Socioeconomic disadvantage and developmental delay among US children aged 18 months to 5 years

Background

Few studies have examined the relationship between sociodemographic factors and a population-based measure of developmental delay in US children. We identify sociodemographic factors associated with unlikely, probable and possible developmental delay in preschool US children using nationally representative data.

Methods

All children aged 18 months to 5 years in the 2007 National Survey of Children9s Health were...