Purpose: Almost all epidemiologic studies estimating autism spectrum disorder (ASD) prevalence have focused on school-age children. This study provides the first population-based data on the prevalence and expression of ASD among adolescents in a large US metropolitan region. Methods: Active multiple source ASD surveillance of adolescents aged…

Recent research has suggested that people with autism spectrum disorder may be disproportionately at risk of substance use disorders. This study analyzed national-level Medicaid Claims data to compare substance use disorder prevalence among Medicaid enrollees with autism spectrum disorder (N = 388,426) and a random sample of enrollees without…

In 2022, the disability rate for persons aged 15 years and over in Canada was 27%, representing nearly 8 million people. Disability rates are shown to increase with age: 20.1% among youth aged 15 to 24 and 40.4% among seniors aged 65 and older. Additionally, while disability rates increased across all age groups (with the exception of seniors aged…

Autism spectrum disorder and attention deficit/hyperactivity disorder are neurodevelopmental disorders with high rates of co-occurrence. However, there is a dearth of large, nationally representative studies examining the prevalence of co-occurring autism spectrum disorder and attention deficit/hyperactivity disorder among children. The aim of…

This report is an overview of the postsecondary experiences of multiracial Latinx deafblind, deafdisabled, and deaf adults in the United States that draws from data from the American Community Survey (ACS).

Background: We examined differences in food selectivity by gender and parent race/ethnicity in children with intellectual disabilities. Method: A convenience sample of 56 children with intellectual disabilities was analysed. A modified Youth/Adolescent Food Frequency Questionnaire and a 3-day food record were used to measure child food refusal…

Children with complex behavioral profiles (e.g., ASD + ADHD) may experience delays in obtaining a final diagnosis. Low-resource or underrepresented groups may be at even greater risk for delayed diagnosis. We assessed the effect of sociodemographic factors, symptom complexity and co-occurring conditions, and identifier of first symptoms on…

This exploratory study used the Future of Families and Child Wellbeing Study (FFCWS) to compare the financial well-being of families of adolescents with and without autism. Recognizing the gap in autism research, which predominantly measures financial well-being through household income, this study employed a multidimensional approach, including…

Objective: The purpose of this study was to explore differences in oral health among students by military service status in postsecondary settings. Participants: Secondary data were obtained from the American College Health Association's 2011-2014 National College Health Assessment II. Method: Demographic characteristics of the study sample were…

Poor school connectedness (SC), defined as students' feelings of belonging, safety, and fairness at school, is a risk factor for negative psychosocial outcomes. Few studies have examined the specific relationship between SC and anxiety. This study examined the relation between SC and anxiety within a group of 114 clinically anxious youth (mean age…

Background: Oppositional Defiant Disorder (ODD) appears more prevalent among children with intellectual disabilities (ID) as compared to children with typical development. However, it remains unclear what drives this difference. Methods: Data from 70 youth with typical development (TD) and 20 youth with ID were drawn from (The Collaborative Family…

A retrospective data analysis using 2004-2014 Healthcare Cost and Utilization Project Nationwide Inpatient Sample was conducted to examine in-hospital mortality among adults with autism spectrum disorders in the United States compared to individuals in the general population. We modeled logistic regressions to compare inpatient hospital mortality…

The National Deaf-Blind Child Count is conducted each year to supplement OSEP's Federal Part C and Part B child counts, which include children as deaf-blind only when deaf-blindness is their single disability. In contrast, the National Deaf-Blind Child Count includes children whose disability is solely deaf-blindness, as well as those who have…

Autistic individuals may be at risk of premature mortality, and physical health comorbidity increases this risk; however, most studies fail to include older autistic adults or consider lifestyle-related factors that affect health. We developed an anonymous, online physical health survey. The final sample included n = 2368 individuals (mean age =…

New Zealand has few estimates of the prevalence of autism spectrum disorder and no national registry. The use of administrative data sources is expanding and could be useful in autism spectrum disorder research. However, the extent to which autism spectrum disorder can be captured in these data sources is unknown. In this study, we utilised three…