The increased prevalence of ADHD in boys been well established.27,61-62 Rates of ADHD in recent surveys consistently show a male preponderance of ADHD as follows: 1 1 .8% in boys and 5.4% in girls,60 3.62% in boys and 0.85% in girls,59 2.0% for boys and 0.5% for girls;15 and 1.5% for boys and 0.3% for girls.12
