Historical redlining and the epidemiology of present-day firearm violence in the United States: A multi-city analysis

Racialized economic segregation and youth firearm carriage: community violence as a mediator

Firearm carriage poses a significant public health challenge, especially for youth (ages 14-24) living in predominantly Black communities that endured racial and economic segregation. Structural racism is a determinant of fatal and nonfatal firearm assaults, but the influence of structural racism on youth firearm carriage has received limited attention. Our study examines whether community violence exposure mediates the association between racialized economic segregation and youth firearm carriage. We analyzed data among 599 youths who sought emergency care and reported drug use within the past six months. Our mediation analysis revealed that increased racialized economic segregation was associated with higher perceived community violence. In turn, a heightened perception of community violence was associated with youth firearm carriage. Our findings advocate for upstream interventions that address the systemic marginalization of Black communities from economic isolation to mitigate community violence and, ultimately, reduce risk for youth firearm carriage.

Redlining, reinvestment, and racial segregation: a bayesian spatial analysis of mortgage lending trajectories and firearm-related violence

BACKGROUND

In the United States, firearm-related violence disproportionately impacts low-income, racially segregated communities more than affluent, predominantly White neighborhoods. This trend stems from historical disinvestment, discriminatory lending practices, and persistent structural inequalities. Housing policies have enforced racial segregation, limiting wealth accumulation in low-income communities. This study examines the relationship between historical and contemporary lending discrimination in mortgage originations and firearm-related violence in Chicago, Illinois. By analyzing investment and disinvestment patterns, we assess how housing discrimination continues to influence the risk of victimization in various social contexts.

METHODS

Redlining scores were derived from the 1930s Homeowners' Loan Corporation (HOLC) grades, while contemporary lending indicators were obtained from the 2019 Home Mortgage Disclosure Act (HMDA). We classified neighborhoods into four lending trajectories-sustained disinvestment, disinvestment, growing investment, and high investment-based on historical redlining and contemporary mortgage lending patterns. Sustained disinvestment reflects historical redlining and ongoing lending discrimination, while growing investment targets areas that were historically redlined but are now experiencing increased lending activity. Bayesian spatial models examined firearm-related homicide risk across lending trajectories, adjusting for area deprivation index (ADI) and racial segregation.

RESULTS

In unadjusted models, sustained disinvestment (Relative Risk [RR] = 2.230, 95% CrI: [1.352, 3.681]) was associated with increased firearm-related homicide risk, while growing investment (RR = 0.782, 95% CrI: [0.452, 1.359]) and high investment (RR = 0.146, 95% CrI: [0.054, 0.397]) were associated with lower risk. After adjusting for ADI and racial segregation, the effect of sustained disinvestment attenuated (RR = 1.714, 95% CrI: [1.054, 2.791]), suggesting partial mediation. However, growing investment increased by 155% (RR = 1.987, 95% CrI: [1.144, 3.458]), indicating suppression, indicating that ADI and segregation initially masked its association with firearm homicide risk.

CONCLUSION

Findings highlight the need for policies that address the long-term effects of lending discrimination. Reverse redlining-where financial institutions target minority communities with high-cost loans-further exacerbates existing inequities. Additionally, neighborhood deprivation and segregation shape firearm-related violence risk, underscoring the broader consequences of systemic housing discrimination.

Community-engaged crime prevention through environmental design and reductions in violent and firearm crime

In the U.S., crime and violence are concentrated in cities that have lost industry and population due to economic disinvestment and structurally racist policies. Researchers, practitioners, and policymakers have called for community-level approaches that reduce violence in these cities by improving unsafe physical environments, increasing social equity and cohesion, and engaging community members in neighborhood change. We tested Busy Streets Theory by examining how community-engaged Crime Prevention through Environmental Design (CPTED) strategies implemented by a community coalition may reduce violent and violent firearm crime incidents in Flint, Michigan, a legacy city in the Midwestern U.S. We used linear mixed effects regression models to examine how the annual aggregate intensity of physical and social CPTED activities from 2015 to 2018 was associated with changes in annual violent crime levels from 2016 to 2019 for 505 street segments in Flint, MI. After adjusting for baseline violent crime density, neighborhood disadvantage, property maintenance, and spatially lagged violent crime density, we observed that higher levels of community-engaged CPTED intensity were associated with steeper declines in violent crime density over time (β = -0.14, p < 0.001). Similarly, higher levels of community-engaged CPTED intensity were associated with steeper declines in violent firearm crime density over time (β = -0.19, p < 0.001). The results suggest the vital role that creating busy streets through community-engaged CPTED may play in community violence prevention.

Inequities in Intimate Partner Homicide: Social Determinants of Health Mediate Racial/Ethnic Disparities

INTRODUCTION

Intimate partner violence accounts for up to one half of all homicides of women in the U.S. Rates of intimate partner homicide are associated with both race/ethnicity and social determinants of health, but their relative contribution is incompletely understood.

METHODS

The authors used negative binomial regression to model the relationship between counties' racial/ethnic composition and their rates of intimate partner homicide of women, controlling for urbanicity, median income, gender pay gap, unemployment, school funding, and violent crime rate. Data from 49 states and the District of Columbia between 2016 and 2021 were used. Analyses were conducted in 2024.

RESULTS

In unadjusted analysis, counties with a lower proportion of White residents experienced higher rates of intimate partner homicide (incidence rate ratios [IRR]=1.11; 95% CIs=1.08, 1.13). When controlling for social determinants of health, this association was not observed (IRR=1.01; 95% CI=0.97, 1.04). Median income, school funding, and violent crime rate were independent predictors of intimate partner homicide in the multivariate model.

CONCLUSIONS

Racial/ethnic composition of a population does not independently predict its rate of intimate partner homicide when controlling for social determinants of health. Racial/ethnic inequities in intimate partner homicide are largely attributable to structural factors, which may be modifiable through policy changes.

Exploring the Role of Fear, Civic Disengagement, and Economic Disenfranchisement Within Communities that Experience Gun Violence

A growing body of research has documented how gun violence can affect mental and physical health outcomes among adults. Likewise, the literature is also beginning to reveal negative psychological effects related to distress and hypervigilance and sociological implications around diminished community engagement and economic opportunity. However, there remains a need to fully explore the role of fear related to the experience of gun violence. Through a qualitative inquiry consisting of community resident focus groups and community leader interviews, this study examined how participants' perceptions of fear related to their exposures to and experiences of gun violence. The findings highlight the pervasive emotional experience of existing in a fearful, distressed, and/or anxious state within certain communities, and how civic disengagement, neighborhood disconnection, and economic disenfranchisement exist in communities that disproportionately experience violence.

Financial toxicity and firearm injury: exploring financial needs of participants in a hospital-based violence intervention program

ABSTRACT

Background

Financial toxicity refers to financial hardship experienced because of illness or injury. Poverty is a known driver of community violence, but financial toxicity has not been studied in firearm violence survivors. The objective of our study was to explore the financial needs of firearm violence survivors enrolled in a hospital-based violence intervention program (HVIP). We hypothesized that survivors would report numerous financial needs.

Methods

This was a mixed-methods, retrospective study of firearm violence survivors enrolled in the Miami-Dade County HVIP from 2022 to 2023. Patients were eligible for enrollment if they were injured in shooting incidents that occurred in Miami-Dade police districts with high rates of group violence or gang-related violence. Social worker intake and longitudinal case records were reviewed. A qualitative thematic analysis of social worker notes was performed. Quantitative data were analyzed with descriptive statistics and χ2 tests for association.

Results

103 patients were enrolled in the program. The median age was 27 years. The majority of patients were black (82.5%) and male (83.5%). More patients were insured (59.2%) than uninsured (40.8%). Thematic analysis revealed 10 distinct financial needs, including assistance with victim crime compensation (75.7% of patients), medical bills (35.0%), wage loss (22.3%), insurance applications (14.6%), burial (13.6%), and emergency relocation (12.6%). Overall, financial needs were identified for 94 (91.3%) patients: 91 (88.3%) at initial program intake and 3 additional patients (2.9%) during longitudinal case management.

Conclusions

Survivors of firearm violence experience financial challenges after injury. Thus, financial support and assessment for financial toxicity should be included in firearm violence survivorship programs. Future investigations should use validated measures to study the financial toxicity of firearm violence survivors longitudinally.

A systematic review of historic neighborhood redlining and contemporary health outcomes

OBJECTIVES

Historic redlining grades that were assigned to US neighborhoods based largely on minority race or ethnicity by the Home Owners Loan Corporation (HOLC) during the 1930s have been linked with adverse health outcomes among neighborhood residents. This review aimed to summarize the quantitative evidence, so we could determine if any findings are replicated and otherwise identify research gaps.

STUDY DESIGN

Systematic review.

METHODS

We conducted a systematic review by searching the PubMed® MEDLINE database for observational studies that reported on health outcomes among people who resided in neighborhoods that were assigned HOLC grades. We assessed quality by allocating points based on whether studies reported the sample size or count of people affected by outcomes (yes = 1 point, no = 2 points), and whether unadjusted magnitudes of association were reported alongside adjusted estimates (yes = 1 point, no = 2 points). The sum score was used to classify each study as high (2 points), average (3 points) or low quality (4 points).

RESULTS

Among the 89 articles identified, 32 met inclusion criteria; 15 were deemed high-quality. The most frequently studied health conditions in order of descending frequency were: i) injury or violence (n = 8), ii) cancer (n = 7), iii) cardiometabolic (n = 6), iv) perinatal (n = 5), v) asthma (n = 2).

CONCLUSION

People who lived in areas with less desirable HOLC grades tended to suffer higher than expected rates of injury or violence, asthma, adverse pregnancy outcomes, and some cardiometabolic disorders; associations with cancer were mostly null. Methodological differences limited opportunities for direct comparison across studies, and there was significant heterogeneity among the few estimates that were generally comparable. While robust data are lacking, the limited existing evidence supports a possible association between historically redlined areas and heightened risk of adverse health outcomes. Why this association may exist remains unknown.

Defining harmful news reporting on community firearm violence: A modified Delphi consensus study

Community firearm violence (CFV), including fatal and non-fatal shootings that result from interpersonal violence, disproportionately harms people from marginalized racial groups. News reporting on CFV can further exacerbate these harms. However, examining the effects of harmful news reporting on CFV on individuals, communities, and society is hindered by the lack of a consensus definition of harmful reporting on CFV. In this study, we aimed to define harmful reporting on CFV. We used a modified, three-round Delphi process to achieve consensus among diverse stakeholders. Round 1 sought to assess consensus on 12 potentially harmful news content elements for three levels of harm (individual, community, and society). Round 2 invited panelists to rate the severity of each news content element at each level of harm. Round 3 asked panelists to agree or disagree with the panel's median severity rating of each element at each level of harm. Twenty-one panelists were recruited from three expertise groups (lived experience of CFV, journalism practice, scholarship) and all panelists completed all three rounds. In Round 1, no negative consensus was achieved for any of the proposed news content elements. In Round 2, panelists assigned moderate to severe harm ratings for all but two news content elements, and median harm ratings for each element varied across the different levels of harm. In Round 3, panelists reported high levels of agreement for each harm rating at each level. This modified Delphi process yielded a definition of the 12 elements that comprise harmful news reporting on CFV and severity ratings of harm caused by each element at each level according to expert consensus. Future work will use these results to evaluate and intervene on harmful reporting on CFV. Reducing harm from reporting on CFV can help address this health disparity and support evidence-based approaches to this urgent public health issue.

Contextual Factors Influencing Firearm Deaths Occurring Among Children

OBJECTIVES

Contextual factors that contribute to firearm injuries among children aged 0 to 10 are not well understood.

METHODS

A retrospective review of the National Fatality Review-Case Reporting System was conducted for firearm deaths of children aged 0 to 10 from 2004 to 2020. Descriptive analyses characterized child and parent demographics, incident details, firearm characteristics, and firearm use. Cluster analysis identified key clustering of contextual variables to inform prevention efforts.

RESULTS

Within the study timeframe, 1167 child firearm deaths were reported (Mage = 4.9; 63.2% male; 39.4% urban). At the time of the incident, 52.4% of firearms were reported unlocked and 38.5% loaded. Firearm deaths occurred primarily at the child's home (69.0%) or a friend or relative's home (15.9%), with most involving a handgun (80.6%). Children were supervised in 74.6% of incidents, and 38.4% of child supervisors were impaired during the incident. Cluster analysis identified incident contextual factors clustering in distinct groups, including unsupervised firearm play, long gun discharge while cleaning, hunting, or target shooting, supervised discharge within the child's home, murder-suicide events, deaths occurring in the context of intimate partner violence, and community violence firearm deaths.

CONCLUSIONS

Data highlight the importance of primary prevention through secure firearm storage to prevent child firearm deaths. Efforts focused on identifying and reducing intimate partner violence, addressing community violence (eg, community greening), and implementing policy that limit firearm access (eg, domestic violence restraining orders, background checks), may reduce child firearm deaths.

Connecting Past to Present: Does Historical Redlining Affect Current Life Expectancy?

INTRODUCTION

Previous research has documented a strong relationship between currently living in the redlined zones of the 1930s and suffering from a higher prevalence of disease. However, little is known about the relationship between historical redlining, modern-day redlining, and current resident health outcomes. This paper aimed to simultaneously model the associations between both historical redlining and modern-day redlining on current health outcomes.

METHODS

In this paper, we used structural equation modeling to uncover relationships between current and historical redlining practices and modern-day life expectancy, exploring two levels of potential mediating factors: (1) racial segregation and structural racism; and (2) mediating health outcomes. We analyzed data from 11,661 census tracts throughout the United States using historical redlining data from 1940, modern redlining data from 2010 to 2017, racial segregation and structural racism indices from 2010 to 2019, health outcome data from 2021 to 2022, and life expectancy data from 2010 to 2015. Historical redlining was measured using Home Owners' Loan Corporation (HOLC) ratings, which ranged from 1.0 for favorable neighborhoods ("greenlined") to 4.0 for unfavorable ("redlined") neighborhoods. Modern-day redlining was measured using Home Mortgage Disclosure Act (HMDA) data, which were transformed into four quartiles, ranging from level 1 (low mortgage rejection rates) to level 4 (high mortgage rejection rates).

RESULTS

We found a significant relationship between historic redlining and current life expectancy, with average life expectancy decreasing steadily from 80.7 years in HOLC 1 tracts to 75.7 years in HOLC 4 tracts, a differential of 5.0 years between the greenlined and redlined tracts. We also found a significant relationship between modern-day redlining and current life expectancy, with average life expectancy decreasing steadily from 79.9 years in HMDA 1 tracts to 73.5 years in HMDA 4 tracts, a differential of 6.4 years. In the structural equation model, historical redlining had a total effect of decreasing life expectancy by 1.18 years for each increase of one in the HOLC rating. Modern-day redlining had a total effect of decreasing life expectancy by 1.89 years for each increase of one in the HMDA quartile.

CONCLUSION

This paper provides new evidence that the legacy of redlining is not relegated to the history books but rather is a present and pressing public health issue today.

Using EMS data to explore community-level factors associated with firearm violence in North Carolina

BACKGROUND

Firearm violence is a significant public health issue. However, it is unclear if there is an association between the Social Vulnerability Index (SVI) and the intent of both fatal and nonfatal firearm injuries, and if these associations are modified by community race and ethnic composition. This study examines the association between community-level social vulnerability and firearm injury incidence in North Carolina (NC) using 2021-2022 emergency medical services (EMS) data. Additionally, it investigates how these associations vary by the intent of injury (assault, self-inflicted, and unintentional), and whether they are modified by community racial/ethnic composition.

METHODS

This cross-sectional study utilized NC EMS data, capturing firearm incidents from January 1, 2021, to December 31, 2022. The SVI from the Centers for Disease Control and Prevention (CDC) was used to assess community-level vulnerability. The SVI's racial/ethnic minority status component was removed for stratification analysis. Firearm injury rates were calculated per 100,000 population, and negative binomial regression models were used to estimate Incidence Rate Ratios (IRRs) for different SVI levels and intents of firearm injuries.

RESULTS

During the study period, we identified 7,250 EMS encounters at non-healthcare locations related to firearm injuries, encompassing 2,648 NC census tracts. Assault was the leading cause of firearm injuries (n = 3,799), followed by self-inflicted (n = 1,498), and unintentional injuries (n = 722). High-SVI communities had significantly higher rates of firearm injuries compared to low-SVI communities, particularly for assault-related injuries. When the minority status component was excluded from SVI, racial/ethnic minority status emerged as a significant modifier, with higher rates of firearm injuries being observed in communities with larger racial/ethnic minority populations.

CONCLUSION

Community-level social vulnerability is significantly associated with firearm injury incidence, with the effect being more pronounced in racial/ethnic minority communities. These findings underscore the need for targeted public health interventions that address underlying social determinants of health (e.g., access to education) to reduce firearm violence. Future research should further explore the intersection of social vulnerability and racial/ethnic composition to develop effective prevention strategies.

Re-politicizing the WHO's social determinants of health framework

Although the World Health Organization's (WHO's) framework on social and structural determinants of health and health inequities (SSDHHI) has done much to raise awareness of these determinants, it does not go far enough in considerations of politics and power. The framework has become more de-politicized since its publication, with the definition of social determinants shifting toward downstream and individualized factors. In the meantime, new research fields on legal, commercial and political determinants of health and health inequities have emerged; however, these have not become integrated adequately into broader SSDHHI frameworks. To address these challenges, we argue for a re-politicization and an expansion of the WHO's framework by including the agents who have power over shaping structural determinants and the ways they use power to shape these determinants. We also provide a more detailed conceptualization of structural determinants to facilitate research. We propose a guideline for evaluating studies according to the extent to which they point upstream versus downstream and incorporate agents and considerations of power. We then use this framework to encourage more research on associations among agents, mechanisms of power, and structural determinants; how changes in structural determinants affect power dynamics among agents; and a wider focus on structural determinants beyond laws and policies, such as broad economic and sociopolitical systems. We also urge researchers to consider societal and institutional forces shaping their research with respect to SSDHHI. Research based on this framework can be used to provide evidence for advocacy for structural changes and to build more just systems that respect the fundamental human right to a healthy life.

Historical redlining, neighborhood disadvantage, and reports of child maltreatment in a large urban county

BACKGROUND

Child protective services (CPS) reports are spatially concentrated in disadvantaged neighborhoods and Black children are more likely than White children to reside in these neighborhoods. Entrenched patterns of racial residential segregation reflect the lasting impact of historical redlining - a racist practice spearheaded by the federally sponsored Home Owners' Loan Corporation (HOLC) in the 1930s that assigned worst risk grades to minoritized neighborhoods. Research has established links between historically redlined areas and the present-day wellbeing of children and families; however, little is known about the relationship between historical redlining and CPS report rates in neighborhoods.

OBJECTIVE

Using census tracts as a proxy for neighborhood, this study examines the relationship between historical redlining and the number of CPS reports within neighborhoods.

PARTICIPANTS, SETTING, AND METHOD

This study combines data on HOLC risk grades and sociodemographic data from the American Community Survey with the aggregate number of CPS reports per census tract in Los Angeles County, CA (n = 1137).

RESULTS

We used Bayesian conditionally autoregressive models to examine the relationship between historical redlining score (A = 1, B = 2, C = 3, D = 4) and the number of CPS reports within neighborhoods. In the unadjusted model, each unit increase in redlining score is associated with a 21.6 % higher number of CPS reports (95 % CI; 1.140, 1.228). In adjusted models that included concentrated disadvantage, each unit increase in redlining score is associated with a 7.3 % higher number of CPS reports (95 % CI; 1.021, 1.136).

CONCLUSION

Housing policy reforms through a racial equity lens should be considered as a part of a national strategy to prevent child maltreatment.

Association between social vulnerability factors and homicide and suicide rates - United States, 2016 - 2020

BACKGROUND

Differences in social and environmental factors contribute to disparities in fatal injury rates. This study assessed the relationship between social vulnerability and homicide and suicide rates across United States counties.

METHODS

County-level age-adjusted homicide and suicide rates for 2016-2020 were linked with data from the Centers for Disease Control and Prevention's 2020 Social Vulnerability Index (SVI), a dataset identifying socially vulnerable communities. We conducted negative binomial regressions to examine the association between SVI and homicide and suicide rates, overall and by Census region/division. We mapped county-level data for SVI and homicide and suicide rates in bivariate choropleth maps.

RESULTS

Overall SVI was associated with homicide rates across U.S. counties. While no association was found for overall SVI and suicide rates, Socioeconomic Status and Racial & Ethnic Minority Status domains were associated. The geographic distribution of SVI and homicide and suicide rates varied spatially; notably, counties in the South had the greatest levels of social vulnerability and greatest homicide rates.

CONCLUSIONS

Our findings demonstrate county-level social vulnerability is associated with homicide rates but may be more nuanced for suicide rates. A modified SVI for injury should include additional social and structural determinants and exclude variables not applicable to injuries.

PRACTICAL APPLICATIONS

This study combines the SVI with homicide and suicide data, enabling researchers to examine related social and environmental factors. Modifying the SVI to include relevant predictors could improve injury prevention strategies by prioritizing efforts in areas with high social vulnerability.

Temperature and firearm violence in four US cities: testing competing hypotheses

INTRODUCTION

Firearm violence is a major public health issue in the USA. There is growing evidence that firearm violence is associated with higher ambient temperatures. The aim of this study was to test competing hypotheses that could explain associations between temperature and firearm violence: temperature-aggression theory and routine activities theory.

METHODS

We examined associations between elevated daily temperatures and shooting incidents in four US cities: Chicago, Illinois; Cincinnati, Ohio; New York, New York and Philadelphia, Pennsylvania. Temperature was operationalised using two different measures: daily maximum temperature and deviations of the daily maximum temperature from 30-year averages. Generalised linear autoregressive moving average models related temperature to shooting incidence while controlling for seasonal effects.

RESULTS

As maximum daily temperature deviates from the expected, there was an association with increased shooting incidents in all four cities (eg, New York: b=0.014, 95% CI=0.011 to 0.017). An interaction term created by multiplying daily maximum temperature by the daily difference of maximum temperature from a 30-year average was also found to have a positive association in all four cities (eg, New York: b=0.020, 95% CI=0.016 to 0.025).

DISCUSSION

These findings accord with previous studies demonstrating a positive relationship between temperature and firearm violence and further support temperature-aggression theory as the primary causal mechanism.

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.

Risk and Protective Factors for Firearm Assault Injuries Among Black Men: A Scoping Review of Research

Black men are disproportionately affected by firearm assaults in the United States, and these disparities are rooted in structural and social inequities. The objective of this scoping review of research was to identify risk and protective factors for firearm assault injuries among Black men at all levels of the social-ecological framework. The search was conducted in 2021. The initial search generated 1,122 articles. Studies were eligible if they (a) included an analysis of modifiable risk or protective factors for firearm assaults among Black men; (b) reported an estimate of correlation, association, or effect between risk or protective factors and firearm assault injuries, firearm violence, and/or firearm homicides; and (c) were published peer-reviewed articles. In all, 19 articles were identified for review. Risk factors identified at each ecological level include the following: (1) Individual: firearm possession/weapon use and criminal legal system interaction; (2) Relationships: gang membership and exposure to other people who have experienced a firearm assault; (3) Community: indicators for socioeconomic status and racial residential segregation; and (4) Societal: historical racist policy. Individual-level substance use had mixed results. Few (26%) studies examined protective factors at any ecological level, but community-level factors like neighborhood tree cover were identified. Future research needs to examine risk and protective factors at the societal level and multiple ecological levels simultaneously leading to more effective multi-level interventions that will guide policy formation. A greater diversity of study designs, research methods, and theoretical frameworks is needed to better understand factors associated with firearm assault among Black men.

Examining the Influence of Historical Redlining on Firearm Injuries in Current Day Baltimore, Maryland

Firearm injuries are a common and major public health problem in Baltimore, Maryland. The city is also one of the first U.S. cities in which the 1930s discriminatory practice of redlining first emerged. This study examines the association between current day firearm injuries and residence in these historically redlined areas at a neighborhood level using zip codes. Firearm injury outcomes in patients who presented to a hospital in Maryland from 2015 to 2020 were measured from the Health Services Cost Review Commission (HSCRC) in conjunction with both geospatial data from Richmond's Digital Scholarship Lab's Mapping Inequality project and population data from the U.S. Census. A redlining score was calculated to represent the extent of redlining in each zip code. Negative binomial regression models were utilized to measure the association between neighborhood zip codes and rate of firearm injuries. Our adjusted regression model shows that for every one-unit increase of the Home Owners' Loan Corporation (HOLC) redlining score, there is a 2.24-fold increase in the rate of firearm injuries (RR 2.24; 95% CI: 0.31, 1.31, p < 0.001). These findings suggest a strongassociation between historically redlined areas and population risk of firearm injury today. Further research is needed to investigate the underlying mechanisms that may contribute to this relationship, such as access to firearms or social and economic factors. Overall, our study highlights the potential impact of historical redlining policies on contemporary health outcomes in Baltimore.

Systematic disparities in reporting on community firearm violence on local television news in Philadelphia, PA, USA

Objective

To better understand how community firearm violence (CFV) is communicated to the public, we aimed to identify systematic differences between the characteristics of shooting victims and events covered on television news and all shootings in Philadelphia, PA, a city with escalating CFV incidence.

Methods

We compiled a stratified sample of local television news clips covering shootings that occurred in Philadelphia aired on two randomly selected days per month from January-June 2021 (n = 154 clips). We coded the clips to determine demographic and geographic information about the shooting victims and events and then matched coded shootings with corresponding shootings in the Philadelphia police database. We compared characteristics of shooting victims and shooting event locations depicted in television clips (n = 62) with overall characteristics of shootings in Philadelphia during the study period (n = 1082).

Results

Compared to all individuals shot, victims whose shootings were covered on local television news more likely to be children and more likely to be shot in a mass shooting. The average median household income of shooting locations featured on television was significantly higher than the median household income across all shooting locations ($60,302 for television shootings vs. $41,233 for all shootings; p = 0.002). Shootings featured on television occurred in areas with lower rates of income inequality and racialized economic segregation compared to all shooting locations.

Conclusions

Television news outlets in Philadelphia systematically over-reported shootings of children, mass shootings, and shootings that occurred in neighborhoods with higher median household income, less socioeconomic inequality, and lower rates of racialized economic segregation.

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.

Historical Redlining and Present-Day Nonsuicide Firearm Fatalities

BACKGROUND

Redlining began in the 1930s with the Home Owners' Loan Corporation (HOLC); this discriminatory practice limited mortgage availability and reinforced concentrated poverty that still exists today. It is important to understand the potential health implications of this federally sanctioned segregation.

OBJECTIVE

To examine the relationship between historical redlining policies and present-day nonsuicide firearm fatalities.

DESIGN

Maps from the HOLC were overlaid with incidence of nonsuicide firearm fatalities from 2014 to 2022. A multilevel negative binomial regression model tested the association between modern-day firearm fatalities and HOLC historical grading (A ["best"] to D ["hazardous"]), controlling for year, HOLC area-level demographics, and state-level factors as fixed effects and a random intercept for city. Incidence rates (IRs) per 100 000 persons, incidence rate ratios (IRRs), and adjusted IRRs (aIRRs) for each HOLC grade were estimated using A-rated areas as the reference.

SETTING

202 cities with areas graded by the HOLC in the 1930s.

PARTICIPANTS

Population of the 8597 areas assessed by the HOLC.

MEASUREMENTS

Nonsuicide firearm fatalities.

RESULTS

From 2014 to 2022, a total of 41 428 nonsuicide firearm fatalities occurred in HOLC-graded areas. The firearm fatality rate increased as the HOLC grade progressed from A to D. In A-graded areas, the IR was 3.78 (95% CI, 3.52 to 4.05) per 100 000 persons per year. In B-graded areas, the IR, IRR, and aIRR relative to A areas were 7.43 (CI, 7.24 to 7.62) per 100 000 persons per year, 2.12 (CI, 1.94 to 2.32), and 1.42 (CI, 1.30 to 1.54), respectively. In C-graded areas, these values were 11.24 (CI, 11.08 to 11.40) per 100 000 persons per year, 3.78 (CI, 3.47 to 4.12), and 1.90 (CI, 1.75 to 2.07), respectively. In D-graded areas, these values were 16.26 (CI, 16.01 to 16.52) per 100 000 persons per year, 5.51 (CI, 5.05 to 6.02), and 2.07 (CI, 1.90 to 2.25), respectively.

LIMITATION

The Gun Violence Archive relies on media coverage and police reports.

CONCLUSION

Discriminatory redlining policies from 80 years ago are associated with nonsuicide firearm fatalities today.

PRIMARY FUNDING SOURCE

Fred Lovejoy Housestaff Research and Education Fund.

Addressing Systemic Racism and Racialized Violence to Reduce Firearm Injury and Mortality Inequities

This JAMA Forum discusses systemic racism and racialized violence, promising approaches to address inequities in firearm violence, and ways to treat the trauma of gun violence.

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.

Historic redlining and health outcomes: A systematic review

OBJECTIVE

The purpose of this systematic review was to synthesize the existing literature on the associations between historic redlining and modern-day health outcomes across the lifespan.

METHOD

This review searched PubMed and CINAHL for peer-reviewed, data-based articles examining the relationship between historic redlining and any health outcome. Articles were appraised using the JBI critical appraisal checklist. The results were synthesized using a narrative summary approach.

RESULTS

Thirty-six articles were included and focused on various health outcomes, including cardiovascular outcomes, breast cancer incidence and mortality, firearm injury or death, birth-related outcomes, and asthma outcomes. Most of the included articles (n = 31; 86%) found significant associations between historic redlining and adverse health outcomes such as increased cardiovascular disease, higher rates of preterm births, increased cancer incidence, reduced survival time after breast cancer diagnosis, and increased firearm injury incidence.

DISCUSSION

This review demonstrates the persistent effect of historic redlining on individuals' health. Public health nurses should recognize redlining as a form of structural racism when caring for affected communities and should advocate for policies and programs that advance health equity. Nurse researchers should develop and test multilevel interventions to address systemic racism and improve health outcomes in communities affected by redlining.

Geospatial Analysis of Social Vulnerability, Race, and Firearm Violence in Chicago

INTRODUCTION

Urban firearm violence (UFV) is associated with inequities rooted in structural racism and socioeconomic disparities. Social vulnerability index (SVI) is a composite measure that encompasses both. We sought to understand the relationship between SVI and the incidence of UFV in Chicago using geospatial analysis for the first time.

MATERIALS AND METHODS

Firearm assaults in Chicago 2001-2019 were obtained from the Trace. Locations of incidents were geocoded using ArcGIS and overlaid with census tract vector files. These data were linked to 2018 SVI measures obtained from the Center for Disease Control and Prevention. Shooting rates were calculated by tabulating the total number of shootings per capita in each census tract. We used Poisson regression with robust error variance to estimate the incident rate of UFV in different levels of social vulnerability and Local Moran's I to evaluate spatial autocorrelation.

RESULTS

In total, 642 census tracts were analyzed. The median shooting rate was 2.6 per 1000 people (interquartile 0.77, 7.0). When compared to those census tracts with very low SVI, census tracts with low SVI had a 1.7-time increased incident rate of shootings (incidence rate ratio [IRR] 1.74, 95% CI 1.08, 2.81), tracts with moderate SVI had a 3.1-time increased incident rate (IRR 3.07, 95% CI 2.31, 4.10), and tracts with high SVI had a 7-time increased incident rate (IRR 7.03, 95% CI 5.45, 9.07).

CONCLUSIONS

In Chicago, social vulnerability has a significant association with rates of firearm violence, providing a focus point for policy intervention to address high rates of interpersonal violence in similar cities.

Social Vulnerability and Firearm Violence: Geospatial Analysis of 5 US Cities

BACKGROUND

Firearm violence is now endemic to certain US neighborhoods. Understanding factors that impact a neighborhood's susceptibility to firearm violence is crucial for prevention. Using a nationally standardized measure to characterize community-level firearm violence risk has not been broadly studied but could enhance prevention efforts. Thus, we sought to examine the association between firearm violence and the social, structural, and geospatial determinants of health, as defined by the Social Vulnerability Index (SVI).

STUDY DESIGN

In this cross-sectional study, we merged 2018 SVI data on census tract with shooting incidents between 2015 and 2021 from Baltimore, Chicago, Los Angeles, New York City, and Philadelphia. We used negative binomial regression to associate the SVI with shooting incidents per 1,000 people in a census tract. Moran's I statistics and spatial lag models were used for geospatial analysis.

RESULTS

We evaluated 71,296 shooting incidents across 4,415 census tracts. Fifty-five percent of shootings occurred in 9.4% of census tracts. In all cities combined, a decile rise in SVI resulted in a 37% increase in shooting incidents (p < 0.001). A similar relationship existed in each city: 30% increase in Baltimore (p < 0.001), 50% in Chicago (p < 0.001), 28% in Los Angeles (p < 0.001), 34% in New York City (p < 0.001), and 41% in Philadelphia (p < 0.001). Shootings were highly clustered within the most vulnerable neighborhoods.

CONCLUSIONS

In 5 major US cities, firearm violence was concentrated in neighborhoods with high social vulnerability. A tool such as the SVI could be used to inform prevention efforts by directing resources to communities most in need and identifying factors on which to focus these programs and policies.

Spiritual coping behaviors among injured urban black men in Philadelphia

PURPOSE

High rates of firearm injury among urban Black men in the US can lead to long physical and psychological recovery times, worsened by limited access to mental health services. Spirituality can propel positive thoughts, actions, perceptions and behaviors about self and others yet how it is used among Black men recovering from firearm injury is underexplored. This study examined the role of spirituality in the recovery of Black male survivors of firearm injury.

METHOD

Ten injured urban Black men in Philadelphia were interviewed using descriptive phenomenology. A subset of participants from the Emotional Responses and Recovery from Injury in Urban Black Men study who agreed to be recontacted for future studies were enrolled. Informed consent was obtained, semi-structured interviews were conducted via phone and were audiotaped, transcribed, and de-identified. Thematic content analysis was used to understand perceptions of spirituality and to identify spiritual coping behavior themes.

RESULTS

Findings suggest that injured urban Black men engaged in theistic and non-theistic spiritual activities that resulted in positive character development, reduced risk of re-injury, hope, improved mental health and social bonds.

CONCLUSION

Spirituality may serve as a protective factor against firearm re-injury or retaliation by promoting desired behaviors and mental health among injured urban Black men. Combining culturally sensitive spiritual resources and psychotherapy may lead to effective trauma-informed care in addressing spiritual and existential challenges of injured urban Black men who may find spirituality important.

Exposure to Neighborhood Racialized Economic Segregation and Reinjury and Violence Perpetration Among Survivors of Violent Injuries

Importance

Much is unknown about how individual and neighborhood factors converge in the association with risk for violent reinjury and violence perpetration.

Objectives

To investigate the association of exposure to neighborhood racialized economic segregation with reinjury and use of violence against others among survivors of violent penetrating injury.

Design, Setting, and Participants

This retrospective cohort study was performed using data obtained from hospital, police, and state vital records. The study was performed at Boston Medical Center, an urban, level I trauma center that is the largest safety-net hospital and busiest trauma center in New England. The cohort included all patients treated for a nonfatal violent penetrating injury from 2013 to 2018. Patients with no Boston metropolitan area home address were excluded. Individuals were followed up through 2021. Data were analyzed from February to August 2022.

Exposure

American Community Survey data were used to measure neighborhood deprivation using the racialized economic Index of Concentration at the Extremes (ICE) for patient residential address upon hospital discharge. ICE was measured on a scale from -1 (most deprived) to 1 (most privileged).

Main Outcomes and Measures

Primary outcomes were violent reinjury and police-reported perpetration of violence within 3 years of an index injury.

Results

Of 1843 survivors of violence (median [IQR] age, 27 [22-37] years; 1557 men [84.5%]; 351 Hispanic [19.5%], 1271 non-Hispanic Black [70.5%], and 149 non-Hispanic White [8.3%] among 1804 patients with race and ethnicity data), the cohort was skewed toward residing in neighborhoods with higher racialized economic segregation (median [IQR] ICE = -0.15 [-0.22 to 0.07]) compared with the state overall (ICE = 0.27). There were police encounters for violence perpetration among 161 individuals (8.7%) and violent reinjuries among 214 individuals (11.6%) within 3 years after surviving a violent penetrating injury. For each 0.1-unit increase in neighborhood deprivation, there was a 13% (hazard ratio [HR], 1.13; 95% CI, 1.03 to 1.25; P = .01) increase in risk of violence perpetration but no difference in risk for violent reinjury (HR, 1.03; 95% CI, 0.96 to 1.11; P = .38). The greatest occurrence for each outcome was within the first year after index injury; for example, incidents of violence perpetration occurred among 48 of 614 patients (7.8%) at year 1 vs 10 of 542 patients (1.8%) at year 3 in tertile 3 of neighborhood deprivation.

Conclusions and Relevance

This study found that living in a more economically deprived and socially marginalized area was associated with increased risk of using violence against others. The finding suggests that interventions may need to include investments in neighborhoods with the highest levels of violence to help reduce downstream transmission of violence.