Attention-deficit/hyperactivity disorder, predominantly inattentive subtype.

This article reviews research on the DSM-IV attention deficit/hyperactivity disorder inattentive (ADHD/IA) subtype. Data examining demographic characteristics, comorbidity, social functioning, and cognitive/attentional components are presented. Children with ADHD/IA show different patterns of demographic characteristics and comorbid symptomatology than those with ADHD/C, with suggestive evidence that they may differ in attentional style, as well. The implications of these results for treatment planning are discussed, along with suggestions that future research further examine attentional components, mechanisms contributing to impairment domains, and the role of sluggish cognitive tempo.