There is also evidence that scores on tests of nonverbal ability of children with DLD decrease over the course of development.DLD is associated with an elevated risk of social, emotional and mental health concerns. For instance, in a UK survey, 64% of a sample of 11-year-olds with DLD scored above a clinical threshold on a questionnaire for psychiatric difficulties, and 36% were regularly bullied, compared with 12% of comparison children. In the longer-term, studies of adult outcomes of children with DLD have found elevated rates of unemployment, social isolation and psychiatric disorder among those with early comprehension difficulties. However, better outcomes are found for children who have milder difficulties and do not require special educational provision. Prevalence
Epidemiological surveys in the US and the UK converge in estimating the prevalence of DLD in five-year-olds at around 7%. Therefore, the prevalence is about one in every 15 children. By these statistics, in a classroom of 30 students, 2 would have DLD. In research by Tomblin et al., prevalence of DLD in racial/ethnic groups was highest in Native Americans, with African Americans being the next highest, followed by Hispanic people, and then White people. No students of Asian descent presented with DLD; however, other research does indicate that DLD is present in children of Asian descent. Research
Much research has focused on trying to identify what makes language learning difficult for some children.
For seizures further randomized controlled trials are needed to evaluate the efficacy of antiepileptic drugs (AED) for seizure prevention in patients with symptoms other than seizures and the duration of AED treatment in these cases. Epidemiology
The epidemiology of Taenia solium cysticercosis is associated with poor sanitation and is highly prevalent in Sub-Saharan Africa, Latin America and Asia. Cysticercosis in the United States, which commonly presents in the form of neurocysticercosis, has been classified as a "neglected tropical disease", which commonly affects the poor and homeless, particularly those without access or in the habit of inadequate hand-washing and in the habit of eating with their hands. == References ==