This prospective study examined the developmental changes over time of adolescents
diagnosed in toddlerhood with autism spectrum disorder and searched for child …

This study is one of a very few prospective long‐term studies in autism spectrum disorder
(ASD). The study compared outcome trajectories in three adolescent groups (T2):“best …

Context To our knowledge, no prospective studies of the developmental course of early and
later diagnosis of autism spectrum disorders from 14 months of age exist. Objective To …

Autism spectrum disorder symptom emergence is heterogeneous, yet literature comparing
young children diagnosed early versus later is relatively scant. Toddlers diagnosed with …

Background Phenotypic heterogeneity among toddlers presenting with ASD symptoms
complicates diagnostic considerations and limits our ability to predict long‐term outcomes …

Longitudinal research into adult outcomes in autism remains limited. Unlike previous
longitudinal examinations of adult outcome in autism, the twenty participants in this study …

Objective For the first time, we use a longitudinal population-based autism cohort to chart the
trajectories of cognition and autism symptoms from childhood to early adulthood and identify …

The purpose of the present study was to examine the developmental outcomes of children 7
years after their initial diagnosis. Children diagnosed with autism or PDD-NOS at age 2 …

Background: This longitudinal study of 48 children diagnosed with autism at 2–5 years of
age was designed to test the hypothesis that diagnosis would remain stable for most of the …

The aims of the present study were to describe variations in the early course of development
in autism by utilizing an in-depth parent interview that incorporated techniques to improve …