David Lawrence

• PhD
• Professor of Mental Health at Curtin University

This paper describes the development and validation of the Post-Traumatic Stress Disorder Assessment Scale for Emergency Services (PASES). The PASES was developed to address the needs of Australia's first National Mental Health and Wellbeing Study of Police and Emergency Services, Answering the Call (AtC) which covered Police, Ambulance, Fire and R...

Research suggests that the dimensions of childhood maltreatment (type, age of onset, duration, frequency and perpetrator) play an important role in determining health and wellbeing outcomes, though little information is available on these dimensions for any care experienced cohorts. This study aimed to determine if any variation in maltreatment dim...

Aims Suicide prevention strategies have shifted in many countries, from a national approach to one that is regionally tailored and responsive to local community needs. Previous Australian studies support this approach. However, most studies have focused on suicide deaths which may not fully capture a complete understanding of prevention needs, and...

This study examined rates of mental health disorders and health risk behaviors in people with diverse gender identities and associations with five types of child maltreatment. We used data from the Australian Child Maltreatment Study (ACMS), a nationally representative survey of Australian residents aged 16 years and more, which was designed to und...

Background Numerous national public inquiries have highlighted the problem of child sexual abuse in religious organizations. Despite this, evidence of population-wide prevalence is scarce. Objective To provide the first nationally representative prevalence estimates of child sexual abuse perpetrated by adults in religious organizations in Australi...

This study aimed to explore key characteristics of the out-of-home care subgroup of a nationally representative Australian sample. To ensure that mental health services are appropriately targeted, it is critical that we understand the differential impacts of childhood experiences for this cohort. Using the Australian Child Maltreatment Study ( N =...

Sexual harassment inflicted by adolescents on their peers is a major public health issue, but its prevalence across childhood is not known. We provide the first nationally representative data on the prevalence of peer sexual harassment across childhood, using cross-sectional data from the Australian Child Maltreatment Study (ACMS). The ACMS surveye...

LAY SUMMARY Families offer vital mental health and well-being support to Veterans and public safety personnel. This study offers a model of how families can experience moral distress from service cultures that exclude them, leaving families stuck, exacerbating a sense of moral distress resulting from perceived organizational betrayal felt in the co...

Among the many social and emotional learning (SEL) interventions available, mindfulness-based interventions (MBIs) have become increasingly popular, particularly for preadolescent children who were once thought to not possess the metacognitive abilities or cognitive resources to benefit from such training. Although previous research syntheses indic...

This study presents the most comprehensive national prevalence estimates of diverse gender and sexuality identities in Australians, and the associations with five separate types of child maltreatment and their overlap (multi-type maltreatment). Using Australian Child Maltreatment Study (ACMS) data ( N = 8503), 9.5% of participants identified with a...

Few studies have examined associations between child maltreatment and criminal justice system involvement using large nationally representative samples and comprehensive measures of self‑reported maltreatment. This study analyses nationally representative data from the Australian Child Maltreatment Study, which surveyed 8,500 Australians to obtain...

There is a need to identify the outcomes of changes in loneliness during adolescence, and to consider this within a multidimensional framework of loneliness. This study considered the effects of different trajectories of change in Isolation Loneliness and in Friendship Loneliness upon both positive wellbeing and symptoms of depression. To achieve t...

Introduction The 10-item Kessler Psychological Distress Scale (K10) is used to screen adolescents for mental disorders in Australian clinical practice; however, there are no Australian adolescent normative data. Methods Data were drawn from a nationally representative sample ( N = 2964) of Australian adolescents (11–17 years). This study had three...

Background: Little evidence exists about the prevalence of child sexual abuse (CSA) inflicted by different relational classes of perpetrators (e.g., parents; institutional adults; adolescents), and by individual types of perpetrators (e.g., fathers and male relatives; male teachers and male clergy; known and unknown adolescents). Objective: To gene...

Corporal punishment is associated with adverse outcomes; however, little empirical data exists about the state of corporal punishment in Australia. This paper presents the first national prevalence estimates of experiences of corporal punishment during childhood among Australians and its use as adults by Australian parents and caregivers. We also r...

There is a need to increase understanding of the effectiveness of bystander programmes targeting gender-based violence in the United Kingdom. There is also a need to utilise a robust theoretical models of decision-making while doing so. Changes were examined in bystanders’ attitudes, beliefs, motivations towards intervening, and intervention behavi...

Objectives To describe the aims, design, methodology, and respondent sample representativeness of the Australian Child Maltreatment Study (ACMS). Design, setting Cross-sectional, retrospective survey; computer-assisted mobile telephone interviewing using random digit dialling (computer-generated), Australia, 9 April – 11 October 2021. ParticipantsP...

Objectives To estimate the prevalence in Australia of each type of child maltreatment; to identify gender- and age group-related differences in prevalence. Design, setting Cross-sectional national survey; mobile telephone interviews using random digit dialling (computer-generated), Australia, 9 April – 11 October 2021. Retrospective self-report dat...

Objectives To examine the associations between experiences of child maltreatment and mental disorders in the Australian population.DesignPopulation-representative survey conducted by computer-assisted telephone interviewing. Setting, participants Australian residents aged 16 years and older. Main outcome measures Mental disorder diagnoses of lifeti...

Objectives To determine the prevalence in Australia of multi-type child maltreatment, defined as two or more maltreatment types (physical abuse, sexual abuse, emotional abuse, neglect, or exposure to domestic violence) and to examine its nature, family risk factors, and gender and age cohort differences. Design Retrospective cross-sectional survey...

Objective: To estimate associations between all five types of child maltreatment (emotional abuse, neglect, physical abuse, sexual abuse, and exposure to domestic violence) and health risk behaviours and conditions. Design, setting, participants: Nationally representative survey of Australian residents aged 16 years and older conducted by comput...

Objectives: To examine associations between child maltreatment and health service use, both overall, by type and by the number of types of maltreatment reported. Design, setting: Cross-sectional, retrospective survey using the Juvenile Victimization Questionnaire-R2: Adapted Version (Australian Child Maltreatment Study); computer-assisted mobile...

Background: Families play a critical role in supporting currently serving and transitioned veterans' wellbeing and help-seeking for mental health concerns; however, little is known about families' experiences. Aims: This study used Australian national survey linked-data (n = 1217) from families (Family Wellbeing Study-FWS) and veterans (Mental H...

Aims: People with severe mental illness (SMI) have a greater risk of dying from colorectal cancer (CRC), even though the incidence is lower or similar to that of the general population This pattern is unlikely to be solely explained by lifestyle factors, while the role of differences in cancer healthcare access or treatment is uncertain. Methods:...

A commonly suggested strategy for addressing bullying is for victims to seek help from a trusted person. Despite this recommendation, there are a group of adolescent victims who choose not to seek help. This study aimed to identify factors associated with not seeking help among adolescents who experienced bullying victimisation. A sub-sample of you...

The objective of this phenomenological study was to describe families' experiences of supporting veterans and emergency service first responders (ESFRs) (known also as public safety personnel) to seek help for a mental health problem. In‐depth semi‐structured open‐ended interviews were undertaken with 25 family members of Australian veterans and ES...

The purpose of this study was to produce a short-form measure of loneliness and assesses its prediction of depressive symptoms relative to a comprehensive measure. Western Australian adolescents completed the Friendship Related Loneliness and Isolation subscales of the Perth Aloneness Scale (PALs) three times over 18 months (T 1 n = 1538; T 2, n =...

Adolescence is the peak period for loneliness. Now a ubiquitous part of the adolescent landscape, electronic screens may provide avenues for ameliorating feelings of loneliness. Conversely, they may act as risk factors for the development of such feelings. Although cross-sectional studies to date have investigated the relationship between screen us...

Background Screening for depressive symptoms during adolescence is of high clinical significance. The shorter 12-item version of the Children's Depression Inventory (CDI 2:SR[S]) was specifically developed for this purpose. Evaluations of the CDI 2:SR[S] psychometrics are limited, however. The purpose of this study was to validate the CDI 2: SR[S]...

Individuals’ coping strategies have a profound effect on how well they respond to negative life events. Despite this, most coping strategies instruments that are available currently have been developed exclusively in Western contexts. In the present study, a Coping Strategies Scale (CSS) for use with Chinese participants was developed and validated...

Background The impact of COVID‐19 (SARS‐CoV‐2) pandemic school lockdowns on the mental health problems and feelings of loneliness of adolescents with neurodevelopmental disorders (NDDs) is hypothesized to be greater than that of their non‐NDD peers. This two and a half year longitudinal study compared changes in the mental health and loneliness of...

Introduction Longitudinal research examining the impact of coronavirus disease 2019 (COVID‐19) school closures on the mental health of adolescents is scarce. Prolonged periods of physical and social isolation because of such restrictions may have impacted heavily on adolescents’ mental health and loneliness. Methods The current study addresses a m...

In this study, a brief instrument (the Mental Health Change Indicator Scale, MHCIS) was developed for use in assessing the impact of a negative event on mental health. The instrument was then used to compare the reported impact of the COVID-19 pandemic on the mental health of Chinese university students studying either in China (n = 734) or Austral...

This paper examines whether adolescents can be reliably categorized into subgroups based on their patterns of anxiety levels over time and whether low levels of social support from parents, peers, and their school, and high levels of peer victimization, predict a pattern of increasing anxiety. Participants were 3392 youth from the Longitudinal Stud...

Objective Mental health service use by individuals without a diagnosed mental disorder is sometimes termed ‘met un-need’. However, provision of services for this group may be necessary to provide appropriate assessment, referral and early intervention. This study quantified child and adolescent use of, and perceived need for, mental health services...

Background: Limited evidence supports the common public health guideline that children >2 y of age should consume dairy with reduced fat content. Objectives: We aimed to investigate the effects of whole-fat compared with reduced-fat dairy intake on measures of adiposity and biomarkers of cardiometabolic risk in healthy 4- to 6-y-old children. M...

Objective Patient-reported outcomes of health-related quality-of-life (HRQoL) are important descriptors of population health. A recent Australian adolescent population survey provided a unique opportunity to derive preference-based HRQoL. Methods Data from 2967 adolescents aged 11–17 years were analysed. An interviewer-led parent/carer questionnai...

Tools to assess worry among adolescents exist but do not capture the content of worries. This study reports on the development of a brief, psychometrically sound measure of worry for use with adolescents. Phase 1 involved identification of 27 potential items from existing instruments as well as item generation identified in interviews with students...

Introduction Colorectal cancer (CRC) mortality is significantly higher in those with severe mental illness (SMI) compared with the general population, despite similar incidence rates, suggesting that barriers to optimal screening and cancer care may contribute to disparities in CRC mortality in those with SMI. This study aims to compare participati...

Objective: To explore the rates and characteristics of self-harm across the Kimberley region of Western Australia. Method: Retrospective, cross-sectional audit. We obtained and descriptively analysed routinely collected self-harm data from the Kimberley District of the Western Australia Police Force (2014-2018) and the Emergency Department Data...

Introduction Child maltreatment (physical abuse, sexual abuse, emotional abuse, neglect and exposure to domestic violence) is widely understood to be associated with multiple mental health disorders, physical health problems and health risk behaviours throughout life. However, Australia lacks fundamental evidence about the prevalence and characteri...

Objective Differences between adolescent self-reported and parent-reported emotional and behavioural difficulties may influence psychiatric epidemiological research. This study examined concordance between adolescents and their parents about mental health symptoms using the Strengths and Difficulties Questionnaire. Methods The study comprised a ra...

Objectives: This study aimed to (1) examine the strength of the association between mental disorders/mental health problems, risk behaviours and tobacco smoking among Australian adolescents, (2) compare rates of tobacco smoking among Australian adolescents with major depressive disorder, attention-deficit/hyperactivity disorder and/or conduct diso...

Objective To examine the health care costs associated with mental disorders and subthreshold mental disorders within a nationally representative sample of children and adolescents in Australia. Method Data were derived from the Young Minds Matter Survey (N = 6,310). Mental disorders were classified using the Diagnostic Interview Schedule for Child...

Answering the Call, the Australian National Police and Emergency Services Mental Health and Wellbeing Study, surveyed 14,868 Australian ambulance, fire and rescue, police, and state emergency service employees. Emergency services personnel had lower rates of mental wellbeing and higher rates of psychological distress and probable PTSD than the gene...

Purpose To assess employees’ experiences of the workers’ compensation claim process for psychological trauma, stress or a mental health condition sustained during the course of work in the police and emergency services sector. Methods 14,868 employees (69.4% male, response rate = 22%) from around Australia participated in Answering the Call: the Be...

Objective: This study aimed to determine patterns of help-seeking among first responders for conditions such as post-traumatic stress disorder (PTSD) and psychological distress. Method: Data from Answering the Call, the Australian national survey of the mental health and wellbeing of police and emergency services, was analysed to determine mental h...

Purpose: The psychometric properties of the Perth A-loneness Scale (PALs) have been extensively validated using classical test theory, but to date no studies have applied a Rasch analysis. The purpose of this study was to validate the PALs four subscales, using Rasch analysis. Methods: Responses from 1484 adolescents (58% female, mean age = 12.8...

Background : LGBQ+ people (Lesbian, Gay, Bisexual, Queer) are at-risk of discrimination and developing mental health issues within general populations. Limited research has assessed their mental health in emergency services occupations, a population which are known to experience poorer mental health. The current study explores the extent to which s...

Background: Attention-deficit/hyperactivity disorder (ADHD) is associated with negative social and occupational outcomes across the life course. However, there has been limited population-based research that quantifies the impact of ADHD on academic achievement and academic trajectories. Aims: To compare academic performance and academic traject...

Background: Recent vaccine mandates in Australia, as in other high income settings, have sought to change the behavior of parents, including those who would otherwise access nonmedical exemptions. Since 2014, Australian state governments have introduced and progressively tightened policies restricting the access of unvaccinated children to early e...

Background There is a growing momentum in paediatric ethics to develop respectful research and healthcare protocols. We developed, tested and refined our ‘Respectful Approach to Child-centred Healthcare’ (ReACH), to underpin respectful participant interactions in a clinical trial. Objective To determine whether a ReACH-based approach is acceptable...

Suicide is a leading cause of morbidity, yet a significant challenge to receiving adequate support is an unwillingness to disclose mental health issues. The current study explores reasons for nondisclosure among emergency personnel, a population at risk of developing mental health problems. Twenty-nine police, ambulance, and fire and rescue agencie...

This study tested a new program for helping smokers with severe mental illness to reduce their tobacco use, together with determining the feasibility of such research in community mental health settings in Australia. Five Neami National sites trialled a Consumer Centred Tobacco Management program called Kick the Habit (n = 34). The intervention inc...

(Abstracted from Pediatrics 2020;145(3):e20191574) Heavy maternal alcohol use has been shown to increase the risk of negative child outcomes. These poor outcomes have been attributed to both the biological effects of alcohol exposure in utero and social or environmental factors.

Objective This study presents rates of suicide thoughts and behaviours of police and emergency services personnel around Australia. In addition, it examines personal (i.e. mental health, substance use) and working environment risk and protective factors. Method A stratified random sample of personnel from 33 Australian emergency services organisat...

The heightened levels of peer relationship difficulties associated with Attention Deficit/Hyperactivity Disorder (ADHD) potentially predispose adolescents to feelings of loneliness and depressive symptoms. The current study explores whether feelings of loneliness mediate the effects of ADHD on depressive symptoms. Eighty-four adolescents (Mage = 13...

The purpose of this study was to explore the inter-relationships among students’ self-esteem, bullying victimization/perpetration behaviours, and perceived parental support, with a focus on how self-esteem mediates the association of parental support and bullying behaviours and how bullying mediates the association of parental support and self-este...

Objective To assess changes in barriers to mental health care for children and adolescents over 16 years. Methods We used data from two nationally representative surveys of Australian children and adolescents (4–17 years old), conducted in 1998 ( N = 4509) and 2013–2014 ( N = 6310). Barriers to care were assessed among parents who had reported a p...

Objectives: Investigate the relationship between maternal alcohol-use disorder and multiple biological and social child outcomes, including birth outcomes, child protection, justice contact, and academic outcomes for both Indigenous and non-Indigenous children. Methods: Women with a birth recorded on the Western Australian Midwives Notification...

Objective: Police and emergency services personnel are at an increased risk of developing mental health issues. We sought to compare patterns of exposure to work-related and nonwork stressors and associations with posttraumatic stress symptoms and psychological distress among police and emergency services employees. Method: A total of 14,868 emp...

Aims Mental disorders cause high burden in adolescents, but adolescents often underutilise potentially beneficial treatments. Perceived need for and barriers to care may influence whether adolescents utilise services and which treatments they receive. Adolescents and parents are stakeholders in adolescent mental health care, but their perceptions r...

Few studies have assessed factors which may influence an individual's risk of acting on their suicidal thoughts. The current study explores whether affective, behavioural or interpersonal factors are effective in discriminating between adolescents who only think about suicide, and those who attempt suicide. From a sample of 2,655 families randomly...

Background Likely duration of survival of children described as having cerebral palsy is of considerable interest to individuals with cerebral palsy, their families, carers, health professionals, health economists and insurers. The aim of this paper is to describe patterns of survival and mortality to the sixth decade in a geographically defined po...

The purpose of this study is to examine the association between poverty and child mental disorders, and in particular, address an important knowledge gap by examining the influence of primary carer mental health in these relationships. We extend previous research by differentiating by specific child mental disorders, age group (4–11 and 12–17 year-...

Mental disorders are among the most common and disabling conditions affecting children and adolescents. Patterns of school attendance among students with and without mental disorders were examined using data from the 2013–2014 Australian Child and Adolescent Survey of Mental Health and Wellbeing. One in seven school students had a mental disorder i...

Purpose The association between psychotic experiences (PEs) and non-accidental self-injury (NASI; including self-harm and suicide attempts) is well established, although variables influencing this relationship have not been comprehensively examined. This study aimed to investigate (1) the cross-sectional PE–NASI association before and after adjustm...

Detailed results from a national survey of Australian Police and Emergency Services employees and volunteers. The report evaluates the prevalence of mental health issues, such as PTSD, psychological distress, suicidal thoughts and behaviours, and substance use. In addition, it provides a comprehensive assessment of the psychosocial working environm...

Poly drug use in adolescents represents a significant public health issue, heightening risk for abuse, dependency, and a variety of short- and long-term psychological, psychosocial, and health consequences. However, past studies have typically examined just one or two substances in isolation and there is a lack of research that has comprehensively...

Objective:: Worldwide, little information is available about the extent to which children with mental disorders in the general population receive treatment from health professionals that meets minimal clinical practice guidelines. This study identifies the percentage of 6-17 year olds with mental disorders in the 2013-2014 Australian national surv...

Adolescents are constantly connected with each other and the digital landscape through a myriad of screen media devices. Unprecedented access to the wider world and hence a variety of activities, particularly since the introduction of mobile technology, has given rise to questions regarding the impact of this changing media environment on the menta...

This paper provides Australian population-level estimates of the prevalence of parental self-reported lifetime mental disorders and past 12 month mental disorders in their children. It leverages unique data from the 2013–2014 Australian Child and Adolescent Survey of Mental Health and Wellbeing (Young Minds Matter) (n = 6310). Mental disorders were...

Objective: Despite growing literature on psychotic experiences, no nationally representative study has reported on the prevalence of both hallucinatory experiences and delusional experiences in Australian adolescents. Also, while many studies have examined the association between psychotic experiences and certain demographic and clinical correlate...

Background: High quality, longitudinal data describing young people's screen use across a number of distinct forms of screen activity is missing from the literature. This study tracked multiple screen use activities (passive screen use, gaming, social networking, web searching) amongst 10- to 17-year-old adolescents across 24 months. Methods: Th...

Objective: To identify the percentage of 4-17 year olds with mental disorders in Australia who attended health professionals for single or repeat visits to get help for emotional and behavioural problems during a 12-month period. To identify factors associated with single and repeat visits, and the average length of time between visits. To compare...

Objective This study examined whether the 12-month prevalence of major depressive disorder (MDD), attention-deficit/hyperactivity disorder (ADHD), and conduct disorder (CD) among 6-17 year-olds in Australia changed between 1998 and 2013-14. It also investigated whether changes in the prevalence of disorders over this time varied for children living...

Young Minds Matter: The second Australian Child and Adolescent Survey of Mental Health and Wellbeing was part of the National Survey of Mental Health and Wellbeing initiative, an Australian Government Department of Health funded initiative. It was conducted in 2013-14 and surveyed 6,310 families with children and adolescents aged 4-17 years. Survey...

Mental disorders are among the most common and disabling health conditions affecting children and adolescents today. They can significantly impact family life, and adversely affect students' learning and development. Students with mental disorders are less connected and engaged with their schooling, attend school less often, and have poorer academi...

Objective: To examine (1) the 12-month prevalence of social anxiety disorder (SOC), separation anxiety disorder (SEP) and generalized anxiety disorder (GAD) in a large, nationally representative sample of Australian youth; (2) patterns of comorbidity between these disorders; (3) demographic and socio-environmental correlates and (4) the psychosoci...

Background: Social norms relating to youth substance use are changing. In Australia, alcohol use among adolescents has fallen dramatically and tobacco and cannabis use have also reduced, albeit more moderately. The aim of the present study was to identify (i) factors associated with compliance with recommendations for zero intake of alcohol, tobac...

We examined the relationship between a maternal alcohol-use diagnosis, and the timing of diagnosis, and child protection outcomes in a Western Australian population cohort. This analysis made use of routinely collected linked administrative health and child protection data. Those in scope for the study were women who had a birth recorded on the Wes...

Background: Although public health concerns have been raised regarding the detrimental health effects of increasing rates of electronic screen use among adolescents, such effects have been small. Instruments currently available tend to be lengthy, have a clinical research focus, and assess young people's screen use on specific screen-based activit...

Table S1. In‐scope ICD9/10 alcohol related diagnoses.

Objectives Examine the relationship between maternal alcohol use disorder and child school attendance outcomes for non-Indigenous and Indigenous children in Western Australia. Design Population cohort study. Setting Routinely collected linked administrative health, education and child protection data. Participants Those in-scope for the study we...

Background: Early contact with the justice system is associated with a multitude of negative outcomes across the life course. This includes an increased risk of ongoing justice contact, social disadvantage and marginalization, and mental health and substance use issues. Children whose mothers have an alcohol use disorder may be at risk of early ju...