J Autism Dev Disord. 2025 Apr 25. doi: 10.1007/s10803-025-06826-8. Online ahead of print.

ABSTRACT

PURPOSE: With growing frequency, young people are referred for autism assessment following the onset of mental health difficulties, such as anxiety and depression. Understanding the nature of these difficulties and how they change through the assessment process may be crucial in providing effective support; this study provided the first longitudinal assessment of that.

METHOD: Twenty-seven young people and their parents/carers completed questionnaire measures of mental health, wellbeing and quality of life while waiting for an autism assessment, at the point of assessment and three months after receiving their diagnostic outcome.

RESULTS: A range of clinically-significant mental health presentations were reported. Young people commonly reported more severe symptoms than their parents, while parents reported a more significant impact. Mental health symptoms were correlated with quality of life. There was not evidence that the potentially stressful experience of waiting for and completing an assessment negatively impacted young people’s mental health or wellbeing.

CONCLUSION: Young people waiting for autism assessment experience varied, enduring and impactful difficulties with mental health: comprehensive assessment is required to meet their needs. At a group-level, there is no good reason to delay autism assessment for fear of worsening mental health symptoms.

PMID:40279068 | DOI:10.1007/s10803-025-06826-8