Centre for Youth Mental Health - Research Publications

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    The relationship between subjective sleep disturbance and attenuated psychotic symptoms after accounting for anxiety and depressive symptoms
    Formica, MJC ; Fuller-Tyszkiewicz, M ; Hickie, I ; Olive, L ; Wood, SJ ; Purcell, R ; Yung, AR ; Phillips, LJ ; Nelson, B ; Pantelis, C ; Mcgorry, PD ; Hartmann, JA (ELSEVIER, 2023-08)
    BACKGROUND AND HYPOTHESES: Sleep disturbances are increasingly recognized as cooccurring with psychotic symptoms. The potential importance of this relationship is complicated when considering the effects of anxiety and depressive symptoms which commonly present in early-stage illness states. This study aimed to investigate the relationship between self-reported sleep disturbance on the development of attenuated psychotic symptoms (APS) cross-sectionally and longitudinally while adjusting for roles of anxiety and depressive symptoms. DESIGN: Eight-hundred and two help-seeking young people aged 12 to 25 years who engaged with our Australian early intervention services were included in the study (the "Transitions" cohort). Cross sectional mediation and cross-lagged longitudinal (12-month) mediation models were developed with outcomes being different APS domains. RESULTS: Only baseline excessive daytime sleepiness predicted later APS when accounting for previous APS, anxiety and depressive symptomatology. Cross sectionally, self-reported sleep disturbance showed both direct and indirect predictive relationships with all APS domains. Partial mediation through anxiety and depression was shown for unusual thought content, perceptual abnormalities, and disorganised speech, while full mediation through depression was shown for non-bizarre ideas. CONCLUSIONS: The specificity of the relationship between self-reported sleep disturbance on APS highlights the potential for different roles in mechanistic models of psychotic symptom expression. This further indicates the need for further experimental research to illuminate potential causal pathways. Future research should continue to use continuous, symptom level approaches across a range of timeframes to more accurately model the complex dynamics present in the sleep-psychosis relationship.
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    Childhood trauma is prevalent and associated with co-occurring depression, anxiety, mania and psychosis in young people attending Australian youth mental health services
    Bendall, S ; Eastwood, O ; Spelman, T ; McGorry, P ; Hickie, I ; Yung, AR ; Amminger, P ; Wood, SJ ; Pantelis, C ; Purcell, R ; Phillips, L (SAGE PUBLICATIONS LTD, 2023-12)
    OBJECTIVES: Childhood trauma is common and associated with mental ill health. While high rates of trauma are observed across individual disorders, there is evidence that trauma is associated with an admixture of affective, anxiety and psychotic symptoms in adults. Given that early onset of mental disorder and trauma exposure herald poor outcomes, it is important to examine trauma prevalence rates in youth mental health services and to determine whether this trauma-related clustering is present in help-seeking young people. METHODS: We used data from the Transitions Study, a longitudinal investigation of young people attending headspace youth mental health services in Australia between January 2011 and August 2012. Participants were 775 young people aged 12-25. Childhood trauma was assessed using the Childhood Trauma Questionnaire. Multinomial regression was used to assess whether reported childhood trauma was more strongly associated with the co-occurrence of depression, anxiety, mania and psychosis symptoms than with any one in isolation. RESULTS: Approximately 84% of participants reported some form of abuse (emotional: 68%; physical: 32%; sexual: 22%) or neglect (emotional: 65%; physical: 46%). Exposure to multiple trauma types was common. Childhood trauma was significantly associated with each symptom domain. More severe childhood trauma was more strongly associated with the co-occurrence of symptoms than with any one symptom domain in isolation, such that more severely trauma-exposed young people were more likely to experience increased symptom clustering. CONCLUSIONS: Childhood trauma is pervasive in youth mental health services and associated with a symptom profile that cuts across traditional diagnostic boundaries.
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    Can youth at high risk of illness progression be identified by measures of rumination and sleep-wake disturbance
    Grierson, AB ; Scott, J ; Glozier, N ; Hickie, IB ; Amminger, PG ; Killackey, E ; McGorry, PD ; Pantelis, C ; Phillips, L ; Scott, E ; Yung, AR ; Purcell, R (WILEY, 2019-10)
    AIM: Clinical staging models offer a useful framework for understanding illness trajectories, where individuals are located on a continuum of illness progression from stage 0 (at-risk but asymptomatic) to stage 4 (end-stage disease). Importantly, clinical staging allows investigation of risk factors for illness progression with the potential to target trans-diagnostic mechanisms at an early stage, especially in help-seeking youth who often present with sub-threshold syndromes. While depressive symptoms, rumination and sleep-wake disturbances may worsen syndrome outcomes, the role of these related phenomena has yet to be examined as risk factors for trans-diagnostic illness progression in at-risk youth. METHODS: This study is a prospective follow-up of 248 individuals aged 12 to 25 years presenting to headspace services with sub-threshold syndromes (stage 1) classified under the clinical staging model to determine transition to threshold syndromes (stage 2). Factor analysis of depression, rumination and sleep-wake patterns was used to identify key dimensions and any associations between factors and transition to stage 2 at follow-up. RESULTS: At 1 year, 9% of cases met criteria for stage 2 (n = 22). One of three identified factors, namely the factor reflecting the commonalities shared between rumination and sleep-wake disturbance, significantly differentiated cases that transitioned to stage 2 vs those that did not demonstrate transition. Items loading onto this factor, labelled Anergia, included depression severity and aspects of rumination and sleep-wake disturbance that were characterized as introceptive. CONCLUSIONS: Common dimensions between rumination and sleep-wake disturbance present a detectable trans-diagnostic marker of illness progression in youth, and may represent a target for early intervention.
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    Global research priorities for youth mental health
    Mei, C ; Fitzsimons, J ; Allen, N ; Alvarez-Jimenez, M ; Amminger, GP ; Browne, V ; Cannon, M ; Davis, M ; Dooley, B ; Hickie, IB ; Iyer, S ; Killackey, E ; Malla, A ; Manion, I ; Mathias, S ; Pennell, K ; Purcell, R ; Rickwood, D ; Singh, SP ; Wood, SJ ; Yung, A ; McGorry, PD (WILEY, 2020-02)
    AIM: Over the past two decades, the youth mental health field has expanded and advanced considerably. Yet, mental disorders continue to disproportionately affect adolescents and young adults. Their prevalence and associated morbidity and mortality in young people have not substantially reduced, with high levels of unmet need and poor access to evidence-based treatments even in high-income countries. Despite the potential return on investment, youth mental disorders receive insufficient funding. Motivated by these continual disparities, we propose a strategic agenda for youth mental health research. METHOD: Youth mental health experts and funders convened to develop youth mental health research priorities, via thematic roundtable discussions, that address critical evidence-based gaps. RESULTS: Twenty-one global youth mental health research priorities were developed, including population health, neuroscience, clinical staging, novel interventions, technology, socio-cultural factors, service delivery, translation and implementation. CONCLUSIONS: These priorities will focus attention on, and provide a basis for, a systematic and collaborative strategy to globally improve youth mental health outcomes.
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    Delayed sleep onset in depressed young people
    Glozier, N ; O'Dea, B ; McGorry, PD ; Pantelis, C ; Amminger, GP ; Hermens, DF ; Purcell, R ; Scott, E ; Hickie, IB (BMC, 2014-02-08)
    BACKGROUND: The circadian abnormality of delayed sleep phase has been suggested to characterise a subgroup of depressed young adults with different risk factors and course of illness. We aim to assess the prevalence and factors, particularly substance use, associated with such delay in a large help-seeking cohort of young people with mental health problems. METHODS: From a consecutively recruited sample of 802 help-seeking young people, 305 (38%) had at least moderate depressive symptoms (QIDS-C16 >10), sleep data and did not have a chronic severe mental illness. Demographic and clinical characteristics were evaluated through self report and clinical interview. Delayed sleep phase was defined as a sleep onset between the hours of 02:00 a.m. - 06:00 a.m. and the characteristics of this group were compared to normal phase sleepers. RESULTS: Delayed sleep onset was reported amongst 18% (n = 56/305) of the depressed group compared to 11% of the non-depressed young people. Amongst the depressed group, delayed sleep onset was associated with tobacco, alcohol and cannabis misuse and short sleep duration (x̅: 5.8 hrs vs. x̅: 7.8 hrs). There were no differences in demographic factors, personality traits or symptoms. Tobacco smoking was very common: In logistic regression analyses only tobacco use (OR 2.28, 95% CI: 1.04 - 5.01) was associated with delayed sleep onset. There was no interaction with age. CONCLUSIONS: Delayed sleep onset was twice as common in depressed young people as the general population and young people with other mental health problems, and is a potential marker for a subgroup of mood disorders. Those with delayed sleep onset were not more severely depressed but had short sleep duration, a risk for chronic psychological ill health, and higher levels of tobacco use. Nicotine use was common in this group, has biological evidence as a sleep disrupter, and requires specifically addressing in this population.
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    The Mental Health of Elite Athletes: A Narrative Systematic Review
    Rice, SM ; Purcell, R ; De Silva, S ; Mawren, D ; McGorry, PD ; Parker, AG (ADIS INT LTD, 2016-09)
    BACKGROUND: The physical impacts of elite sport participation have been well documented; however, there is comparatively less research on the mental health and psychological wellbeing of elite athletes. OBJECTIVE: This review appraises the evidence base regarding the mental health and wellbeing of elite-level athletes, including the incidence and/or nature of mental ill-health and substance use. METHODS: A systematic search of the PubMed, EMBASE, SPORTDiscus, PsycINFO, Cochrane and Google Scholar databases, up to and including May 2015, was conducted. RESULTS: The search yielded a total of 2279 records. Following double screening, 60 studies were included. The findings suggested that elite athletes experience a broadly comparable risk of high-prevalence mental disorders (i.e. anxiety, depression) relative to the general population. Evidence regarding other mental health domains (i.e. eating disorders, substance use, stress and coping) is less consistent. These results are prefaced, however, by the outcome of the quality assessment of the included studies, which demonstrated that relatively few studies (25 %) were well reported or methodologically rigorous. Furthermore, there is a lack of intervention-based research on this topic. CONCLUSION: The evidence base regarding the mental health and wellbeing of elite athletes is limited by a paucity of high-quality, systematic studies. Nonetheless, the research demonstrates that this population is vulnerable to a range of mental health problems (including substance misuse), which may be related to both sporting factors (e.g. injury, overtraining and burnout) and non-sporting factors. More high-quality epidemiological and intervention studies are needed to inform optimal strategies to identify and respond to player mental health needs.
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    Improving Mood with Physical ACTivity (IMPACT) trial: a cluster randomised controlled trial to determine the effectiveness of a brief physical activity behaviour change intervention on depressive symptoms in young people, compared with psychoeducation, in addition to routine clinical care within youth mental health services - a protocol study
    Parker, AG ; Markulev, C ; Rickwood, DJ ; Mackinnon, A ; Purcell, R ; Alvarez-Jimenez, M ; Yung, AR ; McGorry, P ; Hetrick, SE ; Jorm, A (BMJ PUBLISHING GROUP, 2019-10)
    INTRODUCTION: Depression is highly prevalent and the leading contributor to the burden of disease in young people worldwide, making it an ongoing priority for early intervention. As the current evidence-based interventions of medication and psychological therapy are only modestly effective, there is an urgent need for additional treatment strategies. This paper describes the rationale of the Improving Mood with Physical ACTivity (IMPACT) trial. The primary aim of the IMPACT trial is to determine the effectiveness of a physical activity intervention compared with psychoeducation, in addition to routine clinical care, on depressive symptoms in young people. Additional aims are to evaluate the intervention effects on anxiety and functional outcomes and examine whether changes in physical activity mediate improvements in depressive symptoms. METHODS AND ANALYSIS: The study is being conducted in six youth mental health services across Australia and is using a parallel-group, two-arm, cluster randomised controlled trial design, with randomisation occurring at the clinician level. Participants aged between 12 years and 25 years with moderate to severe levels of depression are randomised to receive, in addition to routine clinical care, either: (1) a physical activity behaviour change intervention or (2) psychoeducation about physical activity. The primary outcome will be change in the Quick Inventory of Depressive Symptomatology, with assessments occurring at baseline, postintervention (end-point) and 6-month follow-up from end-point. Secondary outcome measures will address additional clinical outcomes, functioning and quality of life. IMPACT is to be conducted between May 2014 and December 2019. ETHICS AND DISSEMINATION: Ethical approval was obtained from the University of Melbourne Human Research Ethics Committee on 8 June 2014 (HREC 1442228). Trial findings will be published in peer-reviewed journals and presented at conferences. Key messages will also be disseminated by the youth mental health services organisation (headspace National Youth Mental Health Foundation). TRIAL REGISTRATION NUMBER: ACTRN12614000772640.
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    A prospective cohort study of depression course, functional disability, and NEET status in help-seeking young adults
    O'Dea, B ; Lee, RSC ; McGorry, PD ; Hickie, IB ; Scott, J ; Hermens, DF ; Mykeltun, A ; Purcell, R ; Killackey, E ; Pantelis, C ; Amminger, GP ; Glozier, N (SPRINGER HEIDELBERG, 2016-10)
    PURPOSE: To examine the associations between depression course, functional disability, and Not in Education or Training (NEET) status in a clinical sample of young adults with mental health problems. METHODS: Young adults aged 15-25 years seeking help from four primary mental health services were invited to participate in a prospective cohort study evaluating the course of psychiatric disorders in youth. Demographic and clinical characteristics, including depressive symptomatology and functioning, were evaluated through clinical interview and self-report at baseline and 12 month follow-up. RESULTS: A total of 448 young adults participated (70 % female; M: 20.05 years, SD = 2.85). A significant interaction effect for time and depression course was found, such that those who became depressed reported an increase in functional disability and those whose depression remitted reported a significant reduction in functional disability. Developing depression was not a significant predictor of becoming NEET and vice versa: remitted depression did not make a person more likely to reengage in employment or education. CONCLUSIONS: This is the first study to examine the course of depression, functional disability, and NEET rates among help-seeking young adults. This study confirms the importance of symptom reduction for improved functioning; however, functional disability remained greater than that seen in young people in the community and there was no association between a change in depression and a change in NEET status. These results argue that services need to address functional outcomes and reengagement with education and employment in addition to symptom reduction.
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    Adolescent and Young Adult Male Mental Health: Transforming System Failures Into Proactive Models of Engagement
    Rice, SM ; Purcell, R ; McGorry, PD (ELSEVIER SCIENCE INC, 2018-03)
    Adolescent and young adult men do poorly on indicators of mental health evidenced by elevated rates of suicide, conduct disorder, substance use, and interpersonal violence relative to their female peers. Data on global health burden clearly demonstrate that young men have a markedly distinct health risk profile from young women, underscoring different prevention and intervention needs. Evidence indicates that boys disconnect from health-care services during adolescence, marking the beginning of a progression of health-care disengagement and associated barriers to care, including presenting to services differently, experiencing an inadequate or poorly attuned clinical response, and needing to overcome pervasive societal attitudes and self-stigma to access available services. This review synthesizes key themes related to mental ill health in adolescent boys and in young adult men. Key social determinants are discussed, including mental health literacy, self-stigma and shame, masculinity, nosology and diagnosis, and service acceptability. A call is made for focused development of policy, theory, and evaluation of targeted interventions for this population, including gender-synchronized service model reform and training of staff, including the e-health domain. Such progress is expected to yield significant social and economic benefits, including reduction to mental ill health and interpersonal violence displayed by adolescent boys and young adult men.
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    A cross-sectional exploration of the clinical characteristics of disengaged (NEET) young people in primary mental healthcare
    O'Dea, B ; Glozier, N ; Purcell, R ; McGorry, PD ; Scott, J ; Feilds, K-L ; Hermens, DF ; Buchanan, J ; Scott, EM ; Yung, AR ; Killacky, E ; Guastella, AJ ; Hickie, IB (BMJ PUBLISHING GROUP, 2014)
    OBJECTIVE: Youth with mental health problems often have difficulties engaging in education and employment. In Australia, youth mental health services have been widely established with a key aim of improving role functioning; however, there is little knowledge of those who are not engaged in employment, education or training (NEET) and the factors which may influence this. This study aimed to examine NEET status and its correlates in a sample of such youth. DESIGN: Cross-sectional data from a longitudinal cohort study. SETTING: Between January 2011 and August 2012, young people presenting to one of the four primary mental health centres in Sydney or Melbourne were invited to participate. PARTICIPANTS: Young adults (N=696) aged between 15 and 25 years (M=19.0, SD=2.8), 68% female, 58% (n=404) attended headspace in Sydney. MEASURES: Individuals 'Not in any type of Education, Employment or Training' in the past month were categorised as NEET. Demographic, psychological and clinical factors alongside disability and functioning were assessed using clinical interview and self-report. RESULTS: A total of 19% (n=130/696) were NEET. NEETs were more likely to be male, older, have a history of criminal charges, risky cannabis use, higher level of depression, poorer social functioning, greater disability and economic hardship, and a more advanced stage of mental illness than those engaged in education, training or work. Demographics such as postsecondary education, immigrant background and indigenous background, were not significantly associated with NEET status in this sample. CONCLUSIONS: One in five young people seeking help for mental health problems were not in any form of education, employment and training. The commonly observed risk factors did not appear to influence this association, instead, behavioural factors such as criminal offending and cannabis use appeared to require targeted intervention.