Psychiatric Disorders and Gun Carrying among Adolescents in the United States

Drugs, guns, and violent crime in California

BACKGROUND

There is evidence linking use of controlled substances with perpetration of interpersonal violence. While the United States constitution protects the right to own a firearm, federal law prohibits firearm purchase and possession by persons believed to be at high risk for violence, including those who use controlled substances unlawfully.

METHODS

We report here the results of a 13-year prospective observational study on the risk of violent crime associated with a history of criminal drug charges in a cohort of 79,678 legal purchasers of handguns in California in 2001. The main outcomes were post-purchase charges for any violent crime, violent Crime Index crimes (murder, rape, robbery, aggravated assault), and firearm-related violent crimes. The main exposure of interest was a history of pre-purchase charge(s) for drug-related offenses; we examined as a secondary exposure a history of marijuana-related charges. We estimated adjusted hazard ratios (aHR) with 95 % confidence intervals (CI) using Cox proportional hazards multiple events models.

RESULTS

We found that legal handgun purchasers in California with a history of drug-related charges, even those with marijuana charges only, had triple the risk of a post-purchase violent crime charge compared to purchasers with no criminal charges (drug charges only: aHR=2.9, 95 % CI 2.2-3.8; marijuana charges only: aHR=3.3, 95 % CI 1.8-6.0). In addition, a criminal history of drug charges only vs. no criminal history was associated with increased risk of one or more violent crime charges after the first post-purchase arrest event (aHR=1.6, 95 % CI 1.2-2.3).

CONCLUSION

It is incumbent on researchers and policy makers to understand the nature and causes of this risk in order to take effective steps towards mitigation.

Associations between having been threatened or injured with a weapon and substance use and mental health among high school students in the United States

Being threatened or injured with a weapon is a serious form of physical bullying. Little is known about the effects of being threatened or injured with a weapon on substance use and mental health among adolescents. A secondary analysis of 2017 Youth Risk Behavior Survey data assessed the associations between having been threatened or injured with a weapon and substance use (binge drinking, marijuana, tobacco use, prescription medication misuse) and mental health (feeling sad or hopeless, considering suicide). Multiple logistic regression models with complex survey weights were used, controlling for potential confounders. Approximately 6.0% of students reported having been threatened/injured with a weapon. After adjusting for covariates, having been threatened/injured with a weapon was associated with binge drinking (AOR = 2.5; 95% CI: 1.9-3.4), marijuana (AOR = 2.1; 95% CI: 1.6-2.7), tobacco use (AOR = 2.6; 95% CI: 2.0-3.5), and misuse of prescription medication (AOR = 2.2; 95% CI: 1.6-3.0) compared with students who have not been threatened/injured. Having been threatened/injured with a weapon was associated with 1.6 times the odds (95% CI: 1.2-2.2) of feeling sad/hopeless and 1.7 times the odds (95% CI: 1.3-2.3) of considering suicide. Having been threatened or injured with a weapon is an important public health issue associated with negative mental health and substance use.

Mental Disorders, Gun Ownership, and Gun Carrying Among Soldiers After Leaving the Army, 2016-2019

Objectives. To examine associations of current mental and substance use disorders with self-reported gun ownership and carrying among recently separated US Army soldiers. Veterans have high rates of both gun ownership and mental disorders, the conjunction of which might contribute to the high suicide rate in this group. Methods. Cross-sectional survey data were collected in 2018-2019 from 5682 recently separated personnel who took part in the Army Study to Assess Risk and Resilience in Servicemembers. Validated measures assessed recent mood, anxiety, substance use, and externalizing disorders. Logistic regression models examined associations of sociodemographic characteristics, service characteristics, and mental disorders with gun ownership and carrying. Results. Of the participants, 50% reported gun ownership. About half of owners reported carrying some or most of the time. Mental disorders were not associated significantly with gun ownership. However, among gun owners, major depressive disorder, panic disorder, posttraumatic stress disorder, and intermittent explosive disorder were associated with significantly elevated odds of carrying at least some of the time. Conclusions. Mental disorders are not associated with gun ownership among recently separated Army personnel, but some mental disorders are associated with carrying among gun owners. (Am J Public Health. 2021;111(10):1855-1864. https://doi.org/10.2105/AJPH.2021.306420).

Implicaciones del porte legal de armas en salud pública: Una mirada desde el caso colombiano

La Organización Mundial de la Salud (OMS) define la violencia como el uso de la fuerza física de manera exagerada contra sí mismos o con miembros de una comunidad. Cada acto de violencia en sí, genera un aumento del riesgo de muerte, de esta manera, se estima que 9 de cada 10 muertes violentas no se encuentra asociada al conflicto armado.  

Firearm ownership among young adults: Associations with impulsivity and impulse control disorders

BACKGROUND

Firearm ownership is extremely common in parts of the United States. Yet little research has examined whether it is associated with impulsive symptoms and traits.

METHODS

Adults age 18 to 29 who gamble at least occasionally were recruited in 2 cities in the United States using media advertisements for an exploratory study examining general mental health, impulse control disorders, impulsive personality, and aspects of cognition (decision-making, response inhibition, and flexible responding). The participants were grouped as firearm owners and non-firearm owners; these 2 groups were compared on the above measures.

RESULTS

For this study, 149 young adults took part, of whom 33 (22.1%) endorsed owning ≥1 firearm. Firearm ownership was significantly associated with male gender and elevated risk of gambling disorder, but not with other measures of impulsivity.

CONCLUSIONS

The link between firearm ownership and disordered gambling merits further research and may have policy implications, such as in terms of screening for guns in gambling arenas, including casinos. Further research is needed to explore potential associations between gun ownership and impulsivity in cohorts with other demographic characteristics, including longitudinally.

A systematic review of the causes and prevention strategies in reducing gun violence in the United States

BACKGROUND

Approximately 100 lives are lost each day as a result of gun violence in the United States (US) with civilian mass shootings increasing annually. The gun violence rate in the US is almost 20 times higher than other comparable developed countries and has the most gun ownership per capita of any nation in the world. Understanding the causes and risk factors are paramount in understanding gun violence and reducing its incidence.

METHODS

A literature search of all published articles relating to gun violence and mass shootings in the US was conducted using the Medline and PMC databases. The Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) guidelines were used in conducting this study. Rayyan statistical software was utilized for analysis. Statistical significant was defined as p < .05.

RESULTS

Of the initial 2304 eligible manuscripts identified, 22 fulfilled our selection criteria. A variety of common causal and contributory factors were identified including but not limited to mental illness, suicidal ideation, intimate partner violence, socioeconomic status, community distress, family life, childhood trauma, current or previous substance abuse, and firearm access.

CONCLUSION

Gun violence is pervasive and multi-factorial. Interventions aimed at reducing gun violence should be targeted towards the most common risk factors cited in the literature such as access, violent behavioral tendencies due to past exposure or substance abuse, and mental illness including suicidal ideation.