Epidemiology

Screening with an ADHD-specific rating scale in preschoolers. A cross-cultural comparison of the Early Childhood Inventory-4

The Early Childhood Inventory-4 (ECI-4) Hyperactivity-Impulsivity (HI) and Inattention (IA) subscales are screeners for attention-deficit/hyperactivity disorder (ADHD). There have been few studies of the screening properties of these subscales, …

Diagnosis of hyperkinetic disorder among children in Norway

BACKGROUND. Hyperkinetic disorder is one of the most frequently used psychiatric diagnoses among children and adolescents in Norway. It has previously been shown that use of the diagnosis varies widely by county. MATERIAL AND METHOD. We estimated the …

Attention-Deficit/Hyperactivity Disorder in Preschoolers. The Accuracy of a Short Screener

OBJECTIVE. Although early and accurate screening is required for the remediation of attention-deficit/hyperactivity disorder (ADHD), possible gender differences have not been extensively studied. We examined the classification accuracy of the parent …

The influence of maternal dietary exposure to dioxins and PCBs during pregnancy on ADHD symptoms and cognitive functions in Norwegian preschool children

BACKGROUND. Polychlorinated dibenzo-p-dioxins/dibenzofurans (dioxins) and polychlorinated biphenyls (PCBs) are persistent organic pollutants (POPs) with potentially adverse impact on child neurodevelopment. Whether the potential detrimental effects …

Convergent and discriminant validity of psychiatric symptoms reported in The Norwegian Mother and Child Cohort Study at age 3 years with independent clinical assessment in the Longitudinal ADHD Cohort Study

Epidemiological studies often use parent questionnaires to assess children's development and mental health. To date, few studies have investigated the validity of parent questionnaires with standardized clinical assessments as criterion. The current …