OBJECTIVES: To provide updated prevalence data on obesity trends among US children and adolescents aged 2 to 19 years from a nationally representative sample. METHODS: We used the NHANES for years 1999 to 2016. Weight status was determined by using measured height and weight from the physical examination component of the NHANES to calculate age- and sex-specific BMI. We report the prevalence estimates of overweight and obesity (class I, class II, and class III) by 2-year NHANES cycles and compared cycles by using adjusted Wald tests and linear trends by using ordinary least squares regression. RESULTS: White and Asian American children have significantly lower rates of obesity than African American children, Hispanic children, or children of other races. We report a positive linear trend for all definitions of overweight and obesity among children 2–19 years old, most prominently among adolescents. Children aged 2 to 5 years showed a sharp increase in obesity prevalence from 2015 to 2016 compared with the previous cycle. CONCLUSIONS: Despite previous reports that obesity in children and adolescents has remained stable or decreased in recent years, we found no evidence of a decline in obesity prevalence at any age. In contrast, we report a significant increase in severe obesity among children aged 2 to 5 years since the 2013–2014 cycle, a trend that continued upward for many subgroups.

Background Media exposure affects health, including obesity risk. Children’s movies often contain food placements—frequently unhealthy foods. However, it is not known if these cues influence children’s food choices or consumption after viewing. We explored whether children’s snack choices or consumption differs based on: 1) recent exposure to movies with high versus low product placement of unhealthy foods; and 2) children’s weight status. Methods Children ages 9–11 were assigned to watch a high (“Alvin and the Chipmunks,” n=54) or low (“Stuart Little,” n=60) product-placement movie. After viewing, participants selected a snack choice from each of five categories, several of which were specifically featured in “Alvin.” Uneaten snacks from each participant were weighed upon completion. Snack choice and amount consumed by movie were compared by t-tests, and differences in snack choices by movie were tested with logistic regression. Results Participants consumed an average of 800.8 kcal; mean kcal eaten did not vary by movie watched. Participants who watched the high product-placement movie had 3.1 times the odds (95% CI 1.3–7.2) of choosing cheese balls (most featured snack) compared to participants who watched the low product-placement movie. Children who were overweight or obese consumed a mean of 857 kcal (95% CI: 789–925) compared to 783 kcal (95% CI: 742–823, p=0.09) for children who were underweight or healthy weight. Children’s weight status did not significantly affect their choice of snack. Conclusions Branding and obesogenic messaging in children’s movies influenced some choices that children made about snack foods immediately following viewing, especially food with greatest exposure time in the film, but did not affect total calories consumed. Future studies should examine how the accumulation of these messages affects children’s long-term food choices.

Objective: Food insecurity is associated with childhood obesity possibly mediated through caregiver feeding practices and beliefs. We examined if caregiver feeding practices differed by household food security status in a diverse sample of infants. We hypothesize feeding practices differ based on food security status. Patients and Methods: Baseline cross-sectional analysis of data from a randomized controlled trial to prevent obesity. Included in the analysis was 842 caregivers of 2-month-old infants presenting for well-child care at 4 academic institutions. Food insecurity exposure was based on an affirmative answer to one of two items in a 2-item validated questionnaire. Chi-square tests examined the association between parent feeding practices and food security status. Logistic regression adjusted for covariates. Differences in caregiver feeding practices by food security status and race/ethnicity were explored with an interaction term (food security status x race/ethnicity). Results: 43% of families screened as food insecure. In adjusted logistic regression, parents from food-insecure households were more likely to endorse that “the best way to make an infant stop crying is to feed him/her” (aOR: 1.72, 95% CI: 1.28-2.29); and “When my baby cries, I immediately feed him/her” (aOR: 1.40, 95%CI: 1.06-1.83). Food insecure caregivers less frequently endorsed paying attention to their baby when s/he is full or hungry (OR 0.57 95%CI: 0.34-0.96). Racial/ethnic differences in beliefs and behaviors were observed by food security status. Conclusions: During early infancy, feeding practices differed among caregivers by household food security status. Further research is needed to examine whether these practices are associated with increased risk of obesity and obesity-related morbidity.

Objective:Little is known about the concordance of parent and child reports of children's media consumption, even though parents are often asked to report for their children in clinical care settings. We aimed to understand how parent and child reports of children's media consumption differ in an era of changing screen media consumption via personal devices. Methods:As part of a larger study about the reception of health-related cues from children's media, children ages 9 to 11 (N=114) and their parents independently completed identical questionnaires about specific media use and health behaviors. To examine concordance between child and parent reports of children's screen media use, we calculated mean number of minutes per day and proportions reported by the child and parent, and assessed concordance with t-tests and chi-square tests.Results: On a typical day, children reported nearly an hour each of video and app game use, computer use, and television exposure. Overall, child and parent reports were similar, usually