Increasing socioeconomic disparities in adolescent obesity

Family wealth and adolescent physical health

Inequalities in the distribution of wealth among families with children may have deleterious health consequences, especially for adolescent children. Marked by significant psychosocial and physiological changes, adolescence is a period when socioeconomic differences in chronic disease risk factors are observed. Unfortunately, research on socioeconomic inequalities in adolescent health has overlooked wealth, focusing instead on differences in health based on household income and parental educational attainment. Expanding our knowledge of wealth's role in shaping adolescents' current and long-term health is of critical public health concern, especially as wealth is more unequally distributed than income. This review discusses what is known about wealth-related inequalities in adolescent physical health and proposes four psychosocial mechanisms that may explain how wealth shapes adolescent physical health including (1) serving as a stress-buffer; (2) enabling parents to invest in opportunities to support adolescent healthy development; (3) increasing families' access to social and cultural capital resources that may promote salutary health behaviours while mitigating experiences of social-class discrimination; (4) and supporting adolescents' future expectations. We end with a discussion of existing questions and suggestions for future research to add to our understanding of wealth-related inequalities in adolescent physical health, which could be used to inform health equity interventions.

Management of adolescent obesity in developing countries: A systematic review

Background: Adolescent obesity is a menace that demands a multi-factorial approach to its management and prevention. Aim: The purpose of this review was to assess interventions used in the management of adolescent obesity in developing countries. Methods: Electronic search were conducted between January 2000 and December 2022 on six databases: Pubmed, GoogleScholar, CINAHL, SCOPUS, Cochrane Library and Science Direct and three clinical trial registries: Pan African Clinical Trial, World Health Organization and clinicalTrial.gov. The quality of the included studies was assessed using the Effective Public Health Practice Project. Results: Eighteen studies met the inclusion criteria. The studies were conducted in Africa (N = 7), Asia (N = 6) and South America (N = 5). The sample size ranged from 10 to 4003 at baseline. The studies were carried out in schools (N = 13) and hospitals (N = 5) with four main varied designs: controlled trial (N = 7), quasi-experimental (N = 3), cohort (N = 3) and longitudinal (N = 4). The duration of the interventions ranged from six weeks to three years. The interventions were nutrition education (NE) and physical education (PE) (N = 11), PE only (N = 3), Surgery/NE (N = 1), Surgery/NE/PE (N = 1) and psychotherapy/NE/PE (N = 2). Three studies that used NE and PE and five studies that used same reported significant differences in body mass index for-age z score (zBMI) and waist circumference, respectively. Studies that included surgeries in the interventions reported significant differences in weight, zBMI and waist-to-hip ratio. Conclusions: Few intervention studies have been done on management of adolescent obesity in developing countries and largely effective. All interventions prioritized nutrition and/or PE. The studies were largely school-based.

Elite class self-interest, socioeconomic inequality and U.S. population health

Class-based perspectives on the persistent social gradients in health within modern welfare states largely focus on the adverse consequences of unfettered neoliberalism and entrenched meritocratic socioeconomic selection. Namely, neoliberal-driven economic inequality has fuelled resentment and stress among lower-status groups, while these groups have become more homogeneous with regard to health behaviours and outcomes. We synthesise several sociological and historical literatures to argue that, in addition to these class-based explanations, socioeconomic inequality may contribute to persistent social gradients in health due to elite class self-interest-in particular elites' preferences for overdiagnosis, overprescription and costly high-technology medical treatments over disease prevention, and for increased tolerance for regulatory capture. We demonstrate that this self-interest provides parsimonious explanations for several contemporary trends in U.S. health inequality including (A) supply-side factors in drug-related deaths, (B) longitudinal trends in the social gradients of obesity and chronic disease mortality and (C) the immigrant health advantage. We conclude that sociological theories of elite class self-interest usefully complement theories of the psychosocial effects of neoliberalism and of meritocratic social selection while answering recent calls for research on the role advantaged groups play in generating inequalities in health, and for research that moves beyond technological determinism in health sociology.

Lifetime healthcare expenditures across socioeconomic groups

BACKGROUND

A socioeconomic gradient affects healthcare expenditures and longevity in opposite directions as less affluent individuals have higher current healthcare expenditures but simultaneously enjoy shorter lives. Yet, it is unclear whether this cross-sectional healthcare expenditure gradient persists from a lifetime perspective. This paper analyzes lifetime healthcare expenditures across socioeconomic groups using detailed individual-level healthcare expenditure data for the entire Danish population.

METHOD

Using full population healthcare expenditures from Danish registries, we estimate lifetime healthcare expenditures as age-specific mean healthcare expenditures times the probability of being alive at each age. Our data enables the estimation of lifetime healthcare expenditures by sex, socioeconomic status, and by various types of healthcare expenditure.

RESULTS

Once we account for mortality differences and all types of healthcare expenditures, all socioeconomic groups spend an almost equal amount on healthcare throughout a lifetime. Lower socioeconomic groups incur the lowest lifetime hospital expenditures, whereas higher socioeconomic groups experience the highest lifetime expenditures on long-term care services. Our findings remain robust across various socioeconomic measures and alternative estimation methodologies.

CONCLUSION

Improving the health status of lower socioeconomic groups to align with that of higher socioeconomic groups is costly but may ultimately reduce current healthcare expenditures. Enhanced health outcomes likely increase lifespan, leading to extended periods of healthcare consumption. However, since all socioeconomic groups tend to have similar lifetime healthcare expenditures, this prolonged consumption has limited impact on overall lifetime healthcare costs. Additionally, a significant benefit is the deferment of healthcare expenditures into the future. Overall, our results diminish concerns about socially inequitable utilization of healthcare resources while socioeconomic differences in health and longevity persist, even in a universal healthcare system.

Trends and key disparities of obesity among US adolescents: The NHANES from 2007 to 2020

This study aimed to estimate the trends in the body mass index (BMI) and prevalence of obesity among United States (U.S.) adolescents (10-19 years) and to examine the associations between sociodemographic factors and both BMI and obesity prevalence. The 2007-2020 National Health and Nutrition Examination Survey (NHANES), a nationally representative repeated cross-sectional survey data (n = 9,826) were used. Outcomes included: 1) Mean BMI and 2) obesity (yes/no; defined as BMI ≥95% percentile). Sociodemographic variables included age, sex, race/ethnicity, and poverty income ratio (PIR; low-income <1.3, middle-income ≥1.3 and <3.5, high-income ≥3.5). By accounting for the complex survey design, weighted generalized linear/Poisson models were used to conduct the analyses. Girls constituted 49% of the sample. From 2007-2008 to 2017-2020, there was an increase in BMI and obesity prevalence, particularly among Black and Hispanic adolescents, and those from low- and middle-income families. Additionally, there was an increase in obesity prevalence among both boys and girls. However, there were no significant changes in BMI and obesity prevalence in the other race and ethnic adolescents. Girls had a 12% (Adjusted Prevalence Ratio [APR] = 0.88; 95% CI, 0.81-0.96) lower likelihood of being obese than boys. Compared to White adolescents, Black and Hispanic adolescents had 22% (APR = 1.22; 95% CI, 1.06-1.40) and 19% (APR = 1.19; 95% CI, 1.05-1.36) greater risk of being obese. Compared to high-income families, adolescents from low- and middle-income families had 62% (APR = 1.62; 95% CI, 1.39-1.90) and 47% (APR = 1.47; 95% CI, 1.24-1.76) greater risk of being obese, respectively. The results indicated persistent disparities in obesity prevalence among different race/ethnic and sociodemographic groups. Future obesity intervention should address key disparities by targeting specific race/ethnic adolescents from low-income families and promoting health equality.

Grandparents' educational attainment is associated with grandchildren's epigenetic-based age acceleration in the National Growth and Health Study

We examined three generations (grandparents, mothers, and grandchildren) to assess the association between grandparents' educational attainment and their grandchildren's epigenetic-based age acceleration and whether the association was mediated by parental educational attainment and mothers' life course health-related factors. Mothers were recruited to the NHLBI Growth and Health Study at 9-10 years and followed for 10 years (1987-1998). Mothers were then re-contacted three decades later (ages 37-42) to participate in the National Growth and Health Study (NGHS), and health information from their youngest child (i.e., grandchildren; N = 241, ages 2-17) was collected, including their saliva samples to calculate epigenetic age. Five epigenetic-based age acceleration measures were included in this analysis, including four epigenetic clock age accelerations (Horvath, Hannum, GrimAge, and PhenoAge) and DunedinPACE. Grandparents reported their highest education during the initial enrollment interviews. Parental educational attainment and mothers' life course health-related factors (childhood BMI trajectories, adult cardiovascular health behavioral risk score, and adult c-reactive protein) are included as mediators. Grandparents' education was significantly associated with Horvath age acceleration (b = -0.32, SE = 0.14, p = 0.021). Grandchildren with college-degree grandparents showed significantly slower Horvath age accelerations than those without college degrees. This association was partially mediated by parental education and mothers' health-related factors, especially adult cardiovascular health behavioral risk score and CRP, but not mothers' childhood BMI trajectory. This ability to conserve the speed of biological aging may have considerable consequences in shaping health trajectories across the lifespan.

Effectiveness of interventions to reduce social inequalities of weight status in adolescents: A systematic review and meta-analysis

Many interventions are implemented in the public health context to overcome social inequalities of weight status in adolescents, but their effectiveness is challenged. This study aimed to examine the effectiveness of these interventions with a systematic review and meta-analysis. We systematically searched for reports of randomized control trials and quasi-experimental studies aiming to reduce social inequalities of weight status in adolescents in five electronic databases. The primary outcomes were social inequalities in weight-related outcomes (body mass index [BMI], BMI z score, waist circumference, percent body fat, prevalence of overweight/obesity). Interventions were effective when they reduced social inequalities in at least one weight-related outcome. Meta-analyses involved using random-effects models. The review included 38 publications (33 studies) with interventions mostly targeting disadvantaged adolescents (n = 29 studies), showing effectiveness in half of the studies (n = 19/33, 57.6%). The meta-analysis (27 studies) revealed that targeted interventions significantly reduced BMI z score (β = -0.04 [95% CI -0.08, -0.01]), BMI (β = -0.32 [-0.47, -0.18]), and waist circumference (β = -0.84 [-1.48, -0.21]) but not percent body fat (β = -0.27 [-0.71, 0.17]) or prevalence of overweight/obesity (odds ratio = 1.06 [0.85, 1.31]). This review shows moderate effectiveness of interventions targeting disadvantaged adolescents to reduce social inequalities of weight status. High-quality research with better implementation to reach their full potential is required to strengthen their effectiveness.

Dietary Patterns Among US Children: A Cluster Analysis

BACKGROUND

Most children in the United States consume low-quality diets. Identifying children's dietary patterns and their association with sociodemographic characteristics is important for designing tailored youth dietary interventions.

OBJECTIVE

This study's objective was to use cluster analysis to investigate children's dietary patterns and these patterns' associations with sociodemographic characteristics.

DESIGN

Data from two cycles (2015-2016 and 2017-2018) of the National Health and Nutrition Examination Survey were evaluated to examine dietary patterns.

PARTICIPANTS AND SETTING

Participants included 3,044 US youth aged 2 to 11 years who completed at least 1 valid 24-hour diet recall.

MAIN OUTCOME MEASURES

The main outcome measures were Healthy Eating Index (HEI) 2015 component and composite scores.

STATISTICAL ANALYSES PERFORMED

A cluster analysis was performed on standardized scores of 11 components of the HEI-2015 to identify dietary patterns. One logistic analysis combined the two higher-HEI score clusters and the 2 lower-HEI score clusters to form a 3-category variable of higher-, medium-, and lower-HEI score clusters. Another logistic analysis contrasted 2 higher- and then the 2 lower-HEI clusters with each other to examine sociodemographic factors contributing to cluster membership.

RESULTS

Five clusters were identified, each displaying a distinct dietary pattern. Older, non-Hispanic Black, and overweight children had higher odds of being in the higher-HEI clusters than the medium-HEI cluster. Being older and non-Hispanic Black were linked to higher odds of being in the lower-HEI clusters than the medium-HEI cluster. Conversely, being Mexican American and living with a college-educated reference person were associated with lower odds of being in the lower-HEI clusters compared with the medium-HEI cluster. Among the higher-HEI clusters, Mexican American and Asian American children had higher odds of being in the Pescatarian cluster. Among the lower-HEI clusters, children who were racially or ethnically minoritized had lower odds of being in the Excess Sugar cluster.

CONCLUSIONS

Children in this study displayed different dietary patterns, with key sociodemographic variation.

Using explainable machine learning and fitbit data to investigate predictors of adolescent obesity

Sociodemographic and lifestyle factors (sleep, physical activity, and sedentary behavior) may predict obesity risk in early adolescence; a critical period during the life course. Analyzing data from 2971 participants (M = 11.94, SD = 0.64 years) wearing Fitbit Charge HR 2 devices in the Adolescent Brain Cognitive Development (ABCD) Study, glass box machine learning models identified obesity predictors from Fitbit-derived measures of sleep, cardiovascular fitness, and sociodemographic status. Key predictors of obesity include identifying as Non-White race, low household income, later bedtime, short sleep duration, variable sleep timing, low daily step counts, and high heart rates (AUCMean = 0.726). Findings highlight the importance of inadequate sleep, physical inactivity, and socioeconomic disparities, for obesity risk. Results also show the clinical applicability of wearables for continuous monitoring of sleep and cardiovascular fitness in adolescents. Identifying the tipping points in the predictors of obesity risk can inform interventions and treatment strategies to reduce obesity rates in adolescents.

Diet quality and snack preferences of Turkish adolescents in private and public schools

Introduction

Socioeconomic level is one of the important factors determining diet quality. Snack preferences are affected by socioeconomic level. The objective of this research was to determine the effect of socioeconomic levels on diet quality and snack preferences among adolescents from different socioeconomic backgrounds.

Methods

The study involved 118 adolescents aged between 10-18 years residing in Istanbul. A questionnaire prepared by the researchers was used to obtain information on the adolescents' dietary habits, consumption of main meals and snacks, habits, and food consumption records. The participants' food consumption was assessed using the retrospective 24-hour recall method, and diet quality was evaluated using the calculated nutrient adequacy ratio (NAR) and mean adequacy ratio (MAR).

Results

The mean age of the adolescents was 16.42±0.89 years. The number of snacks consumed in private schools was found to be higher than in public schools (p < 0.05). The NAR score for vitamin C consumption was significantly higher in private schools compared to public schools (p < 0.05). Although the MAR scores of adolescents in private schools were higher than those in public schools, this difference was not statistically significant. The majority of adolescents in private schools regularly consumed fresh fruit (67.2%), milk (60.3%), yogurt (60.3%), and nuts (56.9%) as snacks. In contrast, 45% of adolescents in public schools regularly consumed pastries (p < 0.05).

Discussion

It was observed that adolescents studying in public schools had a lower tendency to prefer healthy foods for snacks compared to those in private schools. Socioeconomic level was identified as an important factor influencing eating habits during adolescence. Considering that the level of income is significantly different between the adolescents studying at private and public schools, the higher consumption of snacks by the adolescents studying at private school may be associated with higher income.

The Association Between Socioeconomic Status and Use of Time in Australian Children and Adolescents

PURPOSE

There are well-known socioeconomic status (SES) gradients in children and adolescents' health which may be associated with time use. Our aim was to evaluate the association between Australian children's 24-hour time use and SES using four separate surveys from 2005 to 2021.

METHODS

Time use was assessed in 4526 8-19-year-olds from the 2005 Health of Young Victorians, 2007 National Children's Nutrition and Physical Activity, 2015 Child Health CheckPoint, and 2019-21 Life on Holidays study. Each survey used the same reliable, valid, 24-hour recall instrument. SES was quantified using tertiles of household income, education, and postcode-level measures. Compositional data analysis was used to compare 24-hour time use between SES categories, adjusting for age, sex, and puberty.

RESULTS

Time-use compositions differed significantly by SES in each survey. Relative to the lowest SES, children from the highest SES accumulated on average 31 min/day more School-related time, 6 min/day more Passive Transport and 6 min/day more Self-care. Conversely, they accumulated 30 min/day less Screen Time (which included computer time), 11 min/day less sleep, and spent 7 min/day less in Domestic/Social activities. There were only small differences in Quiet Time and Physical Activity.

DISCUSSION

SES-related differences in time use were robust across ages 8-19, a 16-year timespan, diverse Australian geographical regions, and using different SES metrics. The exchange of about 30 min/day between School-related activities and Screen Time amounts to >180 hours extra exposure to School-related activities annually in the highest SES category relative to the lowest, equivalent to >6 weeks of school time per year.

General and central obesity prevalence in young adult: a study based on the Rafsanjan youth cohort study

Growing prevalence of obesity among youth would have adverse consequences and increased risk of developing chronic diseases at older ages. This study explored the prevalence of obesity and its association with relevant risk factors in the Rafsanjan youth cohort population. This cross-sectional study was done on 3006 individuals from the 15-35-year-old population included in the Rafsanjan youth cohort study. The data were extracted from the youth cohort databases, which had been collected through in-person interview and standard questionnaires. Definition of general obesity was considered as body mass index ≤ 30 and that of central obesity as waist to hip ratio (WHR) ≥ 0.9 for men and ≥ 0.85 for women. Multivariate stepwise proportional odds model and multivariable stepwise logistic regression models were done to explore the factors associated with general obesity and central obesity. The mean age was 25.78 ± 6.06 years with 56% (n = 1683) female. The prevalence of general obesity was 15.80% (95% CI 14.50-17.11) and central obesity was 28.41% (95% CI 26.80-30.02). The risk of general obesity increased with increasing age (OR = 1.053, P < 0.0001), being married (OR = 1.658, P < 0.0001), history of diabetes (OR = 1.609, P = 0.0185), history of hypertension (OR = 1.609, P < 0.0001), elevated triglyceride (OR = 1.007, P < 0.0001) and LDL (OR = 1.015, P < 0.0001), while decreasing with being employed (OR = 0.748, P = 0.0002) and elevated HDL (OR = 0.975, P < 0.0001). Prevalence of obesity was high in study population. Marital status, increasing age, and history of chronic diseases were associated with obesity. Preventing programs should be developed against obesity and for promoting healthy habits in young adult especially during education at schools.

20-year trends in multimorbidity by race/ethnicity among hospitalized patient populations in the United States

BACKGROUND

The challenges presented by multimorbidity continue to rise in the United States. Little is known about how the relative contribution of individual chronic conditions to multimorbidity has changed over time, and how this varies by race/ethnicity. The objective of this study was to describe trends in multimorbidity by race/ethnicity, as well as to determine the differential contribution of individual chronic conditions to multimorbidity in hospitalized populations over a 20-year period within the United States.

METHODS

This is a serial cross-sectional study using the Nationwide Inpatient Sample (NIS) from 1993 to 2012. We identified all hospitalized patients aged ≥ 18 years old with available data on race/ethnicity. Multimorbidity was defined as the presence of 3 or more conditions based on the Elixhauser comorbidity index. The relative change in the proportion of hospitalized patients with multimorbidity, overall and by race/ethnicity (Black, White, Hispanic, Asian/Pacific Islander, Native American) were tabulated and presented graphically. Population attributable fractions were estimated from modified Poisson regression models adjusted for sex, age, and insurance type. These fractions were used to describe the relative contribution of individual chronic conditions to multimorbidity over time and across racial/ethnic groups.

RESULTS

There were 123,613,970 hospitalizations captured within the NIS between 1993 and 2012. The prevalence of multimorbidity increased in all race/ethnic groups over the 20-year period, most notably among White, Black, and Native American populations (+ 29.4%, + 29.7%, and + 32.0%, respectively). In both 1993 and 2012, Black hospitalized patients had a higher prevalence of multimorbidity (25.1% and 54.8%, respectively) compared to all other race/ethnic groups. Native American populations exhibited the largest overall increase in multimorbidity (+ 32.0%). Furthermore, the contribution of metabolic diseases to multimorbidity increased, particularly among Hispanic patients who had the highest population attributable fraction values for diabetes without complications (15.0%), diabetes with complications (5.1%), and obesity (5.8%).

CONCLUSIONS

From 1993 to 2012, the secular increases in the prevalence of multimorbidity as well as changes in the differential contribution of individual chronic conditions has varied substantially by race/ethnicity. These findings further elucidate the racial/ethnic gaps prevalent in multimorbidity within the United States.

PRIOR PRESENTATIONS

Preliminary finding of this study were presented at the Society of General Internal Medicine (SGIM) Annual Conference, Washington, DC, April 21, 2017.

Impact of delaying high school start times on weight and related behaviors - the START study

In the US, few adolescents get adequate school night sleep, largely due to early school start times. In the START study we aimed to test the following hypothesis: That following the implementation of later high school start times students have lesser longitudinal increases in body mass index (BMI) and shift to more healthful weight-related behaviors relative to students attending schools that retain early start times. The study enrolled a cohort of students (n = 2426) in five high schools in the Twin Cities, MN metro. Heights and weights were measured objectively, and surveys were administered annually from 9th through 11th grades (2016-2018). All study schools started early (either 7:30 am or 7:45 am) at baseline (2016). At follow-up 1 (2017) and continuing through follow-up 2 (2018), two schools delayed their start times by 50-65 min, while three comparison schools started at 7:30 am throughout the observation period. Using a difference-in-differences natural experiment design, we estimated differences in changes in BMI and weight-related behaviors over time between policy change and comparison schools. Students' BMIs increased in parallel in both policy change and comparison schools over time. However relative to changes in comparison schools after the start time shift, students in policy change schools had a modestly more healthful profile of weight-related behaviors - for instance they had a relatively greater probability of eating breakfast, having supper with their family, getting more activity, eating fast food less frequently, and eating vegetables daily. Later start times could be a durable, population-wide strategy that promotes healthful weight behaviors.

American Indian Alaska Native (AIAN) adolescents and obesity: the influence of social determinants of health, mental health, and substance use

OBJECTIVE

To explore the prevalence of obesity among American Indian and Alaska Native (AIAN) adolescents aged 12-19 years in association with social determinants of health (SDOH), and mental health and substance use disorders.

METHODS

Guided by the World Health Organization's Social Determinants of Health Framework, we examined data from the Indian Health Service (IHS) Improving Health Care Delivery Data Project from Fiscal Year 2013, supplemented by county-level data from the U.S. Census and USDA. Our sample included 26,226 AIAN adolescents ages 12-19 years. We described obesity prevalence in relationship to SDOH and adolescents' mental health and substance use disorder status. We then fit a multivariable logit generalized linear mixed model to estimate the relationships after adjusting for other individual and county level characteristics.

RESULTS

We observed a prevalence of 32.5% for obesity, 13.8% for mental health disorders, and 5.5% for substance use disorders. Females had lower odds of obesity than males (OR = 0.76, p < 0.001), which decreased with age. Having Medicaid coverage (OR = 1.09, p < 0.01), residing in a county with lower education attainment (OR = 1.17, p < 0.05), and residing in a county with higher rates of poverty (OR = 1.51, p < 0.001) were each associated with higher odds of obesity. Residing in a county with high access to a grocery store (OR = 0.73, p < 0.001) and residing in a county with a higher proportion of AIANs (OR = 0.83, p < 0.01) were each associated with lower odds of obesity. Those with mental health disorders had higher odds of obesity (OR = 1.26, p < 0.001); substance use disorders were associated with decreased odds of obesity (OR = 0.73, p < 0.001).

CONCLUSIONS

Our findings inform future obesity prevention and treatment programs among AIAN youth; in particular, the need to consider mental health, substance use, and SDOH.

Trends in socioeconomic inequalities in obesity among Korean adolescents: the Korea Youth Risk Behavior Web-based Survey (KYRBS) 2006 to 2020

OBJECTIVES

This study investigated recent trends in the prevalence of obesity among Korean adolescents and explored socioeconomic disparities in obesity.

METHODS

This study used annual self-reported data on height, weight, and socioeconomic information from the Korea Youth Risk Behavior Web-based Survey from 2006 to 2020. With a 95.8% response rate, the sample consisted of 818,210 adolescents. Obesity prevalence was calculated according to 4 socioeconomic indicators (household income, father's educational attainment, mother's educational attainment, and urbanicity). Socioeconomic inequality was quantified using the relative index of inequality (RII).

RESULTS

The overall prevalence of obesity increased, doubling from 5.9% in 2006 to 11.7% in 2020. Boys and high school students showed a higher prevalence. The RIIs in household income and parental educational attainments significantly increased with time, indicating a growing inequality in obesity. Socioeconomic disadvantages had a greater influence on obesity among girls. The most recent RII values for boys were 1.25 for income, 1.79 for the father's education, and 1.45 for the mother's education, whereas the corresponding values for girls were 2.49, 3.17, and 2.62, respectively.

CONCLUSIONS

These findings highlight growing inequalities in adolescent obesity according to household income and parental educational attainments, especially for girls and middle schoolers.

Trends in school-neighbourhood inequalities and youth obesity: Repeated cross-sectional analyses of the public schools in the state of California

BACKGROUND

It is currently unknown whether the relationship between affluence of school neighbourhoods and prevalence of youth overweight/obesity is uniform across demographic subgroups and areal context in the United States.

METHODS

We examined association between school-neighbourhood income tertiles and school-level overweight/obesity (OVOB) prevalence, using data on body mass index of fifth, seventh, and nineth graders who attended public schools in California in 2001 and 2010 (n = 1 584 768), using multiple logistic regression models.

RESULTS

Overall, OVOB prevalence was higher in lower-income school neighbourhoods, with a steeper income-OVOB gradient for girls. Among boys, the gradient became steeper in 2010 than 2000. Among Asian and White girls, the negative gradients were steepest in rural areas. For African-American students in all areas and Latino boys in rural areas, there was less clear evidence of inverse income-OVOB gradients. Addition of fast-food restaurant availability to the models did not change the observed inverse school-neighbourhood income-obesity gradients.

CONCLUSIONS

The findings suggest the needs to investigate reasons for this variability with consideration to combinations of sociodemographic, economic, and environmental risk factors that may contribute to disparities in childhood obesity.

Socioeconomic disparities in health outcomes in the United States in the late 2010s: results from four national population-based studies

BACKGROUND

Despite the importance of monitoring health disparities by multiple socioeconomic categories, there have been no recent updates on the prevalence of general health indicators by socioeconomic categories. The present study aims to update the prevalence estimates of health indicators by education and income categories across three age groups (children, young and middle-aged adults, and older adults) in the late 2010s by using four nationally representative data sources. We also examine socioeconomic differences in health by race/ethnicity subgroups.

METHODS

Data were obtained from four nationally representative data sources from the U.S.: The National Health Interview Survey (2015-2018); the National Health and Nutrition Examination Survey, NHANES (2017-2020); the Behavioral Risk Factor Surveillance System (2016-2020); and the Health & Retirement Study (2016). Respondent-rated health and obesity were selected as the health indicators of interest. Socioeconomic factors included percentages of the federal poverty level and years of educational attainment. We conducted logistic regression analyses to calculate adjusted prevalence rates of respondent-rated (or measured, in the case of obesity in NHANES) poor health and obesity by income and education categories after controlling for sociodemographic characteristics. The complex sampling designs were accounted for in all analyses.

RESULTS

Prevalence rates across racial/ethnic groups and age groups demonstrated clear and consistent socioeconomic gradients in respondent-rated poor health, with the highest rates among those in the lowest income and education categories, and decreased rates as income and education levels increased. On the other hand, there were less evident socioeconomic differences in obesity rates across all data sources, racial/ethnic groups, and age groups.

CONCLUSIONS

Our results confirmed earlier, persistent evidence indicating socioeconomic disparities in respondent-rated poor health across all age and race/ethnicity groups by using four nationally representative datasets. In comparison to a decade earlier, socioeconomic disparities in poor health appeared to shrink while they emerged or increased for obesity. The results suggest an urgent need for action to alleviate pervasive health disparities by socioeconomic status. Further research is needed to investigate potentially modifiable factors underlying socioeconomic disparities in health, which may help design targeted health promotion programs.

The Longitudinal Effect of Area Socioeconomic Changes on Obesity: a Longitudinal Cohort Study in the USA from 2003 to 2017

Despite several dimensions of area socioeconomic status (SES), past literature has been dominated by the use of area socioeconomic position. We examined the longitudinal effect of three area SES measures (i.e., socioeconomic position, inequality, and segregation) on obesity. Using longitudinal data from the Fragile Families & Child Wellbeing Study (N = 1493), we estimated a linear mixed model to examine the effect of three time-varying area SES measures on time-varying measures of objectively measured body mass index z-score (BMIz) from ages 5 years to 15 years. Findings showed that BMIz increased steadily over time (B = 0.02, 95% CI = 0.02, 0.03). A significant interaction between time and area socioeconomic position indicates that children in areas with higher socioeconomic position had a smaller increase in BMIz than those in low socioeconomic areas (B =  - 0.02, 95% CI =  - 0.02, - 0.01). A non-linear relationship of area income inequality with BMIz such that BMIz was higher as area income inequality was greater, but the effect diminishes in magnitude with a higher level of area income inequality (linear term: B = 0.07; quadratic term: B =  - 0.03). Area income segregation was associated with greater BMIz (B = 0.08, 95% CI = 0.03, 0.12). No time interaction effect was found for area income inequality and segregation. Results highlight a need for community health policy efforts and evidence-based interventions to address childhood obesity issues in low-SES areas.

Adolescents' Nutrition: The Role of Health Literacy, Family and Socio-Demographic Variables

Adolescent obesity rates are increasing on an epidemic level and food intake is one of the most important causes of this condition. From an ecological perspective, food intake is, in turn, influenced by many factors that need to be considered. This study aims to evaluate the associations between socio-demographic factors (gender, family origin, socio-economic status, parent's education level), which consist of social stratifiers, health literacy and family context, as independent variables, and food intake (consumption of fruits, vegetables, soft drinks and sweets and breakfast frequency) and outcomes (Body Mass Index category), as dependent variables. Data were retrieved from 2145 students (13 and 15 years old) from the Lombardy region (Italy) who participated in the 2018 edition of Health Behaviour in School-Aged Children (HBSC). Six multiple binary logistic regression models were used in this study. Fruit, vegetable and soft drinks consumption models were related to all three-factor levels. Breakfast consumption frequency was associated with socio-demographic variables. BMI category was associated with socio-demographic and family variables. The results confirmed the existence of social inequalities, the importance of health literacy in predicting healthy behaviours and the relevance of the family context. The study confirms the importance of the ecological approach to understanding food intake and overweight/obesity status in adolescents.

Intergenerational Determinants of Weight Status Concordance and Discordance in Parent/Adolescent Dyads from the Family Life, Activity, Sun, Health, and Eating Study

Background: Studies have shown that obesity (OB) has strong intergenerational linkages and tends to cluster in families, but there is a dearth of research examining the socioecological factors predictive of weight status concordance and discordance among parents and adolescents. Methods: We ran a stepwise multinomial logistic regression to assess for sociodemographic, individual-, and family-level predictors of four dyadic weight status groups using data from 1516 parent/adolescent dyads from the National Cancer Institute's Family Life, Activity, Sun, Health, and Eating Study. We categorized parent/adolescent dyads into one of four groups based on their BMI: (1) Healthy Weight Concordance (i.e., both parent and adolescent in the normal weight range); (2) overweight (OW)/OB Concordance (i.e., both parent and adolescent with OW or OB); (3) Discordance-Parent OW/OB (i.e., parent with OW/OB and adolescent in the normal weight range); or (4) Discordance-Adolescent OW/OB (i.e., adolescent with OW/OB and parent in the normal weight range). Results: There were 475 parent/adolescent dyads (31.3%) in the Healthy Weight Concordance group, 351 (23.2%) in the OW/OB Concordance group, 604 (39.8%) in the Discordance-Parent OW/OB group, and 86 (5.7%) in the Discordance-Adolescent OW/OB group. Being from a low socioeconomic family, identifying as a minority, and identifying as a male parent were associated with an OW/OB dyadic BMI. Higher levels of adolescent and parent emotional eating were significantly associated with parent/adolescent dyads being in the OW/OB Concordance group. Parent emotional eating was also associated with Discordance-Parent OW/OB. In contrast, parents' and adolescents' physical activity self-efficacy was associated with a Healthy Weight dyadic BMI vs. OW/OB Concordance or Discordance-Parent OW/OB. Conclusions: Our findings highlight the strength of OW/OB concordance in families, especially among lower socioeconomic and ethnic minority families and the significance of emotional eating and physical activity self-efficacy in contributing to BMI patterns among parents and adolescents.

The Association Between Racial Discrimination, Race, and Social Class With Health Among US Children

OBJECTIVES

To assess the association between racial discrimination, race and ethnicity, and social class with child health and unmet health care needs among children in the United States (US).

METHODS

We used a nationally representative sample of children aged 0 to 17 from the 2018-2019 National Survey of Children's Health. Bivariate and multivariable logistic regression were used to test associations between measures of discrimination, social class (income, employment, and education), and race and ethnicity with overall child health and unmet health care needs controlling for covariates identified a priori.

RESULTS

Overall, 90.3% of children (n = 59,964) had excellent/very good overall health; 3.1% had unmet health care needs. Black, non-Hispanic children had 8.9 times the odds of having experienced racial discrimination compared to White, non-Hispanic children (95% confidence interval [CI], 7.0-11.4). Having special health care needs was significantly associated with greater odds of racial discrimination (OR 2.3; 95% CI, 1.9-2.8). In multivariable models, underrepresented race and ethnicity groups, lower household income level, and lower caregiver education were significantly associated with poorer overall child health. Conversely, experiencing discrimination was not significantly associated with excellent/good overall child health (adjusted odds ratios [aORs], 0.8; 95% CI, 0.6-1.1) Racial discrimination (aOR 2.7; 95% CI, 1.9-4.0) and lower household income (aOR 2.6; 95% CI, 1.8-3.5) were associated with significantly greater odds of unmet health care needs.

CONCLUSION

Race and ethnicity and low social class were significantly associated with worse overall health while racial discrimination and low-income were associated with more unmet health care needs. These findings underscore the importance of policy and health care system innovations that address the effects of racism and poverty on child health.

Socio-economic inequality in prevalence of type 2 diabetes among adults in north-west of Iran: a Blinder-Oaxaca decomposition

Background

The aim of this study was to estimate the socio-economic inequality in prevalence of type 2 diabetes among adults in north-west of Iran.

Methods

A cross-sectional study was conducted in Ardabil with data from the PERSIAN Cohort Study. Diabetes has been measured by combining self-reported and clinical records. Based on the socio-economic status score, households divided into five quintiles. A multiple logistic regression model was used to examine the association between having diabetes and independent variables and the Blinder-Oaxaca (BO) method was used to decompose the socioeconomic inequality, respectively.

Results

The Overall age-adjusted prevalence of diabetes among 20,419 Ardabil's adults was 14.3% (95% CI: 13.6 to 14.9). The prevalence of type 2 diabetes for the poorest and richest groups was 16.07% and 7.60%, the gap between the poorest and richest groups was 8.47%. The prevalence type 2 diabetes was significantly increasing with increasing in age (OR = 4.05, 95% CI = 3.27-5.02), BMI (OR: 3.10, 95%CI = 1.25-7.68), blood pressure (OR: 2.61, 95% CI = 2.37-2.88), and decreases with higher education level (OR = 0.78, 95% CI = 0.63-0.97). The richest-economic group has lower prevalence of diabetes (OR = 0.73, 95% CI = 0.60-0.88). The decomposition showed that most important factors affecting the difference between poorest and richest group in the prevalence of type 2 diabetes were age (86.1%), years of schooling (46.9%) and having chronic diseases such as hypertension (26.9%).

Conclusions

The present study showed that the prevalence of type 2 diabetes was significantly higher among the elderly, women, uneducated, obese, and poor populations. Policies that address people poverty such as increasing job opportunities, increasing the minimum income etc. could reduce diabetes risk for poor people.

How do underserved adolescents want to learn about health? An exploration of health concerns, preferences, and resources utilized

Understanding health concerns and preferences of underserved adolescents has potential to shape health interventions. The objective of this study is to better understand these adolescents' current and preferred health resources, prior to the COVID-19 pandemic. High school students from underrepresented communities in six US cities completed a pre-pipeline program survey in which they reported level of personal concern, as well as current and preferred sources of information about 1) depression/anxiety, 2) nutrition, 3) sexual health, 4) trauma/violence, and 5) alcohol/drugs. 259 participants completed the survey (avg. age 15.7, 79% female, 58.3% Hispanic, and 36.0% Black). At least a moderate level of concern and some degree of prior knowledge (>3 on 5-point Likert scale) were reported across all health topics. Participants reported the lowest level of knowledge on the topic of trauma/violence. Students reported family (24%) and teachers (21%) as the most utilized current sources of information. Students reported doctors as the preferred source of information across all health topics. The difference between students' current source of information and preferred source of information was significant across four topics: depression/anxiety, sexual health, trauma, and alcohol/drugs (p <0.01). These results underscore the important role of physicians as educators and suggest a need for improved education on trauma/violence. These results also establish a pre-COVID-19 baseline for adolescent health concerns, current, and preference health resources. This baseline understanding may shift because of pandemic changes.

Income Disparities in Obesity Trends among U.S. Adults: An Analysis of the 2011-2014 California Health Interview Survey

The aim of this study was to examine income disparities in obesity trends among California adults. Data were obtained from the 2011−2014 California Health Interview Survey (n = 83,175 adults). Obesity for adults was defined as a body mass index of 30 kg/m2 or above. Family income was categorized as below 100%, 100% to 299%, or 300% and above of the federal poverty level (FPL). Weighted multiple logistic regression analyses were used to examine the association between family income and obesity across survey years after controlling for age, sex, race/ethnicity, smoking status, marital status, education, physical activity, and healthy diet. Obesity prevalence among California adults increased slightly from 25.1% in 2011 to 27.0% in 2014. Compared to 300% FPL or above, <100% FPL and 100−299% FPL were associated with increased odds of obesity, respectively (OR = 1.35, 95% CI = 1.22−1.50, for 100−299% FPL; OR = 1.18, 95% CI = 1.10−1.27, for 300% FPL or above). Each year, lower FPL was associated with higher odds of obesity, except for the year 2014. An inverse association between obesity and family income in each survey year was observed, with the magnitude of the income disparity decreasing from 2011 to 2014. The findings of this study show that family income was negatively associated with obesity among adults in California from 2011−2014, and the magnitude of the income disparity in obesity prevalence decreased over this period. Future studies need to examine potential risk factors associated with the decreasing trend.

Using structural equation modeling to understand family and psychological factors of childhood obesity: from socioeconomic disadvantage to loss of control eating

PURPOSE

Current study aimed to empirically test the Hemmingsson's theoretical model of childhood obesity which emphasizing the importance of family environment and the emotional distress of parents as influential variables in the emotional distress of the child and subsequent weight gain. This study also tested the hypothesis that the emotional distress of the child triggers a weight gain-inducing behavior (loss of control eating) to suppress negative emotions.

METHODS

Families of 220 Spanish children participated in the study (28.2% normal, 35.1% overweight and 32.2% obesity), aged between 8 and 12. The evaluation included a clinical interview and a battery of questionnaires.

RESULTS

Structural equation models were computed according to the steps proposed by theoretical model. Fit indices were acceptable suggesting that the data adequately fit the hypothesized model. Path coefficients in the final model were statistically significant showing a relationship between socioeconomic status, the emotional distress of parents, family environment, the emotional distress of children, loss of control eating and child's BMI Z-score.

CONCLUSION

Considering this relation between emotional distress and child weight status, childhood obesity intervention programs may benefit from targeting family environment and the potential role that food is playing in the regulation of children's distress.

LEVEL OF EVIDENCE

Level III: Cohort analytic study.

Insights into the challenges and facilitators to physical activity among brooklyn teens enroled in a weight management programme

Purpose

A qualitative study was carried out to explore obese adolescents' understanding of physical activity, perceptions of the ideal body type and to identify facilitators of and barriers to physical activity.

Methods

Twenty‐two adolescents 12–18 years of age and 14 of their parents were recruited from an obesity intervention programme in Brooklyn, New York, from June to November 2017. Data were collected using focus groups and individual semi‐structured interviews, followed by interpretative phenomenological analysis of the transcripts.

Results

The adolescents wanted to ‘lose some weight’, but not to be ‘thin’ or ‘look hungry’. Most females desired a ‘slim‐thick’ figure, which was ‘a flat stomach with big thighs, and curvy’. Fun and support from parents, peers and programme staff facilitated achieving their physical activity goals. Barriers included low self‐efficacy, inactive families, fear of neighbourhood gangs and crime and perceptions that the parks were small and overcrowded, with limited physical activity options for adolescents.

Conclusion

These findings highlight the need to consider local norms concerning body image when designing obesity interventions. To effectively reduce childhood obesity in New York City, policy should prioritize the promotion of public safety, improvement of neighbourhood parks and increase options for physical activity.

Patient or Public Contribution

The voices and narratives of patients and their families informed this study.

The effects of experimentally manipulated social status and subjective social status on physical activity among Hispanic adolescents: An RCT

BACKGROUND

Low objective socioeconomic status (SES) and subjective social status (SSS), one's perceived social rank, are associated with obesity. This association may be due, in part, to social status-related differences in energy expenditure. Experimental studies are needed to assess the extent to which SES and SSS relate to energy expenditure.

OBJECTIVE

Assess the effects of experimentally manipulated social status and SSS on moderate-to-vigorous physical activity (MVPA) and sedentary behaviour.

METHODS

One hundred thirty-three Hispanic adolescents aged 15-21 were randomized to a high or low social status position, facilitated through a rigged game of Monopoly™. SSS was assessed with MacArthur Scales. Post-manipulation 24-h MVPA and sedentary behaviour were assessed via accelerometry. Analyses were conducted with general linear regression models.

RESULTS

Experimentally manipulated social status did not significantly affect the total time spent in MVPA or sedentary behaviour; however, identifying as low SSS was significantly associated with less MVPA (p = 0.0060; 18.76 min less).

CONCLUSIONS

Tewnty-four-hour MVPA and sedentary behaviour are not affected by an acute experimental manipulation of social status. However, low SSS, independent of SES, was associated with clinically significant differences in MVPA. SSS may be a better predictor of MVPA than SES among Hispanic adolescents, potentially influencing obesity, and other health-related outcomes.

Potentially modifiable mediators for socioeconomic disparities in childhood obesity in the United States

OBJECTIVE

The aim of this study was to examine modifiable mediators for socioeconomic disparities in childhood obesity in the United States.

METHODS

This study used the data of 1,211 mother-child dyads from a US national birth cohort from pregnancy to 6 years post partum. Socioeconomic status was indicated by maternal education (college graduate vs. less) and family income (>185% vs. ≤185% of the poverty line). Single- and multiple-factor mediation analyses were conducted for socioeconomic disparities in childhood obesity at 6 years, adjusting for demographics.

RESULTS

The confounder-adjusted relative risk of childhood obesity was 1.79 for low maternal education and 1.42 for low family income. Low-maternal-education-related obesity was individually mediated by maternal preconception BMI (percentage of indirect effect, 8.8%), smoking during pregnancy (7.0%), infant weight gain (14.4%), child sleep duration (11.4%), and TV viewing during weekdays at 6 years (4.9%). Low-family-income-related obesity was mediated by maternal preconception BMI (18.5%), smoking during pregnancy (6.3%), child sleep duration (12.8%), and the home learning environment at 6 years (26.2%). In multiple-mediator analysis, significant mediators together mediated 54.0% of maternal-education-related or 39.4% of family-income-related disparities.

CONCLUSIONS

Maternal preconception BMI, smoking during pregnancy, infant weight gain, child sleep, TV viewing, and the home learning environment substantially mediated socioeconomic disparities in childhood obesity in the United States.

Trends in Health in Midlife and Late Life

Gains in life expectancy have recently slowed and mortality inequalities have increased. This paper examines whether trends in health observed at ages 55 to 89 mirror those trends in mortality, which may serve as an early indicator for the future evolution of mortality. We found that many health outcomes have worsened from 1992 to 2016, especially at ages below 70, and that differentials in health between low and high education groups have increased among the more recent cohorts. Overall the findings cast a pessimistic light on the future evolution of mortality rates and mortality inequalities.

Widening Socioeconomic Disparities in Pain and Physical Function Among Americans Are Linked with Growing Obesity

Objectives: We investigate whether obesity accounts for widening socioeconomic disparities in pain. Methods: Based on nationally representative samples of Americans aged 25-74 in 1995-1996 and 2011-2014, we use logistic regression to model period change in headaches, backaches, and joint aches as well as physical limitations and to determine whether those changes vary by a multidimensional measure of socioeconomic status. Results: Prevalence of backaches, joint aches, physical limitations, and obesity increased between the mid-1990s and the early 2010s, particularly among more disadvantaged Americans. Socioeconomic disparities in frequent backaches, frequent joint pain, and physical limitations more than doubled over this period. We estimate that obesity and health conditions may account for nearly a quarter of the widening disparity in frequent backaches and about half of the widening disparity in frequent joint pain and physical limitations. Discussion: Widening disparities in backaches, joint pain, and physical limitations have coincided with growing obesity.

The Role of Childhood Asthma in Obesity Development: A Nationwide US Multicohort Study

RATIONALE

Asthma and obesity often co-occur. It has been hypothesized that asthma may contribute to childhood obesity onset.

OBJECTIVES

To determine if childhood asthma is associated with incident obesity and examine the role of asthma medication in this association.

METHODS

We studied 8,716 children between ages 6 and 18.5 years who were nonobese at study entry participating in 18 US cohorts of the Environmental influences on Child Health Outcomes program (among 7,299 children with complete covariate data mean [SD] study entry age = 7.2 [1.6] years and follow up = 5.3 [3.1] years).

MEASUREMENTS AND MAIN RESULTS

We defined asthma based on caregiver report of provider diagnosis. Incident obesity was defined as the first documented body mass index ≥95th percentile for age and sex following asthma status ascertainment. Over the study period, 26% of children had an asthma diagnosis and 11% developed obesity. Cox proportional hazards models with sex-specific baseline hazards were fitted to assess the association of asthma diagnosis with obesity incidence. Children with asthma had a 23% (95% confidence intervals [CI] = 4, 44) higher risk for subsequently developing obesity compared with those without asthma. A novel mediation analysis was also conducted to decompose the total asthma effect on obesity into pathways mediated and not mediated by asthma medication use. Use of asthma medication attenuated the total estimated effect of asthma on obesity by 64% (excess hazard ratios = 0.64; 95% CI = -1.05, -0.23).

CONCLUSIONS

This nationwide study supports the hypothesis that childhood asthma is associated with later risk of obesity. Asthma medication may reduce this association and merits further investigation as a potential strategy for obesity prevention among children with asthma.

Text Messages to Curb Sugar-Sweetened Beverage Consumption among Pregnant Women and Mothers: A Mobile Health Randomized Controlled Trial

Racial, ethnic, and socioeconomic disparities in childhood obesity in the United States (U.S.) originate in early life. Maternal sugar-sweetened beverage (SSB) consumption is an early life risk factor for later offspring obesity. The goal of this study was to test the effects of policy-relevant messages delivered by text messages mobile devices (mHealth) on maternal SSB consumption. In this three-arm 1-month randomized controlled trial (RCT), pregnant women or mothers of infants in predominantly Hispanic/Latino New York City neighborhoods were randomized to receive one of three text message sets: graphic beverage health warning labels, beverage sugar content information, or attention control. The main outcome was change in maternal self-reporting of average daily SSB consumption from baseline to one month. Among 262 participants, maternal SSB consumption declined over the 1-month period in all three arms. No intervention effect was detected in primary analyses. In sensitivity analyses accounting for outliers, graphic health warning labels reduced maternal SSB consumption by 28 kcal daily (95% CI: −56, −1). In this mHealth RCT among pregnant women and mothers of infants, graphic health warning labels and beverage sugar content information did not reduce maternal SSB consumption.

Mindfulness-based intervention in adolescents at risk for excess weight gain: 1.5-year follow-up of pilot randomized controlled trial

BACKGROUND

Mindfulness-based intervention (MBI) may offer a novel means of preventing excess weight gain in adolescents, theoretically by decreasing stress-eating through altering executive functioning (EF) and food-reward sensitivity.

METHODS

N = 54 12-17y girls and boys at-risk for excess weight gain (i.e., BMI ≥70th percentile or two biological parents with reported obesity [BMI ≥30 kg/m2]) participated in a 1.5-year follow-up of a pilot randomized controlled trial comparing 6-week/6-session MBI (n = 29) and a health education (HE) control (n = 25). Laboratory stress-eating, food-reward sensitivity, EF, perceived stress, and BMI/adiposity were re-assessed at 1.5-years with validated measures. Changes from baseline to 1.5-year follow-up were explored with ANCOVA, accounting for the respective baseline outcome, age, and sex.

RESULTS

Compared to MBI (M = -21, SE = 59), HE had greater increases in stress-eating from baseline to 1.5-years (M = 194, SE = 63, Cohen's d = 0.59, p = .01). There were no other between-condition differences.

DISCUSSION

MBI may prevent worsening stress-eating for adolescents at-risk for excess weight gain. The potential for MBI as an intervention for stress-eating and ultimately, weight stabilization warrants testing in an adequately-powered trial.

Forecasting mortality inequalities in the U.S. based on trends in midlife health

Recent literature has documented a widening gap in mortality between older individuals of high versus low socioeconomic status (SES) in the U.S. This paper investigates whether this trend will continue. We analyze the health status of successive cohorts of 54-60-year-old U.S. individuals born between 1934 and 1959 and use a rich set of health indicators to forecast life expectancies. The detailed health measures come from the longitudinal Health and Retirement Study. We find that many health indicators have worsened recently. For example, rates of obesity, diabetes, and self-reported levels of pain sharply increased between 1992 and 2016. Directly relevant for mortality, recent cohorts report lower subjective survival probabilities. Using Social Security wealth as an SES indicator, we find strong evidence for increasing health inequalities. We predict overall life expectancy to increase further; but the increase will be concentrated among higher SES individuals and mortality inequality will continue to increase.

Does Obesity Influence Body Mass Index Changes in Nulliparous Adolescent Users of Long-Acting Reversible Contraceptives?

OBJECTIVES

To compare body mass index (BMI) changes in adolescents using long-acting reversible contraceptives (LARCs), specifically, the etonogestrel subdermal implant (ENG-implant), levonorgestrel intrauterine device (LNG-IUD), and copper IUD (Cu-IUD), by initial BMI category from the time of LARC insertion to within 6-18 months after insertion.

DESIGN

This was a single-center retrospective cohort study.

SETTING AND PARTICIPANTS

We reviewed electronic health records from our large health system to identify and follow a cohort of 196 adolescents aged 14-19 years with LARCs inserted from 2010 to 2016. We excluded adolescents with conditions or medications affecting weight, including childbirth.

MAIN OUTCOME MEASURE

BMI change from LARC insertion to first BMI documented after 6-18 months RESULTS: Mean age was 17.2 ± 0.2 years; 59% of the cohort was Hispanic and 29% Black. Mean BMI was 26.4 ± 7.1 kg/m². Of the total cohort of adolescents, 51% were underweight/normal, 24% overweight, and 25% obese. Mean time to first BMI documented after LARC insertion was 10.1 ± 3.2 months. Mean BMI change for the total cohort was +0.73 ± 1.8 kg/m², indicating weight gain. Mean BMI change for the ENG-implant + LNG-IUD users (n = 127) was larger than for Cu-IUD users (n = 69) (+0.92 ± 1.9 kg/m² vs +0.37 ± 1.6 kg/m², respectively, P < .05). Two-way analysis of variance showed that both initial BMI category (P = .001) and type of LARC (P = .011) had an independent significant main effect on BMI change. A significant interaction effect (P = .017) showed that obese adolescents had a larger increase in BMI when they were using a progestin-releasing LARC, either ENG-implant or LNG-IUD, as compared to a Cu-IUD (P < .05).

CONCLUSION

Adolescents using progestin-releasing LARCs had a larger increase in BMI within 6-18 months after device insertion than those using Cu-IUDs. The disproportionate increase in BMI with progestin-releasing LARCs was primarily contributed by obese users.

A digitally enhanced home-based physical activity intervention for high-risk middle school youth during COVID-19

COVID-19 significantly impacted physical activity among high-risk youth. Camp from Home, a digitally enhanced home-based intervention, was developed to address physical activity disparities among middle school youth during COVID-19. Camp from Home enrolled 62 youth in 54 families from five schools in Philadelphia during the summer of 2020. The 6-week intervention comprised of (1) three home deliveries of "activity kits" including exercise equipment and activity booklets, (2) asynchronous sport and exercise videos posted to a private YouTube channel, and (3) supportive text-messages from health coaches. YouTube analytics and self-report surveys completed by parents and youth at baseline and at the end of programming were used to assess engagement, acceptability, and preliminary efficacy. Youth participants were 12.4 (1.2) years, 38.7% female and 90.3% Black/African American. At follow-up, 41 parents (75.9%) and 34 youth (54.8%) completed measures. Youth self-reported increases in self-efficacy (ΔM(sd) = 0.4(1.0), p = .03) and physical activity (ΔM(sd) = 4.2(7.9), p = .004), despite suboptimal engagement in digital program components. Overall, participants highly rated the program. Activity kits and text-messages from health coaches were rated as most helpful. Most parents (95.1%) and youth (83.8%) expressed interested in participating again in the future. A 6-week digitally enhanced, home-based physical activity intervention was acceptable and feasible among parents and youth during the summer of 2020, with youth reporting improvements in self-efficacy and physical activity. Summer programs are critical for reducing disparities in physical activity and hold potential for addressing key barriers for high-risk youth even outside the context of COVID-19.

Development and Preliminary Feasibility of iByte4Health: A Mobile Health (mHealth) Pediatric Obesity Prevention Intervention to Engage Parents with Low-Income of Children 2-9 Years

This research describes the development and preliminary feasibility of iByte4Health, a mobile health (mHealth) obesity prevention intervention designed for parents with a low-income of children 2–9 years of age. Study 1 (n = 36) presents findings from formative work used to develop the program. Study 2 (n = 23) presents a 2-week proof-of-concept feasibility testing of iByte4Health, including participant acceptability, utilization, and engagement. Based on Study 1, iByte4Health was designed as a text-messaging program, targeting barriers and challenges identified by parents of young children for six key obesity prevention behaviors: (1) snacking; (2) physical activity; (3) sleep; (4) sugary drinks; (5) fruit and vegetable intake; and (6) healthy cooking at home. In Study 2, participants demonstrated high program retention (95.7% at follow-up) and acceptability (90.9% reported liking or loving the program). Users were engaged with the program; 87.0% responded to at least one self-monitoring text message; 90.9% found the videos and linked content to be helpful or extremely helpful; 86.4% found text messages helpful or extremely helpful. iByte4Health is a community-informed, evidenced-based program that holds promise for obesity prevention efforts, especially for those families at the increased risk of obesity and related disparities. Future work is warranted to test the efficacy of the program.

National-Level Disparities in Internet Access Among Low-Income and Black and Hispanic Youth: Current Population Survey

Background

Internet access is increasingly critical for adolescents with regard to obtaining health information and resources, participating in web-based health promotion, and communicating with health practitioners. However, past work demonstrates that access is not uniform among youth in the United States, with lower access found among groups with higher health-related needs. Population-level data yield important insights about access and internet use in the United States.

Objective

The aim of this study is to examine internet access and mode of access by social class and race and ethnicity among youth (aged 14-17 years) in the United States.

Methods

Using the Current Population Survey, we examined internet access, cell phone or smartphone access, and modes of connecting to the internet for adolescents in 2015 (unweighted N=6950; expanded weights N=17,103,547) and 2017 (unweighted N=6761; expanded weights N=17,379,728).

Results

Internet access increased from 2015 to 2017, but socioeconomic status (SES) and racial and ethnic disparities remained. In 2017, the greatest disparities were found for youth in low-income households (no home access=23%) and for Black youth (no home access=18%) and Hispanic youth (no home access=14%). Low-income Black and Hispanic youth were the most likely to lack home internet access (no home access, low SES Black youth=29%; low SES Hispanic youth=21%). The mode of access (eg, from home and smartphone) and smartphone-only analyses also revealed disparities.

Conclusions

Without internet access, web-based dissemination of information, health promotion, and health care will not reach a significant segment of youth. Currently, SES and racial and ethnic disparities in access prolong health inequalities. Moreover, the economic impact of COVID-19 on Black, Hispanic, and low-income communities may lead to losses in internet access for youth that will further exacerbate disparities.

Parental experiences of adopting healthy lifestyles for children with disabilities living with overweight and obesity

BACKGROUND

Children with disabilities present with high obesity rates.

OBJECTIVE

This study explored the parental experience of adopting healthy lifestyle choices, for children with disabilities, who received dietetic weight management advice.

METHODS

Semi-structured qualitative interviews were carried out with eight parents/carers in their own homes or healthcare setting in an inner London locality, or by telephone. Data was analyzed using an interpretative phenomenological analysis (IPA) approach.

RESULTS

Five superordinate themes emerged: 1. Strategies to promote healthy lifestyles: encouraging physical activity, limiting access to food and taking a gradual approach to making lifestyle changes. 2. Challenges to adopting healthy lifestyles: selective eating patterns, the high cost of healthy foods and parental/carer lack of time. 3. The role of healthcare professionals (HCPs): revealed that not all parents/carers received advice or support, prior to dietetic referral, when managing their child's weight. Feeling reassured by HCPs was valued. Parents/carers reported a positive experience of seeing the dietitian, as they appreciated receiving practical and individualized advice. 4. Support needs: family support and support from families with children with disabilities was explored. 5. Parent/carer wellbeing: such as stress was found to have a detrimental impact on parents making healthy lifestyle changes.

CONCLUSIONS

Adopting a healthy lifestyle involved a variety of strategies and challenges, some of which are specific to this population group and should be considered by HCPs, when having weight-related discussions and offering advice. Parental/carer support needs and wellbeing should also be taken into consideration when planning weight management services for this population group.

Community-based culinary and nutrition education intervention promotes fruit and vegetable consumption

OBJECTIVE

The main objective of this study was to evaluate the impact of the Market to MyPlate (M2MP) program on fruit and vegetable consumption and cooking behaviours. Secondary objectives were to examine factors that affected participant retention and program completion, and analyse program feedback provided by participants.

DESIGN

This study conducted a mixed methods evaluation embedded within a cluster randomised controlled trial of the M2MP intervention. Adult participants completed a pre- and post-program survey reporting on their fruit and vegetable consumption and cooking behaviours. A subsample participated in structured interviews, providing feedback about M2MP and the impact of the program.

SETTING

Seven weekly classes took place in community centres and extension offices in central Illinois.

PARTICIPANTS

120 adults and their families participated. Class cohorts were randomly assigned to one of three treatment groups: (1) nutrition education and cooking classes with produce allocations (PAE, n 39); (2) nutrition education and cooking classes only (EO, n 36) or (3) control group (n 45).

RESULTS

Compared to control, PAE participants reported larger increases from pre- to post-intervention in fruit (P = 0·001) and vegetable consumption (P = 0·002), with no differences in cooking frequency. Interview analyses identified key themes in behaviour changes due to M2MP, including reported increases in dietary variety, cooking self-efficacy and children's participation in cooking.

CONCLUSIONS

PAE participants who received an intervention that directly increased their access to fresh produce (via produce allocations) increased their reported fruit and vegetable consumption. Though participants' cooking frequency did not change, interviewees reported increased variety, cooking confidence and family participation in cooking.

Physical activity strategies in low-resource elementary schools: Why and how are they prioritized?

Most US children do not achieve the recommended daily 60 minutes of moderate to vigorous physical activity (PA). Schools are ideal settings to promote PA given their reach to large child populations, including students with less resources and limited access to PA opportunities. Although limited in numbers, schools that offer enough PA strategies can provide insights to increase PA in these settings. However, few studies have examined why and how these schools successfully prioritize PA strategies, particularly schools serving socioeconomically disadvantaged student populations. This qualitative study of low-resource, PA-supportive schools was conducted during 2017-2018 to obtain in-depth information about why and how schools make decisions to prioritize and implement PA strategies. Forty-two study participants in 17 states plus Washington DC were recruited. Content analysis revealed the following themes: (1) Schools prioritize PA because it helps advance learning and health goals; (2) Policies and standards for PA/PE reinforce the importance of PA; (3) A culture of learning and health advances decisions to offer PA; (4) Advocates play a key role in generating support to integrate PA; (5) Stakeholder buy-in enables decisions to offer PA opportunities; (6) Collaboration focused on PA specifically can facilitate decisions to increase PA strategies; and (7) Funding and resources drive decisions to put PA strategies into practice. The study findings offer insights that may be useful in efforts to increase access to PA opportunities in low-resource elementary schools.

Diet quality, excess body weight and cardiometabolic risk factors in adolescents living in São Paulo, Brazil and in the USA: differences and similarities

OBJECTIVE

To compare diet quality and its association with excess body weight (EBW: overweight/obesity), central adiposity (CA) and CVD risk factors (CVDR) among adolescents from Brazil and USA.

DESIGN

Data from two cross-sectional surveys: Health Survey of São Paulo (ISA-Nutrition) and Hispanic Community Health Study/Study of Latino Youth (SOL-Youth). Dietary intake was assessed from 24-h recalls, and diet quality using the Alternate Healthy Eating Index-2010 (AHEI) developed in the USA and the Revised Brazilian Healthy Eating Index (BHEI-R). CVDR was defined as ≥3 of: obesity, elevated blood pressure, dyslipidaemia, high plasma glucose and insulin resistance. Adjusted OR for EBW, CA and CVDR by diet quality were tested using logistic regression.

SETTING

São Paulo, Brazil; and Chicago, IL; Miami, FL; Bronx, NY; San Diego, CA.

PARTICIPANTS

Adolescents (12-16 years) living in São Paulo (n 189) and USA (n 787).

RESULTS

ISA-Nutrition individuals with EBW (v. without) had marginally lower (unhealthier) scores for whole grains using BHEI-R and sugary beverages using AHEI. SOL-Youth individuals with EBW had lower scores of nuts/legumes using AHEI, and Na using BHEI-R, but higher scores of whole grains and dairy using BHEI-R. In ISA-Nutrition, BHEI-R was inversely associated with EBW (OR = 0·87; 95 % CI 0·80, 0·95) and CVDR (OR = 0·89; 95 % CI 0·80, 0·98). In SOL-Youth, AHEI was inversely associated with EBW (OR = 0·93; 95 % CI 0·87, 0·99).

CONCLUSIONS

Dietary improvements should be made by adolescents in both USA and Brazil. Healthier diet quality as measured with the country-specific index was associated with lower odds of EBW in Brazilian and USA-Hispanic/Latino adolescents, and with lower CVDR in Brazilian adolescents.

Addressing infant mortality through positive youth development opportunities for adolescent girls

Adolescent girls experience risks prior to pregnancy and giving birth that influence their overall health, and development, as well as community rates of infant mortality. Supporting adolescent girls through positive youth development (PYD) opportunities offers a potential long-term strategy to preventing infant mortality and improving maternal health outcomes. The current study sought to assess state-wide needs, resources and opportunities related to PYD supports for adolescent girls, especially among those most at risk for early pregnancy. A strengths, weaknesses, opportunities and threats (SWOT) analysis guided nine community forums in counties with the highest rates of infant mortality in one large Midwestern state. In total, 368 stakeholders attended the forums and provided insights related to the context of PYD for adolescent girls. Researchers also conducted three focus group with 19 parents/guardians and three focus groups with 25 adolescent girls aged 11-14 to validate the findings from the SWOT analysis. Content analysis was utilised to synthesise the qualitative results. Strengths and opportunities related to PYD for adolescent girls included access to afterschool programming and access to health and mental health services. Weaknesses brought awareness to more systemic problems as all nine counties reported a lack of communication and coordination among youth programs and a need for greater collaboration among youth agencies. Threats included challenges associated with technology and social media, unsafe neighbourhood conditions, and issues of racism, sexism, poverty and discrimination. Findings support the need for a continued focus and priority on improving access, services and supports for adolescent girls to prevent infant mortality and improve their health and well-being. Local, state and national leaders can use the results of this study to promote additional strategies for addressing infant mortality through PYD for adolescent girls.

Addressing psychosocial health in the treatment and care of adolescents with obesity

Obesity affects 158 million youth worldwide and is associated with psychosocial comorbidity. This review describes weight management options utilized by adolescents, including both self-directed weight loss and medically supervised obesity treatment interventions, and associated psychosocial impacts. A majority of adolescents with obesity attempt to manage weight on their own, primarily through attempting weight loss, sometimes with supplement use. Approaches such as these are associated with a degree of risk, disordered eating behaviors, and further weight gain. In contrast, medically supervised multicomponent interventions are associated with improved psychosocial health, including quality of life, self-esteem, and body image, and reduced symptoms of depression, anxiety, and eating disorders. Few studies utilizing antiobesity pharmacotherapy have reported psychosocial outcomes, and trials of bariatric surgery show some early improvements with a need for sustained psychological support following surgery. Greater access to medically supervised treatment services is required to facilitate obesity care for adolescents. Early data on psychosocial health and obesity treatment offer promising outcomes; however, larger randomized controlled trials and longer-term data are needed. Future research should include both physiological and psychosocial outcomes to assess impact of interventions on the holistic health of adolescents with obesity.

Sociodemographic factors and health-related, neuropsychological, and psychosocial functioning in youth with spina bifida

Objective: Past research suggests that certain sociodemographic factors may put youth with spina bifida (SB) at risk for poor outcomes. The aims of this study were to examine (a) associations between ten sociodemographic factors and health-related, neuropsychological, and psychosocial functioning among youth with SB,(b) cumulative sociodemographic risk as a predictor of youth outcomes as moderated by age, and (c) SB-related family stress as a mediator of longitudinal associations between cumulative sociodemographic risk and youth outcomes. Method: Participants were youth with SB (N = 140 at Time 1; Mage at Time 1 = 11.43, 53.6% female) recruited as part of a larger, longitudinal study. The study included questionnaire (parent-, teacher-, and youth-report), neuropsychological testing, and medical chart data across three time points, spaced 2 years apart. Results: A subset of the sociodemographic factors and their cumulative risk were associated with study outcomes. Specifically, youth characterized by sociodemographic risk had greater pain and lower academic achievement, but also fewer urinary tract infections and fewer attention and executive function problems. Age did not moderate the association between cumulative risk and outcomes. Cumulative risk predicted lower SB-related family stress, which, in turn, predicted several outcomes. Conclusions: Examining a range of sociodemographic factors is warranted. Sociodemographic risk is linked to poorer outcomes for some risk indicators but similar or better outcomes for others. Results have implications for delivering evidence-based, diversity-sensitive clinical care to youth with SB. (PsycInfo Database Record (c) 2021 APA, all rights reserved).

Socioeconomic Disparities in Foods/Beverages and Nutrients Consumed by U.S. Adolescents When Snacking: National Health and Nutrition Examination Survey 2005-2018

Snacking contributes a significant portion of adolescents’ daily energy intake and is associated with poor overall diet and increased body mass index. Adolescents from low socioeconomic status (SES) households have poorer snacking behaviors than their higher-SES counterparts. However, it is unclear if the types of food/beverages and nutrients consumed during snacking differ by SES among adolescents. Therefore, this study examines SES disparities in the aforementioned snacking characteristics by analyzing the data of 7132 adolescents (12–19 years) from the National Health and Nutrition Examination Survey 2005–2018. Results reveal that adolescents from low-income households (poverty-to-income ratio (PIR) ≤ 1.3) have lower odds of consuming the food/beverage categories “Milk and Dairy” (aOR: 0.74; 95% CI: 0.58-0.95; p = 0.007) and “Fruits” (aOR: 0.62, 95% CI: 0.50–0.78; p = 0.001) as snacks and higher odds of consuming “Beverages” (aOR: 1.45; 95% CI: 1.19-1.76; p = 0.001) compared to those from high-income households (PIR > 3.5). Additionally, adolescents from low- and middle-income (PIR > 1.3–3.5) households consume more added sugar (7.98 and 7.78 g vs. 6.66 g; p = 0.012, p = 0.026) and less fiber (0.78 and 0.77 g vs. 0.84 g; p = 0.044, p = 0.019) from snacks compared to their high-income counterparts. Future research is necessary to understand factors that influence snacking among adolescents, and interventions are needed, especially for adolescents from low-SES communities.

Area Deprivation Index and Cardiac Readmissions: Evaluating Risk-Prediction in an Electronic Health Record

Background Assessment of the social determinants of post-hospital cardiac care is needed. We examined the association and predictive ability of neighborhood-level determinants (area deprivation index, ADI), readmission risk, and mortality for heart failure, myocardial ischemia, and atrial fibrillation. Methods and Results Using a retrospective (January 1, 2011-December 31, 2018) analysis of a large healthcare system, we assess the predictive ability of ADI on 30-day and 1-year readmission and mortality following hospitalization. Cox proportional hazards models analyzed time-to-event. Log rank analyses determined survival. C-statistic and net reclassification index determined the model's discriminative power. Covariates included age, sex, race, comorbidity, number of medications, length of stay, and insurance. The cohort (n=27 694) had a median follow-up of 46.5 months. There were 14 469 (52.2%) men and 25 219 White (91.1%) patients. Patients in the highest ADI quintile (versus lowest) were more likely to be admitted within 1 year of index heart failure admission (hazard ratio [HR], 1.25; 95% CI, 1.03‒1.51). Patients with myocardial ischemia in the highest ADI quintile were twice as likely to be readmitted at 1 year (HR, 2.04; 95% CI, 1.44‒2.91]). Patients with atrial fibrillation living in areas with highest ADI were less likely to be admitted within 1 year (HR, 0.79; 95% CI, 0.65‒0.95). As ADI increased, risk of readmission increased, and risk reclassification was improved with ADI in the models. Patients in the highest ADI quintile were 25% more likely to die within a year (HR, 1.25 1.08‒1.44). Conclusions Residence in socioeconomically disadvantaged communities predicts rehospitalization and mortality. Measuring neighborhood deprivation can identify individuals at risk following cardiac hospitalization.