The associations of plant-based food and metabolic syndrome using NHANES 2015-16 data.

BACKGROUND: Consuming a diet rich in plant-based foods (PBFs) may be protective for risk of metabolic syndrome (MetS) and chronic disease. However, the impact of consuming healthy versus all types of PBF on MetS is unknown. METHODS: The relationship between consumption of PBF (both healthy and all) was examined using data from the 2015 to 2016 National Health and Nutrition Examination Survey (NHANES). The amount of PBFs consumed was calculated as average daily servings, whereas dichotomous MetS variables were based on the National Cholesterol Education Adult Program Treatment Panel III (2005). After weighting and multiple imputation, adjusted associations were examined using logistic regression and marginal probabilities. RESULTS: Consumption of healthy PBF was significantly associated with reduced risk for elevated waist circumference (P = 0.017; odds ratio, OR 0.96, 95% confidence interval, CI 0.94-0.98) and MetS (P = 0.006; OR 0.96, 95% CI 0.93-0.99). Interactions revealed significant protective effects for females who were $\ge$ 60 years. CONCLUSIONS: In the adjusted model, a 1-unit increase in daily servings of healthy PBF was associated with a 4% lower risk for prevalence of elevated waist circumference and a 4% decrease in risk for prevalence of MetS. Increasing consumption of PBF may offer a viable strategy for reducing risk of MetS.

Associations between perceived racial discrimination, racial residential segregation, and cancer screening adherence among low-income African Americans: a multilevel, cross-sectional analysis.

OBJECTIVES: African Americans suffer disproportionately from cancer compared to their White counterparts. Racism may be an important determinant, but the literature on its association with cancer screening is limited. We examine associations between racism and cancer screening among a sample of African Americans. DESIGN: Guided by the Public Health Critical Race Praxis and the Behavioral Model of Health Services Use, we conducted a multilevel, cross-sectional study using cancer risk assessment data collected from 405 callers to the 2-1-1 Texas helpline. We merged these data with contextual data from the U.S. Census Bureau. We assessed perceived racial discrimination using the Experiences of Discrimination Scale and racial residential segregation using the Location Quotient for Racial Residential Segregation. We used multilevel regression models to test hypothesized associations between each indicator of racism and four cancer screening adherence outcomes (Pap test, mammography, colorectal cancer screening [CRCS], and any cancer screening). RESULTS: Participants were 18-83 years old (mean = 45 years). Most (81%) were non-adherent to at least one recommended screening. Approximately 42% reported experiencing discrimination and 73% lived in a segregated neighborhood. Discrimination was non-significantly related to lower odds of mammography (aOR = 0.68; 95%CI: 0.38-1.22), CRCS (aOR = 0.79; 95%CI: 0.41-1.52), and any cancer screening adherence (aOR = 0.88; 95%CI: 0.59-1.32). Segregation was related to greater odds of mammography (non-significant; aOR = 1.43; 95%CI: 0.76-2.68) and CRCS (significant; aOR = 2.80; 95%CI: 1.21-6.46) but not associated with any cancer screening. Neither indicator of racism was associated with Pap test screening adherence. CONCLUSIONS: Racism has a nuanced association with cancer screening among low-income, medically underserved African Americans. Specifically, discrimination appears to be associated with lower odds of screening, while segregation may be associated with higher odds of screening in certain situations. Future research is needed to better explicate relations between indicators of racism and cancer screening among African Americans.

Perspectives of Health Care Staff on Predictors of Success in a Food Prescription Program: A Qualitative Study.

Partnerships between food prescription programs and food banks can address food insecurity and support health; however, few studies have examined the experience and perceptions of health care partners about these programs. Our objective was to analyze secondary qualitative data from clinicians and clinic staff involved in implementing a food prescription program in Houston, Texas. We collected data from 17 health care clinics from May 2018 through March 2021 to learn how implementation of the food prescription program was perceived, and we received 252 responses. Principal themes were the importance of a value-based care strategy, patient and food pantry barriers to success, the importance of interorganizational care coordination, and the need to integrate food prescriptions into clinic workflow. Insights of clinicians and clinic staff on implementation of food prescription programs can inform program development and dissemination.

Prenatal Exposure to Tobacco and Childhood Cognition and Behavior: Effect Modification by Maternal Folate Intake and Breastfeeding Duration.

In this exploratory analysis, we assessed whether nutrition modified the association between prenatal exposure to tobacco and childhood cognition/behavior among 366 Colorado-based mothers and their offspring (born ≥ 37 weeks with birthweights ≥ 2500 g). Interaction by folate ( 5 months, but not for shorter durations. Our findings support the need for smoking cessation campaigns throughout pregnancy and throughout the postpartum period breastfeeding to reduce neurobehavioral risks in the offspring.

Restricting Tobacco Retail Outlets Around Middle and High Schools as a Way to Reduce Tobacco Marketing Disparities: A Simulation Study.

INTRODUCTION: Communities with more people of color and economically disadvantaged residents are disproportionately exposed to tobacco marketing from tobacco companies. This study examined if banning tobacco retail outlets (TROs) within 1000 ft of schools would reduce these marketing disparities through a greater reduction in the amount of tobacco advertising around schools in these communities. METHODS: Data from objectively audited advertisement data from 106 convenience stores and gas stations around 42 middle and high schools located in the four major metropolitan areas of Texas were linked with schools' enrollment data. ArcGIS (Aeronautical Reconnaissance Coverage Geographic Information System) was used to simulate a 1000-ft ban of tobacco sales around the schools. Independent sample T-tests and Mann-Whitney U tests were used to test mean differences where appropriate. RESULTS: Schools with a higher enrollment of Hispanic/Latino (mean = 171.6, SD = 96.9) and economically disadvantaged students (mean = 168.9, SD = 102.3) were surrounded with significantly greater advertising at TROs than schools with lower enrollment of these groups (mean = 82.8, SD = 49.1 and mean = 89.2, SD = 50.6, respectively). A simulated 1000 ft ban of TROs around schools led to greater advertising reduction around schools with a higher enrollment of Hispanic/Latino students (13.3%-29.4% reductions) in comparison to schools with lower Hispanic/Latino student enrollment. However, the more economically disadvantaged schools had a smaller reduction in the number of advertisements (5.9%-21.9% reductions) in comparison to schools with less economically disadvantaged students. CONCLUSION: The implementation of a ban of tobacco sales at TROs within 1000 ft of schools is one policy approach to reduce youth exposure to tobacco marketing, particularly among students of color. STUDY IMPLICATION: Tobacco retail outlets (TROs) around schools with a higher enrollment of Hispanic/Latino and economically disadvantaged students had significantly more tobacco advertisements in comparison to schools with lower enrollment of these student groups. A simulated ban of TROs within 1000 ft of schools led to greater advertising reduction around schools with a higher enrollment of Hispanic/Latino students. For schools with more economically disadvantaged students, the ban led to a smaller reduction in advertisements in comparison to schools with less economically disadvantaged students. This proposed place-based strategy could be a successful means to reduce tobacco advertising and marketing disparity among communities of color.

A Simulation of the potential impact of restricting tobacco retail outlets around middle and high schools on tobacco advertisements.

OBJECTIVE: To examine (1) if tobacco retail outlets (TROs) closer to middle and high schools have more tobacco advertisements than TROs farther away and (2) the potential impact of two place-based tobacco control strategies on tobacco advertisements: a simulated ban of TROs (1) within 1000ft of schools and (2) within 500 ft of other TROs. METHODS: TROs within half-mile of 53 middle and high schools in the four largest Metropolitan areas in Texas were audited for all tobacco marketing. ArcGIS was used for mapping and grouping TROs by distance from the schools and simulating the ban. Mean differences in the number of tobacco advertisements were examined with t-tests. Percentage reductions in tobacco advertisements were calculated after simulation of both bans, reported by school type and by location, product and flavour. RESULTS: TROs within 1000 ft of schools had significantly more tobacco advertisements as compared with TROs located within 1000-2000 ft (p=0.03) for all schools combined and middle schools. Simulation of the 1000 ft ban of TROs led to a slightly greater reduction in advertisements (19.4%) as compared with the 500 ft ban of TROs from other TROs (17.9%). The reduction in all advertisement types was greater around middle schools and greatest for e-cigarettes (23.6%). CONCLUSION: Students can be exposed to a great deal of tobacco advertising in TROs around their schools. The implementation of a 1000 ft ban of TROs, or at minimum a ban on tobacco advertising outside and within these outlets, is one way to prevent or reduce the use of tobacco among adolescents.

Validation of the FRESH Austin food frequency questionnaire using multiple 24-h dietary recalls.

OBJECTIVE: The purpose of the current study was to examine the validity of an FFQ utilised in the Food Retail: Evaluating Strategies for a Healthy Austin (FRESH Austin) study, designed to evaluate changes in the consumption of fruits and vegetables (FV) in diverse low-income communities in Austin, TX. DESIGN: The FRESH Austin FFQ was validated against three 24-h dietary recalls (24hDR). All dietary assessments were administered (in-person or by telephone) by trained investigators. SETTING: Recruitment was conducted at sites within the geographic areas targeted in the FRESH Austin recruitment. People at a community health clinic, a local health centre and a YMCA within the intervention area were approached by trained and certified data collectors, and invited to participate. PARTICIPANTS: Among fifty-six participants, 83 % were female, 46 % were non-White, 24 % had income < $25 K/year and 30 % spoke only/mostly Spanish at home. RESULTS: The FFQ and average of three 24hDR produce similar estimates of average total servings/d across FV (6·68 and 6·40 servings/d, respectively). Correlations produced measures from 0·01 for 'Potatoes' and 0·59 for 'Other Vegetables'. Mean absolute percentage errors values were small for all FV, suggesting the variance of the error estimates was also small. Bland-Altman plots indicate acceptable levels of agreement between the two methods. CONCLUSION: These outcomes indicate that the FRESH FFQ is a valid instrument for assessing FV consumption. The validation of the FRESH Austin FFQ provides important insights for evaluating community-based efforts to increase FV consumption in diverse populations.

Efficacy of various prescribed vitamin D supplementation regimens on 25-hydroxyvitamin D serum levels in long-term care.

OBJECTIVE: The aims of this study were to examine the efficacy among various vitamin D supplementation regimens on serum 25-hydroxyvitamin D (25(OH)D) concentrations and determine the minimal dose rate required to achieve sufficient serum concentrations (≥75 nmol/l) among older adults in long-term care (LTC). DESIGN: A 1-year medical history was abstracted from medical records, and a one-time blood draw to measure serum 25(OH)D concentrations was obtained. Individuals were stratified into vitamin D-supplemented and non-supplemented groups. The supplemented group was further categorised into four treatment forms: single-ingredient vitamin D2or3, multivitamin, Ca with vitamin D or combination of the three, and by daily prescribed doses: 0-9·9, 10-19·9, 20-49·9, 50-99·9 and >100 µg/d. SETTING: Five LTC communities in Austin, Texas. PARTICIPANTS: One hundred seventy-three older (≥65 years) adults. RESULTS: Of the participants, 62% received a vitamin D supplement and 55% had insufficient (≤75 nmol/l) 25(OH)D serum concentrations. Individuals receiving single-ingredient vitamin D2or3 supplementation received the highest daily vitamin D mean dose (72·5 µg/d), while combination of forms was the most frequent treatment (44%) with the highest mean serum concentration (108 nmol/l). All supplementation doses were successful at reaching sufficient serum concentrations, except those<20 µg/d. Using a prediction model, it was observed that 0·025 µg/d of vitamin D supplementation resulted in a 0·008 nmol/l increase in serum 25(OH)D concentrations. CONCLUSIONS: Based on the predictive equation, results suggest that supplementation of 37·5 µg/d of vitamin D2or3 or combination of vitamin D is most likely to achieve sufficient serum 25(OH)D concentrations in older adults in LTC.

Associations between variety of fruits and vegetables consumed, diet quality, and sociodemographic factors among 8th and 11th grade adolescents in Texas.

OBJECTIVE: To examine demographic and dietary correlates of consumption of a variety of fruits and vegetables (FV) among Texas adolescents. Different types of FV are needed for adequate dietary intake of vitamins and phytochemicals for proper development and functioning throughout the lifespan. DESIGN: Cross-sectional analysis from the Texas Surveillance of Physical Activity and Nutrition (Texas SPAN) data comparing consumption of a variety of fruit and vegetables by gender, race/ethnicity, and region (Texas-Mexico border/non-border). SETTING: Middle, high schools in Texas. PARTICIPANTS: 8th, 11th grade Texas adolescents (n=9,056 representing N=659,288) mean age 14.8 years. RESULTS: Within this sample, mean fruit and vegetable variety scores (0-7) ranged from 2.47-2.65. Boys consumed a significantly greater variety of fruit than girls (m=1.12 compared to 1.04). Adolescents in non-border regions consumed a greater variety of vegetables and FV compared to those in border regions. FV variety was associated with healthier eating in the full sample, particularly in the highest Socioeconomic Status (SES) tertile. Within the highest SES tertile, a one-unit increase in variety of fruit, vegetable, and FV was associated with significant increases (p<0.001) in a healthy eating measure, the SPAN Healthy Eating Index: Fruit variety (ß=1.33, SE=.29), Vegetable variety (ß=0.90, SE=0.28), and FV Variety (ß=.81, SE=0.19). CONCLUSIONS: Consumption of a greater variety of FV appears to be associated with a healthier overall diet. Associations of FV variety with healthy eating were most significant in the highest SES tertile. These findings support the need to further examine consuming a variety of FV within healthy eating behavior.

Weight status and meeting the physical activity, sleep, and screen-time guidelines among Texas children: results from a population based, cross-sectional analysis.

BACKGROUND: Evidence suggests that the interactive effects of physical activity, screen-time and sleep are stronger than independent effects of these behaviors on pediatric obesity. However, this hypothesis has not been fully examined among samples of young school-aged children. The aim of this study is to determine the association of weight status with meeting the physical activity, screen-time, and sleep guidelines, independently and concurrently, among 2nd grade children. METHODS: The Texas School Physical Activity and Nutrition Project collected parent-reported physical activity, screen-time, and sleep, and measured body height and weight on a statewide representative weighted sample (n = 320,005) of children. Weighted multivariable logistic regressions were used to assess associations of weight status (classified using age- and sex-specific body weight [kg]/height [m]2, based on International Obesity Task Force cutoffs) with meeting the physical activity, screen-time, and sleep guidelines, while controlling for relevant covariates (age, sex, race/ethnicity, comorbidities etc.). RESULTS: A greater proportion of healthy weight children (9.9%) met the physical activity, screen-time, and sleep guidelines concurrently compared to children who are thin (3.3%), or children with overweight (5.7%), obese (3.5%), and morbid obesity (1.0%). Children who were thin (adjusted odds ratio [aOR]:0.40, 95% confidence interval [CI]: 0.10, 1.50), overweight (aOR = 0.75, CI: 0.33, 1.70), obese (aOR = 0.53, CI: 0.15, 1.81), and morbidly obese (aOR = 0.10, CI: 0.02, 0.28) had lower odds of concurrently meeting the guidelines compared to children with healthy weight. CONCLUSIONS: Among this representative sample of Texas children, weight status was associated with meeting physical activity, screen-time, and sleep guidelines. Future studies should aim to evaluate causal relations between these behaviors and weight status.

Interweaving Adult Fitness Classes Into Community Settings Via Stronger Austin's Community Partnership Model: Increasing Access to Physical Activity and Positive Social Connectedness in Underserved Communities.

The lack of environmental supports for healthy lifestyles is a potent factor in the high prevalence of noncommunicable diseases among communities experiencing economic disadvantage. Stronger Austin aimed to increase access to free physical activity (PA) and fitness programming (eg, Zumba) in underserved communities in Austin, Texas, via a partnership and interweaving into context approach in which classes are interwoven into settings with widespread access for residents, including clinics, city-supported housing, parks, recreation centers, and schools. We aimed to better understand the PA-related benefits and opportunities for improvement when adult fitness classes are interwoven into community settings. A mixed-methods design guided the study, which included SOFIT (Structured Observation of Fitness Instruction Time) assessments of class PA (n = 160 participants) and qualitative assessment of highlights and recommendations for class improvement via participant focus groups (n = 24), open-ended questionnaires (n = 258), and instructor interviews (n = 6). Findings indicated high levels of class PA (76.9%-86.9% of 1-hour class spent in moderate-to-vigorous PA; mean of 18 participants per class), with positive social connectedness cited as a key benefit. Challenges and best practices of community-based fitness classes are explored. Stronger Austin's partnership and interweaving into context approach represents a promising model for increasing access to fitness classes in underserved communities.

Outcomes of a Community-Wide Health Intervention in a Low-Income, Primarily Hispanic Community: The Go! Austin/Vamos! Austin (GAVA) Initiative.

OBJECTIVES: To describe outcomes of a 4-year physical activity (PA) and nutrition intervention (2013-2017) in Dove Springs, a low-income urban community in Texas. METHOD: Go! Austin/Vamos! Austin is a place-based intervention targeting the built and social environments of PA and nutrition. Baseline and follow-up measures related to PA and nutrition were obtained from 357 parent-child dyads (final n = 236) in the intervention community and a control community. A three-level dose of exposure measure was created to indicate the amount of exposure to intervention activities across the 4 years. Pre-post changes in key outcomes by level of exposure and contrasts across "high exposure" and "no exposure" categories were obtained using repeated-measures regression, adjusting for important confounders. RESULTS: "High exposure" adult participants showed consistently more favorable changes than "no exposure" participants across a variety of indicators, including positive perceptions and utilization of community PA resources, amount of moderate PA, utilization of retail outlets offering fresh produce, and measures of healthy eating. Few improvements were seen in child-level outcomes. CONCLUSIONS: Community interventions can successfully improve health-promoting behaviors provided they ensure sufficient dose of exposure.

Mapping Food Insecurity-Related 2-1-1 Calls in a 10-County Area of Central Texas by Zip Code: Exploring the Role of Geographic Food Access, Urbanicity and Demographic Indicators.

Food insecurity is a public health issue that affects 12% of Americans. Individuals living in food insecure households are more likely to suffer from conditions such as undernutrition, obesity and chronic diseases. Food insecurity has been linked to limited geographic access to food; however, past studies have used limited measures of access which do not fully capture the nuances of community context. The purpose of this study was to explore the association between food insecurity and geographic food access by level of urbanicity. 2-1-1 calls made in 2018 in Central Texas were classified as food needs versus non-food needs. Supermarket and convenience stores were mapped using ArcGIS. Geographic food access was operationalized as the presence of supermarkets and convenience stores: within the zip code; only in neighboring zip codes; and not located within or in neighboring zip codes. Descriptive statistics and binomial logistic regression were used to examine associations between geographic access and 2-1-1 food calls, stratified by level of urbanicity. 11% of the 2-1-1 calls made in 2018 (N = 55,405) were regarding food needs. Results showed that peri-urban and rural callers living in zip codes that only had supermarkets in neighboring zip codes had greater odds of calling about food needs compared to those that had supermarkets within the zip code. These findings indicate that geographic food access is associated with food insecurity, but this relationship varies by urbanicity. Thus, the development of food insecurity mitigation programs in peri-urban and rural areas is needed.

Association Between Food Insecurity and Diet Quality Among Early Care and Education Providers in the Pennsylvania Head Start Program.

INTRODUCTION: Food insecurity affects dietary behaviors and diet quality in adults. This relationship is not widely studied among early care and education (ECE) providers, a unique population with important influences on children's dietary habits. Our study's objective was to explore how food insecurity affected diet quality and dietary behaviors among ECE providers. METHODS: We used baseline data from a cluster-randomized controlled trial (January 2019-December 2020) on 216 ECE providers under the Pennsylvania Head Start Association. We used radar plots to graph scores for the Healthy Eating Index 2015 and the Alternative Healthy Eating Index (AHEI) 2010 and fitted a multivariate regression model for diet quality measures, adjusting for covariates. RESULTS: Among the 216 participants, 31.5% were food insecure. ECE providers who were food insecure had a lower AHEI-2010 mean score (mean difference for food insecure vs food secure = -4.8; 95% CI, -7.8 to -1.7; P = .002). After adjusting for covariates, associations remained significant (mean difference = -3.9; 95% CI, -7.5 to -0.4; P = .03). Food insecure ECE providers were less likely to use nutrition labels (22.8% vs 39.1%; P = .046) and more likely to report cost as a perceived barrier to eating fruits and vegetables. CONCLUSION: We found a significant inverse association between food insecurity and the AHEI-2010 diet quality score among ECE providers after adjusting for covariates. More studies are needed to examine the effects of food insecurity on dietary behaviors of ECE providers and their response to nutrition education programs targeting their health.

Social Determinants of Health-Related Needs During COVID-19 Among Low-Income Households With Children.

INTRODUCTION: Little is known about the social needs of low-income households with children during the coronavirus-2019 (COVID-19) pandemic. Our objective was to conduct a cross-sectional quantitative and qualitative descriptive analysis of a rapid-response survey among low-income households with children on social needs, COVID-19-related concerns, and diet-related behaviors. METHODS: We distributed an electronic survey in April 2020 to 16,435 families in 4 geographic areas, and 1,048 responded. The survey asked families enrolled in a coordinated school-based nutrition program about their social needs, COVID-19-related concerns, food insecurity, and diet-related behaviors during the pandemic. An open-ended question asked about their greatest concern. We calculated descriptive statistics stratified by location and race/ethnicity. We used thematic analysis and an inductive approach to examine the open-ended comments. RESULTS: More than 80% of survey respondents were familiar with COVID-19 and were concerned about infection. Overall, 76.3% reported concerns about financial stability, 42.5% about employment, 69.4% about food availability, 31.0% about housing stability, and 35.9% about health care access. Overall, 93.5% of respondents reported being food insecure, a 22-percentage-point increase since fall 2019. Also, 41.4% reported a decrease in fruit and vegetable intake because of COVID-19. Frequency of grocery shopping decreased and food pantry usage increased. Qualitative assessment identified 4 main themes: 1) fear of contracting COVID-19, 2) disruption of employment status, 3) financial hardship, and 4) exacerbated food insecurity. CONCLUSION: Our study highlights the compounding effect of the COVID-19 pandemic on households with children across the spectrum of social needs.

Parental and peer social support is associated with healthier physical activity behaviors in adolescents: a cross-sectional analysis of Texas School Physical Activity and Nutrition (TX SPAN) data.

BACKGROUND: Parental and peer support can influence children's physical activity; however, these associations have not been fully examined in a multi-ethnic population across early and late adolescence. The objective of this study was to examine associations between perceived parental/peer social support, perceived parental disapproval for not exercising, and physical activity/screen time behaviors among a multi-ethnic sample of adolescents. METHODS: The Texas School Physical Activity and Nutrition (TX SPAN) survey is a cross-sectional statewide probability-based survey, used to assess obesity-related behaviors such as diet and physical activity. The SPAN 2009-2011 study measured 8th and 11th grade students using a self-report questionnaire with established psychometric properties, along with objectively measured height and weight. Associations were examined using multiple logistic and linear regression. RESULTS: For every 1-point increase in parental physical activity support, adolescents had 1.14 higher odds of engaging in five or more days of moderate physical activity per week (p < 0.001), and 1.12 higher odds of engaging in three or more days of vigorous physical activity per week (p < 0.001). For every 1-point increase in peer physical activity support, adolescents had 1.17 higher odds of engaging in five or more days of moderate physical activity per week (p < 0.001), and 1.15 higher odds of engaging in three or more days of vigorous physical activity per week (p < 0.001). CONCLUSIONS: Parental and peer social support is associated with positive physical activity behaviors in adolescents. Strategies to focus on parent and peer support should be integral to intervention programs designed to increase physical activity in adolescents in middle and high schools.

The effect of prenatal maternal cigarette smoking on children's BMI z-score with SGA as a mediator.

BACKGROUND: The goal of this study was to assess the effect of prenatal maternal cigarette smoking on children's BMI z-score trajectories, and to evaluate whether small-for-gestational-age (SGA) acts as a potential mediator between prenatal maternal cigarette smoking and child's BMI z-score at 4 years of age. METHODS: Group-based trajectory modeling (GBTM) methods were employed to describe and classify developmental BMI z-score trajectories (the outcome of interest) in children from 9 months to 4 years of age (n = 5221) in the Early Childhood Longitudinal Study, Birth Cohort (ECLS-B) study (2001-2005). Further analysis examined whether the identified BMI z-score trajectories varied with the exposure, prenatal maternal cigarette smoking. Mediation analyses were utilized to examine whether being SGA (binary measure) acted as a potential mediator in the relationship between prenatal maternal cigarette smoking and BMI z-score among 4-year-old children. RESULTS: Using GBTM, two BMI z-score trajectory groups were identified: normal BMI z-score (57.8%); and high BMI z-score (42.2%). Children of mothers who smoked cigarettes during pregnancy were 2.1 times (RR 95% CI: 1.1-4.0, P value = 0.023) more at risk of being in the high BMI z-score trajectory group. Prenatal cigarette smoking was positively related to SGA at birth, but SGA was inversely related to BMI z-score at 4 years. The direct effect (0.19, 95% CI: 0.18, 0.19; P value < 0.001) of maternal cigarette smoking status during pregnancy on BMI z-score among 4-year-old children was stronger and in the opposite direction of the indirect effect (-0.04, 95% CI: -0.04, -0.04; P value < 0.001) mediated through SGA. CONCLUSIONS: In this study, prenatal maternal cigarette smoking was positively associated with the high BMI z-score group, as well with SGA. The effects of prenatal smoking on BMI z-score at 4 years appears to act through pathways other than SGA.

Parent packs, child eats: Surprising results of Lunch is in the Bag's efficacy trial.

Early care and education (ECE) centers that require lunch brought from home provide an uncluttered view of parent-child dietary interactions in early childhood. Children's eating from parent-provided bag lunches was observed at 30 ECE centers in Texas, with 15 randomly assigned to the Lunch is in the Bag intervention to improve the lunch meal and 15 to a wait-list control condition. Study participants were parent and child aged 3-5 years (N = 633 dyads). Data were collected at baseline (pre-intervention) and follow-ups at weeks 6 (post-intervention), 22 (pre-booster), and 28 (post-booster). Changes effected in the children's lunch eating-e.g., increase of 14 percent in prevalence of children eating vegetables (SE = 5, P = 0.0063)-reciprocated changes in parent lunch-packing. Irrespective of intervention, however, the children consumed one-half to two-thirds of the amounts of whatever foods the parents packed, and the eat-to-pack ratio did not change across time. Thus, children's lunch eating at the ECE centers appeared to be regulated by perceptual cues of food availability rather than food preferences or internal cues of hunger and satiety.

Effect of Media Use on Adolescent Body Weight.

INTRODUCTION: Adolescents spend a substantial amount of time consuming media, including watching television, playing video games, and using electronic devices to access the internet. We examined the relationship between prolonged media use on screen devices and its potential association with obesity through several mechanisms. METHODS: We used data from 659,288 eighth and eleventh grade students who participated in the 2015-2016 School Physical Activity and Nutrition (SPAN) survey in Texas to examine the associations between hours of media use per day and 3 behaviors related to obesity: timing of last food intake, unhealthy eating behavior, and sleep hours. Also, mediation analyses were conducted to examine the pathways between hours of media use and body mass index (BMI). RESULTS: Compared with adolescents who used media 2 hours or less per day, those who used media 6 hours or more had higher odds of nighttime eating (odds ratio [OR], 3.16; 95% confidence interval [CI], 1.76-5.66) and inadequate sleep (OR, 1.57; 95% CI, 1.05-2.36) and a higher coefficient for Unhealthy Eating Index score (3.87; 95% CI, 1.3-6.37). Mediation analysis demonstrated that for males sleep hours and timing of last food intake mediated the pathway between hours of media use and BMI. For females, unhealthy eating behavior mediated this pathway. CONCLUSION: Adolescents who used electronic media 6 or more hours at night had higher odds of unhealthy eating behavior and inadequate sleep hours than those with 2 hours' use or less. Attention to behaviors associated with adolescents' prolonged media use is needed to reduce risk of obesity.

Surveillance Systems to Track and Evaluate Obesity Prevention Efforts.

To address the obesity epidemic, the public health community must develop surveillance systems that capture data at levels through which obesity prevention efforts are conducted. Current systems assess body mass index (BMI), diet, and physical activity behaviors at the individual level, but environmental and policy-related data are often lacking. The goal of this review is to describe US surveillance systems that evaluate obesity prevention efforts within the context of international trends in obesity monitoring, to identify potential data gaps, and to present recommendations to improve the evaluation of population-level initiatives. Our recommendations include adding environmental and policy measures to surveillance efforts with a focus on addressing underserved populations, harmonizing existing surveillance systems, including more sensitive measures of obesity outcomes, and developing a knowledgeable workforce. In addition, the widespread use of electronic health records and new technologies that allow self-quantification of behaviors offers opportunities for innovative surveillance methods.