Transitions between food insecurity and food security predict children's social skill development during elementary school.

Recent findings indicate that household food insecurity affects children's social skill development in the early years of elementary school. It is important to assess the persistency of developmental consequences and investigate whether all categories of social skills are equally affected by food insecurity experiences. The present paper estimates population-averaged and subject-specific models for children's social skill scores reported by school teachers using longitudinal data on 2310 boys and 2400 girls in the USA enrolled in the 1st (aged 6-9 years), 3rd (aged 8-11 years) and 5th (aged 10-13 years) grades (1999-2003) from the Early Childhood Longitudinal Study-Kindergarten. The main findings are, first, significantly (P < 0·05) negative, contemporaneous and transitional relationships between food insecurity experiences and children's social skill scores are evident. Estimates based on sex-stratified samples indicate that the contemporaneous association is strongest among girls, while the association of an early transition from food insecurity in the 1st grade to food security in the 3rd grade is strongest among boys. Second, food insecurity experiences predict children's social skill scores emphasising self-control, attentiveness and task persistence, rather than interpersonal relationships or externalising behaviour. Overall, the findings underscore the multifaceted effect that household food insecurity has on children's social skills and provide the strongest empirical evidence to date that the experiences are linked with non-nutritional developmental consequences for children over a time horizon spanning several years.