Acceptance and commitment therapy (ACT) for adults with intellectual disabilities and/or autism spectrum conditions (ASC): A systematic review"

Mental health in autistic adults: A rapid review of prevalence of psychiatric disorders and umbrella review of the effectiveness of interventions within a neurodiversity informed perspective

BACKGROUND

Autistic adults have high risk of mental ill-health and some available interventions have been associated with increased psychiatric diagnoses. Understanding prevalence of psychiatric diagnoses is important to inform the development of individualised treatment and support for autistic adults which have been identified as a research priority by the autistic community. Interventions require to be evaluated both in terms of effectiveness and regarding their acceptability to the autistic community.

OBJECTIVE

This rapid review identified the prevalence of psychiatric disorders in autistic adults, then systematic reviews of interventions aimed at supporting autistic adults were examined. A rapid review of prevalence studies was completed concurrently with an umbrella review of interventions. Preferred Reporting Items for Systematic Review and Meta-Analysis (PRISMA) guidelines were followed, including protocol registration (PROSPERO#CRD42021283570).

DATA SOURCES

MEDLINE, CINAHL, PsycINFO, and Cochrane Database of Systematic Reviews.

STUDY ELIGIBILITY CRITERIA

English language; published 2011-2022; primary studies describing prevalence of psychiatric conditions in autistic adults; or systematic reviews evaluating interventions for autistic adults.

APPRAISAL AND SYNTHESIS

Bias was assessed using the Prevalence Critical Appraisal Instrument and AMSTAR2. Prevalence was grouped according to psychiatric diagnosis. Interventions were grouped into pharmacological, employment, psychological or mixed therapies. Strength of evidence for interventions was assessed using GRADE (Grading of Recommendations, Assessment, Development and Evaluation). Autistic researchers within the team supported interpretation.

RESULTS

Twenty prevalence studies were identified. Many included small sample sizes or failed to compare their sample group with the general population reducing validity. Prevalence of psychiatric diagnoses was variable with prevalence of any psychiatric diagnosis ranging from 15.4% to 79%. Heterogeneity was associated with age, diagnosis method, sampling methods, and country. Thirty-two systematic reviews of interventions were identified. Four reviews were high quality, four were moderate, five were low and nineteen critically low, indicating bias. Following synthesis, no intervention was rated as 'evidence based.' Acceptability of interventions to autistic adults and priorities of autistic adults were often not considered.

CONCLUSIONS

There is some understanding of the scope of mental ill-health in autism, but interventions are not tailored to the needs of autistic adults, not evidence based, and may focus on promoting neurotypical behaviours rather than the priorities of autistic people.

Psychological therapies for anxiety in autistic individuals with co-occurring intellectual developmental disorder: A systematic review

This systematic review aimed to evaluate the efficacy of psychological therapies for anxiety for people with autism and co-occurring intellectual developmental disorder (AUT + IDD). A systematic search identified 13 studies comprising 49 participants with AUT + IDD, aged between 5 and 41 years. Most studies were single-case experimental designs (n = 7) or case studies or case series (n = 4). Studies implemented cognitive behavioural therapy (n = 4) or exposure therapy techniques (n = 9). All studies reported a reduction in anxiety symptoms, as measured by either quantitative measures or defined as participants meeting end of treatment criterion. However, the conclusions are preliminary due to the methodological limitations of the current literature. The implications of these findings, as well as recommendations for future direction in the field, are discussed.

Empirically supported psychological treatments: The challenges of comorbid psychiatric and behavioral disorders in people with intellectual disability

This paper reviews the current state of knowledge on psychological interventions with empirical evidence of efficacy in treating common psychiatric and behavioral disorders in people with intellectual disability (ID) at all stages of their life. We begin with a brief presentation of what is meant by psychiatric and behavioral disorders in this population, along with an explanation of some of the factors that contribute to the increased psychosocial vulnerability of this group to present with these problems. We then conduct a review of empirically supported psychological therapies used to treat psychiatric and behavioral disorders in people with ID. The review is structured around the three generations of therapies: Applied behavior analysis (e.g., positive behavior support), cognitive behavioral therapies (e.g., mindfulness-based cognitive therapy), and contextual therapies (e.g., dialectical behavior therapy). We conclude with some recommendations for professional practice in the fields of ID and psychiatry.

Association of Autism Spectrum Disorder and Attention Deficit Hyperactivity Disorder Traits with Depression and Empathy Among Medical Students

PURPOSE

This study aimed to investigate the associations of the traits of autism spectrum disorder (ASD) and attention deficit hyperactivity disorder (ADHD) with depression and empathy among medical students.

PATIENTS AND METHODS

A cross-sectional survey was conducted with 202 fifth-year students at a Japanese medical school for 10 months during their clinical clerkship. The survey included sociodemographic questions and validated tools to measure depressive symptoms (Hospital Anxiety and Depression Scale [HADS]), medical students' empathy for patients (Jefferson Scale of Empathy-Student version [JSE]), ADHD traits (ADHD Self-Report Scale Screener [ASRS Screener]), and ASD traits (Autism-Spectrum Quotient Japanese version-21 [AQ-J-21]).

RESULTS

A total of 151 students (response rate: 74.7%) participated in the survey. Of these, 41 (27.2%) reported a total score of ≥ 20 on the HADS and were categorized as depressed. Depressed students reported significantly lower and higher rates of having a part-time job and a history of enrolment in other faculties, respectively, than non-depressed students. According to the cutoff criteria of the ASRS Screener and AQ-J-21, 31 (20.5%) and 42 (27.8%) students reported ADHD and ASD traits, respectively. Multivariate regression analysis, controlling for age and sex, reported that higher age, ASRS Screener scores, and AQ-J-21 scores were significant predictors of higher HADS total scores. Additionally, higher AQ-J-21 scores significantly predicted lower JSE scores.

CONCLUSION

The degree of ADHD and ASD traits was significantly associated with depression. Moreover, the degree of ASD traits was significantly associated with lower empathy for their patients. It is important to consider that about 20-30% of medical students have these neurodevelopmental traits and to develop intervention strategies for improving depression and empathy.