No abstract

Routine outcome measurement (ROM) data offer unique opportunities to study treatment outcomes in clinical practice, and can help to assess the real-world impact of mental health services for children and adolescents (youth). This is illustrated by studies using naturalistic data from specialist child and adolescent mental healthcare services (CAMHS), showing the proportion of patients with reliable improvement, recovery or deterioration (Burgess et al., 2015; Wolpert et al., 2016), and revealing specific subgroups of patients with greater risk of poor outcome (Garralda et al., 2000; Lundh et al., 2013; Murphy et al., 2015; Edbrooke-Childs et al., 2017). Naturalistic data are therefore undeniably necessary in addition to data derived from randomised clinical trials, which often have limited generalisability due to strict selection criteria (Rothwell, 2005; Van Noorden et al., 2014).

Aim: To provide insight into the characteristics and treatment outcomes of children and adolescents accessing outpatient Child and Youth Mental Health Services (CYMHS), and to explore whether outcomes differ by age, sex, and ancestry background. This information can guide how to optimize the treatment delivered at these services.Methods: An observational retrospective study was performed based on data from 3098 children and adolescents between age 5 and 18 who received treatment at Brisbane, Australia, community CYMHS between 2013-2018. Patient characteristics, service use, and clinician and parent rated Routine Outcome Measures (ROM) were extracted from electronic health records.Results: Anxiety and mood disorders were the most common mental disorders (37% and 19%). In 1315 children and adolescents (42%), two or more disorders were diagnosed, and the far majority (88%) had experienced at least one psychosocial stressor.The ROM scores improved between start and end of treatment with Cohen's d effect sizes of around 0.9. However, 50% of the children still scored in the clinical range at the end of treatment. Outcomes did not differ over gender and Indigenous status.Conclusions: Children and adolescents accessing CYMHS have severe and complex mental disorders as reflected by high rates of comorbidity, exposure to adverse circumstances and high symptom scores at the start of treatment. Despite the clinically relevant and substantial improvement, end ROM scores indicated the presence of residual symptoms. As this increases the risk for relapse, services should explore ways to improve treatment to further reduce mental health symptoms.

Objective: Previous studies at child and youth mental health services (CYMHS) suggest that children with ADHD have poorer outcomes compared to those with other diagnoses. This study investigates this in more detail. Methods: Children with ADHD were compared to those with ASD and those with emotional disorders, on routinely collected outcomes at CYMHS in Australia ( N = 2,513) and the Netherlands ( N = 844). Results: Where the emotional disorders group reached a similar level of emotional symptoms at the end-of-treatment as the ADHD and ASD groups, the latter two groups still had higher scores on ADHD and ASD symptoms (attention and peer problems). The poorer outcomes were mainly explained by higher severity at baseline. In Australia, an ADHD and/or ASD diagnosis also independently contributed to worse outcomes. Conclusion: Those with neurodevelopmental disorders within both countries had poorer outcomes than those with emotional disorders. Services should aim to optimize treatment to ensure best possible outcomes.