Alcohol and drug offenses and suicide risk among men who purchased a handgun in California: A cohort study.

Firearm access is a risk factor for firearm suicide; substance use may confer additional risk. In this retrospective cohort study, we estimated the associations between prior alcohol and drug charges at the time of handgun purchase and subsequent suicide among men in California. The sample comprised all men who legally purchased a handgun in California in 2001 and who were age ≥ 21 at the time of acquisition (N = 101,377), identified in the California Department of Justice (CA DOJ) Dealer's Record of Sale database. Exposures included alcohol and drug criminal charges and convictions accrued January 1, 1990 until the first ('index') handgun acquisition in 2001, recorded in the CA DOJ Criminal History Information System. Outcomes included suicide and firearm suicide occurring after the index purchase and before January 1, 2016. A total of 1907 purchasers had alcohol charges, 1248 had drug charges, and 304 had both; 594 purchasers died by suicide (516 by firearm suicide). Compared with those with neither alcohol nor drug charges, those with alcohol charges had 2.20 times the hazard of suicide (95% confidence interval [CI], 1.39-3.46) and 2.22 times the hazard of firearm suicide (95% CI, 1.36-3.62). Risk was most elevated among those with more recent charges and those with 2 or more charges, and in the time period closest to the purchase. The associations for drug charges and the combination of alcohol and drug charges were not distinguishable from the null. Firearm owners with alcohol offenses may benefit from intervention to reduce firearm access and alcohol use.

Association of Prior Convictions for Driving Under the Influence With Risk of Subsequent Arrest for Violent Crimes Among Handgun Purchasers.

Importance: Alcohol use is a risk factor for firearm-related violence, and firearm owners are more likely than others to report risky drinking behaviors. Objective: To study the association between prior convictions for driving under the influence (DUI) and risk of subsequent arrest for violent crimes among handgun purchasers. Design: In this retrospective, longitudinal cohort study, 79 678 individuals were followed up from their first handgun purchase in 2001 through 2013. The study cohort included all legally authorized handgun purchasers in California aged 21 to 49 years at the time of purchase in 2001. Individuals were identified using the California Department of Justice (CA DOJ) Dealer's Record of Sale (DROS) database, which retains information on all legal handgun transfers in the state. Exposures: The primary exposure was DUI conviction prior to the first handgun purchase in 2001, as recorded in the CA DOJ Criminal History Information System. Main Outcomes and Measures: Prespecified outcomes included arrests for violent crimes listed in the Crime Index published by the Federal Bureau of Investigation (murder, rape, robbery, and aggravated assault), firearm-related violent crimes, and any violent crimes. Results: Of the study population (N=79 678), 91.0% were males and 68.9% were white individuals; the median age was 34 (range, 21-49) years. The analytic sample for multivariable models included 78 878 purchasers after exclusions. Compared with purchasers who had no prior criminal history, those with prior DUI convictions and no other criminal history were at increased risk of arrest for a Crime Index-listed violent crime (adjusted hazard ratio [AHR], 2.6; 95% CI, 1.7-4.1), a firearm-related violent crime (AHR, 2.8; 95% CI, 1.3-6.4), and any violent crime (AHR, 3.3; 95% CI, 2.4-4.5). Among purchasers with a history of arrests or convictions for crimes other than DUI, associations specifically with DUI conviction remained. Conclusions and Relevance: This study's findings suggest that prior DUI convictions may be associated with the risk of subsequent violence, including firearm-related violence, among legal purchasers of handguns. Although the magnitude was diminished, the risk associated with DUI conviction remained elevated even among those with a history of arrests or convictions for crimes of other types.

Extreme Risk Protection Orders Intended to Prevent Mass Shootings: A Case Series.

Urgent, individualized interventions to reduce firearm access, such as extreme risk protection orders (ERPOs, colloquially known as "red flag" orders), provide a rapid, focused response when risk for imminent firearm violence is high. Studies to date suggest such interventions are most commonly used to prevent suicide and are effective. Authorizing legislation has often been enacted after public mass shootings but, to our knowledge, there have been only 2 reported cases of ERPO use in efforts to prevent mass shootings. California enacted the nation's first ERPO statute, which took effect in January 2016. The authors are evaluating that statute's implementation and effectiveness and are seeking to obtain court records for all 414 cases occurring in 2016 to 2018. Based on 159 records received thus far, this article presents an aggregate summary and individual histories for a preliminary series of 21 cases in which ERPOs were used in efforts to prevent mass shootings. Most subjects were male and non-Hispanic white; the mean age was 35 years. Most subjects made explicit threats and owned firearms. Four cases arose primarily in relation to medical or mental health conditions, and such conditions were noted in 4 others. Fifty-two firearms were recovered. As of early August 2019, none of the threatened shootings had occurred, and no other homicides or suicides by persons subject to the orders were identified. It is impossible to know whether violence would have occurred had ERPOs not been issued, and the authors make no claim of a causal relationship. Nonetheless, the cases suggest that this urgent, individualized intervention can play a role in efforts to prevent mass shootings, in health care settings and elsewhere. Further evaluation would be helpful.