According to the DSM-IV-TR survey in 2000, about 3%-7% of children in the United States suffer from ADHD. According to the Annual Report of American Health Interview Survey published by the US Centers for Disease Control in 2004, about 4 million children 18 years old in the United States were diagnosed with ADHD. However, the proportion of assessment varies greatly, and even 60% of children in some campuses are diagnosed with ADHD. At present, more than 6,543,800 adults and children in the United States need to take prescription drugs because of this disease. According to the statistics in 2002, the proportion of boys diagnosed with ADHD is twice that of girls (the proportion of boys:10%; Female ratio: 4%). We still don't know the exact reason for this gender difference. However, some experts pointed out that it is possible that the symptoms of girls are generally milder than those of boys, and it is more difficult to detect when they are diagnosed, so they are rarely found and referred by parents and teachers.
Hong kong's figures
In Hong Kong, due to the problem of resource allocation in the past, the Education and Manpower Bureau has never allocated any resources to explore this issue. It was not until June 2004 (1 1) to June 2004 (65438+2) that the Education and Manpower Bureau conducted a systematic survey in Hong Kong for the first time to study the proportion of disabled students in various schools after the implementation of integrated education. However, based on the informal observation of some in-service teachers from their respective schools, we also found a result similar to the American study, that is, the proportion of boys is higher than that of girls, and girls usually find this problem later. The teacher concluded that this may be related to the fact that girls in Hong Kong are generally quieter than boys, but it still needs to be confirmed by research.
Figures for Taiwan Province Province
According to the statistics of Taiwan Province Province, about 5%-7% of school-age children suffer from ADHD. The proportion of ADHD in children also varies according to gender: the average index of girls is 2.9%, and that of boys is 9.2%, which is three times more than that of girls. The reason is that the symptoms of ADHD shown by most boys are impulsive and hyperactive, which are easy to be found; However, most girls are inattentive and easily overlooked. The incidence of this disease is the highest among children's mental diseases at present. Studies have found that if ADHD occurs in childhood, about 30% to 70% will last until teenagers and adults. As mentioned earlier, in infancy and childhood, the incidence of boys is three times that of girls; However, there is no special gender difference in the incidence of ADHD in adulthood. Overall, about 2% of adults suffer from ADHD.
The meaning behind the numbers
As far as the current situation is concerned, ADHD is still a global problem.