Objectives: Many jurisdictions across Canada and internationally are grappling with providing diagnostic and intervention services for children with autism spectrum disorder (ASD). The objective was to compare Canadian and United Kingdom (UK) policies governing ASD diagnosis.
Methods: The policy scan extended from January 2000 to December 2017. Canadian federal, provincial/territorial, and UK government publications related to ASD diagnosis were retrieved from official websites by searching for ASD and related terms. Retrieved documents were filtered for relevance, with all relevant documents undergoing full text review. Data extracted included personnel and testing requirements for diagnosis, wait times, and eligibility for ASD services and funding.
Results: The included jurisdictions varied substantially in their approach to ASD diagnosis and eligibility for intervention. Nine of the 13 provinces/territories restrict which clinicians can diagnose ASD by requiring certain documentation for service eligibility. Three provinces require multi-disciplinary team assessment (British Columbia [BC], Quebec, and Nova Scotia [NS]). Three provinces (BC, NS, and Prince Edward Island [PEI]) require specific diagnostic tests for diagnosis. Only two provinces, BC and NS, have target wait times for assessment. Jurisdictions differed in whether they allowed children with a provisional diagnosis of ASD to access services. At a national level, the UK provides more clinical guidance for ASD diagnosis, which can be attributed to its centralized system of national healthcare delivery.
Conclusions: ASD diagnostic assessment policies vary across Canada, and between Canada and the UK. Further evidence supporting ASD diagnostic practices is needed to streamline the journey from identification to intervention.
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http://dx.doi.org/10.1093/pch/pxy107 | DOI Listing |
Res Child Adolesc Psychopathol
January 2025
Nutrition and Mental Health Research Group (NUTRISAM), Universitat Rovira I Virgili (URV), Carretera de Valls, S/N, 43007, Tarragona, Spain.
The aim of this study is to investigate the impact of using probiotics with strains related to dopamine and gamma-aminobutyric acid production on clinical features of autism spectrum disorder (ASD) and/or attention deficit/hyperactivity disorder (ADHD). This randomized, controlled trial involved 38 children with ADHD and 42 children with ASD, aged 5-16 years, who received probiotics (Lactiplantibacillus plantarum and Levilactobacillus brevis 109/cfu/daily) or placebo for 12 weeks. Parent-reported symptoms were assessed using Conners' 3rd-Ed and the Social Responsiveness Scale Test, 2nd-Ed (SRS-2), and children completed the Conners Continuous Performance Test, 3rd-Ed (CPT 3) or Conners Kiddie CPT, 2nd-Ed (K-CPT 2).
View Article and Find Full Text PDFBrain Struct Funct
January 2025
Applied Psychology, Faculty of Education, University of Western Ontario, 1137 Western Rd, London, ON, N6G 1G7, Canada.
Children and adolescents with neurodevelopmental disorders such as autism spectrum disorder (ASD) and attention deficit hyperactivity disorder (ADHD) may be more susceptible to early life stress compared to their neurotypical peers. This increased susceptibility may be linked to regionally-specific changes in the striatum and amygdala, brain regions sensitive to stress and critical for shaping maladaptive behavioural responses. This study examined early life stress and its impact on striatal and amygdala development in 62 children and adolescents (35 males, mean age = 10.
View Article and Find Full Text PDFSensors (Basel)
December 2024
College of Information Science and Engineering, Hunan Normal University, Changsha 410081, China.
Early detection of autism spectrum disorder (ASD) is particularly important given its insidious qualities and the high cost of the diagnostic process. Currently, static functional connectivity studies have achieved significant results in the field of ASD detection. However, with the deepening of clinical research, more and more evidence suggests that dynamic functional connectivity analysis can more comprehensively reveal the complex and variable characteristics of brain networks and their underlying mechanisms, thus providing more solid scientific support for computer-aided diagnosis of ASD.
View Article and Find Full Text PDFDiagnostics (Basel)
December 2024
Computer Science Department, Yarmouk University, Irbid 21163, Jordan.
One of the key challenges in autism is early diagnosis. Early diagnosis leads to early interventions that improve the condition and not worsen autism in the future. Currently, autism diagnoses are based on monitoring by a doctor or specialist after the child reaches a certain age exceeding three years after the parents observe the child's abnormal behavior.
View Article and Find Full Text PDFJ Affect Disord
January 2025
Department of Anesthesiology, Shengjing Hospital of China Medical University, Shenyang 110004, China. Electronic address:
Background: Metabolomics research is a promising orientation for the diagnosis and intervention of several diseases, and observational studies have found many metabolic profiles to be associated with mental disorders. However, the causal relationship between plasma and cerebrospinal fluid (CSF) metabolites and mental disorders has not been established.
Methods: We identified independent genetic variants associated with plasma, CSF metabolites, and mental disorders from pooled data in the published Genome-wide association studies (GWASs) and performed Mendelian randomization (MR) to investigate causal relationships.
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