The higher rate of mental illness, including severe psychotic disorders, among people in prisons compared to the general community is well-established. However, there have been no reviews or attempts to pool data on the reported prevalence of mental illness across prisons in Australia and New Zealand.

To understand the themes for Māori subjected to compulsory community treatment orders.

The prevalence of treatment-resistant schizophrenia (TRS) among people with first-episode schizophrenia (FES) has been sub-optimally researched in Australia and internationally. We evaluated the prevalence of TRS among a cohort of FES patients and compared their sociodemographic and clinical characteristics to those with FES who were treatment responsive.

To determine whether completion of an online mental health self-assessment by patients who are waiting in the emergency department can save clinician time taken to complete clinical assessment and documentation.

We have previously analysed outcomes for all community treatment orders commenced during a 10-year period in New Zealand. Given Te Tiriti O Waitangi obligations to scrutinise health and consider equity for Māori, we completed this analysis to consider community treatment-order outcomes according to ethnicity.

The objective of this paper is to summarise the policy implications of key findings from the 2020-22 Australian National Study of Mental Health and Wellbeing (NSMHWB). We provide an analysis of policy implications of four papers in this issue of the journal from the 2020-22 NSMHWB ( = 15,893) and the 2007 NSMHWB ( = 8841). The 2020-2022 NSMHWB reported a lifetime prevalence rate of common mental disorders of 40.2% (95% confidence interval [CI] = 39.2-41.3) and 12-month prevalence rate of 20.2% (95% CI 19.5-21.0). Overall, adult Australians were significantly more likely to experience a 12-month mental disorder in 2020-22 compared with 2007, with the change most striking in among those aged 16-24 years (odds ratio [OR] 1.2, 95% CI 1.1-1.3). Individuals aged 16-24 years in 2020-22 were significantly more likely to experience a 12-month anxiety disorder (OR 2.9, 95% CI = 2.3-3.7, depressive disorder (OR 2.8 95% CI = 2.1-3.9) or comorbidity (relative risk [RR] = 1.4, 95% CI = 1.2-1.7) compared with those aged 16-24 years in 2007. In 2020-22, the proportion of Australians who had experienced suicidal ideation, suicide plans and suicide attempts in the past 12 months was 3.3%, 1.1% and 0.3%. Under half (46.5% 95% CI 44.1-48.8) of adults with a 12-month mental disorder sought treatment. Mental disorders remain an endemic feature of Australia's overall health landscape and appear to be increasing, especially in younger cohorts. While service use rates have improved over time, there is still some way to go. Epidemiological surveys such as the 2020-22 NSMHWB are important for understanding changing prevalence and the population not accessing services. Innovative prevention and treatment strategies will be needed to address the increasing rates of disorders in younger Australian adults. Equally innovative and bold policy responses will be essential.

People experiencing psychosis are at greater risk of physical health conditions and premature mortality. It is likely that Indigenous Māori youth, who experience additional systemic inequities caused by settler-colonisation, face even greater physical health and mortality risks following a diagnosis of first-episode psychosis.

On 15 March 2019, a white supremacist terrorist carried out sequential attacks on two mosques in Christchurch, New Zealand during Friday prayers. This resulted in the loss of 51 lives, 40 others sustained gunshot injuries, and there were approximately 250 survivors. This study aimed to evaluate the impacts on community members, assess clinical needs, facilitate access to appropriate interventions and provide insights into working with a traumatised and diverse population.

Self-poisoning is the most common form of hospitalised self-harm in young people and has been increasing over the last decade. The COVID-19 pandemic was associated with further increases in self-harm in adolescents. There are limited data on changes after pandemic restrictions ended. This study aimed to describe recent trends in self-poisoning in young people.

This study aimed to examine mortality for people living with dementia/mild cognitive impairment who self-harmed.

As highlighted in Australia's Productivity Commission Inquiry into mental health, subgroups of individuals are failing to have their needs met, or are 'falling through the cracks' in the current system - a phenomenon increasingly referred to as the 'missing middle'. A barrier to devising solutions is that the term 'missing middle' is not clearly defined. Using the Delphi method, we aimed to define the term and explore acceptability.

A disproportionate number of mental health presentations to emergency services are made by frequent presenters. No current consensus definition of a frequent presenter exists. Using a statewide population-based ambulance database, this study (i) applied previous statistical methods to determine thresholds for frequent presenters, (ii) explored characteristics of the identified frequent presenter groups compared to non-frequent presenters and (iii) assessed the reliability of these methods in predicting continued frequent presenter status over time.

Complex psychosis is associated with high social and economic costs. The key skills and attributes needed by mental health professionals to provide optimal clinical care to people experiencing complex psychosis have not previously been defined. A framework detailing these skills and attributes is needed to support the identification of training needs for those working with this population.

Military service is historically a male-dominated occupation, as such, the majority of research examining the development of mental disorder in Australian Defence Force members has had primarily male samples. While there have been mixed findings internationally regarding sex differences in rates of mental disorder and subthreshold symptoms among military personnel, across studies, the evidence tends to suggest that female military members are at least as likely as males to experience subthreshold mental health symptoms and have similar or higher rates of posttraumatic stress disorder despite the differences in roles during service. What is less understood is the impact of sex differences in symptom emergence over time and in predictors of clinical disorder.

Previous estimates from 2007 found that co-occurring mental and/or substance use disorders were a pervasive feature of Australia's mental health. Since that time there have been shifts and improvements in the conceptualisation and incorporation of co-occurring disorders in research and treatment settings. The current study provides up-to-date estimates on the prevalence of co-occurring mental and/or substance use disorders, highlights common patterns of co-occurrence, identifies significant correlates and examines any changes in the extent of co-occurring disorders since 2007.

The trauma most commonly associated with the military is combat-related trauma. It is increasingly recognised that childhood sexual and physical abuse and military sexual assault may influence or exacerbate posttraumatic stress disorder (PTSD) when military members are exposed to combat.

Youth suicidality prevalence continues to rise alongside hot weather severity. Links between these two variables are underexplored. We examined associations between daily temperature and emergency department suicidality presentations by young people. We assessed these associations for five regions covering New South Wales as determined by 'climate zone' and analysed for heatwave effects as well as based on demographic subgroups.

Electroconvulsive therapy is an effective treatment for several psychiatric conditions. There are theoretical risks associated with electroconvulsive therapy in patients who are anticoagulated. However, there is no review investigating these adverse effects.

Mental and substance use disorders are the leading causes of disability worldwide. Contemporary estimates of prevalence, severity and impairment are essential for service planning. This study provides estimates of prevalence, severity, impairment and demographic correlates of mental and substance use disorders in 2020-22 and changes in prevalence since 2007.