Comparisons between individuals with autism spectrum disorders and individuals with Down syndrome in adulthood

Inequities in medicaid home- and community-based services waiver enrollment among people with intellectual and/or developmental disabilities: A nationwide claims-based analysis

BACKGROUND

States use Medicaid 1915(c) waiver programs to enable access to home- and community-based services for people with intellectual and/or developmental disabilities (I/DD). However, enrollment rates and potential inequities are not well documented, impeding efforts to improve care access and quality for waiver program enrollees, especially for racially minoritized beneficiaries experiencing compounded barriers to services and supports.

OBJECTIVE

To characterize year-by-year 1915(c) waiver program enrollment among Medicaid-enrolled adults with I/DD from 2016 to 2019 and to analyze population-level inequities by type of I/DD and racial/ethnic group.

METHODS

Our data source was 2016-2019 Medicaid Transformed Medicaid Statistical Information System Analytic Files Demographic and Eligibility files for beneficiaries with Down syndrome, autism, and intellectual disability. We used generalized estimating equation linear models to estimate the associations of type of I/DD and racial/ethnic group with the probability of 1915(c) waiver program enrollment and reported (1) unadjusted estimates and (2) estimates adjusted for demographics with state and year fixed effects.

RESULTS

From 2016 to 2019, across all types of I/DD and racial/ethnic groups, unadjusted 1915(c) waiver program enrollment rates ranged from 40 to 60 % nationwide. We found modest growth in 1915(c) I/DD waiver program enrollment but persistent inequities over time. Compared to beneficiaries with intellectual disabilities, beneficiaries with autism were less likely to enroll while beneficiaries with Down syndrome were more likely. While some racial/ethnic groups had higher unadjusted mean enrollment, after adjustment, racially minoritized beneficiaries were 3.66-12.0 percentage points less likely to enroll compared to white non-Hispanic beneficiaries.

CONCLUSIONS

Given extensive waiting lists for 1915(c) waiver programs, Medicaid programs should evaluate existing enrollment and authorization processes and consider alternative HCBS program authorities.

Social competence as a predictor of adult outcomes in autism spectrum disorder

There is a wealth of literature characterizing social difficulties in autism spectrum disorder (ASD). However, little work has replicated longitudinal findings from typical development that adolescent social competence predicts positive adult outcomes in ASD. The current study examined social competence trajectories from 2 to 26 and the utility of three social competence measures collected in adolescence in predicting work, residential status, friendship, and romantic outcomes in a longitudinal cohort (n = 253) of ASD. Using group-based trajectory modeling, we identified two patterns of social competence development: a low trajectory characterized by slow linear gains throughout childhood and plateauing in adulthood, and a high trajectory characterized by steeper linear gains in childhood followed by decline in adulthood. Regression models indicated one social competence measure, Vineland Social-AE scores, significantly predicted employment, residential status, and friendships in adulthood. One other social competence measure, SSQ total scores, also significantly predicted friendship in adulthood. Only nonverbal IQ at 9 predicted the likelihood of having ever had a romantic relationship. These findings highlight the role of social competence in both atypical and typical development and suggest the social impairments associated with ASD do not necessarily impact all realms of social functioning equally.

Vocational Outcomes in ASD: An Examination of Work Readiness Skills as well as Barriers and Facilitators to Employment Identified by Autistic Adults

Little is known about work readiness skills among autistic adults. This study sought to address this by examining work readiness skills and their relation to vocational outcomes among 281 autistic young adults. It also examined perceived barriers and facilitators to employment as articulated by a subset of autistic adults. Results revealed a variegated work readiness profile. Stronger work readiness skills (particularly work style/adaptability) were associated with more favorable vocational outcomes. Autistic participants articulated both barriers and facilitators to employment related to the autism phenotype, job search/work readiness, and workplace education. These findings indicate the need for research on phenotype-driven vocational rehabilitation strategies as well as workplace psychoeducation/accommodations to support vocational outcomes for autistic adults.

Developing a Measure of Key Adult Outcomes in Adults with Developmental Disabilities: Conceptual Model and Item Generation of the REALS (Relationships, Employment, Autonomy, and Life Satisfaction)

Employment, social relationships, and autonomy are priorities to people with intellectual and developmental disabilities (IDDs). However, few validated measures exist to systematically assess these key adult outcomes in this population. This research includes first steps to develop self- and proxy report measures of life outcomes for adults with IDDs-the Relationships, Employment, Autonomy, and Life Satisfaction (REALS). A literature search identified existing adult outcome measures, and comparison of their domains informed initial conceptual model development. External consultants revised the model, and items were generated. Autistic adults (n = 15), adults with other IDDs (n = 7), caregivers of autistic adults (n = 13), and caregivers of adults with other IDDs (n = 10) completed in-depth cognitive interviews to assess comprehension of items and response categories, factors influencing how participants respond to items, and the inclusiveness of the item pool. A final conceptual model was generated with three subdomains (social relationships, employment, and autonomy), including assessment of life satisfaction within each domain. Cognitive interviews revealed that response set restructuring and item-level revisions were needed to capture the complexity of adult life and make the measure more accessible across a range of abilities. This study developed a conceptual model of relationships, work, and autonomy specific to adults with IDDs. Future work will involve collecting data from 800 + self-reporters with IDDs and 800 + caregivers of adults with IDDs to conduct psychometric analyses. Improving measurement in this area is critical to better understanding the needs of adults with IDDs and improving services available to them.

How have Participation Outcomes of Autistic Young Adults been Measured? A Scoping Review

Autistic young adults experience challenges participating in the workforce, post-secondary schooling, and living in the community. We examined how participation outcomes have been measured in autistic young adults. Articles (n = 113) were identified through database searches and citation tracking. Guided by current models in the literature, data were extracted for each measure of participation. Results include a description of the studies in the review, the extent to which participation across life situations has been addressed, and a critical analysis of the measures used to describe participation. While there is some breadth in the investigation of participation across diverse life situations, there is limited depth in what the measures capture and many measures used lack psychometric support.

The Ethics of Actually Helping People: Targeting Skill Acquisition Goals That Promote Meaningful Outcomes for Individuals with Autism Spectrum Disorder

As a field that predominately supports individuals with autism spectrum disorder (ASD), we have an ethical duty as behavior analysts to ensure that the goals we write and interventions we prescribe promote best outcomes across the lifespan. This is critical, given that as it stands now, outcomes in adulthood for individuals with ASD are poor in every area assessed. The Ethics Code for Behavior Analysts can be interpreted to provide support for teaching the right goals, the right way, with respect to inherent rights of those we serve, in order to help affect positive changes in these outcomes. The present article highlights ethical themes that are relevant in order to affect these changes that are supported by the Code, as well as actionable steps to take next. The aim is to provide a resource for practitioners to use in clinical practice and in making ethical decisions that will help to improve outcomes for individuals with autism in adulthood. In addition, recommendations are made about integrating these values and approaches in terms of training, supervision, advocacy, and research.

Exploring Caregiver Perceptions of Post-High School Employment Experiences Among Young Adults With Down Syndrome

This qualitative study explored employment experiences and perceived satisfaction of young adults with Down syndrome (DS) who recently exited high school, as reported by their caregivers (n = 101). We analyzed caregivers' open-ended responses about their young adults' type of employment (n = 52 were employed) and identified themes associated with reported satisfaction (for both employed and unemployed). Natural supports were key to caregiver satisfaction; few opportunities for paid, community-based employment and long waiting lists for formal services were related to caregiver dissatisfaction. Job fit (e.g., hours, responsibilities, location), socialization opportunities, and independence were related to caregiver and perceived young adult (dis)satisfaction. These findings highlight unmet service needs, including assistance with finding a job that is the right fit for the individual with DS.

Maternal perspectives: The needs of Saudi families of children with Down's syndrome

Down syndrome (DS) is a chromosomal condition that is affecting an increasing number of infants born in Saudi Arabia. This study investigates the needs of families with children with DS in Saudi Arabia from mothers' perspectives and in a cultural and religious context. An exploratory qualitative research design was used, and semi-structured interviews were conducted with 14 mothers of children with DS. Interview data were thematically analyzed. The most important need was found to be financial or tangible support. An increase in benefits or monthly financial allowances and social security insurance would address these concerns. Societal support is also needed; mothers want DS to be perceived differently and require more support, including better rehabilitation and education services. Informational support is needed to improve the conditions of children with DS. Recommendations for improving the quality of life of children with DS are discussed.

Determining Factors of Psychosocial Wellbeing Among People With Disabilities During the COVID-19 Pandemic: Mediating Role of Social Support

This study aimed to understand how the COVID-19 pandemic impacted the stress levels and life satisfaction of individuals with disabilities and what role social support plays in mitigating these impacts. Data from individuals with disabilities (n= 600) were extracted from a larger international cross-sectional survey study. Regression analyses were conducted to examine how personal and environmental factors contributed to stress levels and life satisfaction changes during the pandemic. Mediation analyses were used to test whether social support mediated the association between stress level and life satisfaction. The negative impact of the pandemic, having a psychiatric disability, being a female, and being younger significantly predicted stress levels. Moreover, the negative impact of the pandemic and stress levels significantly predicted life satisfaction. The relationship between stress levels and life satisfaction was mediated by social support from significant others and friends. There is an urgent need to provide training and education for healthcare professionals, families, and caregivers on the basic aspects of mental health care, developing time-limited and culturally-sensitive mental health interventions, and strategies for expanding the social support system for the population. Broad dissemination of effective therapeutic strategies is crucial in mitigating the negative psychosocial impact of the pandemic.

Elevated symptoms of executive dysfunction predict lower adaptive functioning in 3-year-olds with autism spectrum disorder

Executive functioning (EF) deficits co-occur frequently with autism spectrum disorder (ASD) and have a long-term detrimental impact on quality of life of children and their families. Timely identification of risk for EF vulnerabilities may hasten access to early intervention and alleviate their long-term consequences. This study examines (1) if EF deficits are elevated in toddlers with ASD compared to nonautistic siblings of children with ASD, typically developing (TYP) toddlers, and toddlers with atypical developmental presentation; and (2) if EF deficits have a detrimental effect on adaptive functioning in ASD. Participants were recruited between September 2014 and October 2019 and included 73 toddlers with ASD, 33 nonautistic siblings of children with ASD, 35 toddlers with atypical development, and 28 TYP toddlers matched on chronological age (M = 39.01 months, SD = 3.11). EF deficits were measured using the BRIEF-P; adaptive skills were measured using the VABS-II. Whenever appropriate, analyses were controlled for MSEL verbal and nonverbal developmental quotient, ADOS-2 autism severity scores, and sex. Analyses revealed that toddlers with ASD exhibited elevated BRIEF-P scores across all domains compared to each of the three comparison groups. Higher BRIEF-P scores were associated with lower adaptive social, communication, and daily living skills while controlling for symptom severity, verbal and nonverbal functioning, and sex. In conclusion, marked vulnerabilities in EF are already present in 3-year-old toddlers with ASD and are predictive of the level of adaptive functioning in ASD. EF vulnerabilities in toddlers should be targeted for intervention to improve long-term outcomes in ASD. LAY SUMMARY: Many children with autism experience vulnerabilities in executive functioning (EF), which may include challenges with inhibition, working memory, cognitive flexibility, and planning. The study shows that these vulnerabilities can already be detected at age three and that their presence is linked with lower social, communication, and daily living skills. Screening children with ASD for EF challenges and helping those who have difficulties may improve their long-term outcomes.

College as a Developmental Context for Emerging Adulthood in Autism: A Systematic Review of What We Know and Where We Go from Here

Autistic individuals often struggle to successfully navigate emerging adulthood (EA). College is an increasingly common context in which individuals learn and hone the necessary skills for adulthood. The goal of this paper is to systematically review and assess the existing research on college as a context of EA development in autistic individuals, particularly in terms of understanding whether and how this context might be critically different for those who are typically developing or developing with other disabilities. Our findings indicate that ASD college students report feeling prepared academically, but exhibit weaknesses in daily living and social skills. Interventions largely focus on social skills, and rarely evaluate outcomes relevant to college success or longer-term emerging adulthood independence. We conclude with hypotheses and recommendations for future work that are essential for understanding and supporting ASD students as they navigate potentially unique challenges in college and their transition to independence during EA.

Post-High School Transition Outcomes for Young Adults With Down Syndrome

There is limited available research on the post-high school outcomes of young adults with Down syndrome (DS). The purpose of this study, therefore, was to characterize employment, community-based living, and community engagement outcomes and their correlates among young adults with DS who recently transitioned out of high school. Caregivers (n = 100) of young adults with DS who exited high school within the past 5 years completed an online survey. Approximately half of the individuals with DS were working in some capacity; almost all were living with caregivers. Individuals with DS were engaging in a variety of community activities each week. Adaptive functioning was related to both employment and community engagement. Parent involvement in transition planning was also related to community engagement.

Healthcare service use patterns among autistic adults: A systematic review with narrative synthesis

LAY ABSTRACT

Autistic adults often have complex healthcare needs due to factors like having other health conditions, sensory sensitivities, and limited access to healthcare providers who are trained to provide care for them. All these factors may influence the healthcare services that autistic adults use. In this review, we searched six electronic research databases to gather the most recent evidence about how often autistic adults use five important healthcare services (the emergency department, hospitalization, outpatient mental health, preventive services, and primary care) compared to populations of non-autistic adults. A total of 16 articles were ultimately included in this review. Most articles found that autistic adults had equal or higher use of healthcare services than non-autistic adults. Autistic adults frequently used the emergency department and hospital. This may indicate that routine outpatient care in the community is not meeting their needs. Our findings show the importance of improving care at this level for autistic adults to reduce overuse of the emergency department (in this article referred to as ED) and hospital.

Impact of Working Together for adults with autism spectrum disorder: a multifamily group intervention

BACKGROUND

Adults with autism spectrum disorder (ASD) have lower engagement in their communities, higher rates of unemployment/underemployment, and continued difficulties with challenging behavior compared to their neurotypical peers. Multi-family psychoeducation emphasizes education and problem-solving with the goal of improving these outcomes for the individual with the disability.

METHODS

Using a randomized waitlist control design, the present study evaluated a multi-family group psychoeducation intervention, Working Together, for adults on the autism spectrum without intellectual disability (n = 40). Five waves of data were collected at 3-month intervals. In this design, families in the intervention condition participated in intervention during the 6 months between baseline and time 3 data collection; the waitlist control condition received the intervention immediately after the time 3 data collection. We compared these two conditions, intervention group (n = 20) vs waitlist control group (n = 20), on key outcomes for the adults with ASD: engagement in work-related activities, engagement in meaningful activities, and behavior problems.

RESULTS

Results indicated medium to large effect sizes associated with the Working Together intervention across key outcomes, including adults on the spectrum experiencing significant increases in meaningful activities and decreases in internalizing problems. Although increases in work-related activities were not statistically significant, an observed one-half of a standard deviation difference from before to after the intervention indicated clinically significant change. We also found maintenance of the treatment effect through 6 months post-treatment for the intervention group and replication of the treatment effect within the control group after they received the intervention.

CONCLUSION

Working Together is a promising multi-family group psychoeducation intervention designed to improve functioning during adulthood. These findings highlight the need for more intervention services research during adulthood and specifically the need for family-centered supports.

Characterizing the Richness of Maternal Input for Word Learning in Neurogenetic Disorders

Promoting language abilities, including early word learning, in children with neurogenetic disorders with associated language disorders, such as Down syndrome (DS) and fragile X syndrome (FXS), is a main concern for caregivers and clinicians. For typically developing children, the quality and quantity of maternal language input and maternal gesture use contributes to child word learning, and a similar relation is likely present in DS and FXS. However, few studies have examined the combined effect of maternal language input and maternal gesture use on child word learning. We present a multidimensional approach for coding word-referent transparency in naturally occurring input to children with neurogenetic disorders. We conceptualize high-quality input from a multidimensional perspective, considering features from linguistic, interactive, and conceptual dimensions simultaneously. Using case examples, we highlight how infrequent the moments of word-referent transparency are for three toddlers with DS during play with their mothers. We discuss the implications of this multidimensional framework for children with DS and FXS, including the clinical application of our approach to promote early word learning for these children.

A Meta-Analysis of Single-Case Research on Applied Behavior Analytic Interventions for People With Down Syndrome

This systematic review evaluates single-case research design studies investigating applied behavior analytic (ABA) interventions for people with Down syndrome (DS). One hundred twenty-five studies examining the efficacy of ABA interventions on increasing skills and/or decreasing challenging behaviors met inclusion criteria. The What Works Clearinghouse standards and Risk of Bias in N-of-1 Trials scale were used to analyze methodological characteristics, and Tau-U effect sizes were calculated. Results suggest the use of ABA-based interventions are promising for behavior change in people with DS. Thirty-six high-quality studies were identified and demonstrated a medium overall effect. A range of outcomes was targeted, primarily involving communication and challenging behavior. These outcomes will guide future research on ABA interventions and DS.

Personalized AAC Intervention to Increase Participation and Communication for a Young Adult with Down Syndrome

Many adults with Down syndrome (DS) experience difficulty with speech production, and intelligibility challenges and communication breakdowns are common. Augmentative and alternative communication (AAC) intervention can provide important supports for persons with these complex communication needs, but must be customized to address the goals, strengths, and needs of the individual. This article provides a description of a personalized AAC intervention for a young adult with DS whose speech was frequently unintelligible. The AAC intervention made use of a video visual scene display (VSD) approach, and was investigated in two separate studies in two key community settings: An inclusive post-secondary education program (a single-case reversal ABAB design), and a community shopping activity (a non-experimental AB case study design). The participant demonstrated sharp increases in successful communication and participation in both settings following the introduction of the video VSD, and both the participant and key stakeholders viewed the intervention positively. The results provide preliminary evidence that personalized AAC intervention, including the use of a video VSD approach, can provide important supports for communication and participation in community settings for adults with DS and complex communication needs.

A Meta-analysis of Outcome Studies of Autistic Adults: Quantifying Effect Size, Quality, and Meta-regression

Longitudinal studies have generally reported poor outcomes in adulthood for the majority of individuals (c.50–60%) with autism. Several factors putatively predict outcome (e.g. IQ), but findings remain mixed. This paper presents an updated meta-analysis of autism outcome studies and extends previous findings with additional analyses (including meta-regression). A total of 4088 records was screened and 18 studies, involving 1199 individuals, were included in the quantitative analysis. Estimated percentages indicated that 20.0% of participants were rated as having a good outcome, 26.6% a fair outcome, and 49.3% a poor outcome. Meta-regression indicated that lower IQ in adulthood was predictive of poor outcome; other meta-regression models did not survive correction for multiple comparisons. Overall, outcomes for autistic people are on average poor, and higher IQ appears to be protective against having a poor outcome. The limitations of current constructs of outcome are discussed.

Trajectories of Change in the Behavioral and Health Phenotype of Adolescents and Adults with Fragile X Syndrome and Intellectual Disability: Longitudinal Trends Over a Decade

This study examined trajectories of daily living skills, behavior problems, body mass index (BMI), and health conditions spanning nearly a decade in adolescents and adults with fragile X syndrome (N = 134; age range at study end = 19-49 years), examining influences of sex and autism spectrum disorder (ASD) symptoms. Hierarchical linear modeling revealed early increases in daily living skills, with decreases at older ages. Behavior problems became less severe over time, with some increases at older ages. Individuals gained weight and had increasing health problems over time. Fewer ASD symptoms were associated with greater daily living skills and fewer behavior problems at study start. This study offers some of the first prospective quantitative analyses of behavioral and health life course trajectories in FXS.

Interventions based on early intensive applied behaviour analysis for autistic children: a systematic review and cost-effectiveness analysis

BACKGROUND

Early intensive applied behaviour analysis-based interventions are intensive interventions for autistic children that are often delivered on a one-to-one basis for 20-50 hours per week.

OBJECTIVES

To evaluate the clinical effectiveness and cost-effectiveness of early intensive applied behaviour analysis-based interventions for autistic children, based on current evidence.

METHODS

A systematic review and individual participant data meta-analysis were conducted to evaluate the clinical effectiveness of an early intensive applied behaviour analysis-based intervention for autistic children. An economic analysis included a review of existing analyses and the development of a new model.

RESULTS

Twenty studies were included in the clinical review. Individual participant data were retrieved from 15 of these studies. Results favoured the interventions when assessing adaptive behaviour after 2 years compared with treatment as usual/eclectic interventions (mean difference 7.00, 95% confidence interval 1.95 to 12.06). In analyses of cognitive ability (intelligence quotient), results favoured the interventions by approximately 10 points after 1 year (mean difference 9.16, 95% confidence interval 4.38 to 13.93) and 2 years (mean difference 14.13, 95% confidence interval 9.16 to 19.10). Evidence for other outcomes was limited and meta-analyses were generally inconclusive. There was no evidence that the effect of the interventions varied with characteristics of the children, but data were limited. Adopting a £30,000 per quality-adjusted life-year threshold, the results of the cost-effectiveness analysis indicate that early intensive applied behaviour analysis-based interventions would need to generate larger benefits or cost savings to be cost-effective. Adopting a public sector perspective and making pessimistic assumptions about long-term effects, the incremental cost-effectiveness ratio for early intensive applied behaviour analysis-based therapy compared with treatment as usual is £189,122 per quality-adjusted life-year. When optimistic assumptions are made, the incremental cost-effectiveness ratio is £46,768 per quality-adjusted life-year. Scenario analyses indicated that these interventions can potentially be cost-effective if long-term improvements persist into adulthood, or if they have significant impact on educational placement. Care should be taken when interpreting these scenarios owing to the limited data.

LIMITATIONS

All included studies were at risk of bias, there was substantial heterogeneity and effects varied considerably across studies. The effect of intervention on autism symptom severity, language development and school placement remains uncertain because of the limited data. The long-term effects are unclear owing to a lack of follow-up data.

CONCLUSIONS

This review found limited evidence that early intensive applied behaviour analysis-based interventions may improve cognitive ability and adaptive behaviour, but the long-term impact of the interventions remains unknown. The economic analysis is constrained by the limited effectiveness evidence, but suggests that these interventions are unlikely to be cost-effective unless clear long-term benefits, or a substantial change in which schools children attend, can be identified.

FUTURE WORK

Further studies into the effectiveness of early intensive applied behaviour analysis-based interventions may be warranted if they include well-defined, alternative interventions as comparators and collect relevant outcomes. Consideration should be given to future studies that not only address whether or not early intensive applied behaviour analysis-based interventions are clinically effective, but also aim to identify which components of early intensive applied behaviour analysis-based interventions might drive effectiveness.

STUDY REGISTRATION

This study is registered as PROSPERO CRD42017068303.

FUNDING

This project was funded by the National Institute for Health Research (NIHR) Health Technology Assessment programme and will be published in full in Health Technology Assessment; Vol. 24, No. 35. See the NIHR Journals Library website for further project information.

Adaptive Behavior in Youth with Autism Spectrum Disorder: The Role of Flexibility

Cognitive and behavioral flexibility are important predictors of adaptive behavior in school-age autistic youth. While prior research has utilized broad measures of flexibility, the current study uses the multi-dimensional Flexibility Scale-Revised to examine which specific flexibility skills relate to adaptive functioning. Through parent-report measures on 216 autistic youth, flexibility explained 22.2% of variance in adaptive socialization skills (p < 0.001). Specifically, Social Flexibility accounted for significant variance in adaptive socialization skills, while Transitions/Change approached significance. In exploratory analyses, flexibility explained 11.5% of variance in Communication skills (p < 0.001). This pattern remained after controlling for co-occurring ADHD symptoms. The current study helps to refine the relationship between flexibility and adaptive behavior, which may ultimately help to inform more targeted interventions.

Aging in Autism Spectrum Disorder

Most research on autism spectrum disorder (ASD) has focused on younger individuals, but there is increasing awareness that more must be known about the clinical needs and outcomes of older adults with ASD. This article reviews what is known about barriers to recognition in the elderly, the prevalence of ASD over the lifespan, outcomes in adulthood in comparison to the general population, co-occurring psychiatric diagnoses, and healthcare needs in this population.

Mortality in individuals with autism spectrum disorder: Predictors over a 20-year period

Research has shown that individuals with autism spectrum disorder have higher rates of health problems throughout childhood, adolescence, and adulthood, and that this may result in elevated risk of early mortality. This study reported the rate, timing, and causes of death in a large community-based cohort of adolescents and adults with autism spectrum disorder (n = 406) over a 20-year period (1998-2018) and identified predictors of mortality. Over this period, 6.4% of individuals died at an average age of 39 years. Causes of death included chronic conditions (such as cancer and heart disease), accidents (such as choking on food and accidental poisoning), and health complications due to medication side effects. Even after controlling for age and health status, significant predictors of mortality were early childhood levels of impairments in social reciprocity and high levels of functional impairments at the start of the study period. The results suggest the importance of social engagement and functional self-sufficiency across the life course, as well as adequate access to health care for individuals with autism spectrum disorder.

Four Social Brain Regions, Their Dysfunctions, and Sequelae, Extensively Explain Autism Spectrum Disorder Symptomatology

Autism spectrum disorder (ASD) is a challenging neurodevelopmental disorder with symptoms in social, language, sensory, motor, cognitive, emotional, repetitive behavior, and self-sufficient living domains. The important research question examined is the elucidation of the pathogenic neurocircuitry that underlies ASD symptomatology in all its richness and heterogeneity. The presented model builds on earlier social brain research, and hypothesizes that four social brain regions largely drive ASD symptomatology: amygdala, orbitofrontal cortex (OFC), temporoparietal cortex (TPC), and insula. The amygdala's contributions to ASD largely derive from its major involvement in fine-grained intangible knowledge representations and high-level guidance of gaze. In addition, disrupted brain regions can drive disturbance of strongly interconnected brain regions to produce further symptoms. These and related effects are proposed to underlie abnormalities of the visual cortex, inferior frontal gyrus (IFG), caudate nucleus, and hippocampus as well as associated symptoms. The model is supported by neuroimaging, neuropsychological, neuroanatomical, cellular, physiological, and behavioral evidence. Collectively, the model proposes a novel, parsimonious, and empirically testable account of the pathogenic neurocircuitry of ASD, an extensive account of its symptomatology, a novel physiological biomarker with potential for earlier diagnosis, and novel experiments to further elucidate the mechanisms of brain abnormalities and symptomatology in ASD.

More Than IQ: Executive Function Explains Adaptive Behavior Above and Beyond Nonverbal IQ in Youth With Autism and Lower IQ

Adaptive behavior is a critical metric for measuring outcomes in those with autism spectrum disorder (ASD). Executive function skills predict adaptive behavior in youth with ASD with average or higher IQ; however, no study has examined this relationship in ASD with lower IQ (IQ ≤ 75). The current study evaluated whether executive function predicted adaptive behavior in school-age youth with ASD with lower IQ, above and beyond nonverbal IQ. We examined adaptive behavior and executive function through informant report on 100 youth with ASD with lower IQ. Executive function skills explained variance in adaptive social and communication domains, beyond nonverbal IQ; monitoring skills played a significant role. This research suggests that malleable skills like executive function may contribute to functional outcomes in this population.

Attention-Deficit/Hyperactivity Disorder Symptoms Are Associated With Lower Adaptive Behavior Skills in Children With Autism

OBJECTIVE

To investigate the predictive power of comorbid attention-deficit/hyperactivity disorder (ADHD) symptoms on adaptive behavior skills in children who have an autism specrum disorder (ASD) diagnosis.

METHOD

This case-control study recruited 347 children from specialty clinics, primary care, and the community. Linear regression was used to test whether ADHD Rating Scale, Fourth Edition, scores of autistic children associated with poorer adaptive behavior scores, after controlling for the effects of age, intelligence, sex, and ASD symptom severity. Adaptive behaviors were measured with the Vineland Adaptive Behavior Scales, Second Edition. Subsequent analyses tested this relation in a subset of the ASD sample with subclinical ADHD symptoms (n = 179) and another with teacher ratings (n = 153). Prior relations between age with adaptive behaviors and ADHD symptoms were replicated and age was explored as a moderator.

RESULTS

ADHD symptoms predicted poor adaptive behavior scores in the full ASD sample (caregiver ratings, ΔR² = 0.033-0.119; teacher ratings, ΔR² = 0.113-0.163) and in the subset with subclinical ADHD symptoms (caregiver ratings, ΔR²= 0.023-0.030; teacher ratings, ΔR² = 0.097-0.159) after controlling for confounds. Age correlated negatively with ADHD symptoms (r = -0.21) and adaptive behaviors (-0.17 < r < -0.39) in the full ASD sample. Age did not moderate the effect of ADHD symptoms on adaptive behaviors.

CONCLUSION

ADHD symptoms predict poorer adaptive behavior for autistic children across settings, even for children with subclinical co-occurring ADHD symptoms. Findings support a Research Domain Criteria framework that behavioral impairments and functional outcome measures exist along a continuum.

'Is it better not to know certain things?': views of women who have undergone non-invasive prenatal testing on its possible future applications

Non-invasive prenatal testing (NIPT) is at the forefront of prenatal screening. Current uses for NIPT include fetal sex determination and screening for chromosomal disorders such as trisomy 21 (Down syndrome). However, NIPT may be expanded to many different future applications. There are a potential host of ethical concerns around the expanding use of NIPT, as examined by the recent Nuffield Council report on the topic. It is important to examine what NIPT might be used for before these possibilities become consumer reality. There is limited research exploring views of women on possible future uses of NIPT, particularly those of women who have undergone NIPT. In this study, we examined the views of women who undertook NIPT previously on the acceptability of and interest levels in using NIPT for a number of current and possible future applications. These included several medical conditions encompassing psychiatric, neurodevelopmental and adult-onset conditions as well as non-medical traits such as intelligence. One thousand women were invited to participate and 235 eligible surveys were received. Women generally reported an interest in using NIPT for medical conditions that severely impacted quality of life and with an onset earlier in life and stressed the importance of the accuracy of the test. Concerns were raised about the use of NIPT for non-medical traits. Respondents indicated that termination of pregnancy was not their only reason for testing, particularly in the case of sex. These results can further inform the ethical debate around the increasing integration of NIPT into healthcare systems.

Friendships and social participation as markers of quality of life of adolescents and adults with fragile X syndrome and autism

Friendships and social participation are key domains of quality of life for individuals with intellectual disabilities. This study examined the friendships, social and recreational activities, and family social networks of individuals with intellectual disabilities from two distinct diagnostic groups: individuals diagnosed with fragile X syndrome (n = 81) compared with those diagnosed with autistic disorder (n = 226). Within each diagnostic group, individuals in two developmental stages were compared: adolescence and adulthood. Quality of life in friendships and social participation domains was notably low for individuals with fragile X and those with autism. Individuals with fragile X had more friendships and a less negative social impact on the family than individuals with autism. Across both groups, adolescents spent less time with friends and neighbors, and more time in exercising, than did adults.

Comparing differences in support needs as perceived by parents of adult offspring with down syndrome, autism spectrum disorder and cerebral palsy

BACKGROUND

Parents often face many barriers when taking care of their offspring with disabilities. In childhood, support needs vary with families of children with Down syndrome often reporting less caregiving challenges. However, it is unclear whether support needs vary in adulthood. This study compared parents of adults with Down syndrome (DS), autism spectrum disorder (ASD) and cerebral palsy (CP) regarding support needs of their offspring with intellectual and developmental disabilities (IDD) and their families.

METHOD

Data were collected via a national survey in the United States with 189 parents of adults with IDD.

RESULTS

Across the quantitative and qualitative analyses, parents of adults with DS (versus CP and ASD) reported significantly greater recreational, natural supports, more formal services and less future planning barriers.

CONCLUSION

The results indicate that the DS advantage may persist in adulthood regarding support needs. More research is needed to understand different types of support needs.

An assessment of health, social, communication, and daily living skills of adults with Down syndrome

Adults with Down syndrome (DS) are surviving longer, yet data delineating life skills are lacking. As providers are encouraged to provide a "balanced" description of DS to family members/caregivers, more quantitative data are required to accurately describe the abilities and potential of adults with DS. This study assessed health, social, communication, and daily living skills of adults with DS to describe the range of abilities and to show how increasing age contributes to functional abilities. Caregivers of an adult with DS 20 years of age or older participated in an online questionnaire. Descriptive statistics and scores from scales assessed relationships between the number of health issues reported and functional abilities, and how the abilities changed as age increased. Of 188 participants, 157 completed the survey with partial results included. Communication, independence, and social activity scores were compared to the number of congenital and non-congenital health issues reported. Linear regression results showed those with more health issues were significantly less likely to be independent and social. However, only current health issues affected communication skills. No significant correlation occurred between the number of congenital abnormalities and scores for independence/life skills as an adult. T-test by age group found decreasing abilities after 40 years of age. In conclusion, quantitative data and information from this study is beneficial for providers in order to describe the potential for an individual with DS and to assist caregivers to plan accordingly for the future of their adult with DS.

Transitioning Together: A Multi-family Group Psychoeducation Program for Adolescents with ASD and Their Parents

Currently there are few evidence-based programs available for families of individuals with ASD during the transition to adulthood. The present study provided a preliminary evaluation of a multi-family group psychoeducation intervention using a randomized waitlist control design (n = 41). Families in the intervention condition participated in Transitioning Together, an 8-week program designed to reduce family distress and improve social functioning for adolescents. Findings indicated significant improvements in parental depressive symptoms and problem solving from pre- to post-intervention for parents in the intervention condition but not for parents in the control condition. Social interactions also improved for youth in the intervention condition relative to controls. Parents reported satisfaction with the program and particularly valued the opportunity to interact with other families.

Mid-life social outcomes for a population-based sample of adults with ASD

Adults with autism spectrum disorders (ASD) fall short of social outcomes of non-ASD peers in mid-life, as documented by currently published research. The aim of the current study was to extend what is known about social functioning, employment, independent living, and use of social services by examining details of the current life status for a population-based sample of adults with ASD (mean age = 35.5 years, range = 22.2-51.4). We collected outcome data via direct assessment and informant report for 169 individuals. Three-fourths of the sample had cognitive abilities in the intellectually disabled range. Social functioning outcomes, as a single measure, mirror those reported previously for other samples, including samples with a high proportion of individuals with normal range intellectual abilities, with 20% achieving the most independent outcomes and 46% requiring high levels of support across most life areas. Participant subgroups who achieved maximal outcomes represented a range of social and intellectual abilities for several outcome metrics. Participants used high levels of public and private supports, yet specific areas of clear, unmet need were also identified. Autism Res 2018, 11: 142-152. © 2017 International Society for Autism Research, Wiley Periodicals, Inc.

LAY SUMMARY

This paper describes the social functioning outcomes for 169 adults with autism spectrum disorders in mid-life. Adult participants spanned the full range of functional and cognitive ability levels, with over 75% functioning in the cognitively impaired range. While summary descriptions of outcomes for this sample were similar to those reported for other groups of adults, this report provides detailed information regarding employment outcomes, social relationships, leisure activities, participation in the community, residential situations, public service use, and involvement with law enforcement.

Transitioning Together: A Multi-family Group Psychoeducation Program for Adolescents with ASD and Their Parents

Currently there are few evidence-based programs available for families of individuals with ASD during the transition to adulthood. The present study provided a preliminary evaluation of a multi-family group psychoeducation intervention using a randomized waitlist control design (n = 41). Families in the intervention condition participated in Transitioning Together, an 8-week program designed to reduce family distress and improve social functioning for adolescents. Findings indicated significant improvements in parental depressive symptoms and problem solving from pre- to post-intervention for parents in the intervention condition but not for parents in the control condition. Social interactions also improved for youth in the intervention condition relative to controls. Parents reported satisfaction with the program and particularly valued the opportunity to interact with other families.

Cortisol profiles differentiated in adolescents and young adult males with fragile X syndrome versus autism spectrum disorder

BACKGROUND

Fragile X syndrome (FXS) and non-syndromic autism spectrum disorder (ASD) are distinct disorders with overlapping behavioral features. Both disorders are also highly associated with anxiety with abnormal physiological regulation implied mechanistically. Some reports suggest atypical hypothalamus-pituitary-adrenal (HPA) axis function, indexed via aberrant cortisol reactivity, in both FXS and non-syndromic ASD. However, no study has compared cortisol reactivity across these two disorders, or its relationship to ASD symptom severity.

METHODS

Cortisol reactivity (prior to and following a day of assessments) was measured in 54 adolescent/young adult males with FXS contrasted to 15 males with non-syndromic ASD who had low cognitive abilities.

RESULTS

Greater ASD symptom severity was related to increased cortisol reactivity and higher levels at the end of the day, but only in the non-syndromic ASD group. Elevated anxiety was associated with increased HPA activation in the group with FXS alone.

CONCLUSIONS

Taken together, findings suggest a unique neuroendocrine profile that distinguishes adolescent/young adult males with FXS from those with non-syndromic ASD. Severity of ASD symptoms appears to be related to cortisol reactivity in the non-syndromic ASD sample, but not in FXS; while anxiety symptoms are associated with HPA activation in the FXS sample, but not in ASD despite a high prevalence of ASD, anxiety and physiological dysregulation characteristic in both populations.

Factors affecting dance exercise performance in students at a special needs school

BACKGROUND

In Japan, dance exercise has been introduced as a compulsory element of health and physical education, but there is a considerable discrepancy in the levels of performance among students with intellectual disability (ID) at special needs schools. The aim of this study was therefore to identify the factors affecting the performance of dance exercise in students with ID.

METHODS

A 4 month dance exercise program was implemented for junior high school students at a special needs school, and the performance of 32 students at 22 sessions was assessed quantitatively according to calorie use during exercise and performance proficiency score. The measures were compared according to gender, age, body mass index, diagnosis, and development quotient (DQ) score.

RESULTS

Performance in many students improved with repetition and reached the highest attainment level at around the third month. Male gender and older age had a significant positive impact on calorie use, whereas diagnosis of Down syndrome and higher DQ score had a significant positive impact on proficiency score. Four students with poor performance were all female students with autism.

CONCLUSION

This study provides some possible explanations for differences in the levels of dance performance among students with ID.

Employment and choice-making for adults with intellectual disability, autism, and down syndrome

BACKGROUND

Adults with disabilities are employed at a significantly lower rate than adults without disabilities. Of adults with disabilities in the workforce, more individuals work in a facility setting rather than a community setting, despite efforts to improve community inclusion. Choice-making has been proposed as a predictive factor for employment for individuals with disabilities.

AIMS

The purpose of this research was to examine the current state of employment for three groups of adults with intellectual disability (ID): individuals with autism spectrum disorder (ASD), individuals with Down syndrome (DS), and individuals with idiopathic ID. Choice-making and its relation to improved employment outcomes was explored.

METHODS

This study used National Core Indicator's Adult Consumer Survey datasets from years 2011-2012 and 2012-2013. Factor analyses revealed latent variables from six choice-making questions in the Adult Consumer Survey. Ordinal logistic regression was used to identify factors related to employment status.

RESULTS

Adults with DS had the highest rates of paid community jobs, but adults with ID had the highest rates of choice-making. ID severity level and short-term choice-making had the greatest effects on employment status in all three groups.

CONCLUSIONS

Employment rates remain low despite national efforts to find jobs for people with disabilities. Choice-making is a unique factor that was found to be associated with employment status and provides a target for interventions to increase employability.

A systematic review and meta-analysis of the long-term overall outcome of autism spectrum disorders in adolescence and adulthood

OBJECTIVE

A systematic review and meta-analysis of studies reporting on the overall outcome in terms of a global measure of adjustment in children with autistic disorders followed up in adolescence and adulthood.

METHOD

PubMed, PsycINFO, and EMBASE were systematically searched on 3rd of August 2015. Included studies were analyzed using random-effects models estimating event rates (%) and 95% confidence intervals (95%CI).

RESULTS

From 4350 records identified in the search, 15 studies covering 12 unique samples and a total of N = 828 individuals with autistic disorders were included in the analyses. An estimated 19.7% (95%CI: 14.2-26.6) had a good outcome, 31.1% (95%CI: 23.2-40.4%) a fair outcome, and 47.7% (95%CI: 36.6-59.0) a poor outcome. The meta-analysis showed strong evidence for heterogeneity. The subtype of childhood autism is a significant moderating factor on the risk of having a poor outcome at follow-up, whereas age at follow-up showed statistically significant but inconsistent associations with outcome status.

CONCLUSION

The long-term outcome of almost half of all individuals with autistic disorders is poor. The subtype of autism in childhood may be a predictor for specific long-term outcomes, but in general, little is known about the pathways and predictors.

Fragile X syndrome: economic burden and health-related quality of life of patients and caregivers in France

BACKGROUND

Fragile X syndrome (FXS) is the main hereditary cause of intellectual disability. Although the associated burden appears to be considerable, to date no study has comprehensively assessed the cost incurred because of FXS, including its specific impact on health-related quality of life and the burden on caregivers using standardised quantitative tools. The aim of this article is to provide data in order to increase awareness of the repercussions of FXS on patients and caregivers as well as on the health and social care systems in France.

METHODS

A retrospective cross-sectional study was carried out on 145 patients recruited through Le Goëland X-Fragile and Mosaïques, the French FXS patient associations. Data on their demographic characteristics and resource use were obtained from an online questionnaire, and costs were estimated by a bottom-up approach. The EQ-5D health questionnaire was used to measure patients' and caregivers' health-related quality of life. Perceived burden of care was measured using the Zarit Caregiver Burden Interview. The Barthel index, a non-utility-based assessment, was used to measure patients' level of dependence.

RESULTS

The annual total direct cost of FXS was estimated at €25 800 per patient. The main contributors were informal care provided by the main caregiver (€10 500) and social services (€8400). Healthcare costs, estimated at €2700, represented only a minor share. Mean EQ-5D utility scores were 0.49 for patients and 0.75 for caregivers. The mean burden for caregivers as measured by the Zarit Caregiver Burden Interview was 39.9.

CONCLUSIONS

Fragile X syndrome requires significant resources that are mainly of a non-medical nature and are higher for children than for adults. Compared with related diseases, it constitutes a particularly high burden for caregivers. Using a bottom-up approach and a wide range of standardised measures, this study underscores the need for greater awareness of the burden of FXS as well as an assessment of new and existing interventions to address it.

Families supporting a child with intellectual or developmental disabilities: the current state of knowledge

This IASSIDD Position Paper provides a concise authoritative summary of (i) existing scientific knowledge regarding the situation, challenges and wellbeing of families that include a child with intellectual and/or developmental disabilities, and (ii) priorities for future research. IASSIDD (www.iassidd.org) is the leading global organisation for researchers and research centres that seek to improve the understanding of and improve the lives of people with intellectual or developmental disabilities, their families and those who support them. The paper and the recommendations it contains have been developed through an iterative process led by IASSIDD’s Families Special Interest Research Group (SIRG). During this process, all members of the Families SIRG and all members of IASSIDD’s ruling council have had the opportunity to comment on drafts of this paper. The final Position Paper was adopted by the Council of IASSIDD on 9 July 2012.

Evaluating the appropriateness of a new computer-administered measure of adaptive function for children and youth with autism spectrum disorders

The Pediatric Evaluation of Disability Inventory-Computer Adaptive Test is an alternative method for describing the adaptive function of children and youth with disabilities using a computer-administered assessment. This study evaluated the performance of the Pediatric Evaluation of Disability Inventory-Computer Adaptive Test with a national sample of children and youth with autism spectrum disorders aged 3-21 years. Parents (n = 365) completed an online survey that included demographics, the Social Communication Questionnaire, and the Pediatric Evaluation of Disability Inventory-Computer Adaptive Test Social/Cognitive, Daily Activities, and Responsibility domains. Item response theory analysis confirmed items in each domain fit a unidimensional model and few items misfit. A large number of items in the Social/Cognitive domain showed differential item functioning, indicating a unique order of item difficulty in this population in this domain. Differences in item difficulty estimates were addressed through a parameter linking (equating) process. Simulations supported the accuracy and precision of the Computer Adaptive Test. Results suggest that the Pediatric Evaluation of Disability Inventory-Computer Adaptive Test, as modified for autism spectrum disorder, is an efficient and sound assessment for this population.

Cardiac autonomic regulation in autism and Fragile X syndrome: a review

Despite the significance of efforts to understand the biological basis of autism, progress in this area has been hindered, in part, by the considerable heterogeneity in the disorder. Fragile X syndrome (FXS), a monogenic condition associated with high risk for autism, may pave the way for the dissection of biological heterogeneity within idiopathic autism. This article adopts a cross-syndrome biomarker approach to evaluate potentially overlapping profiles of cardiac arousal dysregulation (and broader autonomic dysfunction) in autism and FXS. Approaches such as this, aimed at delineating shared mechanisms across genetic syndromes, hold great potential for improving diagnostic precision, promoting earlier identification, and uncovering key systems that can be targeted in pharmaceutical/behavioral interventions. Biomarker approaches may be vital to deconstructing complex psychiatric disorders and are currently promoted as such by major research initiatives such as the NIMH Research Domain Criteria (RDoC). Evidence reviewed here supports physiological dysregulation in a subset of individuals with autism, as evidenced by patterns of hyperarousal and dampened parasympathetic vagal tone that overlap with the well-documented physiological profile of FXS. Moreover, there is growing support for a link between aberrant cardiac activity and core deficits associated with autism, such as communication and social impairment. The delineation of physiological mechanisms common to autism and FXS could lend insight into relationships between genetic etiology and behavioral endstates, highlighting FMR1 as a potential candidate gene. Research gaps and potential pitfalls are discussed to inform timely, well-controlled biomarker research that will ultimately promote better diagnosis and treatment of autism and associated conditions.

Quality of life of Taiwanese adults with autism spectrum disorder

BACKGROUND

To date, few recent studies have investigated the quality of life of adults with autism spectrum disorder (ASD). It remains unclear how individuals with ASD view their own quality of life.

OBJECTIVE

The primary purpose of this study was to compare the quality of life scores among adults with ASD with those of a non-ASD control group and the Taiwanese health population reference group.

METHODS

The study comprised 41 adults with ASD (M age = 26.9, SD = 5.0), and without intellectual disabilities (IQ>70). A comparison sample of 41 adults without ASD was selected by matching the age and sex of the participants with ASD. A validated measure, the Taiwanese version of the World Health Organization Quality of Life-BREF (WHOQOL-BREF), was used. Independent t-tests were performed to examine the differences in the quality of life between groups.

RESULTS

The highest quality of life was scored in the environment domain, followed by the physical health and psychological health domains. The lowest quality of life score was found in the social relationship domain. Adults with ASD scored significantly lower in all domains than did the non-ASD control group. Additionally, adults with ASD scored significantly lower in the physical health, psychological health, and social relationship domains than did the Taiwanese health population reference group. Comorbid psychiatric disorders, self-rated health status, and perceived happiness were correlated with quality of life among adults with ASD.

CONCLUSION

The preliminary findings suggest that adults with ASD need more supportive social contexts and interventions to promote their quality of life. Based on our findings, social relationship must be considered in designing and applying treatment programs for adults with ASD.

A Two-Hit Model of Autism: Adolescence as the Second Hit

Adolescence brings dramatic changes in behavior and neural organization. Unfortunately, for some 30% of individuals with autism, there is marked decline in adaptive functioning during adolescence. We propose a two-hit model of autism. First, early perturbations in neural development function as a "first hit" that sets up a neural system that is "built to fail" in the face of a second hit. Second, the confluence of pubertal hormones, neural reorganization, and increasing social demands during adolescence provides the "second hit" that interferes with the ability to transition into adult social roles and levels of adaptive functioning. In support of this model, we review evidence about adolescent-specific neural and behavioral development in autism. We conclude with predictions and recommendations for empirical investigation about several domains in which developmental trajectories for individuals with autism may be uniquely deterred in adolescence.

The Family Context of Autism Spectrum Disorders: Influence on the Behavioral Phenotype and Quality of Life

This article reports the findings from a longitudinal program of research examining the bidirectional influences of the family environment on the behavioral phenotype of autism, and describes a newly developed family psychoeducation program, titled Transitioning Together, designed to reduce family stress, address behavior problems, and improve the overall quality of life of adolescents with autism and their families. A case study is presented that illustrates how Transitioning Together helps reduce family stress and improve the overall quality of the family environment. The article concludes with a discussion of directions for future research on best practices in working with families of children, adolescents, and adults with autism.

A longitudinal examination of 10-year change in vocational and educational activities for adults with autism spectrum disorders

The transition from adolescence to adulthood has been shown to be a time of amplified risk for individuals with autism spectrum disorders (ASD). It is unknown, however, whether problems in educational attainment and employment in the years after high school exit represent momentary perturbations in development or a turning point with long-lasting effects throughout adulthood. The present study addressed this question by examining 10-year trajectories of vocational and educational activities for adults with ASD, as well as the personal characteristics and environmental resources that predicted these activities. Participants were 161 adults with ASD (ages 18-52 years at the start of the study; M = 30.9) who were part of a larger longitudinal study. Data were collected at 6 time points over a 10-year period. Results indicated significant declines in the level of independence and engagement in vocational/educational activities over the study period, particularly for women. Greater independence in vocational activities was found for those with more independence in activities of daily living. After controlling for personal characteristics, receipt of more services was marginally related to greater improvement in vocational independence.

Therapy service use among individuals with fragile X syndrome: findings from a US parent survey

BACKGROUND

Fragile X syndrome (FXS) is known to be associated with a range of developmental challenges, yet the occurrence and intensity of therapy services along with associated factors have not been determined.

METHOD

In a US national survey, caregivers provided information regarding the therapy services received by their sons (n = 1013) and daughters (n = 283) with FXS (from birth to 63 years; mean = 15.6 years, SD = 10.6). Caregivers reported (1) type, (2) amount, (3) location, and (4) overall satisfaction with services. Associations with other child variables and family income were also examined.

RESULTS

Key findings included that 72% of males and 47% of females were currently receiving at least one type of therapy service; the most common services for both males and females were speech-language therapy (ST) and occupational therapy (OT). Overall, males were more likely to receive therapy services as well as a greater number of services than females. Autism status was significantly associated with both males and females receiving ST and males receiving OT and behaviour management therapy. Therapies were provided in a variety of locations, and parents were generally satisfied with the amount and quality of therapy services. Age-related declines were evident in the use of services for both males and females, with very few individuals receiving any therapy services after 20 years of age.

CONCLUSIONS

This study provides a baseline description of the current state of therapy services for children with FXS, laying a foundation for future research and recommendations for service provision and policy.