Estimating the societal cost of heroin dependence in an Australian population engaged in treatment or harm reduction services.

Introduction: Heroin dependence is a public health concern in Australia. High mortality rates, increased risk of physical/mental health comorbidities and increased risk of social issues contribute to a high personal and societal cost. The aim of this paper is to understand the societal cost of heroin dependence in an Australian population.

Low Risk of Cardiac Complications During Long-Term Follow-Up of Opioid Dependence.

Objectives: To prospectively assess rates of QT prolongation, arrhythmia, syncope, and sudden cardiac death (SCD) in a cohort of people with heroin dependence.

Methods: To estimate rates of QT prolongation, arrhythmia, and syncope, a subcohort (n = 130) from the Australian Treatment Outcomes Study, a prospective longitudinal cohort study of 615 people with heroin dependence, underwent medical history, venepuncture, and ECG at the 18- to 20-year follow-up.To estimate rates of SCD, probabilistic matching for the entire cohort was undertaken with the Australian Institute of Health and Welfare National Death Index.

Is post-traumatic stress disorder a risk factor for development of opioid use disorder among individuals with chronic non-cancer pain? A systematic review.

Introduction: There is emerging evidence that posttraumatic-stress disorder may have mediating effects in development of chronic-non-cancer-pain and opioid-use-disorder independently, but its impact on the development of opioid-use-disorder in people with chronic-non-cancer pain is still unclear.

Objectives: (i) Estimate the risk of opioid-use-disorder among individuals with chronic-non-cancer-pain and posttraumatic-stress disorder, relative to those with chronic-non-cancer-pain only, and (ii) identify potential correlates of opioid-use-disorder among people with chronic-non-cancer-pain and posttraumatic-stress disorder.

Methods: This systematic review was conducted as per the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines.

The Long-Term Relationship Between Cannabis and Heroin Use: An 18- to 20-year Follow-Up of the Australian Treatment Outcome Study (ATOS).

Objective: Cannabis use is common among individuals with opioid use disorder, but it remains unclear whether cannabis use is associated with an increase or a reduction in illicit opioid use. To overcome limitations identified in previous longitudinal studies with limited follow-ups, the authors examined a within-person reciprocal relationship between cannabis and heroin use at several follow-ups over 18 to 20 years.

Methods: The Australian Treatment Outcome Study (ATOS) recruited 615 people with heroin dependence in 2001 and 2002 and reinterviewed them at 3, 12, 24, and 36 months as well as 11 and 18-20 years after baseline.

Long-term patterns of treatment use for opioid use disorder (OUD): Findings from the 18-20-year Australian Treatment Outcome Study.

Background: Opioid-related deaths continue to increase to unprecedented rates in many regions of the world. While long-term stable treatment has been shown to reduce associated morbidity and mortality, discontinuation and numerous treatment episodes are common, limiting our understanding of the common course of treatment and associated characteristics. Therefore, using an 18-20-year follow-up of people with heroin dependence, we aimed to identify i) distinct trajectories of treatment use, ii) whether baseline characteristics predict treatment trajectory group membership, and ii) if group membership is associated with characteristics at 18-20-years post-baseline.

Different Tokes for Different Folks: Use of Cannabis Products Among a Longitudinal Cohort of People with Heroin Dependence.

Unlabelled: Co-occurring cannabis use is common among those with opioid use disorder (OUD), but the extent to which it is harmful may be due to its preparation and concentration of various cannabinoids. The current study aimed to examine the prevalence of, and long-term associations with, the use of varying cannabis products among a naturalistic longitudinal cohort of people with heroin dependence. A total of 615 people, most of whom were entering treatment, were recruited to the Australian Treatment Outcome Study (ATOS) in 2001-2002.

A systematic review of the efficacy, effectiveness and cost-effectiveness of workplace-based interventions for the prevention and treatment of problematic substance use.

Unlabelled: Employee alcohol and other drug use can negatively impact the workplace, resulting in absenteeism, reduced productivity, high turnover, and worksite safety issues. As the workplace can influence employee substance use through environmental and cultural factors, it also presents a key opportunity to deliver interventions, particularly to employees who may not otherwise seek help. This is a systematic review of workplace-based interventions for the prevention and treatment of problematic substance use.

A retrospective chart review of trauma-related documentation in an Australian substance use treatment service.

Introduction: Trauma exposure among clients of substance use treatment services is almost universal and rates of trauma-related symptoms are correspondingly high. This study examined one aspect of clinical care-clinical documentation-and sought to systematically assess the documentation of trauma-related comorbidities and their treatment in a substance use treatment setting.

Methods: A retrospective chart review was conducted on a sample of 300 patient records in a public substance use treatment setting.

Implementation of a Multi-Modal Training Program for the Management of Comorbid Mental Disorders in Drug and Alcohol Settings: Pathways to Comorbidity Care (PCC).

Objectives: We aimed to evaluate the impact of the Pathways to Comorbidity Care (PCC) training program for alcohol and other drugs (AOD) clinicians to improve the management of comorbidity.

Methods: A controlled before-and-after study using PCC training was conducted across 6 matched sites in Australia including 35 clinicians. Controls received standard workplace training.

New Australian guidelines for the treatment of alcohol problems: an overview of recommendations.

Of Recommendations And Levels Of Evidence: Chapter 2: Screening and assessment for unhealthy alcohol use Screening Screening for unhealthy alcohol use and appropriate interventions should be implemented in general practice (Level A), hospitals (Level B), emergency departments and community health and welfare settings (Level C). Quantity-frequency measures can detect consumption that exceeds levels in the current Australian guidelines (Level B). The Alcohol Use Disorders Identification Test (AUDIT) is the most effective screening tool and is recommended for use in primary care and hospital settings.

Weeding out the truth: a systematic review and meta-analysis on the transition from cannabis use to opioid use and opioid use disorders, abuse or dependence.

Background And Aims: The idea that cannabis is a 'gateway drug' to more harmful substances such as opioids is highly controversial, yet has substantially impacted policy, education and how we conceptualize substance use. Given a rise in access to cannabis products and opioid-related harm, the current study aimed to conduct the first systematic review and meta-analysis on the likelihood of transitioning from cannabis use to subsequent first-time opioid use, opioid use disorders (OUD), dependence or abuse.

Methods: Following Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines, pubMed/MEDLINE, Scopus, EMBASE, PsychINFO, Cochrane Central Register of Controlled Trials and Informit Health Collection were searched for full-text articles assessing the likelihood of transitioning from cannabis to subsequent opioid use, and from opioid use to OUD, abuse or dependence given prior cannabis use.

Assessing patient information and decision-support needs in problematic alcohol use and co-occurring depression to inform shared decision-making interventions.

The authors assessed the informational and decision-support needs of patients, families, and clinicians when deciding on treatment for problematic alcohol use and depression. Patients (n = 56), family members (n = 16), and clinicians (n = 65) with experience deciding on treatment for problematic alcohol use and depression were eligible. Participants completed an online decisional needs assessment survey.

Substance use, mental disorders and COVID-19: a volatile mix.

Purpose Of Review: The COVID-19 pandemic and associated restrictions have uniquely and disproportionately affected vulnerable populations. This review summarizes recent evidence on the relationship between psychiatric disorders, substance use disorders and COVID-19, highlighting acute and long-term risks, pharmacotherapy interactions and implications regarding appropriate and timely evidence-based treatment.

Recent Findings: Evidence points to a complex relationship between psychiatric and substance use disorders and COVID-19.

Shared decision-making among people with problematic alcohol/other drug use and co-occurring mental health conditions: A systematic review.

Introduction And Aims: Over half of people presenting to alcohol/other drug (AOD) treatment services also have a mental health condition. Guidelines support numerous viable treatment options, meaning that treatment decisions need to be evidence based and patients' preferences need to be considered. Shared decision-making (SDM) facilitates evidence- and preference-based decisions and is well researched in other health-care areas.

Australian treatment outcome study: protocol for the 18-20-year follow-up of a prospective longitudinal cohort examining the natural history of heroin dependence and associated mortality, psychiatric and physical health, and health service use.

Introduction: Opioid dependence is a global health priority, currently making the biggest contribution to drug-related deaths. The chronic, long-term persistence of heroin dependence over the life course requires investigation in prospective longitudinal studies, to better understand patterns and predictors of remission and relapse, as well as the impact of changes in substance use on a range of physical and mental health outcomes. Such knowledge is critical in order to identify modifiable risk factors that can be targeted for intervention.

Modelling Long-Term Joint Trajectories of Heroin Use and Treatment Utilisation: Findings from the Australian Treatment Outcome Study.

Background: Heroin is currently contributing to the worst drug addiction epidemic in United States history; recent rates of use, dependence and death have also increased dramatically in parts of Europe. An improved understanding of the long-term relationship between heroin use and treatment utilisation is essential to inform both clinical and public health responses. We aimed to identify i) joint trajectories of heroin use and treatment utilisation, ii) predictors of joint group membership, and iii) outcomes associated with joint group membership; over 10-11 years among a cohort of Australians with heroin dependence.

Rumination and problematic substance use among individuals with a long-term history of illicit drug use.

Background: Rumination is a cognitive process that is implicated in the development and maintenance of various forms of psychopathology, including problematic substance use. Most studies on the role of rumination in substance use have been conducted among community samples or individuals with alcohol use disorders and have predominately focused on overall rumination rather than differentiating between its subtypes, ruminative brooding and ruminative reflection. The current study therefore aimed to investigate i) whether rumination subtypes are associated with problematic substance use among people with a long-term history of illicit drug use independently of related psychological disorders (depression and post-traumatic stress disorder [PTSD]), and ii) whether gender moderates these relationships.

Conditional probabilities of substance use disorders and associated risk factors: Progression from first use to use disorder on alcohol, cannabis, stimulants, sedatives and opioids.

Background: Relatively little is known about factors that may lead to the development of a substance use disorder (SUD), across a range of drug classes. This study aimed to identify factors that predict the likelihood of transition from use to SUD and the speed with which this may occur at the population level, with a focus on the impact of pre-existing mental disorders.

Methods: Data were collected as part of the 2007 Australian National Survey of Mental Health and Wellbeing, a nationally representative survey of 8841 Australian adults.

The long-term impact of post traumatic stress disorder on recovery from heroin dependence.

The high prevalence of post traumatic stress disorder (PTSD) among people with heroin dependence and its impact on short term outcomes has been well established. The impact of PTSD on long-term recovery is, however, unknown. This paper examines the impact of current and lifetime PTSD on long-term recovery from heroin dependence among participants who took part in the 11-year follow-up of the Australian Treatment Outcome Study (ATOS), a prospective naturalistic longitudinal study of 615 people with heroin dependence recruited from Sydney, Australia, in 2001-2002.

Trajectories of heroin use: 10-11-year findings from the Australian Treatment Outcome Study.

Aims: To identify trajectories of heroin use in Australia, predictors of trajectory group membership and subsequent outcomes among people with heroin dependence over 10-11 years.

Design: Longitudinal cohort study.

Setting: Sydney, Australia.