Association of Gestational Age at Birth With Symptoms of Attention-Deficit/Hyperactivity Disorder in Children.

ABSTRACT:

Importance

Preterm birth is associated with an increased risk of attention-deficit/hyperactivity disorder (ADHD); however, it is unclear to what extent this association can be explained by shared genetic and environmental risk factors and whether gestational age at birth is similarly related to inattention and hyperactivity/impulsivity and to the same extent in boys and girls.

Objectives

To investigate the association between gestational age at birth and symptoms of ADHD in preschool and school-age children after adjusting for unmeasured genetic and environmental risk factors.

Design, setting, and participants

In this prospective, population-based cohort study, pregnant women were recruited from across Norway from January 1, 1999, through December 31, 2008. Results of

SUBMITTER: Ask H 

PROVIDER: S-EPMC6142916 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature