhood obesity burden. They also show poor engagement in obesity prevention initiatives which may contribute to widening obesity disparities. Community engagement has been shown to be effective in reducing health disparities by improving migrant communities’ participation in prevention programmes.

Objective: This study aimed to develop a community engagement framework to improve childhood obesity prevention among migrants.

Design: Based on the African Review Panel model and the Community-Based Participatory Research conceptual logic model, the Childhood Obesity Prevention Advisory Council (COPAC) framework was developed and established in four disadvantaged areas in Victoria, Australia. The COPAC included service providers and migrant community members from the same project’s site.

Results: COPAC demonstrated several benefits including cross-organisational and multidisciplinary collaborations; understanding of the cultural barriers in childhood obesity prevention; enthusiasm from the COPAC members in addressing childhood obesity in their multicultural communities; equitable involvement, motivation, and empowerment of COPAC members in research development; and establishing organisational affiliations to foster long-term community involvement. This study also documented several challenges in community engagement including lack of prioritisation of migration-related childhood obesity disparities by the policymakers; staffing constraints among service providers leading to frequent disruptions in COPAC members’ contributions; and lack of adequate training and skill-building of bicultural workers.

Conclusions: The COPAC model adopted a flexible and dynamic community engagement process to suit the ongoing needs of the migrant community which incorporated the existing talents and resources within the community. For effective community engagement of migrant communities, it is important for policymakers to develop the knowledge, capacity and skills of the bicultural migrant workforce. Integrating both service providers and migrant community members in the COPAC has demonstrated that a multifaceted community-led approach has the potential to reduce childhood obesity-related disparities in Australia.

Barriers and facilitators to childhood obesity prevention among culturally and linguistically diverse (CALD) communities in Victoria, Australia

OBJECTIVE

Childhood obesity is rising among culturally and linguistically diverse (CALD) groups who show poor engagement in obesity prevention initiatives. We examined the barriers and facilitators to the engagement of CALD communities in obesity prevention initiatives.

METHODS

We used the nominal group technique to collect data from 39 participants from Vietnamese, Burmese, African, Afghani and Indian origins living in disadvantaged areas of Victoria, Australia. Data analysis revealed ranked priorities for barriers and facilitators for CALD community engagement in obesity prevention initiatives.

RESULTS

CALD parents identified key barriers as being: competing priorities in the post-migration settlement phase; language, cultural and program accessibility barriers; low levels of food and health literacy; junk food advertisement targeting children; and lack of mandatory weight checks for schoolchildren. Key facilitators emerged as: bicultural playgroup leaders; ethnic community groups; and school-based healthy lunch box initiatives.

CONCLUSION

This study has identified several policy recommendations including: the implementation of robust food taxation policies; consistent control of food advertising targeting children; improving CALD health literacy using bicultural workers; and matching health promotional materials with CALD community literacy levels. Implications for Public Health: These recommendations can directly influence public health policy to improve the engagement of CALD communities in obesity prevention services and ultimately reduce the widening obesity disparities in Australia.

Exploring Service Providers' Perspectives in Improving Childhood Obesity Prevention among CALD Communities in Victoria, Australia

BACKGROUND

Childhood obesity rates have been increasing disproportionately among disadvantaged communities including culturally and linguistically diverse (CALD) migrant groups in Australia due to their poor participation in the available obesity prevention initiatives. We sought to explore service providers' perceptions of the key factors influencing the participation of CALD communities in the existing obesity prevention services and the service requirements needed to improve CALD communities' participation in these services.

METHODS

We conducted a qualitative study using focus group discussions involving fifty-nine service providers from a range of services, who are involved in the health and wellbeing of children from CALD groups living in four socioeconomically disadvantaged areas in Victoria, Australia.

RESULTS

Thematic analysis of the data showed three major themes including community-level barriers to CALD engagement in childhood obesity prevention services; service-level barriers to the delivery of these services; and proposed changes to current childhood obesity prevention approaches. Integrating obesity prevention messages within existing programs, better coordination between prevention and treatment services and the establishment of a childhood obesity surveillance system, were some of the important changes suggested by service providers.

CONCLUSION

This study has found that low CALD health literacy, lack of knowledge of cultural barriers among service providers and co-existing deficiencies in the structure and delivery of obesity prevention services negatively impacted the participation of CALD communities in obesity prevention services. Cultural competency training of service providers would improve their understanding of the cultural influences of childhood obesity and incorporate them into the design and development of obesity prevention initiatives. Service providers need to be educated on the pre-migratory health service experiences and health conditions of CALD communities to ensure equitable delivery of care. Collaborative approaches between health systems, immigrant services, early years' services and community health services are urgently needed to address obesity-related disparities in Australia.

Systematic review of paediatric weight management interventions delivered in the home setting

To increase their accessibility, paediatric weight management interventions are increasingly designed to be delivered in the home setting by trained staff. This systematic review summarizes the available evidence for interventions featuring home visitation and identifies key gaps in the literature. PubMed, CINAHL, Cochrane and PsycINFO were searched for intervention studies that reported change in objectively measured adiposity outcomes in youth ages 2-18 years. Studies published between 1 January 1995 and 12 February 2016 were analysed. Of 15 eligible studies, nine reported that interventions with home visitation were either superior to a control/comparison condition or achieved significant within-subjects reductions in adiposity. Interventions in which professional staff (e.g. dietitians and exercise trainers) conducted home visits tended to be more efficacious than those delivered by paraprofessional or community-based staff, as were interventions with more frequent contact. Most studies were judged to have low or unclear risk of bias across various domains. As most studies compared interventions with home visits with less intensive and qualitatively different approaches, it remains unclear whether home visitation per se enhances weight loss efficacy. Overall, paediatric weight management interventions that feature home visitation are promising, but the incremental benefit of the home visitation treatment modality remains to be rigorously evaluated. © 2016 World Obesity.

Effects of an Obesity Prevention Intervention on Physical Activity Among Preschool Children: The CHILE Study

Background Limited research addresses interventions to increase physical activity among American Indian and Hispanic preschool-aged children living in rural areas. We examined the impact of a Head Start-based intervention (Child Health Initiative for Lifelong Eating and Exercise [CHILE]) on physical activity at home. Method Sixteen Head Start centers in predominantly Hispanic or American Indian communities were group randomized to the six-component intervention or a comparison group for 2 years. Structured surveys were administered at four assessment times to a convenience sample of caregivers of 655 children in the study. Multilevel modeling was used to assess the effects of the intervention on physical activity. Results The relative change in physical activity in the intervention group compared with the comparison group over the 2-year period was 1.56 (95% confidence interval [1.02, 2.38]; p = .04). Among specific promoted activities (ball playing, dancing, active games, jumping, and walking), dancing increased significantly in the intervention compared with the comparison group (2.9; 95% confidence interval [1.2, 7.1]; p = .02). Conclusions The CHILE intervention was effective at increasing physical activity at home in preschool children in priority populations. Future research should focus on increasing family involvement and strengthening messaging about physical activity in these populations.

CHILE: Outcomes of a group randomized controlled trial of an intervention to prevent obesity in preschool Hispanic and American Indian children

OBJECTIVE

We examined the outcomes of the Child Health Initiative for Lifelong Eating and Exercise (CHILE) study, a group randomized controlled trial to design, implement, and test the efficacy of a trans-community intervention to prevent obesity in children enrolled in Head Start centers in rural American Indian and Hispanic communities in New Mexico.

METHODS

CHILE was a 5-year evidence-based intervention that used a socioecological approach to improving dietary intake and increasing physical activity of 1898 children. The intervention included a classroom curriculum, teacher and food service training, family engagement, grocery store participation, and healthcare provider support. Height and weight measurements were obtained four times (fall of 2008, spring and fall of 2009, and spring of 2010), and body mass index (BMI) z-scores in the intervention and comparison groups were compared.

RESULTS

At baseline, demographic characteristics in the comparison and intervention groups were similar, and 33% of all the children assessed were obese or overweight. At the end of the intervention, there was no significant difference between the two groups in BMI z-scores.

CONCLUSIONS

Obesity prevention research among Hispanic and AI preschool children in rural communities is challenging and complex. Although the CHILE intervention was implemented successfully, changes in overweight and obesity may take longer than 2years to achieve.

Pasos Saludables: A Pilot Randomized Intervention Study to Reduce Obesity in an Immigrant Farmworker Population

OBJECTIVE

To evaluate a workplace-based diet and physical activity intervention to reduce obesity in a Latino farmworker population.

METHODS

254 Latino farmworkers were allocated in a 1:2 control:intervention ratio to parallel groups in this randomized controlled study, [Clinical Trial ID# NCT01855282]. Intervention participants attended 10 weekly educational sessions led by promotoras. All participants had anthropometry and lifestyle habits recorded before randomization and at follow-up after 12-14 weeks.

RESULTS

Seventy percent (n = 112 intervention and 66 control) completed the study. Intervention females (not controls) decreased the primary outcome measures of weight, BMI, and waist circumference (mean [95% CI]) of -0.7 [-1.3 to -0.1] kg, -0.3 [-0.4 to -0.2] and -0.9 [-1.7 to -0.1] cm, respectively. Intervention participants increased water consumption, fruit and vegetable servings, and moderate physical activity in a dose-dependent fashion.

CONCLUSIONS

The successful pilot workplace intervention offers a model to reach otherwise difficult-to-access Latino farmworkers.

Health Issues in Hispanic/Latino Youth

This review focuses on obesity, asthma and mental health functioning as salient health issues affecting Hispanic youth. Burden of these conditions and consequences for adult health are also discussed. Hispanic youth are affected by obesity at an early age; the prevalence of obesity among Hispanic children 6-11 years old is twice as high as the prevalence for non-Hispanic White children of the same age, but among 2-5 years old is 4 times higher. Asthma disproportionally affects certain Hispanic groups, notably children of Puerto Rican ancestry, and the comorbidity of asthma and obesity is an emerging health issue. Another area of concern is the scant data on mental health functioning among Hispanic youth. Research on Hispanic youth mental health have reported high rates of depressive symptomatology and high rates of alcohol use among Hispanic adolescents but despite these findings, they have inadequate access to mental health services. This review highlights the need for better data to gain a better understanding of the health status of Hispanic youth and help develop preventive programs that addresses the need of this population. Improving access to health services, in particular mental health services, is also a crucial aspect.

Exploring the role of community engagement in improving the health of disadvantaged populations: a systematic review

BACKGROUND

Although community engagement (CE) is widely used in health promotion, components of CE models associated with improved health are poorly understood. This study aimed to examine the magnitude of the impact of CE on health and health inequalities among disadvantaged populations, which methodological approaches maximise the effectiveness of CE, and components of CE that are acceptable, feasible, and effective when used among disadvantaged populations.

DESIGN

The systematic review followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. We carried out methodological assessments of the included studies using rating scales. The analysis focussed on model synthesis to identify the key CE components linked to positive study outcomes and comparative analysis between positive study outcomes, processes, and quality indicators of CE.

RESULTS

Out of 24 studies that met our inclusion criteria, 21 (87.5%) had positively impacted health behaviours, public health planning, health service access, health literacy, and a range of health outcomes. More than half of the studies (58%) were of good quality, whereas 71% and 42% of studies showed good community involvement in research and achieved high levels of CE, respectively. Key CE components that affected health outcomes included real power-sharing, collaborative partnerships, bidirectional learning, incorporating the voice and agency of beneficiary communities in research protocol, and using bicultural health workers for intervention delivery.

CONCLUSIONS

The findings suggest that CE models can lead to improved health and health behaviours among disadvantaged populations if designed properly and implemented through effective community consultation and participation. We also found several gaps in the current measurement of CE in health intervention studies, which suggests the importance of developing innovative approaches to measure CE impact on health outcomes in a more rigorous way.

Length of urban residence and obesity among within-country rural-to-urban Andean migrants

Objective

To evaluate the association between length of residence in an urban area and obesity among Peruvian rural-to-urban migrants.

Design

Cross-sectional database analysis of the migrant group from the PERU MIGRANT Study (2007). Exposure was length of urban residence, analysed as both a continuous (10-year units) and a categorical variable. Four skinfold site measurements (biceps, triceps, subscapular and suprailiac) were used to calculate body fat percentage and obesity (body fat percentage >25% males, >33% females). We used Poisson generalized linear models to estimate adjusted prevalence ratios and 95 % confidence intervals. Multicollinearity between age and length of urban residence was assessed using conditional numbers and correlation tests.

Setting

A peri-urban shantytown in the south of Lima, Peru.

Subjects

Rural-to-urban migrants (n 526) living in Lima.

Results

Multivariable analyses showed that for each 10-year unit increase in residence in an urban area, rural-to-urban migrants had, on average, a 12 % (95 % CI 6, 18 %) higher prevalence of obesity. This association was also present when length of urban residence was analysed in categories. Sensitivity analyses, conducted with non-migrant groups, showed no evidence of an association between 10-year age units and obesity in rural (P=0·159) or urban populations (P=0·078). High correlation and a large conditional number between age and length of urban residence were found, suggesting a strong collinearity between both variables.

Conclusions

Longer lengths of urban residence are related to increased obesity in rural-to-urban migrant populations; therefore, interventions to prevent obesity in urban areas may benefit from targeting migrant groups.

Our Choice/Nuestra Opción: the Imperial County, California, Childhood Obesity Research Demonstration study (CA-CORD)

BACKGROUND

Despite recent declines among young children, obesity remains a public health burden in the United States, including among Latino/Hispanic children. The determining factors are many and are too complex to fully address with interventions that focus on single factors, such as parenting behaviors or school policies. In this article, we describe a multisector, multilevel intervention to prevent and control childhood obesity in predominantly Mexican-origin communities in Southern California, one of three sites of the CDC-funded Childhood Obesity Research Demonstration (CA-CORD) study.

METHODS

CA-CORD is a partnership between a university-affiliated research institute, a federally qualified health center, and a county public health department. We used formative research, advisory committee members' recommendations, and previous research to inform the development of the CA-CORD project. Our theory-informed multisector, multilevel intervention targets improvements in four health behaviors: fruit, vegetable, and water consumption; physical activity; and quality sleep. Intervention partners include 1200 families, a federally qualified health center (including three clinics), 26 early care and education centers, two elementary school districts (and 20 elementary schools), three community recreation centers, and three restaurants. Intervention components in these sectors target changes in behaviors, policies, systems, and the social and physical environment. Evaluation activities include assessment of the primary outcome, BMI z-score, at baseline, 12-, and 18-months post-baseline, and sector evaluations at baseline, 12, and 24 months.

CONCLUSIONS

Identifying feasible and effective strategies to prevent and control childhood obesity has the potential to effect real changes in children's current and future health status.