The stigmatisation of 'ice' and under-reporting of meth/amphetamine use in general population surveys: A case study from Australia

Professional stigma towards clients with methamphetamine use disorder - a qualitative study

Background

Methamphetamine use disorder (MUD) is associated with poor health outcomes. Pharmacists play a role in delivery of substance use treatment, with several studies having examined their attitudes to people with opioid use disorder, but little is known about their attitude towards people with MUD. This study aimed to explore pharmacists' perspectives on the provision of services to clients with MUD.

Methods

A convenience sampling strategy was used to recruit community pharmacists across Sydney, Australia. Semi structured interviews examined views and ideas of pharmacists surrounding the treatment and management of MUD, followed by coding of transcribed interview data by all members of the research team.

Results

Nineteen pharmacists completed the interviews. The main theme identified was stigma held by healthcare professionals. The almost unanimous perception amongst pharmacists was fear and apprehension towards people with MUD, including underlying assumptions of criminality, misinformation regarding people with MUD, and lack of education and knowledge surrounding MUD.

Conclusion

A substantial amount of stigma towards people with MUD was found in this study. Negative attitudes by healthcare professionals can perpetuate healthcare disparities and impede the accessibility of future treatment programs for people with MUD. Appropriate educational interventions on MUD for pharmacists are needed.

Effects of Positive versus Negative Framing on Stigma toward Individuals Recovering from Methamphetamine Use Disorder during Randomized Brief Video Exposure

Eighty-two Australians (mean age = 30.07; 61% female) were blindly randomized to view either a video edited to depict a positive or negative presentation of individuals in recovery from methamphetamine use disorder. Participants completed the Social Distance Scale for Substance Users, Dangerousness Scale for Substance Users and Affect Scale for Substance Users before and after video exposure. Following video exposure, those exposed to the positive video portrayal reported lower desire for social distance (p < .001), lower perceptions of dangerousness (p = .011), and more favorable affective reactions (p < .001). Participants' previous level of contact with the target group did not predict baseline stigma or moderate the experimental effect. Participants' qualitative responses to the experiment were assessed via content analysis and indicated mainly positive or ambivalent attitudes, unchanged by the video; however, 18% of those receiving the positive video reported attitudes becoming more sympathetic/favorable. Findings suggest that media depictions which include people with methamphetamine use disorder displaying friendliness and recovery narratives may improve community perceptions of people recovering from methamphetamine use disorder, and conversely, unsmiling portrayals focusing on harm done to others increases desire for social distance and perceived dangerousness.

Outrage and algorithms: Shifting drug-related stigma in a digital world

Illicit drug dependence is one of the most stigmatised health conditions worldwide and the harmful impacts of stigma for people who use drugs are well documented. The use of stigmatising language about drugs in traditional media is also well documented. The increasing use of digital media platforms has revolutionised the way we communicate, and extended the reach of our messages. However, there are issues specific to the ways in which these platforms operate that have the potential to increase drug-related stigma. This paper outlines the importance of language, narrative, and imagery in reducing this stigma. It discusses the challenges digital media platforms present to achieving this goal, including the use of engagement strategies that trigger fear and increase stigma, the potential for amplifying stigmatising messages by using algorithms, and the potential for dissemination of misinformation. Key strategies to frame conversations about drug use are presented including 1) appeal to values of fairness and equity rather than scaring people; 2) avoid correcting misinformation as it strengthens unhelpful stigmatising frames of drug use; and 3) create a new narrative, focusing on the diversity of experiences of people who use drugs. Internationally we are at a critical juncture with respect to drug policy reform, and efforts to reduce drug-related stigma are central to building support for these reforms. The extensive reach of digital media platforms represents an important opportunity to communicate about illicit drug use. The challenge is to do so in a way that minimises stigma. If we are to achieve change, a narrative that puts values, people, health care and equity at the centre of the conversation is critical.

Shifts in the Australian public's opinions towards alcohol policies: 2004-2019

INTRODUCTION

After a period of stagnation, alcohol policy in Australia has received increased attention in the past decade, with Sydney's lockout laws and Queensland's restrictions on trading hours garnering media attention. This study will investigate any changing trends in support towards alcohol policy and identify any demographic-specific shifts.

METHODS

Respondents from the National Drug Strategy Household Survey (conducted every 3 years from 2004 to 2019) were asked to gauge their level of support for 16 alcohol policy items proposed to reduce the problems associated with excessive alcohol use. Mean levels of support for various policy options, as well as demographic predictors of support, were assessed.

RESULTS

After an increase from 2004 to 2013, support for more evidence-based policies on alcohol (e.g., restricting the availability of alcohol) has decreased since 2013. Support for policy items that focus less on the restriction of the availability of alcohol and more on education remained relatively stable in comparison. While demographic groups continue to vary in their extent of support, shifts appear to be occurring fairly uniformly across sex, age, states and drinking groups.

DISCUSSION AND CONCLUSIONS

Support for public health-oriented alcohol policies has been decreasing since 2013. The introduction of high-profile policies and less of a media focus on alcohol may be contributing to decreases in support.

A multi-country survey on access to healthcare and treatment services among individuals with critical medical care needs during the first wave of the pandemic

BACKGROUND

Healthcare services were significantly interrupted during the early phase of the COVID-19 pandemic. The aim of the present study was to determine the associations between sociodemographic factors and healthcare access during the first wave of the COVID-19 pandemic among individuals with critical care needs.

METHODS

This was a secondary analysis of the data of 5,156 participants recruited from 152 countries during the first wave of the COVID-19 pandemic. The dependent variables were self-reported difficulty of access to health care, challenges with obtaining medication, and the use of alternative medical services. The independent variables were age at last birthday; sex at birth, level of education, employment status and the macro-social vulnerability status. The confounding variable was the country income level. Three multivariable logistic regression analyses were conducted to determine the associations between the dependent variables and the independent variables after adjusting for the confounder.

RESULTS

Difficulty accessing health care services and obtaining medications was experienced by 1922 (37.3%) and 3746 (72.7%) participants respectively. Also, 1433 (27.8%) used alternative medical care. Retirees (AOR:1.59), unemployed (AOR:1.198), people living with HIV (AOR:2.36) and at increased risk of COVID-19 (AOR:2.10), people who used drugs (AOR:1.83) and transacted sex (AOR:1.971) had significantly higher odds for reporting difficulty with access to health care. Males (AOR:1.23), respondents with secondary level of education (AOR:1.39), retirees (AOR:2.19), unemployed (AOR:1.47), people living with HIV (AOR:2.46), people who used drugs (AOR:1.79), transacted sex (AOR:2.71) and those who might be (AOR: 1.66) and were at (AOR: 2.3) increased risk of severe COVID-19 had significantly higher odds for reporting difficulty with access to medications. People who used drugs (AOR:2.093) transacted sex (AOR:1.639), who might be (AOR: 1.211) and were at (AOR: 1.511) increased risk of severe COVID-19, and who had difficulty accessing usual healthcare (AOR: 9.047) and obtaining medications (AOR:2.16) had significantly higher odds of reporting alternative medical care use. People living with HIV (AOR:0.562) had significantly lower odds of using alternative medical care.

CONCLUSION

We identified populations who had challenges with access to healthcare and obtaining medications used alternative medical care except for people living with HIV. Priority attention should be given to alternative medical care use during future health pandemics.

Review article: Clinical manifestations and outcomes of chronic nitrous oxide misuse: A systematic review

Recreational nitrous oxide (N₂ O) use is widespread, and complications associated with its use are increasingly common. We sought to identify risk factors, clinical features and outcomes in individuals presenting with effects of chronic N₂ O abuse to develop an approach to clinical assessment and management. A systemic literature review was completed with searches conducted across EMBASE, MEDLINE, PSYCINFO and Cochrane databases. Our search strategy identified 612 studies, 105 met inclusion criteria, and 10 were added via hand search. Subjects from 24 case series and 91 case reports were typically in their 20s, using over 100 bulbs daily for several months. Neurological presentations, including sensory change, gait disturbance or weakness, were characteristic. Serum Vitamin B12 was normal or raised in 133 out of 243 case series subjects and 37 out of 84 reports. Serum homocysteine and methylmalonic acid were usually raised. Macrocytosis and anaemia were not commonly seen. MRI findings were abnormal with dorsal column change where specified, typically involving the cervical spine. Nerve conduction studies mostly reported a sensorimotor polyneuropathy. B12 replacement was the treatment of choice and partial recovery was most reported. This review highlights the dose-dependent nature of chronic N₂ O toxicity and recognises functional B12 deficiency as the cause. As B12 is often normal, homocysteine and methylmalonic acid are important biomarkers of disease. An approach to diagnosis is offered but requires validation in prospective studies. Research exploring B12 and methionine therapy is required to refine management.

Did the under-reporting of meth/amphetamine use increase in a general population survey in Australia as negative media coverage increased?

AIM

To test (1) if there was a change in self-reported lifetime prevalence of meth/amphetamine use by birth cohort and (2) if the extent of under-reporting of meth/amphetamine use was associated with the proportion of the population who nominated meth/amphetamine as a drug problem.

DESIGN

Observational study using seven waves of repeated cross-sectional nationally representative household surveys between 2001 and 2019.

SETTING

Australia.

PARTICIPANTS

Participants were from three birth cohorts: 1951-60 (age 68-77 at the 2019 survey; n = 29 458; 55% female), 1961-1970 (age 58-67; n = 29 859; 57% female) and 1971-1980 (age 48-57; n = 28 758; 59% female). Data were weighted to align the sample to the Australian population.

MEASUREMENTS

Past year meth/amphetamine use; under-reporting of lifetime meth/amphetamine use in each birth cohort, year and survey stratum (operationalised as the difference between self-reported lifetime prevalence in 2001 and that of each subsequent year); proportion of the population who nominated meth/amphetamine as a drug problem in each birth cohort, year and survey stratum. Under-reporting was regressed on the proportion of people holding negative attitude towards meth/amphetamine. Survey year and birth cohort were adjusted for.

FINDINGS

Between 2001 and 2019, the lifetime prevalence of meth/amphetamine decreased from 6.1% (95% CI = 5.3-6.9) to 1.7% (95% CI = 1.2-2.2) in the 1951-1960 birth cohort (p < 0.001), from 13.0% (95% CI = 12.0-14.1) to 4.4% (95% CI = 3.7-5.2) in the 1961-1970 birth cohort (p < 0.001) and from 21.4% (95% CI = 19.9-22.9) to 11.2% (95% CI = 10.0-12.4) in the 1971-1980 birth cohort (p < 0.001). The proportion who nominated meth/amphetamine as a 'drug problem' increased significantly in all three cohorts (all p < 0.001) and the degree of under-reporting of meth/amphetamine use was significantly associated with proportion of people who nominated meth/amphetamine as the 'drug problem' (b = 0.09, SE = 0.01, p < 0.001).

CONCLUSION

In Australia, the actual prevalence of lifetime meth/amphetamine use may be two- to fourfold higher than that estimated in the most recent national household surveys (2019). The level of under-reporting is strongly associated with increasing negative attitudes towards methylamphetamine and d-amphetamine use over the same period.

Trends in methamphetamine use, markets and harms in Australia, 2003-2019

INTRODUCTION

To describe trends in methamphetamine use, markets and harms in Australia from 2003 to 2019.

METHODS

Data comprised patterns of use and price from sentinel samples of people who inject drugs and who use MDMA/other illicit stimulants and population-level amphetamine-related police seizures, arrests, hospitalisations, treatment episodes and deaths from approximately 2003 to 2019. Bayesian autoregressive time-series models were analysed for: no change; constant rate of change; and change over time differing in rate after one to three changepoints. Related indicators were analysed post hoc with identical changepoints.

RESULTS

The percentage of people who inject drugs reporting weekly use increased from 2010 to 2013 onwards, while use among samples of people who regularly use ecstasy and other illicit stimulants decreased. Seizures and arrests rose steeply from around 2009/10 to 2014/15 and subsequently plateaued. Price increased ($15.9 [95% credible interval, CrI $9.9, $28.9] per point of crystal per year) from around 2009 to 2011, plateauing and then declining from around 2017. Hospitalisation rates increased steeply from around 2009/10 until 2015/16, with a small subsequent decline. Treatment also increased (19.8 episodes [95% CrI 13.2, 27.6] with amphetamines as the principal drug of concern per 100 000 persons per year) from 2010/11 onwards. Deaths involving amphetamines increased (0.285 per 100 000 persons per year) from 2012 until 2016.

DISCUSSION AND CONCLUSIONS

These findings suggest that problematic methamphetamine use and harms escalated from 2010 to 2012 in Australia, with continued demand and a sustained market for methamphetamine.

The gendered relationship between illicit substance use and self-harm in university students

PURPOSE

To estimate associations between multiple forms of substance use with self-harming thoughts and behaviours, and to test whether gender is an effect modifier of these associations, both independently and along with perceived risk of cannabis use.

METHODS

Data were drawn from the 2018 Norwegian Students' Health and Wellbeing Study (SHoT 2018). A national sample of n = 50,054 full-time Norwegian students (18-35 years) pursuing higher education completed a cross-sectional student health survey, including questions on past-year self-harm: non-suicidal thoughts of self-harm, non-suicidal self-harm, suicidal thoughts, and suicide attempt. Students reported their frequency of past-year alcohol use (range: never to ≥ 4 times/ week), illicit substance consumption, and perceived risk of cannabis use. The AUDIT and CAST screening tools measured problematic alcohol and cannabis consumption, respectively. We used logistic regression modelling adjusted for age, symptoms of depression and anxiety, and financial hardship (analytic sample range: n = 48,263 to n = 48,866).

RESULTS

The most frequent alcohol consumption category (≥ 4 times/ week) was nearly always associated with more than a two-fold increased likelihood of self-harm. Less frequent alcohol consumption was associated with reduced odds of suicidal thoughts [monthly or less: OR = 0.87 (95% CI: 0.75-1.00), 2-4 times/month: OR = 0.79 (95% CI: 0.69-0.91), and 2-3 times/ week: OR = 0.83 (95% CI: 0.71-0.98)]. Problematic alcohol consumption was associated with most outcomes: odds ranging from 1.09 (95% CI: 1.01-1.18) for suicidal thoughts to 1.33 (95% CI: 1.00-1.77) for suicide attempt. There was evidence of multiple illicit substance by gender interactions: consumption of all but one illicit substance category (other drug use) was associated with all four forms of self-harm for women, but findings among men were less clear. Among men, only one illicit substance category (stimulant) was associated with most forms of self-harm. Women, but not men, who perceived cannabis use as a health risk were more likely to experience non-suicidal thoughts as cannabis consumption increased, and with harmful consumption patterns.

CONCLUSION

Frequent alcohol consumption is associated with increased risk of self-harm and suicidality for young women and men. Associations between illicit substance use and self-harm and suicidality appear stronger in women compared to men.

Changes in Adolescents' Psychosocial Functioning and Well-Being as a Consequence of Long-Term COVID-19 Restrictions

This work studied self-reports from adolescents on how the COVID-19 pandemic has changed their behaviors, relationships, mood, and victimization. Data collection was conducted between September 2020 and February 2021 in five countries (Sweden, the USA, Serbia, Morocco, and Vietnam). In total, 5114 high school students (aged 15 to 19 years, 61.8% females) responded to our electronic survey. A substantial proportion of students reported decreased time being outside (41.7%), meeting friends in real life (59.4%), and school performance (30.7%), while reporting increased time to do things they did not have time for before (49.3%) and using social media to stay connected (44.9%). One third of the adolescents increased exercise and felt that they have more control over their life. Only a small proportion of adolescents reported substance use, norm-breaking behaviors, or victimization. The overall COVID-19 impact on adolescent life was gender-specific: we found a stronger negative impact on female students. The results indicated that the majority of adolescents could adapt to the dramatic changes in their environment. However, healthcare institutions, municipalities, schools, and social services could benefit from the findings of this study in their work to meet the needs of those young people who signaled worsened psychosocial functioning, increased stress, and victimization.

New psychoactive substances in Australia: patterns and characteristics of use, adverse effects, and interventions to reduce harm

PURPOSE OF REVIEW

To summarize the most recent peer-review literature on new psychoactive substances (NPS) within Australia.

RECENT FINDINGS

NPS use among the general Australian population is low, yet more pervasive among specific subpopulations. There is considerable heterogeneity among people who use NPS, however, overall, they are not unique from those who use more established illicit drugs. NPS have been shown to be highly adulterated, used as contaminants, variable in dose, and changeable as to the specific substances available over time. Further, analyses of coroners' cases highlight the importance of consumer understanding of NPS effects, particularly where they differ substantially to their more traditional illicit drug counterparts (e.g., synthetic vs. plant cannabinoids). One study posited that legislative approaches to NPS have been (partially) effective in reducing harms, and there are new systems being established to identify NPS-related health harms.

SUMMARY

There have been few studies recently published on NPS in Australia (n = 17), however, findings mostly align with the international literature with respect to the rapidly changing nature of the NPS market, the use of NPS as adulterants, and associated harms. These themes highlight the need for proactive, novel approaches to rapidly identify, and respond to emerging drugs of concern.

Interpol review of controlled substances 2016-2019

This review paper covers the forensic-relevant literature in controlled substances from 2016 to 2019 as a part of the 19th Interpol International Forensic Science Managers Symposium. The review papers are also available at the Interpol website at: https://www.interpol.int/content/download/14458/file/Interpol%20Review%20Papers%202019.pdf.

Motivations for crystal methamphetamine-opioid co-injection/co-use amongst community-recruited people who inject drugs: a qualitative study

Aims

We report on motivations for crystal methamphetamine-opioid co-use/co-injection through narratives of people who inject drugs during a period of increased crystal methamphetamine use reporting in Australia.

Methods

Fourteen in-depth interviews were undertaken with selected participants (12 male, 2 female) from the Melbourne Injecting Drug User Cohort Study, including those in and out of opioid substitution therapy (OST).

Results

The main motivations for co-use reported by participants were as follows: (1) that heroin could be used to reduce the negative side effects of heavy crystal methamphetamine use, particularly during the ‘comedown’ phase; (2) that small quantities of crystal methamphetamine used with heroin could prolong the intoxication effect of heroin, and hence the time before opioid withdrawal; (3) that co-injection of crystal methamphetamine and heroin produced a more desirable intoxication effect than using either substance on its own and; (4) that crystal methamphetamine provided a substitute ‘high’ for heroin after commencing OST treatment.

Conclusions

Co-use of methamphetamine and opioids has been used by people who inject drugs to facilitate intoxication, sometimes as the result of ineffective opioid substitution therapy (OST) treatment and perceived lack of pleasure after stabilisation on OST treatment.

Exploring How People Affected by Methamphetamine Exchange Social Support Through Online Interactions on Facebook: Content Analysis

BACKGROUND

Methamphetamine is an illicit and addictive psychostimulant that remains to be a significant cause of economic burden in Australia. Social media is increasingly being used by nongovernment organizations and health services to encourage the growth of social support networks among people with health-related issues. Several studies have investigated the utility of social media in providing social support to groups of people with health-related issues. However, limited research exists that explores how people who have been directly or indirectly affected by methamphetamine use social media for social support.

OBJECTIVE

This study aimed to determine the types of social support being sought and provided by people affected by methamphetamine when interacting with others on a Facebook page.

METHODS

A total of 14,777 posts were collected from a Facebook page and transferred into an Excel document for content analysis. The posts were manually coded into categories of social support using an adapted version of Cutrona and Suhr's Social Support Behavior Code. Posts could be coded into more than one category. Saturation was reached at 2000 posts, which were used to draw inferences.

RESULTS

Emotional support was the most offered support type, with 42.05% (841/2000) of posts providing this form of support. This is followed by esteem support, which was provided in 40.40% (808/2000) of posts. Overall, 24.20% (484/2000) of posts offered informational support. Network support and tangible support were the least offered support types, with 2.25% (45/2000) and 1.70% (34/2000) of posts offering these types of support, respectively.

CONCLUSIONS

This study suggests that online social support groups can be effective in challenging stigma by encouraging people affected by methamphetamine to connect with each other and talk about their struggles. This in turn represents an important step toward successful rehabilitation.

Cannabis use patterns at the dawn of US cannabis reform

In the United States (US), three in 10 cannabis users develop cannabis use disorder (CUD). Usage patterns in line with CUD may be associated with socio-economic disadvantage, and other negative effects. Thus, research on CUD is paramount. To provide understanding around CUD, it is necessary to detail granular cannabis usage preferences, as some risk from cannabis use may be mitigated through informed behavioral choices by users. We describe cannabis usage preferences among US Global Drug Survey (GDS) respondents, primarily young men. The cross-sectional web-based GDS (2017) was completed by 8345 US-resident respondents (median age = 23, Interquartile Range 19–32; % male = 75.48) who reported cannabis use. Of those who reported cannabis use in the past year, most (78%) reported consuming their first joint more than an hour after waking, and about half the sample (49%) had their last joint 1–2 h before bed. Cannabis was used for a median of 250 days in the last year (almost daily). Respondents spent a median of four hours a day stoned when cannabis was used. High potency herbal cannabis was the preferred variant by 62% of participants. We suggest that frequent use of cannabis may increase risk of health harms, and highlight the need to mitigate problematic use. With the rapidly developing US cannabis market, possibly problematic usage patterns may indicate potential for CUD especially within young men.

Attitudes and Perceived Social Norms toward Drug Use among Gay and Bisexual Men in Australia

BACKGROUND

Gay and bisexual men (GBM) report distinctive patterns and contexts of drug use, yet little has been published about their attitudes toward drug use.

OBJECTIVES

We developed measures of attitudes and perceived social norms toward drug use, and examined covariates of more accepting attitudes and norms among GBM in Australia.

METHODS

We analyzed baseline data from the Following Lives Undergoing Change (Flux) study. Flux is an online prospective observational study of drug use among Australian GBM. We used principal components factor analysis to generate two attitudinal scales assessing "drug use for social and sexual enhancement" and "perceptions of drug risk." A third perceived social norms scale examined "acceptability of drug use among gay friends."

RESULTS

Among 2,112 participants, 61% reported illicit drug use in the preceding six months. Stronger endorsement of drug use for social and sexual engagement and lower perceptions of drug risk were found among men who were more socially engaged with other gay men and reported regular drug use and drug use for sex. In multivariate analyses, all three scales were associated with recent drug use (any use in the previous six months), but only the drug use for social and sexual enhancement scale was associated with regular (at least monthly) use.

CONCLUSIONS

Drug use and sex are difficult to disentangle for some GBM, and health services and policies could benefit from a better understanding of attitudinal and normative factors associated with drug use in gay social networks, while recognizing the role of pleasure in substance use.

Gaps in the ice: Methamphetamine in Australia; its history, treatment, and ramifications for users and their families

It is now well-established that Australia has a significant issue with methamphetamine. Recent dramatic changes in manufacturing have led to significant shifts in both the patterns of use and the relative purity of this illicit drug, with the crystalline form of methamphetamine commonly referred to as 'ice'. Excessive use not only impacts on those taking the drug, but also takes a heavy toll on their families. With few effective treatment options currently available, there is a strong focus on developing replacement pharmacotherapies and examining the efficacy of outpatient counselling and residential treatment options. Recent research in addiction care supports the positive impact that families of users can have on both treatment and recovery for their loved ones. Despite this recognition, there is little current research looking at the experiences of families of users of the uniquely problematic drug methamphetamine. This paper outlines the historical narrative that has led to the current worldwide phenomenon of ice use and explores contemporary directions of research into its impact and potential treatments. In doing so, it outlines the relatively unexplored impact of ice on families and highlights a current need for nursing research into their experiences living with loved ones using the drug.

Evaluation of Amphetamine-Related Hospitalizations and Associated Clinical Outcomes and Costs in the United States

IMPORTANCE

Despite indications of increasing amphetamine availability and psychostimulant deaths in the United States, evidence across data sources is mixed, and data on amphetamine-related hospitalizations are lacking.

OBJECTIVE

To clarify trends in amphetamine-related hospitalizations and their clinical outcomes and costs in the United States.

DESIGN, SETTING, AND PARTICIPANTS

This repeated, cross-sectional study used hospital discharge data from the Healthcare Cost and Utilization Project National Inpatient Sample. The nationally representative sample included US adults (n = 1 292 300) who had amphetamine-related hospitalizations between January 1, 2003, and December 31, 2015. Multivariable logistic and Poisson regression models were used to examine in-hospital mortality and length of stay. Analysis of these data was conducted from November 2017 to August 2018.

EXPOSURE

Amphetamine dependence or abuse or amphetamine poisoning.

MAIN OUTCOMES AND MEASURES

Annual hospitalizations, in-hospital mortality, length of stay, transfer to another facility, and costs.

RESULTS

Over the 2003 to 2015 study period, there were 1 292 300 weighted amphetamine-related hospitalizations. Of this population, 541 199 (41.9%) were female and 749 392 (58.1%) were male, with a mean age of 37.5 years (95% CI, 37.4-37.7 years). Amphetamine-related hospitalizations, compared with other hospitalizations, were associated with age younger than 65 years (98.0% vs 58.0%; P < .001), male sex (60.3% [95% CI, 59.7%-60.8%] vs 41.1% [95% CI, 40.9%-41.3%]), Medicaid coverage (51.2% [95% CI, 49.8%-52.7%] vs 17.8% [95% CI, 17.5%-18.1%]), and residence in the western United States (58.5% [95% CI, 55.9%-61.0%] vs 18.9% [95% CI, 18.0%-19.8%]). Amphetamine-related hospitalizations declined between 2005 and 2008, and then increased from 55 447 hospitalizations (95% CI, 44 936-65 959) in 2008 to 206 180 hospitalizations (95% CI, 95% CI, 189 188-223 172) in 2015. Amphetamine-related hospitalizations increased to a greater degree than hospitalizations associated with other substances. Adjusted mean length of stay (5.9 [95% CI, 5.8-6.0] vs 4.7 [95% CI, 4.7-4.8] days; P < .001), transfer to another facility (26.0% [95% CI, 25.3%-26.8%] vs 18.5% [95% CI, 18.3%-18.6%]; P < .001), and mean in-hospital mortality (28.3 [95% CI, 26.2-30.4] vs 21.9 [95% CI, 21.6-22.1] deaths per 1000 hospitalizations; P < .001) were higher for amphetamine-related than other hospitalizations. Annual hospital costs related to amphetamines increased from $436 million (95% CI, $312 million-$559 million) in 2003 to $2.17 billion (95% CI, $1.95 billion-$2.39 billion) by 2015.

CONCLUSIONS AND RELEVANCE

Given that amphetamine-related hospitalizations and costs substantially increased between 2003 and 2015, pharmacologic and nonpharmacologic therapies for amphetamine use disorders and a coordinated public health response are needed to curb these rising rates.

Wastewater-based epidemiology in low Human Development Index states: bias in consumption monitoring of illicit drugs

Wastewater-based epidemiology is a promising approach worldwide, and its application is currently being developed in non-advanced economies. This technology, based on known toxicokinetic data initially used to detect illicit drugs in well-managed and maintained local sewer networks, has been extended to assess other products such as pesticides, alcohol, flame retardants, nicotine, and other substances. This technology is also used in countries with non-advanced economies. The present review aims to support future wastewater-based epidemiology in such countries by providing toxicokinetic data for locally used narcotic drugs that are expected or known to be emerging in developed countries, outlining the excretion differences due to human polymorphism, and summarising the practical obstacles due to the coverage, maintenance efficiency, or type of local sewage network.Case study feedback from Martinique is presented as an example; the Martinique field study complies with the Organisation for Economic Co-operation and Development standards for health issues, but not with regard to population and urban dynamics.

Amphetamine use in the fourth decade of life: Social profiles from a population-based Australian cohort

INTRODUCTION AND AIMS

To estimate the prevalence and frequency of amphetamine use in a cohort of Australians aged in their mid-30s.

DESIGN AND METHODS

Cross-sectional analysis of wave 10 data collected in 2014 from the Victorian Adolescent Health Cohort Study: a sample of 1435 persons originally selected in a stratified, random community survey of secondary school students from the state of Victoria that commenced in 1992. Weighted multinomial regression models were used to evaluate the social, health and other substance-use correlates of lifetime and current (12-month) amphetamine use and current frequency of use.

RESULTS

Lifetime amphetamine use was reported by 23.2% (95% confidence interval 21.0-25.5%) of respondents, and 6.5% (95% confidence interval 5.2-7.8%) reported current (12-month) use. A quarter (26%) of those currently using amphetamines, 1.7% (95% confidence interval 1.0-2.4%) of all respondents, reported frequent (at least weekly) use. Men reported greater amphetamine use than women. Current amphetamine use was associated with disrupted family circumstances, socioeconomic adversity, polydrug use and high levels of drug use within the social and familial environment. Frequent use was associated with greater likelihood of multiple adversity, unemployment, anxiety disorders and use of mental health services.

DISCUSSION AND CONCLUSIONS

The current results show that lifetime, current and frequent amphetamine use was common amongst adults in the fourth decade of life in this cohort, and associated with the experience of social disadvantage, poor mental health and living in a social context in which drug use is the norm.

Characteristics of Australian adolescent females in residential treatment who report using methamphetamines

INTRODUCTION AND AIMS

To investigate factors associated with methamphetamine use in adolescent females referred to an Australian residential treatment service.

DESIGN AND METHODS

A mixed-methods explanatory sequential design was undertaken. Cross-sectional analysis of existing pre-treatment data for adolescent females aged 13-18 years (median 16.48 years) attending a treatment program between 2009 and 2015 (n = 267) was undertaken, followed by a focus group and in-depth interviews of key staff.

RESULTS

Female methamphetamine-users (n = 127, 47.6%) were significantly more likely than non-methamphetamine-users at pre-treatment to be in unstable living arrangements, where they moved frequently (P = 0.025), lived in more unstable (not rented or privately owned) accommodation (P = 0.012) and had problematic family situations (P = 0.004). They were more likely than non-methamphetamine-users to be to be poly-drug users (P < 0.001) and to have ever attempted suicide (P = 0.029). Cumulative trauma by someone known to the adolescent was the main predictor for female methamphetamine use (odds ratio 3.077). Qualitative data provided context and depth to quantitative findings, with an emphasis on trauma as a precursor to methamphetamine use. The qualitative interviews also highlighted changes made in service provision, given the increasing rates of methamphetamine use.

DISCUSSION AND CONCLUSIONS

High levels of trauma and mental health problems in this population support the notion that traumatic childhood experiences are strongly associated with problematic alcohol and other drug use, particularly, methamphetamine use, at a young age. Increased attention to decreasing family violence, abuse and neglect is required and in clinical practice, a trauma-informed model of care is recommended.

Exploring the perils of cross-national comparisons of drug prevalence: The effect of survey modality

BACKGROUND

There is significant interest in comparing countries on many different indicators of social problems and policies. Cross-national comparisons of drug prevalence and policies are often hampered by differences in the approach used to reach respondents and the methods used to obtain information in national surveys. The paper explores how much these differences could affect cross-country comparisons.

METHODS

This study reports prevalence of drug use according to the most recent national household survey and then adjusts estimates as if all national surveys used the same methodology. The analysis focuses on European countries for which the European Monitoring Centre for Drugs and Drug Addiction reports data, the United States, Canada, and Australia. Adjustment factors are based on US data.

FINDINGS

Adjusting for modality differences appears likely to modestly affect the rankings of countries by prevalence, but to an extent that could be important for comparisons. For example, general population surveys suggest that the US had some of the highest cannabis and cocaine prevalence rates circa 2012, but this is partially driven by the use of a modality known to produce higher prevalence estimates. This analysis shows that country rankings are partly an artifact of the mode of interview used in national general population surveys.

CONCLUSIONS

Our preliminary efforts suggest that cross-national prevalence comparisons, policy analyses and, other projects such as estimating the global burden of disease could be improved by adjusting estimates from drug use surveys for differences in modality. Research is needed to create more authoritative adjustment factors.

Moving on From Representativeness: Testing the Utility of the Global Drug Survey

A decline in response rates in traditional household surveys, combined with increased internet coverage and decreased research budgets, has resulted in increased attractiveness of web survey research designs based on purposive and voluntary opt-in sampling strategies. In the study of hidden or stigmatised behaviours, such as cannabis use, web survey methods are increasingly common. However, opt-in web surveys are often heavily criticised due to their lack of sampling frame and unknown representativeness. In this article, we outline the current state of the debate about the relevance of pursuing representativeness, the state of probability sampling methods, and the utility of non-probability, web survey methods especially for accessing hidden or minority populations. Our article has two aims: (1) to present a comprehensive description of the methodology we use at Global Drug Survey (GDS), an annual cross-sectional web survey and (2) to compare the age and sex distributions of cannabis users who voluntarily completed (a) a household survey or (b) a large web-based purposive survey (GDS), across three countries: Australia, the United States, and Switzerland. We find that within each set of country comparisons, the demographic distributions among recent cannabis users are broadly similar, demonstrating that the age and sex distributions of those who volunteer to be surveyed are not vastly different between these non-probability and probability methods. We conclude that opt-in web surveys of hard-to-reach populations are an efficient way of gaining in-depth understanding of stigmatised behaviours and are appropriate, as long as they are not used to estimate drug use prevalence of the general population.

The Going Out In Sydney App: Evaluating the Utility of a Smartphone App for Monitoring Real-World Illicit Drug Use and Police Encounters Among Festival and Club Goers

Gaining accurate information on illicit drug use and policing in real-world settings is a challenge. This study examines the utility of a smartphone app ('Going Out In Sydney') to prospectively follow up illicit drug use and policing encounters at music festivals and licensed entertainment precincts in Sydney, Australia. In all, 38 regular festival and licensed entertainment venue attendees used the app to log nights out over a 3-month period, including (1) where they went (eg, festival, nightclub), (2) the prevalence of illicit drug use, and (3) the incidence and nature of police encounters. A survey and interview were then conducted about the utility of the app. The app enabled rich data collection (n = 353 entries) about illicit drug use and policing at both target settings. Follow-up surveys indicated that most participants were extremely satisfied with the ease of use of the app and privacy afforded, and compared with other data collection modes, such as paper-based logs and online surveys, rated the app the most desirable method of data collection. This suggests smartphone apps may be a viable option for future studies on illicit drug use and policing of drugs.

Differences in the symptom profile of methamphetamine-related psychosis and primary psychotic disorders

We examined the lifetime experience of hallucinations and delusions associated with transient methamphetamine-related psychosis (MAP), persistent MAP and primary psychosis among a cohort of dependent methamphetamine users. Participants were classified as having (a) no current psychotic symptoms, (n=110); (b) psychotic symptoms only when using methamphetamine (transient MAP, n=85); (c) psychotic symptoms both when using methamphetamine and when abstaining from methamphetamine (persistent MAP, n=37), or (d) meeting DSM-IV criteria for lifetime schizophrenia or mania (primary psychosis, n=52). Current psychotic symptoms were classified as a score of 4 or more on any of the Brief Psychiatric Rating Scale items of suspiciousness, hallucinations or unusual thought content in the past month. Lifetime psychotic diagnoses and symptoms were assessed using the Composite International Diagnostic Interview. Transient MAP was associated with persecutory delusions and tactile hallucinations (compared to the no symptom group). Persistent MAP was additionally associated with delusions of reference, thought interference and complex auditory, visual, olfactory and tactile hallucinations, while primary psychosis was also associated with delusions of thought projection, erotomania and passivity. The presence of non-persecutory delusions and hallucinations across various modalities is a marker for persistent MAP or primary psychosis in people who use methamphetamine.

Health service utilisation attributable to methamphetamine use in Australia: Patterns, predictors and national impact

AIM AND BACKGROUND

We estimated health service utilisation attributable to methamphetamine use, its national impact and examined other predictors of health service utilisation among dependent methamphetamine users.

METHOD

Past year rates of health service utilisation (number of attendances for general hospitals, psychiatric hospitals, emergency departments, general practitioners, psychiatrists, counsellors or psychologists, and dentists) were estimated for three levels of methamphetamine use (no use, < weekly, ≥ weekly) using panel data from a longitudinal cohort of 484 dependent methamphetamine users from Sydney and Brisbane, Australia. Marginal rates for methamphetamine use were multiplied by 2013 prevalence estimates from the National Drug Strategy Household Survey. Covariates included other substance use, demographics, mental disorders and drug treatment.

FINDINGS

Health service use was high. More frequent methamphetamine use was associated with more frequent presentations to emergency departments (incidence rate ratios 1.3-2.1) and psychiatric hospitals (incidence rate ratios 5.3-8.3) and fewer presentations to general practitioners, dentists and counsellors. We estimate methamphetamine use accounted for between 28 400 and 80 900 additional psychiatric hospital admissions and 29 700 and 151 800 additional emergency department presentations in 2013. More frequent presentations to these services were also associated with alcohol and opioid use, comorbid mental health disorders, unemployment, unstable housing, attending drug treatment, low income and lower education.

CONCLUSIONS

Frequent methamphetamine use has a significant impact on emergency medical and psychiatric services. Better provision of non-acute health care services to address the multiple health and social needs of dependent methamphetamine users may reduce the burden on these acute care services. [McKetin R, Degenhardt L, Shanahan M, Baker AL, Lee NK, Lubman DI. Health service utilisation attributable to methamphetamine use in Australia: patterns, predictors and national impact. Drug Alcohol Rev 2017;00:000-000].

Estimating the number of regular and dependent methamphetamine users in Australia, 2002-2014

OBJECTIVE

To estimate the number of regular and dependent methamphetamine users in Australia.

DESIGN

Indirect prevalence estimates were made for each year from 2002-03 to 2013-14. We applied multiplier methods to data on treatment episodes for amphetamines (eg, counselling, rehabilitation, detoxification) and amphetamine-related hospitalisations to estimate the numbers of regular (at least monthly) and dependent methamphetamine users for each year. Dependent users comprised a subgroup of those who used the drug regularly, so that estimates of the sizes of these two populations were not additive.

RESULTS

We estimated that during 2013-14 there were 268 000 regular methamphetamine users (95% CI, 187 000-385 000) and 160 000 dependent users (95% CI, 110 000-232 000) aged 15-54 years in Australia. This equated to population rates of 2.09% (95% CI, 1.45-3.00%) for regular and 1.24% (95% CI, 0.85-1.81%) for dependent use. The rate of dependent use had increased since 2009-10 (when the rate was estimated to be 0.74%), and was higher than the previous peak (1.22% in 2006-07). The highest rates were consistently among those aged 25-34 years, in whom the rate of dependent use during 2012-2013 was estimated to be 1.50% (95% CI, 1.05-2.22%). There had also been an increase in the rate of dependent use among those aged 15-24 years (in 2012-13 reaching 1.14%; 95% CI, 0.80-1.69%).

CONCLUSIONS

There have been increases over the past 12 years in the numbers of regular and dependent methamphetamine users in Australia. Our estimates suggest that the most recent numbers are the highest for this period, and that the increase has been most marked among young adults (those aged 15-34 years).

IMPLICATIONS

There is an increasing need for health services to engage with people who have developed problems related to their methamphetamine use.