There has been limited epidemiologic information concerning preschoolers' behavioral and emotional problems in Eastern societies. This study was therefore aimed to investigate behavioral and emotional problems in a large sample of Taiwanese preschoolers using the Child Behavior Checklist for Ages 1.5-5 (CBCL/1.5-5). The CBCL/1.5-5 was scored by…

The aim of the present study was to investigate the prevalence of behavior problems among people with administratively defined intellectual disability (ID) and identify possible risk markers for behavior problems using the Behavior Problems Inventory (BPI). Sixty-two percent of the ID population (n = 915) had a behavior problem (self-injurious,…

In people with intellectual disability (ID), impaired sleep is common. Life expectancy has increased in this group, and it is known that in general population sleep deteriorates with aging. Therefore the aims of this systematic review were to examine how sleep problems are defined in research among adults and older people with ID, and to collect…

Prevalence rates of behavioral problems in children with motor disabilities are commonly based on questionnaires developed for a general population (e.g., Child Behavior CheckList). These questionnaires do not take into account lower levels of intellectual functioning. The first aim of this study was to examine the prevalence of parent-reported…

Children and adults with developmental disabilities are more likely to evince encopresis, soiling and constipation than the general population. This set of related behaviors can produce a great deal of stress and can be a major restriction in independent living. This paper provides a review of the current state of knowledge on the prevalence,…

The main goals of this study were to determine the prevalence, frequency and severity of challenging behaviour in people with profound intellectual and multiple disabilities (PIMD). Because in the literature several health problems and sensory impairments are associated with the onset and existence of challenging behaviour, this relationship was…

Intellectual disability (ID) and autism spectrum disorders (ASDs) covary at very high rates. Similarly, greater severity of one of these two disorders appears to have effects on the other disorder on a host of factors. A good deal of research has appeared on the topic with respect to nosology, prevalence, adaptive functioning, challenging…

This study assessed the prevalence and type of associated neuropsychiatric problems in children and adults with 22q11 deletion syndrome. One-hundred consecutively referred individuals with 22q11 deletion syndrome were given in-depth neuropsychiatric assessments and questionnaires screens. Autism spectrum disorders (ASDs) and/or attention…

The relationship between behavior problems and psychiatric disorders in individuals with intellectual disability is still unresolved. The present study compares the prevalence and pattern of psychiatric disorders in individuals with intellectual disability who were assessed on the ABC to have moderate and severe behavior problems and a matched…

Studies in Britain and the US indicate that 10-15% of people with mental retardation show challenging behaviour, like attacking others (aggression), self-injurious behaviour, destruction, and other difficult, disruptive or socially unacceptable acts. Most researchers indicate that challenging behaviour is more common among adolescents and young…