This report provides updated prevalence estimates for diagnosed autism spectrum disorder, intellectual disability, and other developmental delay among children 3-17 years from the 2019-2021 National Health Interview Survey, with differences in prevalence examined between years and by sex, age group, and race and Hispanic origin. Estimates are also…

Preliminary evidence from the Childhood Joint Attention Rating Scale (C-JARS; Mundy et al., 2017) suggests symptoms related to diminished joint attention and the spontaneous sharing of experience with others can be assessed with a parent-report measure in children and adolescents with autism. This study was designed to expand on the previous study…

Genetic tests, such as Fragile X and Chromosomal Microarray, are recommended as a standard of care during the evaluation of autism spectrum disorder (ASD) and other neurodevelopmental disorders. However, previous research demonstrates low rates of genetic testing. This study aimed to identify the rates of genetic testing and patient demographic…

Introduction: Mental health concerns have been noted to be highly prevalent for youth with intellectual disability (ID), with or without autism spectrum disorder (ASD). The purpose of the current study was to examine a Canadian sample of youth with ID, with or without ASD, to explore caregiver-reported percentages, predictors, and treatment…

Stuttering and other developmental disorders are known to affect more male than female children. The present study compared: (1) stuttering prevalence in males and females at discrete ages and (2) prevalence of coexisting developmental disorders in male and female children who stutter (CWS). Data were obtained from the National Health Interview…

The purpose of this study was to examine the primary and secondary color preferences of students with special needs as well as their color preference for an object regarding their disability types, school levels, and gender. The study employed a survey research design with quantitative methodology. It was conducted with the participation of 549…

Objective: Transition from school to early adulthood incurs many changes and may be associated with deterioration in general health in youth with autism. We aimed to investigate this. Method: The National Longitudinal Transitions Study-2 is a USA nationally representative sample of youth receiving special education services, aged 13-17 at wave 1,…

Background: Limited data exist on problematic sexual behaviour (PSB) in youth with developmental disabilities in South Korea. Method: Sixty-one parents of children with intellectual disabilities or autism spectrum disorder (aged 13-30) reported children's PSB and emotional, behavioural, cognitive, and interpersonal factors. The frequency of PSB in…

Adults with autism spectrum disorder and intellectual disability often do not engage in healthy levels of physical activity despite its many benefits. We conducted a randomized control trial to evaluate the effectiveness and feasibility of the Step It Up program, which used supported self-management strategies, on daily step counts, health…

The Interagency Autism Coordinating Committee (IACC) is a federal advisory committee that advises the Secretary of Health and Human Services (HHS) on issues related to autism spectrum disorder (ASD). It was established by the "Children's Health Act of 2000" (Public Law 106-310), reconstituted under the Combating Autism Act of 2006 (CAA;…