Psychoactive substances and violent offences: A retrospective analysis of presentations to an urban emergency department in Switzerland

The company you keep: The neglected role of affiliating with delinquent friends in the development of the cannabis-violence link

A growing body of research suggests a potential role of cannabis use on aggressive behaviors. In literature on adolescents, the lack of consideration of important confounders, such as adolescent's affiliation with delinquent peers, limits the possibility to determine whether there might be a direct or indirect link between cannabis use and aggression. Therefore, we sought to examine the effect of delinquent peers on the association between cannabis use and violence. We re-analyzed data from 850 ninth graders who were followed from mid-adolescence to early adulthood. Generalized Estimations Equations (GEE) were conducted to examine whether affiliation with delinquent peers may mediate the relationship between cannabis use and violence. Cross-Lagged Panel Models were also conducted to estimate the directionality of these relationships over time. We additionally tested whether similar relationships may be identifiable when examining rule-breaking behaviors and/or alcohol use. GEE models revealed that both cannabis use and affiliation with delinquent peers were statistically associated with aggressive behaviors. Cannabis use, alcohol use and delinquent peers also predicted rule-breaking behaviors. More precisely, cross-lagged models showed that affiliation with delinquent peers played a partially mediating role in the cannabis-aggression link, and that similar cross-lagged estimates were observed when examining rule-breaking behaviors instead of aggression. Our results indicate that cannabis use may be associated with aggression as well as rule-breaking behaviors, suggesting a broader effect on conduct problems. More importantly, our study highlights the non-negligible role of affiliating with delinquent peers during adolescence.

Prevalence and correlates of internalizing and externalizing mental health problems among in-school adolescents in eastern Ethiopia: a cross-sectional study

Adolescent's mental health issues are a major social burden and a significant public health issue, but they have not received enough attention in Ethiopia. Therefore, this study aimed to determine the prevalence and correlates of internalizing and externalizing mental health problems among in-school adolescents in the Harari region, eastern Ethiopia. A cross-sectional study was conducted among 3227 in-school adolescents. Multistage sampling was used to select schools and eligible students to participate in the study. A guided, self-administered strength and difficulty questionnaire measured mental health problems. Data were double-entered, validated, and cleaned using EpiData 3.1 and analyzed using STATA version 17. Ordinal logistic regression analysis was performed to estimate the adjusted odds ratio between mental health problems and their correlates. Statistical significance was set at p-value < 0.05. The magnitudes of mental health problems among in-school adolescents by subscale was 24.17% (95% CI 22.72; 25.67) for internalizing and 11.93% (95% CI 10.85; 13.09) for externalizing problems. A high internalizing problem score was associated with females, rural residents, alcohol users, attending public schools, those bullied at school, and those in the lowest wealth index. Likewise, the likelihood of a high externalizing problem score was high among alcohol users, adolescents whose fathers are uneducated, rural, and bullied at school. The study suggests that mental health problems are prevalent among in-school adolescents in Ethiopia, especially internalizing problems. The study also identifies several risk factors associated with internalizing and externalizing problems, such as wealth index, school types, alcohol use, bullying, and rural residence. These factors may indicate the need for more mental health awareness and support programs for adolescents in Ethiopia. This highlights that schools and communities should prioritize mental health awareness and support programs for adolescents. These programs should be tailored to address the specific needs of the population, such as rural residents, those in the lowest wealth index, and those who have experienced bullying.

Combined use of cocaine and alcohol: A violent cocktail? A systematic review

It is generally believed that the use of alcohol and cocaine alone and especially in combination elicits aggression and violent behaviour. Though there is overwhelming proof that heavy alcohol use is associated with violence, this is not the case for cocaine. Still, in the popular press and by spokesmen of the police, cocaine use is seen as a cause of violent incidents. In the current systematic review, available data from human studies on the relation between cocaine and violent behaviour is presented. In particular, we present scientific data on the acute induction of violence by cocaine alone, as well as, that by the combination of cocaine and alcohol known to be frequently used simultaneously. RESULTS: show that there is only weak scientific evidence for the acute induction of violent behaviour by cocaine, either when used alone or in combination with alcohol. Based on these data we were also able to refute misconceptions about the relation between cocaine and violence published in the popular press and governmental reports, because it appeared that there was hardly any empirical support for this widely shared opinion. Probably, contextual factors, including cocaine use disorder and personality disorder, may better explain the assumed association between cocaine and violence.

Association between intoxication with psychoactive substances and adverse effects occurrence in consumers

Background

The prevalence of psychoactive substance use is increasing worldwide and identifying adverse effects of these types of drugs is necessary in intoxicated patients.

Objective

We aimed to investigate the association of psychoactive substance intoxication with their adverse effects on the functioning of the bodily organs.

Methods

This was a single-center study between March 2019 and April 2022 on intoxicated patients with psychoactive substances. Inclusion criteria were intoxication with alcohol, opioids, and stimulants, and having available results of laboratory biomarkers. Demographic and clinical data of patients at the time of admission as well as during hospitalization were reviewed, retrospectively. Data were analyzed using a generalized linear mixed model in R software and the Adjusted Odds Ratio (AOR) was estimated.

Results

A total of 800 hospitalized patients in the ICU (n = 400) and general ward (n = 400) were divided into two groups of intoxicated with alcohol (n = 200) and opioids or stimulants (n = 200). Liver (AOR = 0.15, p = 0.033; AOR = 0.13, p = 0.007) and kidney (AOR = 0.46, p = 0.004; AOR = 0.24, p = 0.021) dysfunction occurred less in the ICU and general ward, respectively, in opioids or stimulants intoxication compared to alcohol. Cardiovascular dysfunctions occurred more in opioids or stimulants intoxication compared to alcohol in both ICU (AOR = 10.32, p < 0.0001) and general ward (AOR = 4.74, p < 0.0001).

Conclusion

Kidney dysfunctions had a greater effect on mortality compared to other dysfunctions. During the follow-up, the incidence of dysfunctions increased in those intoxicated with opioids or stimulants. Men experienced more liver and kidney dysfunctions as well as mortality, but psychoactive substance experience was a protective factor in cardiovascular dysfunctions and mortality.

Mental health adverse events with cannabis use diagnosed in the Emergency Department: what are we finding now and are our findings accurate?

We have previously reviewed the types and numbers of cannabis-associated adverse events that have mental health presentations that are encountered in the Emergency Department. A particular challenge in examining these events is disentangling cannabis use adverse events from adverse events associated with use of multiple recreational substances. Since that review was published, cannabis legalization for recreational use has greatly expanded world-wide and with these changes in the legal climate has come clearer information around the frequency of adverse events seen in the Emergency Department. However, as we examined the current state of the literature, we also examined some of research designs and the biases that may be impacting the validity of the data in this field. The biases both of clinicians and researchers as well as research approaches to studying these events may be impacting our ability to assess the interaction between cannabis and mental health. For example, many of the studies performed examining cannabis-related admissions to the Emergency Department were administrative studies that relied on front line clinicians to identify and attribute that cannabis use was associated with any particular admission. This narrative review provides an overview on what we currently know about mental health adverse events in the Emergency Department with a focus on the mental health impacts both for those with and without a history of mental illness. The evidence that cannabis use can adversely impact genders and sexes differently is also discussed. This review outlines what the most common adverse events related to mental health with cannabis use are; as well as noting the most concerning but much rarer events that have been reported. Additionally, this review suggests a framework for critical evaluation of this field of study going forward.

Lifetime Cannabis Use Disorder Is Not Associated With Lifetime Impulsive Behavior and Severe Violence in Patients With Schizophrenia Spectrum Disorders From a High-Security Hospital

PURPOSE/BACKGROUND

The link between substances of abuse, impulsivity, and violence in psychotic patients remains unclear. This study aims at unraveling whether cannabis use disorder is associated with violent and/or psychotic behavior in patients who are hospitalized in a high-security hospital.

METHODS/PROCEDURES

We conducted a cross-sectional retrospective study in 124 patients with schizophrenia spectrum disorders admitted to a high-security hospital. Lifetime violent behavior was assessed using the History of Aggressive Behavior Form-Subject of the MacArthur Violence Risk Assessment Study and impulsivity using the Psychopathy Checklist-Revised (considering items: "proneness to boredom," "lack of self-control," and "impulsive thoughtless gestures"). Substance use disorder was diagnosed according to Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition criteria. Positive and Negative Syndrome Scale was also administered.

FINDINGS/RESULTS

Violent and nonviolent psychotic patients showed similar prevalence of cannabis use disorder. Alcohol and cocaine use disorders were more prevalent among violent psychotic patients. Cannabis use disorder was not associated with any dimension of impulsivity, whereas alcohol use disorder was positively correlated to impulsive thoughtless gestures (standardized β = 0.213, P = 0.027) and cocaine use disorder with proneness to boredom (standardized β = 0.290, P = 0.002). Finally, logistic regression analysis revealed that, unlike cannabis and cocaine use disorders, alcohol use disorder (odds ratio, 3.964; 95% confidence interval, 1.729-9.087; P = 0.001) was a factor associated with violence.

IMPLICATIONS/CONCLUSIONS

These findings show that cannabis and alcohol are largely abused and coabused by psychotic patients with a propsensity for violence, but only alcohol is associated with impulsive and violent behavior. Therefore, especially alcohol abuse should be seriously considered by practitioners when evaluating the dangerousness of patients with schizophrenia spectrum disorders.

Ecstasy and related drug consumption and the effect on emergency department resource use

BACKGROUND

Ecstasy and other recreational related drug use and substance related presentations to the emergency department are increasing. The aim of this study was to identify, quantify, and describe the emergency department resources used to care for patients diagnosed with ecstasy and related drug use.

METHOD

A retrospective case study design.

RESULTS

Eighty-nine patients (89%) needed one to one (n=25) and/or one to two nursing care (n=83). Security presence was required for 37 patients (37%) and the Emergency Psychiatric Service team reviewed 29 patients (29%). Most patients (n=80, 80%) received an Emergency Short Stay Unit admission, but continued to receive care in the emergency department, and were not transferred to the short stay unit (n=74, 92.5%). Most patients (n=86, 86%) were discharged home, after 5hr 49mins (median) in the emergency department.

CONCLUSION

Extensive human resources were required to care for patients diagnosed with ecstasy and related drug use. Nursing staffing levels required to care for this patient cohort during times of peak presentations should be reviewed. It is important the government acknowledges the National Emergency Access Target is not suitable for all presenting patients. A dedicated model of care is recommended to support care requirements and reduce pressure on busy emergency departments.

Association Between the Use of Cannabis and Physical Violence in Youths: A Meta-Analytical Investigation

OBJECTIVE

The aim of this meta-analysis was to investigate the extent to which cannabis use among youths is associated with the risk of perpetrating physical violence.

METHODS

Searches were conducted in PubMed, PsycINFO, Web of Science, and Google Scholar for articles published from the inception of each database to July 2019. All studies that examined both cannabis use and the perpetration of physical violence in a sample of youths and young adults <30 years old were included. The meta-analysis was performed with a random-effects model. Risk of publication bias was assessed with Egger's test. Guidelines from the Meta-Analysis of Observational Studies in Epidemiology were followed.

RESULTS

After screening 11,348 potential studies, 30 study arms were included, yielding a total of 296,815 adolescents and young adults. The odds ratio for the pooled studies was 2.11 (95% CI=1.64, 2.72). The pooled odds ratios were 2.15 (95% CI=1.58, 2.94) and 2.02 (95% CI=1.26, 3.23) for the cross-sectional and longitudinal studies, respectively. Preliminary evidence suggests that the risk of violence was higher for persistent heavy users (odds ratio=2.81, 95% CI=1.68, 4.74) compared with past-year users (odds ratio=2.05, 95% CI=1.5, 2.8) and lifetime users (odds ratio=1.94, 95% CI=1.29, 2.93). The odds ratio for unadjusted studies was 2.62 (95% CI=1.89, 3.62), and for studies using odds ratios adjusted for potential confounding factors, 2.01 (95% CI=1.57, 2.56).

CONCLUSIONS

These results demonstrate a moderate association between cannabis use and physical violence, which remained significant regardless of study design and adjustment for confounding factors (i.e., socioeconomic factors, other substance use). Cannabis use in this population is a risk factor for violence.