ArticleEuropean child & adolescent psychiatry2024
Predictors of age at diagnosis in autism spectrum disorders: the use of multiple regression analyses and a classification tree on a clinical sample.
Article in European child & adolescent psychiatry, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 15 citations in OpenAlex.
- Intact but Protracted Facial and Prosodic Emotion Recognition Among Autistic Adults.Journal of autism and developmental disorders · 2026Article
- Exploring factors associated with autism spectrum disorder diagnosis among children in primary care clinics in Kelantan, Malaysia.BMC primary care · 2026Article
- Converging neurotrophic-immune signaling in autism spectrum disorder: integrative roles of klotho, GDNF/GFRA-1, IGF-1 and GLP-1 pathways.Metabolic brain disease · 2026Review
- Finding the forest in the trees: Using machine learning and online cognitive and perceptual measures to predict adult autism diagnosis.Translational psychiatry · 2026Article
- Clinical and Sociodemographic Characteristics Associated with Access to Early Intervention Programs for Infants with Prodromes of Autism.Journal of clinical medicine · 2026Article
- Pathways and delays in the diagnosis of autism spectrum disorder in Kenya: a cross-sectional study from tertiary hospitals in Nairobi.Child and adolescent psychiatry and mental health · 2025Article
- Slow but Steady: Similarities and Differences in Executive Functioning Between Autistic and Non-Autistic Adults.Autism research : official journal of the International Society for Autism Research · 2025Article
- Clinical and sociodemographic factors related to the timing of autism diagnosis in an Italian cohort of children.Frontiers in psychiatry · 2025Article
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Authors and funding
6 authors at 4 institutions in 1 country.
Funding
Abstract
The increasing prevalence of autism spectrum disorders (ASD) has led to worldwide interest in factors influencing the age of ASD diagnosis. Parents or caregivers of 237 ASD children (193 boys, 44 girls) diagnosed using the Autism Diagnostic Observation Schedule (ADOS) completed a simple descriptive questionnaire. The data were analyzed using the variable-centered multiple regression analysis and the person-centered classification tree method. We believed that the concurrent use of these two methods could produce robust results. The mean age at diagnosis was 5.8 ± 2.2 years (median 5.3 years). Younger ages for ASD diagnosis were predicted (using multiple regression analysis) by higher scores in the ADOS social domain, higher scores in ADOS restrictive and repetitive behaviors and interest domain, higher maternal education, and the shared household of parents. Using the classification tree method, the subgroup with the lowest mean age at diagnosis were children, in whom the summation of ADOS communication and social domain scores was ≥ 17, and paternal age at the delivery was ≥ 29 years. In contrast, the subgroup with the oldest mean age at diagnosis included children with summed ADOS communication and social domain scores < 17 and maternal education at the elementary school level. The severity of autism and maternal education played a significant role in both types of data analysis focused on age at diagnosis.
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