Comparing ADHD symptom levels in children adopted from Eastern Europe and from other regions: Discussing possible factors involved

► We compare ADHD symptoms in children adopted from Eastern Europe and other regions. ► We examine the influence of personal/family factors in the display of ADHD symptoms. ► Children adopted from Eastern Europe showed more ADHD symptoms. ► Being a girl was a protective factor for the Hyperactivity/impulsivity scale. ► Older children were more likely to show inattention.