Prevalence of mental illness among Australian and New Zealand people in prison: A systematic review and meta-analysis of studies published over five decades.

BACKGROUND: 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. METHODS: A systematic search of electronic databases from 1966 to the end of 2020 was conducted to identify studies reporting rates of 'any' mental illness, and separately rates of psychotic illness, among adult men and women in Australian and New Zealand prisons. A meta-analysis was performed according to PRISMA guidelines (PROSPERO ID: CRD42021241946), with separate analyses conducted for lifetime and current prevalence rates. RESULTS: Seventeen studies, with a total of 10,209 people in prison, met inclusion criteria. The pooled lifetime prevalence of 'any' mental illness was 69.0% (95% confidence interval = [0.56, 0.79]), and the pooled lifetime prevalence for psychosis was 9.1% (95% confidence interval = [0.07, 0.12]). Meanwhile, the pooled prevalence for 'any' current mental illness was 54.0% (95% confidence interval = [0.39, 0.68]) and for any current psychosis was 6.4% (95% confidence interval = [0.04, 0.10]). There was substantial heterogeneity between studies, with evidence that lifetime rates of psychosis have increased over time, with true prevalence estimates in 95% of all comparable populations falling between 2.7% and 26.4%. CONCLUSION: The prevalence of mental illness, including severe psychotic illness, is high in Australian and New Zealand prisons. Furthermore, there is evidence that the prevalence of psychosis may be increasing over time, indicating more effort is needed to ensure diversion of people with mental illness away from the criminal justice system and into healthcare pathways.

Testing the Effectiveness of a Mobile Smartphone App Designed to Improve the Mental Health of Junior Physicians: Protocol for a Randomized Controlled Trial.

BACKGROUND: Shift (Black Dog Institute) is the first mobile health smartphone app created to support the mental health of junior physicians. Junior physicians experience demanding work conditions, leading to high levels of psychological distress and burnout. However, they are often concerned about the potential career impacts of seeking mental health support. The confidentiality and ease of access of digital interventions may be particularly suited to address these concerns. The Shift app provides therapeutic and psychoeducational content and strategies contextualized for the specific needs of physicians in training. App content includes information on mental health, help seeking, mindfulness, and common workplace-related concerns of junior physicians. OBJECTIVE: This study aims to test, at scale, the effectiveness of Shift among junior physicians working in Australia using a randomized controlled trial design. The primary aim is to examine whether junior physicians using Shift experience a reduction in depressive symptoms compared with a waitlist control group. The secondary aim is to examine whether the app intervention group experiences improvements in anxiety, work and social functioning, help seeking, quality of life, and burnout compared with the control group. METHODS: A total of 778 junior physicians were recruited over the internet through government and nongovernment medical organizations across Australia, as well as through paid social media advertisements. They were randomly allocated to one of 2 groups: (1) the intervention group, who were asked to use the Shift app for a period of 30 days, or (2) the waitlist control group, who were placed on a waitlist and were asked to use the app after 3 months. Participants completed psychometric measures for self-assessing mental health and wellbeing outcomes, with assessments occurring at baseline, 1 month after completing the baseline period, and 3 months after completing the baseline period. Participants in the waitlist control group were asked to complete an additional web-based questionnaire 1 month after receiving access to the app or 4 months after completing the baseline survey. Participants took part in the study on the internet; the study was completely automated. RESULTS: The study was funded from November 2022 to December 2024 by the New South Wales Ministry of Health. Data collection for the study occurred between January and August 2024, with 780 participants enrolling in the study during this time. Data analysis is underway; the effectiveness of the intervention will be estimated on an intention-to-treat basis using a mixed-model, repeated measures analysis. Results are expected to be submitted for publication in 2025. CONCLUSIONS: To the best of our knowledge, this is the first randomized controlled trial to examine the effectiveness of a mobile health smartphone app specifically designed to support the mental health of junior physicians. TRIAL REGISTRATION: Australia and New Zealand Clinical Trials Registry ACTRN12623000664640; https://tinyurl.com/7xt24dhk. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): DERR1-10.2196/58288.

Achieving gender equity in academic psychiatry - barriers to involvement and solutions for success.

OBJECTIVE: Women face considerable barriers in pursuing careers in academic psychiatry. METHODS: A group of Australian and New Zealand academic women psychiatrists convened in September 2022 to identify and propose solutions to increase opportunities for women in academic psychiatry. RESULTS: Limiting factors were identified in pathways to academia including financial support, engagement and coordination between academia and clinical services, and flexible working conditions. Gender biases and the risk of burnout were additional and fundamental barriers. Potential solutions include offering advanced training certificates to enable trainees to commence a PhD and Fellowship contemporaneously; improved financial support; expanding opportunities for research involvement; establishing mentoring opportunities and communities of practice; and strategies to enhance safety at work and redress gender bias and imbalance in academia. CONCLUSIONS: Support for women in research careers will decrease gender disparity in academic psychiatry and may decrease problematic gender bias in research. Fellows and trainees, the RANZCP, universities, research institutes, governments, industry and health services should collaborate to develop and implement policies supporting changes in working conditions and training. Facilitating the entry and retention of women to careers in academic psychiatry requires mentoring and development of a community of practice to provide and enable support, role modelling, and inspiration.

Exposure to Childhood Adversity and Intimate Partner Violence in a Sample of Incarcerated Women in Australia.

Women who use violence represent one of the fastest growing groups within the Australian prisoner population, including Aboriginal women who are more likely to be incarcerated than non-Aboriginal women for violent crimes. Many incarcerated women report histories of adverse childhood experiences (ACEs) and intimate partner violence. This exploratory study examines baseline data from a sample of 167 women in 3 Western Australia women's prisons enrolled in a gender-specific violent behavior program. It describes their exposure to intimate partner violence, head injury, and childhood adversities. Overall, 94% of women had experienced at least one childhood adversity (median 6), and 94% reported being a victim of physical violence by a current or former intimate partner. Aboriginal women were more likely than non-Aboriginal women to report that a family member was incarcerated as a child (p = .001). There was an association between an increased number of ACEs and head injury with a loss of consciousness (p = .008). Overall, these results present a harrowing picture of childhood exposure to adversity and violence in adulthood. Successful rehabilitation of women incarcerated for violent crimes should be cognizant of the histories of extreme violence endured by most of these women.

The full spectrum of clinical stages of psychosis at prison entry: prevalence and concurrent validity of symptom screening.

PURPOSE: Despite the high rates of psychotic disorders amongst people in prison, current prison mental health screening approaches have not included assessment of the full psychosis spectrum to capture those at-risk of an emerging psychosis as well as those with established illness nor assessed the concurrent validity of psychosis symptom screening. METHODS: Using a clinical staging approach to establish the prevalence of Ultra High Risk (UHR), first episode of psychosis (FEP) and established psychosis (EP) groups, 291 adults entering custody in two prison reception centres in NSW completed a two-stage (screening and validation) interview process. The Comprehensive Assessment of At-Risk Mental States (CAARMS) was used to determine the clinical stages of psychosis and concurrent validity of symptom screening in identifying individuals on the psychosis spectrum was formally assessed. RESULTS: Amongst men and women entering prison, almost one quarter (24.1%) met UHR criteria, 5.1% met the FEP threshold and 10.6% had an established psychosis. Those on the psychosis spectrum reported greater disadvantage across sociodemographic and justice factors. The presence of perceptual disturbance and paranoid beliefs emerged as the two best screening items for identifying those with an underlying psychosis spectrum illness. CONCLUSION: The prevalence of psychosis spectrum illness, including the UHR state, amongst those entering prison is high. Current prison mental health approaches should include screening for the presence of perceptual disturbances and paranoid beliefs to improve the detection of psychosis spectrum illness.

Forensic mental health: envisioning a more empirical future.

Forensic mental health services provide crucial interventions for society. Such services provide care for people with mental disorders who commit violent and other serious crimes, and they have a key role in the protection of the public. To achieve these goals, these services are necessarily expensive, but they have been criticised for a high-cost, low-volume approach, for lacking consistent standards of care, and for neglecting human rights and other ethical considerations. A key concern is an insufficient evidence base to justify common practices, such as restricting leave from hospital and detaining patients for long periods. There is also insufficient quality evidence for core interventions, including psychological therapies, pharmacotherapy, and seclusion and restraint. The causes for this evidence deficit are complex but include insufficient investment in research infrastructure and fragmentation and isolationism of services, both nationally and internationally. In this Personal View, we highlight some of the major gaps in the forensic mental health evidence base and the challenges in addressing these gaps. We suggest solutions with implications at clinical, societal, and public health policy levels.

Patterns of health service use for children with mental disorders in an Australian state population cohort.

OBJECTIVES: The rate of mental health services provided to children and young people is increasing worldwide, including in Australia. The aim of this study was to describe patterns of hospital and ambulatory mental health service use among a large population cohort of adolescents followed from birth, with consideration of variation by age, sex and diagnosis. METHODS: Characteristics of services provided for children with mental disorder diagnoses between birth and age 17.5 years were ascertained for a population cohort of 85,642 children (52.0% male) born between 2002 and 2005, from 'Admitted Patients', 'Emergency Department' and 'Mental Health Ambulatory' records provided by the New South Wales and Australian Capital Territory Health Departments. RESULTS: A total of 11,205 (~13.1%) children received at least one hospital or ambulatory health occasion of service for a mental health condition in the observation period. More than two-fifths of children with mental disorders had diagnoses spanning multiple categories of disorder over time. Ambulatory services were the most heavily used and the most common point of first contact. The rate of mental health service contact increased with age across all services, and for most categories of mental disorder. Girls were more likely to receive services for mental disorders than boys, but boys generally had an earlier age of first service contact. Finally, 3.1% of children presenting to mental health services experienced involuntary psychiatric inpatient admission. CONCLUSIONS: The extent of hospital and ambulatory-based mental healthcare service among children emphasises the need for primary prevention and early intervention.

Patterns and correlates of health service contact prior to serious offences by people with severe mental illness.

BACKGROUND: Contact with health services prior to offences committed by people with mental illness is an opportunity for intervention and prevention. This study examines the pattern and correlates of health service contact by people with severe mental illness before a serious offence. METHOD: Linkage of a cohort of 477 Forensic Patients found not guilty due to mental illness between 1990 and 2016, and statewide databases of contact with emergency departments, hospital admission and outpatient mental health services in the state of New South Wales, Australia. RESULTS: A total of 84% of the sample had contact with any health service and 76% had contact with an outpatient mental health service prior to the index offence. About two-thirds of the sample had contact with a mental health service in the year before the offence. Factors independently associated with the absence of contact at any point prior to the index offence were non-English-speaking background, being engaged in employment or study, and an absence of childhood abuse or neglect. Although nearly every Forensic Patient had a psychotic illness at the time of the index offence, psychosis was not diagnosed at the time of 61/106 (57.5%) emergency department presentations, in 54/174 (31.0%) hospital admissions and 149/222 (67.1%) attendances at outpatient mental health services prior to the offence. CONCLUSIONS: Most Forensic Patients had contact with health services prior to their offences but many were not identified as having a psychotic illness. Although the symptoms of psychosis may have emerged in the period between contact and the offence, the findings suggest that emerging or underlying psychosis were missed or attributed to other conditions.

The prevalence of mental illness in young people in custody over time: a comparison of three surveys in New South Wales.

Few studies have examined the prevalence of mental illness in young people over time within the same jurisdiction. In the current study, we compared data from three large surveys of youth in custody in New South Wales, conducted in 2003, 2009 and 2015. We examined rates of mental illness, self-harm and suicidal behaviours, substance use and childhood trauma and found little consistent change over time, though some fluctuations were observed regarding certain mental illnesses and substance use. We also descriptively compared findings with observed rates for the general population and found that young people in custody showed higher levels of all examined variables. In sum, these data suggest little improvement in the well-being of young people in custody in New South Wales over time. Better identification and treatment of these issues are vital if young people are to be prevented from becoming enmeshed in the criminal justice system.

Interventions targeting social determinants of mental disorders and the Sustainable Development Goals: a systematic review of reviews.

Globally, mental disorders account for almost 20% of disease burden and there is growing evidence that mental disorders are socially determined. Tackling the United Nations Sustainable Development Goals (UN SDGs), which address social determinants of mental disorders, may be an effective way to reduce the global burden of mental disorders. We conducted a systematic review of reviews to examine the evidence base for interventions that map onto the UN SDGs and seek to improve mental health through targeting known social determinants of mental disorders. We included 101 reviews in the final review, covering demographic, economic, environmental events, neighborhood, and sociocultural domains. This review presents interventions with the strongest evidence base for the prevention of mental disorders and highlights synergies where addressing the UN SDGs can be beneficial for mental health.

Absolute and relative risk of violent victimisation and perpetration following onset of mental illness: a Danish register-based study.

Background: Previous research has suggested that people with severe mental illness are at elevated risk of both violence perpetration and violent victimisation, with risk of the latter being perhaps greater than the former. However, few studies have examined risk across both outcomes. Methods: Using a total population approach, the absolute and relative risks of victimisation and perpetration were estimated for young men and women across the full psychiatric diagnostic spectrum. Information on mental disorder status was extracted from national registers and information on violent victimisation and perpetration outcomes from police records. The follow-up was from age 15 to a maximum of 31 years, with most of the person-time at risk pertaining to cohort members aged in their early twenties. Both absolute risk (at 1 and 5 years from onset of illness) and relative risk were estimated. Findings: Both types of violent outcome occurred more frequently amongst those with mental illness than the general population. However, whether risk of one was greater than the other depended on a range of factors, including sex and diagnosis. Men with a mental disorder had higher absolute risks of both outcomes than women [victimisation: Cin (5 year) = 7.15 (6.88-7.42) versus Cin (5 year) = 4.79 (4.61-4.99); perpetration: Cin (5 year) = 8.17 (7.90-8.46) versus Cin (5 year) = 1.86 (1.75-1.98)], as was the case with persons in the general population without a recorded mental illness diagnosis. Women with mental illness had higher absolute risk of victimisation than perpetration, which was also true for men and women without mental illness. However, the opposite was true for men with mental illness. Men and women with diagnoses of personality disorders, substance use disorders, and schizophrenia-spectrum disorders were at highest risk of victimisation and perpetration. Interpretation: Strategies developed to prevent violent victimisation and violence perpetration may need to be tailored for young adults with mental disorders. There may also be a benefit in taking a sex-specific approach to prevention in this group. Funding: This study was supported by an Australian National Health and Medical Research Council Investigator Grant awarded to the first author.

Levels of Involvement with Child Protection Services Associated with Early Adolescent Police Contact as a Victim and Person of Interest.

The relationship between childhood maltreatment and subsequent offending/victimization is well established. However, the magnitude of this relationship for different levels of child protection services (CPS) involvement is poorly understood, due to measurement issues, lack of longitudinal data, and reliance on reports of substantiated maltreatment, which can underestimate the impact of maltreatment. This study examined associations between CPS involvement during childhood (ages 0 to <11 years) and police services contact (as a victim and/or a person of interest) for criminal incidents in early adolescence (11 to ~14 years), differentiated according to levels of CPS involvement (i.e., no risk of significant harm [non-ROSH], unsubstantiated ROSH, substantiated ROSH, and out-of-home care; each examined relative to no CPS contact). Data for 71,465 children were drawn from the New South Wales Child Development Study, an intergenerational, longitudinal investigation that uses administrative records from CPS and police alongside other health, justice, and education data. Multinomial regression analyses were conducted to determine associations between increasing levels of CPS involvement and police contact as a victim only, a person of interest only, and as both victim and person of interest while accounting for covariates (i.e., child's sex, Aboriginal, and/or Torres Strait Islander background, socioeconomic status, maternal age at child's birth, and parental offending history). Children exposed to any of the four levels of CPS involvement had higher odds of police contact, relative to children with no CPS involvement. Odds ratios were higher for contact with police as both a victim and a person of interest, compared to police contact as a victim or a person of interest only. These findings highlight that children with even unsubstantiated CPS reports (i.e., non-ROSH and unsubstantiated ROSH reports) are at heightened risk of police contact compared to children who are unknown to CPS, underlining the need to support all families in contact with CPS.

Childhood Schizotypy and Adolescent Mental Disorder.

BACKGROUND AND HYPOTHESIS: Schizotypy provides a framework for understanding the developmental nature of psychotic disorders and a means of identifying "at-risk" individuals early in the lifespan. However, there is a lack of prospective longitudinal research examining the relationship between schizotypy in childhood and later psychotic and other mental disorders. We hypothesized that distinct profiles of schizotypy in childhood would be differentially associated with psychotic and other mental disorders emerging later in adolescence. STUDY DESIGN: In a large population cohort of Australian young people (n = 26 837), we prospectively examined the relationship between person-centered profiles of schizotypy identified in middle childhood (age ~11 years) and adolescent diagnoses (age ~13-18 years) across 7 types of mental disorders using multinomial logistic regression. RESULTS: Membership in any of 3 childhood schizotypy profiles (true schizotypy, affective schizotypy, or introverted schizotypy) was associated with an increased likelihood of being diagnosed with any type of mental disorder in adolescence; effects were strongest for the true schizotypy group (aOR = 3.07, 95% CI = 2.64, 3.57), followed by the introverted (aOR = 1.94, 95% CI = 1.75, 2.15) and affective (aOR = 1.29, 95% CI = 1.13, 1.47) schizotypy groups. Six of the 7 types of mental disorders measured (including psychotic disorders) were associated with at least 1 schizotypy group. CONCLUSIONS: Schizotypy in middle childhood is an important correlate of mental disorders in adolescence; however, it does not appear to be specifically associated with psychotic disorders in this age group.

Early life exposure to air pollution and psychotic-like experiences, emotional symptoms, and conduct problems in middle childhood.

BACKGROUND: Air pollution has been linked to a variety of childhood mental health problems, but results are inconsistent across studies and the effect of exposure timing is unclear. We examined the associations between air pollution exposure at two time-points in early development and psychotic-like experiences (PLEs), and emotional and conduct symptoms, assessed in middle childhood (mean age 11.5 years). METHODS: Participants were 19,932 children selected from the NSW Child Development Study (NSW-CDS) with available linked multi-agency data from birth, and self-reported psychotic-like experiences (PLEs) and psychopathology at age 11-12 years (middle childhood). We used binomial logistic regression to examine associations between exposure to nitrogen dioxide (NO2) and particulate matter less than 2.5 µm (PM2.5) at two time-points (birth and middle childhood) and middle childhood PLEs, and emotional and conduct symptoms, with consideration of socioeconomic status and other potential confounding factors in adjusted models. RESULTS: In fully adjusted models, NO2 exposure in middle childhood was associated with concurrent PLEs (OR = 1.10, 95% CI = 1.02-1.20). Similar associations with PLEs were found for middle childhood exposure to PM2.5 (OR = 1.05, 95% CI = 1.01-1.09). Neither NO2 nor PM2.5 exposure was associated with emotional symptoms or conduct problems in this study. CONCLUSIONS: This study highlights the need for a better understanding of potential mechanisms of action of NO2 in the brain during childhood.

Global Prevalence of Childhood Exposure to Physical Violence within Domestic and Family Relationships in the General Population: A Systematic Review and Proportional Meta-Analysis.

Efforts to identify and prevent childhood exposure to physical violence within domestic and family relationships must be underpinned by reliable prevalence estimates to ensure the appropriate allocation of resources and benchmarks for assessing intervention efficacy. We conducted a systematic review and meta-analysis of the global prevalence of childhood exposure to physical domestic and family violence separately as a victim or witness. Searches were conducted in Criminal Justice Abstracts, Embase, Scopus, PubMed, PsychInfo, and Google Scholar. Studies were included if they were peer-reviewed, published in English, had a representative sample, unweighted estimates, and were published between January 2010 and December 2022. One-hundred-and-sixteen studies comprising 56 independent samples were retained. Proportional meta-analysis was conducted to calculate the pooled prevalence for each exposure. Pooled prevalence estimates were also stratified by region and sex. The global pooled prevalence of childhood exposure to physical domestic and family violence as a victim or witness was 17.3% and 16.5%, respectively. Prevalence estimates were highest in West Asia and Africa (victim = 42.8%; witness = 38.3%) and lowest for the Developed Asia Pacific region (victim = 3.7%; witness = 5.4%). Males were 25% more likely than females to be the victim of physical domestic and family violence during childhood, while both were equally likely to have witnessed it. These findings suggest that childhood exposure to domestic and family violence is relatively common, affecting around one-in-six people by 18 years of age globally. Regional variations in prevalence estimates may reflect underlying economic conditions, cultural norms, and service availability.

A Systematic Review of Interpersonal Violence Perpetration and Victimization Risk Examined Within Single Study Cohorts, Including in Relation to Mental Illness.

Rates of both violent victimization and violence perpetration are known to be elevated among individuals with mental illness compared with those in the general population, though the relative risk of each outcome is less well established. In this systematic review, PubMed, Embase, Web of Science, PsycINFO, and Criminal Justice Abstracts were searched for articles published any time before October 2021 that reported the prevalence or incidence of both violent victimization and perpetration. We performed two searches to identify studies using samples or cohorts of (1) persons with mental illnesses and (2) persons in the general population. A total of 25 studies (9 examining persons with mental illnesses, 13 examining persons in the general population, and 3 examining both sample/cohort types) were identified and data was extracted to describe the type and size of cohort or sample, definitions and terminology (i.e., mental illness, violence victimization, violence perpetration), data source(s), observation period, prevalence/incidence of victimization, and prevalence/incidence of perpetration. The Joanna Briggs Institute Critical Appraisal Checklist for Studies Reporting Prevalence Data was used to conduct a quality assessment of all included studies. Due to marked study heterogeneity, results were presented using a narrative synthesis approach. Across studies, findings were mixed, and the methodological approaches varied greatly. Broadly, the review provides evidence for (1) higher rates of victimization than perpetration for both individuals with mental illness and those in the general population and (2) higher rates of both victimization and perpetration for those with mental illness compared to those in the general population.

Cumulative comorbidity between neurodevelopmental, internalising, and externalising disorders in childhood: a network approach.

Cumulative comorbidity of mental disorders is common, but the extent and patterns of comorbid psychopathology in childhood are not well established. The current study aimed to elucidate the emergent patterns of cumulative mental disorder comorbidity in children using network analysis of diagnoses recorded between birth and age 12 years. Participants were 90,269 children (mean age 12.7 years; 51.8% male) within the New South Wales Child Development Study (NSW-CDS)-a longitudinal record-linkage cohort study of Australian children born in NSW between 2002 and 2005. Binary indicators for eight types of mental disorder were derived from administrative health records. Patterns of conditional association between mental disorders were assessed utilising network analysis. Of 90,269 children, 2268 (2.5%) had at least one mental disorder by age 12 years; of the 2268 children who had at least one mental disorder by age 12 years, 461 (20.3%) were diagnosed with two or more different disorders out of the eight disorder types included in analyses. All disorders were either directly or indirectly interconnected, with childhood affective and emotional disorders and developmental disorders being most central to the network overall. Mental disorder nodes aggregated weakly (modularity = 0.185) into two communities, representative of internalising and externalising disorders, and neurodevelopmental and sleep disorders. Considerable sex differences in the structure of the mental disorder comorbidity networks were also observed. Developmental and childhood affective and emotional disorders appear to be key to mental disorder comorbidity in childhood, potentially reflecting that these disorders share symptoms in common with many other disorders.

The full spectrum of clinical stages of psychosis among mentally ill prisoners in New South Wales (NSW), Australia.

Research on the association between psychosis and criminal offending has typically focused on violent offenders with chronic psychotic illness. This stages of psychosis in prison (SOPP) study used a clinical staging approach to identify adult men referred to prison mental health services who had an at-risk mental state (ARMS), first episode of psychosis (FEP) or an established psychotic illness. Of the 105 participants included, 6% were determined to have FEP, 6% met ARMS criteria and the remainder had an established psychotic illness. Compared to a prison control sample, individuals on the psychosis spectrum were found to have higher levels of social disadvantage and other co-occurring mental health and substance use problems but were not more likely to have committed a violent offence. These findings support the notion that risk of criminal justice contact and complex illness burden exist across the full spectrum of psychotic illness.