Specifically, the mean prevalence rates of ADHD were higher in community samples (10.3 % for community samples vs 6.9 % for school samples), higher among males (9.2 % for males vs 3.0 % for
females), and higher among
children who were
diagnosed according toDSM - III - R criteria (10.3 % for DSM - III - R vs 6.8 % for DSM - III criteria).