摘要：Objectives. We examined the relationship between children’s weight and social competence. Methods. We used data from the third- and fifth-grade waves of the nationally representative Early Childhood Longitudinal Study, Kindergarten Class of 1998–1999 (n = 8346) to examine changes in children’s weight and social competence. Results. Obesity in third grade was not associated with subsequent changes in social competence between third and fifth grade, but social competence in third grade was associated with subsequent development of obesity. Among normal-weight children, having higher social competence in third grade was associated with lower odds of becoming overweight (odds ratio [OR] = 0.80 ±0.09; P < .05) or obese (OR = 0.20 ±0.08; P < .001). In addition, obese children with higher social competence were more likely to lose weight between third and fifth grade (OR = 1.43 ±0.25; P < .05). Conclusions. Obesity and impaired social competence often occur together and have serious implications for children's well-being. More knowledge about how weight and social competence affect one another could inform interventions to promote children’s social development and reduce obesity. Nearly one third of US children are overweight or obese. 1 Previous studies have observed greater victimization and exclusion among obese children 2–4 and negative social and emotional consequences of such treatment from peers, including low self-esteem and depression. 5–9 Despite these documented links between obesity and impaired social well-being, little is known about the relationship between obesity and social competence—the set of skills and behaviors necessary for appropriate and positive social interaction. It may be that obese children, who endure significantly more teasing and victimization by their peers, 2,10 are at a disadvantage in developing the appropriate self-confidence necessary for social competence. At the same time, it may be that low social competence increases risk of obesity, because unhealthy behaviors may result from social stress and social isolation. 11–14
