… Both polythetic and latent trajectories analyses provided empirical evidence supporting
that the large majority of adults with ADHD had a neurodevelopmental disorder. …

… ADHD, likely resulting in under-identification of childhood-onset among adult cases with
ADHD… longstanding conceptualization of ADHD as a neurodevelopmental disorder with onset in …

… a neurodevelopmental disorder, ADHD requires onset of several symptoms prior to age 12,
several symptoms present across multiple settings, evidence of … of childhood-onset ADHD or …

… The authors concluded that adult ADHD might not be a childhood-onset neurodevelopmental
disorder; a conclusion which if supported by additional evidence would revolutionize our …

… without neurodevelopmental disorders are … childhood-onset and adult-onset ADHD could
be whether the difficulties in adaptation that are characteristic of neurodevelopmental disorders …

… and the recent evidence for a possible adult-onset ADHD. … study that adult ADHD is “not
a neurodevelopmental disorder”. … if adult ADHD with childhood onset were a rare condition. …

… disorder,” and from New Zealand, 4 that adult ADHD is “not a neurodevelopmental disorder.”
… link (without good evidence) childhood onset ADHD with adults with ADHD-like symptoms? …

… the United Kingdom 2 —have found evidence for adult-onset attention-deficit/hyperactivity
disorder (ADHD) in substantial proportions of adults with ADHD. These studies, plus an earlier …

… The concept of ADHD as a neurodevelopmental disorder has … and there is already some
evidence of distinct genetic risk … affected by ADHD than to those with childhood-onset ADHD. …

… adults with ADHD symptoms always have a childhood-onset … Attention-deficit/hyperactivity
disorder (ADHD) has been traditionally conceptualized as a neurodevelopmental disorder. …