Andrew Pickles|Kevin Durkin|Pearl L. H. Mok|Umar Toseeb|Gina Conti?Ramsden
Conduct problems co-occur with hyperactivity in children with language impairment: A longitudinal study from childhood to adolescence
King's College London|University of Strathclyde|University of Manchester|University of Manchester|University of Manchester
background language impairment common developmental disorder frequently associated externalising problems study investigate first time joint trajectories conduct problems hyperactivity children language impairment childhood adolescence determine patterns cooccurrence symptoms identify specific risk protective factors methods develop trajectory grouping method examine simultaneously conduct hyperactivity problem scores 164 children language impairment 7 8 11 16 years age results identified five groups children distinct trajectories symptoms three trajectory groups different conducthyperactivity problems persistent problems group 15 adolescentonset group 24 childhoodlimited group 17 two trajectory groups show conduct problems conclusions conduct problems always cooccurred hyperactivity children language impairment regardless differences onset symptoms childhood versus adolescence persistence persistent versus childhood limited reading difficulties strongly associated mixed conducthyperactivity problems started early childhood continued adolescence persistent trajectory group prosocial behaviours found protective conduct problems