Psychosocial predictors of body mass index at late childhood: a longitudinal investigation

The Mediating Effect of Self-Regulation in the Association Between Poverty and Child Weight: A Systematic Review

Deficits in self-regulation (SR) have been proposed as a potential contributor to child overweight/obesity, a public health concern that disproportionately affects children living in poverty. Although poverty is known to influence SR, SR has not been considered as a potential mechanism in the association between poverty and child obesity. The aim of the current paper was to systematically review the current literature to determine whether SR is a viable mechanism in the relationship between child exposure to poverty and later risk of overweight/obesity. We systematically review and summarize literature in three related areas with the aim of generating a developmentally informed model that accounts for the consistent association between poverty and child weight, specifically how: (1) poverty relates to child weight, (2) poverty relates to child SR, and (3) SR is associated with weight. To quantify the strength of associations for each pathway, effect sizes were collected and aggregated. Findings from the studies included suggest small but potentially meaningful associations between poverty and child SR and between SR and child weight. The conceptualization and measurement of SR, however, varied across literature studies and made it difficult to determine whether SR can feasibly connect poverty to child obesity. Although SR may be a promising potential target for obesity intervention for low-income children, additional research on how SR affects risk of obesity is crucial, especially based on the lack of success of the limited number of SR-promoting interventions for improving children's weight outcomes.

Cognitive, emotional, and behavioral contributors to early childhood weight status

Pediatric obesity is a serious public health concern affecting almost 16% of two- to five-year-olds. Prior research has not sufficiently addressed how various factors combine to contribute to the heterogeneous condition of obesity. The goal of this study was to assess multiple individual factors to determine how they collectively contribute to weight status in young children, as this information could lead to tailored interventions. This was a cross-sectional, population-based study of three- to five-year-olds. Child height and weight were measured. Parents completed a demographic survey and validated questionnaires regarding these child characteristics: internalizing and externalizing behaviors, sleep problems, executive functions, and food approach and food avoid behaviors. Data for 154 participants (mean age: 4.4 ± 0.8 years; mean body mass index-z: .28 ± 1.0; 50% male) were analyzed using linear and logistic regression and a stepwise regression procedure. In the stepwise selection procedure for the binary outcome of obese/overweight versus normal weight, food avoid (p = .151), food approach (p = .017), and the White demographic variable (p = .117) were identified as important predictors. In conclusion, when considering various cognitive, emotional, and behavioral factors, only food approach and food avoid eating behaviors predicted weight status in young children, suggesting prevention and intervention efforts should specifically address these aspects in young children.