Alaska Native Parents' Decision-Making About Food, Beverages, and Screen Time for Young Children: Formative Insights From the "Got Neqpiaq?" Project

With rising childhood obesity rates, ensuring children adopt healthy habits early is imperative. Given the unique context for Alaska Native families living in rural remote communities, who are concurrently experiencing changes in traditional practices, we investigated what impacts parents' decisions as they relate to daily living before revising a preschool curriculum focused on healthy habits. The objective of this study was to explore factors influencing parents' decisions about their children's foods, beverages, and activities. In focus group discussions with AN parents of young children across 12 communities, we asked about meals, traditional foods, beverages, physical activity, and screen time. All sessions were recorded, transcribed, and analyzed using open and selective coding to allow the most important themes to emerge. As parents discussed how they make decisions, several trends emerged related to adults' and children's food and beverage preferences; the impact of adult modeling on children; and how convenience, seasonality, access, and a reluctance to engage in conflict all impact decision-making. Parents and other community members shared important perspectives on exposing children to traditional subsistence foods and activities and passing important traditional knowledge to them at an early age. These perspectives will form the basis for preschool curricula in these communities.

Weight Status Among Minnesota Hispanic or Latino/a Youth: An Exploration of Protective Factors

PURPOSE

Pediatric obesity disproportionately impacts Hispanic or Latino/a adolescents. Culturally appropriate family-based behavioral initiatives to improve weight status are warranted. The purpose of this research was to determine prevalence rates and identify protective factors associated with having overweight/obesity (body mass index ≥ 85^th percentile) to inform Hispanic or Latino/a-targeted behavioral intervention development.

DESIGN

Secondary data analyses of a population-based statewide survey.

SETTING

Minnesota public high schools.

PARTICIPANTS

Male (n = 2,644) and female (n = 2,798) Hispanic or Latino/a 9^th and 11^th graders (N = 5,442).

MEASURES

Obesity-related behaviors (meeting fruit and vegetable [F&V] and physical activity [PA] recommendations), family caring, family country/region of origin, and weight status.

ANALYSIS

Stepwise logistic regression models (F&V, PA), stratified by biological sex, were used to identify protective factors of overweight/obesity.

RESULTS

The overall prevalence of meeting F&V and PA recommendations was 11.0% and 11.8%, respectively. Meeting F&V recommendations was not protective against overweight/obesity in either sex. Yet, males and females who met PA recommendations had significantly lower odds of having overweight/obesity (p < .05). In F&V and PA models, family caring was protective against overweight/obesity in females (p < .05), and family country/region of origin was protective against overweight/obesity in both sexes (p < .05).

CONCLUSION

Findings illustrate a need for obesity prevention initiatives for Hispanic or Latino/a youth. More research is needed to understand the protective nature of family caring and country/region of origin.

Toward Systems Models for Obesity Prevention: A Big Role for Big Data

The relation among the various causal factors of obesity is not well understood, and there remains a lack of viable data to advance integrated, systems models of its etiology. The collection of big data has begun to allow the exploration of causal associations between behavior, built environment, and obesity-relevant health outcomes. Here, the traditional epidemiologic and emerging big data approaches used in obesity research are compared, describing the research questions, needs, and outcomes of 3 broad research domains: eating behavior, social food environments, and the built environment. Taking tangible steps at the intersection of these domains, the recent European Union project "BigO: Big data against childhood obesity" used a mobile health tool to link objective measurements of health, physical activity, and the built environment. BigO provided learning on the limitations of big data, such as privacy concerns, study sampling, and the balancing of epidemiologic domain expertise with the required technical expertise. Adopting big data approaches will facilitate the exploitation of data concerning obesity-relevant behaviors of a greater variety, which are also processed at speed, facilitated by mobile-based data collection and monitoring systems, citizen science, and artificial intelligence. These approaches will allow the field to expand from causal inference to more complex, systems-level predictive models, stimulating ambitious and effective policy interventions.

Pediatric Obesity Prevention and Treatment Among Hispanics: A Systematic Review and Meta-Analysis

INTRODUCTION

The rates of pediatric obesity in the U.S. are highest among Hispanics. There is no existing meta-analysis of the effects of obesity interventions among Hispanic youth. This systematic review and meta-analysis assesses the effects of obesity prevention and treatment interventions on Hispanic youth's weight status and lifestyle behaviors.

METHODS

PubMed, PsycINFO, and Scopus were searched between January 1, 2000 and October 30, 2020. Interventions with ≥50% Hispanic youth aged 0-18 years were included. Using a weighted inverse-variance procedure, fixed-effects and random-effects models were run for an overall effect size on the basis of the Q_total test statistic. Hedges' g was calculated for outcomes of interest between baseline and postintervention separately for studies with multiple versus single conditions. Continuous and categorical moderators were also examined.

RESULTS

A total of 1,103 articles were screened, of which 117 were included in the narrative synthesis and 105 in the meta-analysis (n=49,276 youth). The overall effects for RCT/quasi-experimental studies on BMI status (g= -0.15, SE=0.03, 95% CI= -0.20, -0.10), waist circumference (g= -0.15, SE=0.10, 95% CI= -0.35, -0.05), physical activity (g=0.12, SE=0.05, 95% CI=0.03, 0.22), fruit and vegetable intake (g=0.08, SE=0.02, 95% CI=0.03, 0.12), and sugar-sweetened beverage intake (g= -0.07, SE= 0.03, 95% CI= -0.13, -0.01) were small. Intervention effects varied by participant developmental stage, SES, study setting, and lifestyle behavior target.

DISCUSSION

Beyond developing more impactful interventions to address obesity among Hispanic youth, findings highlight the need for targeted policies and more easily disseminable interventions that can spread small effects across a population for maximal public health impact.

Skin Carotenoid Scores Assessed with Reflection Spectroscopy Are Associated with Self-Reported Fruit and Vegetable Intake Among Latino Early Adolescents

BACKGROUND

Latino early adolescents have a high prevalence of overweight and obesity. Interventions to address healthy eating among Latino youth frequently focus on fruit and vegetable (FV) intake. Reflection spectroscopy assessed skin carotenoid (SC) levels has been proposed as an easy, noninvasive method to evaluate FV intake, but validation studies involving ethnically diverse youth are lacking.

OBJECTIVE

This study aimed to assess the association between reflection spectroscopy-measured SC scores and self-reported FV intake among low-income, urban, Latino early adolescents, controlling for potential confounding factors.

DESIGN

This study was a cross-sectional secondary analysis of baseline data from a community-based intervention program (Padres Preparados, Jóvenes Saludables) involving Latino fathers and adolescents to improve paternal parenting practices and youth energy balance-related behaviors.

PARTICIPANTS/SETTING

Participants were 195 low-income, Latino early adolescents (aged 10 to 14 years). Data were collected in the Minneapolis/St Paul metropolitan area from 2017 to 2020 during fall or winter months.

MAIN OUTCOME MEASURES

SC scores were measured using reflection spectroscopy, usual intakes of FV and carotenoid compounds were estimated based on the assessment using 24-hour dietary recalls.

STATISTICAL ANALYSIS

Multivariable linear regression analyses were used to estimate associations of SC scores and each dietary component and potential confounding factors after assessing variables for inclusion in the analyses.

RESULTS

The mean SC score was 225 ± 95. The mean FV and total carotenoid intakes were 3.3 ± 0.5 servings/day and 8,360 ± 786 μg/day, respectively. Higher SC scores were observed among youth who had higher FV (β = .37 and P < 0.01) or total carotenoid intakes (β = .31 and P < 0.01). SC scores measured during fall were higher than scores measured during winter. Study participants with higher home FV availability and accessibility had higher SC scores.

CONCLUSIONS

Findings supported using SC score as a potential easy-to-use indicator of FV intake among Latino youth with consideration of seasonal variation and home FV availability and accessibility.

Expanding our understanding and use of the ecological systems theory model for the prevention of maternal obesity: A new socioecological framework

The reproductive life phase, most notably the preconception, pregnancy and postpartum periods, is a key driver of weight gain in women and therefore substantially increases the risk of noncommunicable diseases for mothers and their offspring. The ecological systems theory (EST) model for maternal obesity prevention positions the woman and her behaviour as interacting with surrounding layers of influences, including proximal interpersonal relationships embedded within social, environmental, and policy contexts. However, current thinking and use of the EST model for maternal obesity prevention are limited by a focus on women as being responsible for lifestyle change, with the associated blame and weight stigma, and by a lack of understanding of the interactions between EST layers. This paper presents a new socioecological framework for maternal obesity prevention, which aims to address these issues and offer potential strategies to assist researchers to generate new knowledge and understanding of the myriad ways we can approach maternal obesity prevention.

Effectiveness of lifestyle interventions in preventing harmful weight gain among adolescents: A systematic review of systematic reviews

Obesity in adolescence is associated with stigma during school years, early emergence of co-morbidities in adulthood and premature mortality. Adolescence presents a key window of opportunity to intervene for building healthy eating and physical activity routines and prevent weight gain. This review of reviews assesses the evidence on the effectiveness of prevention interventions conducted with adolescents. Nine reviews assessing the effects of lifestyle interventions in adolescents (defined as age 10 to 19 years old) on weight gain were identified from the 10 health databases searched. Only four reviews conducted meta-analyses, of which, three (two exercise-focused) demonstrated positive changes in primary outcomes of body mass index (BMI) and/or BMI z-score (range of decrease in BMI from 0.06 to 0.47 kg/m²⁾ ). Most were conducted in school settings, and all but two reviews were of low quality. Few reviews reported external validity components that would enable clearer directions for policy makers to implement in real-world settings. More than 140 distinct interventions were included in the reviews, but there remains a serious gap in evidence for effective interventions in adolescents.

Associations of Partner Support and Acculturation With Physical Activity in Mexican American Women

INTRODUCTION

Insufficient physical activity (PA) and obesity-related health conditions have reached epidemic proportions worldwide. Mexican American women (MAW) report low leisure time physical activity. Few studies examine activities beyond leisure time. Qualitative research suggests that partner support influence provides a cultural approach relevant to PA among MAW.

METHOD

This cross-sectional study used an ecological model to investigate community (the physical environment), interpersonal (partner support, attitudinal familism), and intrapersonal (age, health conditions, acculturation, employment, and body mass index) factors associated with PA among 112 MAW. Community-based participatory research recommendations guided the preparatory phase of the study and the face-to-face interviews. Frequencies and descriptive statistics were computed. Multivariable linear regression analyses were used to examine associations between study variables.

RESULTS

Moderate to high PA levels were found based on combined activities performed during leisure time, transportation, household tasks, and occupational duties. Women with greater partner support reported higher PA levels. Although acculturation levels were low among women, those with higher acculturation were found to be more physically active.

CONCLUSIONS

Future studies should examine strategies to increase partner support and address acculturation within intervention programs to enhance overall PA among MAW.

Qualitative analysis of COACH: A community-based behavioral intervention to reduce obesity health disparities within a marginalized community

Background

The purpose of this study was to conduct a qualitative evaluation of a behavioral intervention to prevent and treat childhood obesity in minority children. Using qualitative methods to augment understanding of intervention success may be one way to gain insight into the types of behavior change strategies that are most effective in childhood obesity interventions.

Methods

COACH was a randomized controlled trial of 117 Latino parent-child (ages 3–5) pairs in Nashville, TN that resulted in improved child BMI in intervention vs. control families at 1-year follow-up. All participant parents were invited to focus groups after the trial. Discussions were audiotaped, transcribed, and translated into English. A hierarchical coding scheme was generated, and qualitative analysis done using an inductive/deductive approach. Both theme saturation and consensus between the coders were achieved. Responses were compared between intervention and control groups.

Results

We conducted seven focus groups with 43 participants. 4 themes emerged from the intervention group: 1) perceived barriers to health behavior change; 2) strategies learned to overcome perceived barriers; 3) behavioral changes made in response to the program; and 4) knowledge, skills, and agency for family health behaviors. 4 themes emerged from the control group: 1) a desire to engage in health behaviors without specific strategies; 2) common set of barriers to health behavior change; 3) engagement in literacy activities, including creative problem-solving strategies; and 4) changes made in response to study visits. Analysis of coded data showed the intervention increased healthy behaviors (e.g., fruit/vegetable consumption) despite barriers (e.g., time, cost, culture, family dynamics). Intervention participants described using specific behavior change strategies promoted by the intervention including: substituting ingredients in culturally-normative recipes; avoiding grocery shopping when hungry; and coping with inability to meet goals with acceptance and problem-solving. Control participants reported little success in achieving healthy changes for their family. Intervention participants described successful health behavior changes that were shared across generations and were maintained after the program. Intervention participants reported increased awareness of their own agency in promoting their health.

Conclusions

Qualitative evaluation of COACH provides a more detailed understanding of the intervention's quantitative effectiveness: child and adult health behaviors and personal agency were improved.

Multilevel interventions to prevent and reduce obesity

The complex, multilevel causes of the ongoing obesity epidemic necessitate multilevel approaches to address the problem. Accordingly, interest in multilevel obesity interventions has expanded rapidly in recent years. We conducted an updated literature review of multilevel interventions for obesity prevention and reduction. We identified six protocols and six articles on completed studies that were published between January 2016 and September 2018. Of the completed studies, four found significant intervention effects on body mass index and/or waist circumference. Two showed significant improvements in diet and two showed significant improvements in physical activity. These studies highlight the promise multilevel interventions offer for addressing obesity at the population level.