Firearm screening in pediatric patients.

Introduction: In the United States, firearm-related injuries are the leading cause of death among children and adolescents 1-19 years of age. Although many pediatricians believe addressing firearm safety is important and have guidance from organizations like the American Academy of Pediatrics, few routinely screen and counsel on firearm safety. The goal of this project was to screen all patients presenting to the pediatric emergency department, pediatric floor, and pediatric intensive care unit for the presence of firearms in the home, firearm storage practices, and whether they had previously received any firearm counseling by medical professionals. Methods: A 13-item survey was administered to each participant. Items included demographic information, willingness to answer questions about firearms, practice of asking questions about firearms, previous counseling from medical professionals about the presence of firearms in the home and the presence of firearm in their personal home as well as storage practices. Results: A total of 200 parents responded to the survey. Of those that responded to the survey, 171 (85.5%) did not have a firearm in the home and 28 (14%) did have a firearm in the home. 75% (n = 21) had never had a medical provider discuss firearm safety with them. 100% had never been asked by another parent about the presence of a firearm in their home when a child came over for a playdate. 39% (n = 11) of parents with a firearm in the home had asked other parents whether they have a firearm in the home where their child goes to play. Discussion: Findings from our study highlight a significant lack of screening of our pediatric patients both in the inpatient and outpatient settings, with the majority reporting that they had never been asked by a medical provider about firearm safety. In addition, three quarters of parents with a firearm in the home reported that they did not mind answering questions about firearms yet none had been asked by other parents about firearms. Thus, although firearm possession and safety is considered to be a sensitive topic, many parents are willing to discuss it with their health care providers and other parents.

Machine learning classification of new firearm injury encounters in the St Louis region: 2010-2020.

OBJECTIVES: To improve firearm injury encounter classification (new vs follow-up) using machine learning (ML) and compare our ML model to other common approaches. MATERIALS AND METHODS: This retrospective study used data from the St Louis region-wide hospital-based violence intervention program data repository (2010-2020). We randomly selected 500 patients with a firearm injury diagnosis for inclusion, with 808 total firearm injury encounters split (70/30) for training and testing. We trained a least absolute shrinkage and selection operator (LASSO) regression model with the following predictors: admission type, time between firearm injury visits, number of prior firearm injury emergency department (ED) visits, encounter type (ED or other), and diagnostic codes. Our gold standard for new firearm injury encounter classification was manual chart review. We then used our test data to compare the performance of our ML model to other commonly used approaches (proxy measures of ED visits and time between firearm injury encounters, and diagnostic code encounter type designation [initial vs subsequent or sequela]). Performance metrics included area under the curve (AUC), sensitivity, and specificity with 95% confidence intervals (CIs). RESULTS: The ML model had excellent discrimination (0.92, 0.88-0.96) with high sensitivity (0.95, 0.90-0.98) and specificity (0.89, 0.81-0.95). AUC was significantly higher than time-based outcomes, sensitivity was slightly (but not significantly) lower than other approaches, and specificity was higher than all other methods. DISCUSSION: ML successfully delineated new firearm injury encounters, outperforming other approaches in ruling out encounters for follow-up. CONCLUSION: ML can be used to identify new firearm injury encounters and may be particularly useful in studies assessing re-injuries.

Patient and Hospital Characteristics Associated with Admission Among Patients With Minor Isolated Extremity Firearm Injuries: A Propensity-Matched Analysis.

Objective: To quantify the association between insurance and hospital admission following minor isolated extremity firearm injury. Background: The association between insurance and injury admission has not been examined. Methods: This was an observational retrospective cohort study of minor isolated extremity firearm injury captured in the Healthcare Cost and Utilization Project State Inpatient and Emergency Department Databases in 6 states (New York, Arkansas, Wisconsin, Massachusetts, Florida, and Maryland) from 2016 to 2017 among patients aged 16 years or older. The primary exposure was insurance. Admitted patients were propensity score matched to nonadmitted patients on age, extremity Abbreviated Injury Score, and Elixhauser Comorbidity Index with exact matching within hospital to adjust for selection bias. A general estimating equation logistic regression estimated the association between insurance and odds of admission in the matched cohort while controlling for sex, race, injury intent, injury type, hospital profit type, and trauma center designation with observations clustered by propensity score-matched pairs within hospital. Results: A total of 8151 patients presented to hospital with a minor isolated extremity firearm injury between 2016 and 2017 in 6 states. Patients were 88.0% male, 56.6% Black, and 71.7% aged 16 to 36 years old, and 22.1% were admitted. A total of 2090 patients were matched on propensity for admission. Privately insured matched patients had 1.70 higher adjusted odds of admission and 95% confidence interval of 1.30 to 2.22, compared with uninsured after adjusting for patient and hospital characteristics. Conclusions: Insurance was associated with hospital admission for minor isolated extremity firearm injury.

Examining the role of social vulnerability, neighborhood characteristics, and geospatial patterns of firearm-related injuries and clinical outcomes in Milwaukee county.

BACKGROUND: Previous work has shown socioenvironmental factors can influence firearm injury. Milwaukee County, Wisconsin is a diverse midwestern county with historic disinvestment in marginalized communities yielding stark segregation along racial and ethnic lines. It is also one of the many U.S. counties burdened by surging firearm injuries. The differences among communities within Milwaukee County provides a unique opportunity to explore the intersection of socioenvironmental factors that may affect clinical outcomes and geospatial patterns of firearm injury. METHODS: The trauma registry from the regional adult level 1 trauma center was queried for patients who sustained a firearm-related injury from 2015 to 2022 (N = 2402). The Social Vulnerability Index (SVI) ranking was derived using patient residence addresses to evaluate its association with traumatic injury clinical outcomes (i.e., in-hospital mortality, length of hospital stay, ICU or ventilator treatment, or injury severity score) and risk screening results for alcohol use disorder (AUD), posttraumatic stress disorder (PTSD), and depression. We evaluated hotspots of firearm injury density over time for patient residences and injury locations and distances between locations. A spatially lagged regression model tested the association between firearm injury density and SVI domains, alcohol outlet types, and park coverage. RESULTS: Most firearm injury patients were younger, male, racial or ethnic minorities from disadvantaged neighborhoods (SVI total; M = 0.86, SD = 0.15). SVI was not associated with any clinical outcomes. Of those screened, 12.9% screened positive for AUD and 44.5% screened at risk for PTSD, depression, or both. Hotspot analysis indicated consistent concentrations of firearm injury density. There were no differences in clinical outcomes between those injured inside or outside the home. Census tracts with lower socioeconomic status, greater off-premises and lower on-premises alcohol outlet density were associated with greater firearm injury density. CONCLUSIONS: In Milwaukee County, firearm injury patients are injured in and often return to the same disadvantaged neighborhoods that may hamper recovery. Results replicate and expand previous work and implicate specific socioenvironmental factors for intervention and prevention of firearm injury.

Firearm Injury, It's Not Just Physical: The Adverse Impact on Patient-Reported Socioeconomic, Mental Health, and Quality-of-Life Outcomes.

Background: The burden of firearm injury (FI) extends beyond hospitalization; however, literature focuses mostly on short-term physical outcomes. This study aimed to assess changes in patient-reported outcomes following firearm-related trauma. We hypothesized long-term patient-reported socioeconomic, mental health, and quality-of-life (QoL) outcomes are worse post-FI compared to pre-FI.Methods: This was a retrospective study where a phone survey was conducted with FI survivors admitted between January 2017 and August 2022 at a level 1 trauma center. Survey questions assessed demographics, socioeconomics, and mental and physical health pre-FI vs ≥ 6 months post-FI; the McNemar test was used for comparisons. The PROMIS-29 + 2v2.1 NIH validated instrument was used to assess long-term QoL. Standardized NIH PROMIS T-scores were calculated using the HealthMeasures Scoring Service.Results: Of 204 eligible FI survivors, 71 were successfully contacted and 38 surveyed. Respondents were male (86.8%), Black (76%), and aged 18-29 (55.3%), and 68.4% had high school level education. Post-FI, patients were more likely to be unemployed (55.2% vs 13.2%, P < .001) and report increased mental health needs (84.2% vs 21%, P < .001) compared to pre-FI. Most (73.7%) also reported lasting physical disability. Similarly, the PROMIS instrument demonstrated largely worse health-related QoL scores post-FI, particularly high anxiety/fear (T-score 60.2, SE 3.1, CI 54.6-66.3, Table 2), pain resulting in life interference (T-score 60.0, SE 2.3, CI 55.7-63.9), and worse physical function (T-score 42.5, SE 3.0, CI 38.2-46.9).Conclusions: Firearm injury survivors had more unemployment and worse mental health post-FI compared to pre-FI. Firearm injury survivors also reported significantly worse health-related QoL metrics including pain, anxiety, and physical function 6 months following their trauma. These long-term patient-reported outcomes are a framework to build future outpatient resources.Level of Evidence: IV.

Community-Academic Partnership to Assess the Role of Physical Disinvestment on Firearm Violence in Toledo, OH.

Reversing physical disinvestment, e.g., by remediating abandoned buildings and vacant lots, is an evidence-based strategy to reduce urban firearm violence. However, adoption of this strategy has been inconsistent across US cities. Our community-academic partnership sought to support adoption in Toledo, OH, USA, by generating locally relevant analyses on physical disinvestment and firearm violence. We used a spatial case-control design with matching. Physical disinvestment measures were derived from a citywide parcel foot audit conducted by the Lucas County Land Bank in summer 2021. Firearm violence outcomes were incident-level shootings data from the Toledo Police Department from October 2021 through February 2023. Shooting locations were matched to controls 1:4 on poverty rate, roadway characteristics, and zoning type. Exposures were calculated by aggregating parcels within 5-min walking buffers of each case and control point. We tested multiple disinvestment measures, including a composite index. Models were logistic regressions that adjusted for the matching variables and for potential spatial autocorrelation. Our sample included N = 281 shooting locations and N = 1124 matched controls. A 1-unit increase in the disinvestment score, equal to approximately 1 additional disrepair condition for the average parcel within the walking buffer, was associated with 1.68 times (95% CI: 1.36, 2.07) higher odds of shooting incidence. Across all other measures, greater disinvestment was associated with higher odds of shooting incidence. Our finding of a strong association between physical disinvestment and firearm violence in Toledo can inform local action. Community-academic partnership could help increase adoption of violence prevention strategies focused on reversing physical disinvestment.

Reconstruction of the Talus and Calcaneus Using a Three-Dimensional (3D)-Printed Custom Implant Following a Shotgun Wound: A Case Report.

We present a case detailing the successful reconstruction of the hindfoot in a 15-year-old male patient who suffered a self-inflicted shotgun wound. The patient had multiple complex fractures in these bones, resulting in considerable bone loss and the destruction of the articular surface. Considering the extent of the injuries and the failure of prior intervention from an outside surgeon, traditional reconstruction methods would not have adequately addressed the severity of the damage. Consequently, the treating physician opted to address the deformity using a three-dimensional (3D)-printed custom implant to salvage the limb. The treatment involved a two-stage surgical plan. The first stage encompassed debridement with the removal of antibiotic cement, which had been placed at the time of the initial injury, followed by debridement and placement of a new temporary antibiotic spacer. A 21-day course of antibiotics was administered to combat the developing osteomyelitis. Following the successful eradication of the infection, a second surgery entailed removing the spacer and residual bone, inserting the 3D-printed implant filled with bone graft, and fusing the hindfoot. Post-surgery, the patient steadily progressed from non-weight-bearing to full weight-bearing and was fully weight-bearing at five months post-surgery. He had reported significant improvements in pain and mobility. There were no complications, and the 3D-printed implant exhibited excellent integration with the surrounding bone tissue with a two-year follow-up. This case serves as a demonstration of the utility of 3D-printed custom implants in severe foot and ankle trauma, showcasing the technology's potential to revolutionize orthopedic surgery. Despite the potential risks, this approach highlights significant benefits and opens avenues for tailored reconstructions in complex orthopedic injuries.

Five Years of Extreme Risk Protection Orders in Oregon: A Descriptive Analysis.

Extreme Risk Protection Order (ERPO) laws have received increasing attention as a tool to prevent firearm suicide and homicide, including mass shootings. However, important gaps remain in our understanding of ERPO usage and implementation. Using the Oregon Judicial Case Information Network database, we abstracted data from all ERPO petitions filed in Oregon from 2018 to 2022, the first five years after the law took effect (N = 649). ERPO petitions were filed in 29 of 36 counties (81%, range 0-105 per county, median 11), against respondents 17-96 years of age (median: 42). Of ERPOs filed, 78% were initially granted. While only 22% of respondents in initially-granted ERPOs requested a hearing, when a hearing was held, nearly half (44%) of ERPOs were dismissed. The majority of ERPO petitions were motivated by threats of harm to respondents and others (n = 327, 50%), followed by threats of harm to others-only (n = 220, 34%) or respondents-only (n = 81, 12%). During the 5-year period, 72 (11%) ERPO petitions cited threats of mass violence as a motivating factor, including 24 (4%) petitions citing threats to schools or college campuses. The majority of ERPOs were filed by law enforcement officers (60%), and these petitions were significantly more often granted than those filed by family/household members (96% vs. 67%, p < .0001). We also found evidence of important gaps in documentation, including of respondent race (unavailable for 191 respondents, 29%) and of weapon removal or disposition after the ERPO was granted (unavailable in 350 cases, 69%). This study of long-term patterns of ERPO petitions highlights trends in usage and suggests areas where improvement may be possible, with implications for other states that have adopted or are considering similar ERPO laws.

A social problem analysis of the 1993 Brady Act and the 2022 Bipartisan Safer Communities Act.

In June 2022, the U.S. federal government passed its first major firearm policy since the Brady Handgun Violence Prevention Act of 1993, the Bipartisan Safer Communities Act (BSCA). Summative content analysis was used to explore how the social problem of firearm violence was outlined in both policies, with the goal of extracting the social issue's definition from the policies' approaches to solving it. Both policies do not outline the various types of firearm violence, nor the disproportionate effect of firearm violence on certain populations. This work informs the role of federal policy in defining and monitoring firearm violence as a public health issue, identifying both individual and structural risk and protective factors from an asset-based lens, and allocating preventative efforts in communities that are most affected.

Scenario of Firearm Injuries in Saudi Arabia: A Comparative Review.

The global concern regarding the involvement of firearms in acts of violence, criminal activities, and terrorism has escalated, emerging as a leading cause of mortality and morbidity worldwide. The Kingdom of Saudi Arabia (KSA), with its rich cultural history, presents a unique backdrop characterized by diversity and distinctiveness. Recognizing the significance of addressing this issue within diverse demographics, we have undertaken a study to establish a database of firearm injury cases. This review is rooted in analyzing all published articles on firearm injuries in the KSA over the past three decades. The literature encompasses a substantial number of studies with diverse objectives, covering a range of parameters, including the types of cases (homicide, suicide, and accidental), the weaponry involved, the location of gunshot wounds, victim demographics (such as age), the timing of gunshot-related fatalities, and more. Studies consistently indicate that the lower extremities are the most frequently affected body regions, followed by the upper extremities and chest. This information will be a scientific, evidence-based resource to educate the public about firearm-related risks. In addition, it will aid in planning appropriate interventions and formulating stricter laws to regulate the issuance of firearm licenses and impose severe penalties for carrying firearms in public spaces. The ultimate goal is to prevent the loss of life and mitigate the lifelong disabilities resulting from firearm-related incidents.

Analysis of Factors Influencing Financial Cost and Morbidity in Nonfatal Firearm Injuries.

Representing 68% of firearm-related injuries, nonfatal firearm injuries cause substantial morbidity and are associated with high costs to patients and the health care system. A retrospective analysis was performed to evaluate 359 adults in the Southeastern United States from 2019 to 2021. IBM SPSS was used for descriptive and parametric statistical analysis. The mean total cost of stay (TCOS) was $36,639.12, length of stay (LOS) was 8.61 days, number of times to the operating room was 1.88, and number of follow-ups was 3.21. Vascular and traumatic brain injuries were associated with higher TCOS and LOS. Vascular injuries were associated with more operating room visits. Bony injuries and non-TBI neurological injuries were associated with more follow-up appointments. In this brief report, we aim to understand the effect injury types have on these factors to help inform trauma protocol development with the goal of decreasing financial burdens.

Child opportunity index is associated with pediatric firearm injury in Philadelphia, Pennsylvania.

Introduction: Firearm injury is the leading cause of death in children. This study uses geospatial mapping to illustrate the burden of pediatric firearm injury in Philadelphia and assesses the relationship between Child Opportunity Index (COI) and injury, hypothesizing that lower COI zip codes would have higher injury and mortality rates. Methods: Pediatric firearm injury data for children aged 0-19 years in Philadelphia, from 2015 to February 2023, was visualized by race/ethnicity, fatal versus non-fatal status, and COI for zip code. COI was then dichotomized as "High" or "Low" based on nationally normed scores and used to compare incidence and odds of mortality. Injury incidence rates by COI were calculated using weighted Poisson regression, to adjust for the total number of children in each COI category. Odds of mortality by COI, adjusted for age, sex and race/ethnicity, were calculated using multivariable logistic regression. Results: Of 2,339 total pediatric firearm injuries, 366 (16%) were fatal. Males (89%), adolescents (95%) and Black children (88%) were predominately affected. Geospatial mapping showed highest burden in North and West Philadelphia, which corresponded with areas of low COI. The incidence rate ratio (IRR) of injury in low COI zip codes was 2.5 times greater than high COI (IRR 2.5 [1.93-3.22]; p < 0.01). After adjusting for age, sex, and race/ethnicity, odds of mortality in low COI zip codes was nearly twice that of high COI zip codes (aOR 1.95 [0.77-4.92]), though did not demonstrate statistical significance (p = 0.16). Conclusion: Child opportunity index is associated with pediatric firearm injury in Philadelphia, Pennsylvania.

Early Results of an Initiative to Assess Exposure to Firearm Violence in Ambulatory Care: Descriptive Analysis of Electronic Health Record Data.

BACKGROUND:  Current research on firearm violence is largely limited to patients who received care in emergency departments or inpatient acute care settings or who died. This is because standardized disease classification codes for firearm injury only represent bodily trauma. As a result, research on pathways and health impacts of firearm violence is largely limited to people who experienced acute bodily trauma and does not include the estimated millions of individuals who were exposed to firearm violence but did not sustain acute injury. Assessing and collecting data on exposure to firearm violence in ambulatory care settings can expand research and more fully frame the public health issue. OBJECTIVE: The aim of the study is to evaluate the demographic and clinical characteristics of patients who self-reported exposure to firearm violence during a behavioral health visit. METHODS: This study assessed early data from an initiative implemented in 2022 across a national network of ambulatory behavioral health centers to support trauma-informed care by integrating structured data fields on trauma exposure into an electronic health record behavioral health patient assessment form (SmartForm), as such variables are generally not included in standard outpatient medical records. We calculated descriptive statistics on clinic characteristics, patient demographics, and select clinical conditions among clinics that chose to implement the SmartForm and among patients who reported an exposure to firearm violence. Data on patient counts are limited to positive reports of exposure to firearm violence, and the representativeness of firearm exposure among all patients could not be calculated due to unknown variability in the implementation of the SmartForm. RESULTS: There were 323 of 629 (51%) clinics that implemented the SmartForm and reported at least 1 patient exposed to firearm violence. In the first 11 months of implementation, 3165 patients reported a recent or past exposure to firearm violence across the 323 clinics. Among patients reporting exposure, 52.7% (n=1669) were male, 38.8% (n=1229) were Black, 45.7% (n=1445) had posttraumatic stress disorder, 37.5% (n=1186) had a substance abuse disorder (other than nicotine), and 11.7% (n=371) had hypertension. CONCLUSIONS: Current research on firearm violence using standardized data is limited to acute care settings and death data. Early results from an initiative across a large network of behavioral health clinics demonstrate that a high number of clinics chose to implement the SmartForm, resulting in thousands of patients reporting exposure to firearm violence. This study demonstrates that collecting standardized data on firearm violence exposure in ambulatory care settings is feasible. This study further demonstrates that resultant data from ambulatory settings can be used for meaningful analysis in describing populations affected by firearm violence. The results of this study hold promise for further collection of structured data on exposure to firearm violence in ambulatory settings.

Urban Teen Perspectives on Gun Violence: a Mixed Methods Study.

We aimed to explore perspectives of teenagers on their exposure to gun violence (GV), their knowledge and attitudes towards firearm injury prevention (FIP) efforts, and how to counsel them about FIP. Teens from two single-sex Bronx Catholic high schools participated in videoconferencing focus groups. Participants completed an online survey collecting demographic information and Likert-scale scoring of attitudes towards GV. Quantitative data was analyzed with descriptive statistics. Focus group discussions were recorded and transcribed. Using Dedoose, two investigators independently coded data and achieved consensus using content analysis. Six focus groups (3 from each school, n = 28 participants) were held from October-November 2020. A total of 27 participants completed the survey. Eighty-one percent of respondents agreed "Doctors should talk to teens about gun safety." During focus groups, participants reported personal, community, and entertainment media exposure to GV. GV elicited many emotions, including fear and frustration. Teens identified factors contributing to GV that should be addressed, including poverty, racism, and mental illness. Most had not received prior FIP education and desired more information from trusted adults. They preferred discussions over written materials and information given over time. Teens were open to doctors counseling on FIP during healthcare visits and suggested including screening questions on surveys, conversations during healthcare maintenance visits, and classroom talks by physicians. Bronx teens are exposed to and distressed by community GV. They desired more FIP education, including physician counseling during healthcare visits. Next steps are to create and test FIP guidance for adolescents.

Brachial Gunshot Wounds: Injury Patterns and Considerations for Managing the Abnormal Neurological Examination.

BACKGROUND: Nerve injuries from gunshot wounds (GSWs) to the upper arm can cause significant morbidity and loss of function. However, indications for surgical exploration and nerve reconstruction remain unclear as both low- and high-grade injuries can present with an abnormal neurological examination. METHODS: Adult patients presenting with a history of isolated GSW to the upper arm between 2010 and 2019 at a single urban level 1 trauma center were screened for inclusion in this retrospective study. Patient demographics, neurological examination findings, concurrent injuries, and intraoperative findings were gathered. Bivariate analysis was performed to characterize factors associated with nerve injuries. RESULTS: There were 139 adult patients with isolated brachial GSWs, and 49 patients (35%) presented with an abnormal neurological examination and significantly associated with concurrent humerus fractures (39% vs 21%, P = .026) and brachial artery injuries (31% vs 2%, P < .001). Thirty of these 49 patients were operatively explored. Fifteen patients were found to have observed nerve injuries during operative exploration including 8 patients with nerve transections. The radial nerve was the most commonly transected nerve (6), and among the 16 contused nerves, the median (8) was most common. CONCLUSION: Nerve injury from upper arm GSWs is common with directly traumatized nerves confirmed in at least 39% and nerve transection in at least 16% of patients with an abnormal neurological examination. Timely referral to a hand and/or peripheral nerve surgeon for close clinical follow-up, appropriate diagnosis, and any necessary surgical reconstruction with nerve grafts, tendon transfers, and nerve transfers is recommended.

The Medical Costs of Firearm Injuries in the United States: A Systematic Review.

BACKGROUND: Firearm injury poses a significant public health burden in the United States. OBJECTIVES: The purpose of this systematic review was to provide a comprehensive accounting of the medical costs of firearm injuries in the United States. METHODS: A systematic literature review was conducted to identify studies published between January 1, 2000 and July 13, 2022 that reported medical costs of firearm injuries. A search of Embase, PubMed, and the Cochrane Library databases was performed by a medical librarian. The National Institutes of Health Quality Assessment Tool for Observational Cohort and Cross-Sectional Studies was used to evaluate for risk of bias. Health care-related charges and costs per firearm injury were presented and trends were identified. RESULTS: Sixty-four studies were included in the analysis. Study sample sizes ranged from 18 to 868,483 patients. Reported costs per injury ranged from $261 to $529,609. The median cost reported was $27,820 (interquartile range [IQR] $15,133-$40,124) and median charge reported was $53,832 (IQR $38,890-$98,632). Studies that divided initial hospitalization costs and follow-up medical costs identified that initial hospitalization accounts for about 60% of total costs. CONCLUSIONS: We found a significant volume of literature about the medical costs of firearm injury, which identified a highly heterogeneous cost burden. A significant amount of cost burden occurs after the index hospitalization, which is the only cost reported in most studies. Limitations of this study include reporting bias that favors hospitalized patients as well as a large focus on hospital charges as measurements of cost identified in the literature.

Predicting potential underreporting of firearm ownership in a nationally representative sample.

PURPOSE: This study utilized demographic and intrapersonal variables to identify individuals who may have falsely denied firearm ownership and determined if individuals can be divided into meaningful subgroups. METHODS: Participants were United States residents (N = 3500) recruited from January to June 2020. matched to the 2010 census data for age, race, sex, income, and education level. A Zero-Inflated Negative Binomial (ZINB) regression was utilized to determine potential underreporting of firearm ownership, and a latent class analysis was utilized to determine unique subgroups of those who were identified as underreporting firearm ownership in the ZINB. RESULTS: Participants (N = 1306) were identified as underreporting firearm ownership (excess zeros) based on a model that included demographic and intrapersonal variables. A latent class analysis indicated that among excess zeros, three unique subgroups exist. CONCLUSIONS: Determining who may be underreporting firearm ownership will allow for a more comprehensive understanding of firearm ownership in the US and more targeted safe storage messages that may reach those who own firearms and are at risk for firearm-related injury and death.

Safer neighborhoods? Violent crime and trauma volume pre/post targeted police interventions in Dallas, Texas.

BACKGROUND: Project Safe Neighborhoods: Dallas (PSND) is part of a national initiative that partners federal, state, and local stakeholders and law enforcement to reduce violent crime, especially firearm violence, in select communities. The authors' hospital is located centrally in PSND's target areas, and the trauma center's service area fully covers the target areas. This cohort study evaluated PSND's effectiveness by examining if PSND's April 2018 launch was associated with decreases in (1) violent crime or (2) the rate of patients presenting with firearm and assaultive injuries. METHODS: Data on violent crime (murder/non-negligent homicide, robbery, and aggravated assault) were obtained from all municipalities in the county for January 2015 - December 2020. Patient volume data were queried from the trauma registry for the same period. Nonlinear spatiotemporal models were used to calculate estimated rates and confidence intervals; derivatives were used to determine periods of significant change. Spatial point pattern tests assessed potential relocation of criminal activity. Given the importance of reducing violent crime, alpha was set at 0.05. RESULTS: The target areas' violent crime rate remained higher than the non-target areas' throughout the study period, and target area violent crime non-significantly increased after PSND's launch. Violent crime in the non-target area increased significantly between February 2018 and February 2019. Part of this increase was attributable to a 7-fold increase (odds ratio [95% confidence interval] = 7.32 [2.58, 30.65], p < 0.001) in one police patrol beat just outside of the target areas. After years of decreases, rates of patients presenting with assaultive injuries or firearm injuries began significantly increasing and nearly doubled within two years of PSND. CONCLUSIONS: Results suggest PSND was ineffective. Criminal activity in the target area was not reduced relative to its pre-intervention levels or relative to the non-target areas. Offenders may have moved outside the target areas to evade increased scrutiny. Additionally, rates of firearm and assaultive injuries increased. As trusted third parties, trauma centers should consider evaluating local crime and injury prevention programs for effectiveness.

Firearms and post-separation abuse: Providing context behind the data on firearms and intimate partner violence.

AIM: The aim of this study is to provide insight from maternal survivors of intimate partner violence (IPV) describing their experiences with their ex-partners' firearm ownership, access, storage and behaviours in the context of co-parenting and separation. DESIGN: We conducted a qualitative descriptive study informed by the IPV and Coparenting Model. METHODS: The analytic sample consists of self-identified maternal survivors (n = 14) who completed semi-structured qualitative interviews between January and May 2023 describing experiences of post-separation abuse. Participants were recruited through social media and domestic violence advocacy and legal aid organizations. In the interview guide, participants were asked one item about firearm exposure: Have you or your children had any experiences with guns and your ex-partner that made you or your children feel scared? Interviews were audio-recorded and transcribed. Interview transcripts were managed and coded in ATLAS.ti using a codebook. Codes were applied using descriptive content analysis, discrepancies reconciled and themes related to firearm exposure in the context of post-separation abuse identified. RESULTS: Six themes emerged related to firearm experiences and post-separation abuse: (1) gun ownership (2) gun access; (3) unsafe storage; (4) direct and symbolic threats; (5) involving the children; (6) survivors' protective actions. CONCLUSION: This manuscript provides context on how abusive ex-partners' firearm ownership, access and threats cause terror and pervasive fear for mothers and children following separation. Analysis of qualitative data provides important insights into opportunities to address firearm injury prevention. IMPACT: Findings add to the contextual understanding of how survivors of IPV experience non-fatal firearm abuse. Existing quantitative data may not capture the full extent of fear caused by perpetrators' gun ownership access and symbolic threats. Data from this study can help inform firearm injury prevention efforts. PATIENT OR PUBLIC CONTRIBUTION: The authors would like to acknowledge and thank the individuals who helped in cognitive testing of the interview guide prior to conducting interviews with participants, including (3) survivors of post-separation abuse. The authors would also like to acknowledge domestic violence advocates and those individuals who helped with recruitment and connected us with participants. Importantly, with deep gratitude, the authors would like to thank the participants who generously shared their time and stories with us.

Using intent to get ahead of pediatric cranial firearm injuries.

OBJECTIVE: Pediatric firearm injuries (PFI) are a public health crisis. Little is known about how injury intent may influence the outcome of pediatric cranial firearm injuries (PCFI). The current study sought to compare demographics and outcomes of PCFI based on intent of injury. METHODS: The Nationwide Readmission Database (2010-2014) was queried to identify patients <18 years old with PCFI. Demographics and outcomes were compared by injury intent (assault, self-inflicted, unintentional), and results were weighted for national estimates to create a population-based cohort study. RESULTS: There were 1,365 cases of PCFI identified for an incidence of 11% of all PFI. The majority of patients were male (83 %), >13 years (81 %), and had an injury severity score >15 (79 %). Overall PCFI mortality was 43 %, compared to 6 % for all PFI. Assault was the most common intent (51 %), followed by self-inflicted (25 %), and unintentional (24 %). Assault was more likely to occur in patients from low-income households (61 % vs. 31 % self-inflicted vs. 42 % unintentional), p < 0.001. Unintentional injuries occurred in those <13 years old (40 % vs. 12 % assault vs. 16 % self-inflicted) and more often resulted in facial fracture (19 % vs. 11 % vs. 13 %), all p < 0.001. Readmission rate within the year was 21 %. The majority (56 %) of readmissions were unplanned, and the rate was highest for assault (77 % vs. <1 % self-inflicted vs. 44 % unintentional, p < 0.001). CONCLUSIONS: PCFI are associated with significant morbidity and mortality. Demographics and outcomes vary by intent of injury; knowledge of these patterns can direct future interventions to reduce injuries and impact outcomes.