Abstract Background Attention-Deficit/Hyperactivity Disorder is a developmental
neurological disorder that has three basic characteristics: Attention Deficit, Hyperactivity, and …

Background Attention deficit hyperactivity disorder (ADHD) is a commonly diagnosed
neuropsychiatric disorder in childhood, but the frequency of the condition is not well …

Background Attention deficit hyperactivity disorder (ADHD) is recognized as the most
common, and most studied, developmental age disorder. Basic information, such as the …

Background Emerging epidemiological data suggest that hundreds of primary studies have
examined the prevalence of ADHD in children and adolescents and dozens of systematic …

BACKGROUND AND OBJECTIVE: Overdiagnosis and underdiagnosis of attention-
deficit/hyperactivity disorder (ADHD) are widely debated, fueled by variations in prevalence …

Attention deficit hyperactivity disorder (ADHD) is among the most common, intensely
investigated, and yet diagnostically controversial neurobehavioral conditions of childhood …

Background Attention-deficit/hyperactivity disorder (ADHD) is the most common
neurodevelopmental disorders in childhood and adolescence, affecting 2.2 to 17.8% of all …

Background: Attention-deficit/hyperactivity disorder (ADHD) is a chronic neurobiological
disorder with childhood onset and persistence into adolescence and adulthood. Methods …

Background Attention deficit/hyperactivity disorder (ADHD), the most common childhood
neurobehavioural disorder, can produce a series of negative effects on children …

This article describes a comprehensive meta-analysis that was conducted to estimate the
prevalence of attention-deficit/hyperactivity disorder (ADHD), as defined by the Diagnostic …