Creating Safe And Healthy Neighborhoods With Place-Based Violence Interventions

Association between property investments and crime on commercial and residential streets: Implications for maximizing public safety benefits

Physical property investments enhance public safety in communities while alleviating the need for criminal justice system responses. Policy makers and local government officials must allocate scare resources for community and economic development activities. Understanding where physical property investments have the greatest crime reducing benefits can inform decision making to maximize economic, safety, and health outcomes. This study uses Spatial Durbin models with street segment and census tract by year fixed effects to examine the impact of physical property investments on changes in property and violent crime over an 11-year period (2008-2018) in six large U.S. cities. The units of analysis are commercial and residential street segments. Street segments are classified into low, medium, and high crime terciles defined by initial crime levels (2008-2010). Difference of coefficients tests identify significant differences in building permit effects across crime terciles. The findings reveal there is a significant negative relationship between physical property investments and changes in property and violent crime on commercial and residential street segments in all cities. Investments have the greatest public safety benefit where initial crime levels are the highest. The decrease in violent crime is larger on commercial street segments, while the decrease in property crime is larger on residential street segments. Targeting the highest crime street segments (i.e., 90th percentile) for property improvements will maximize public safety benefits.

Disadvantaged Neighborhoods Continue to Bear the Burden of Gun Violence

INTRODUCTION

Gun violence is a pervasive and dynamic public health crisis causing substantial burden on communities and healthcare systems in the United States. Risk factor and outcome analyses are crucial to develop effective interventions. The aim of this study was to assess firearm injury in a diverse community setting as it relates to neighborhood socioeconomic disadvantage and changes over time following large-scale local interventions.

METHODS

All county residents with firearm injury presenting to a Level 1 Trauma Center from January 2012 to December 2021 were retrospectively reviewed. Area Deprivation Index (ADI) was used to measure neighborhood socioeconomic disadvantage based on a nine-digit zip code at patients' home address. Injuries were also stratified by 5-year time periods, 2012-2016 and 2017-2021. Demographics and clinical data were analyzed including injury severity, hospital course, and discharge location. Data were compared by ADI quintile and between time periods using chi-squared, one-way analysis of variance, and Cochran-Armitage test.

RESULTS

A total of 1044 injuries were evaluated. Patients were 93% male with mean age of 29 y (standard deviation 10.2) and were concentrated in the most disadvantaged neighborhoods (74% ADI Q5). Black or African American race was greater in the most disadvantaged ADI groups (76% versus 47%-66%; P <0.001). Percentage of total injuries in the most disadvantaged ADI group rose from 71% to 78% over time (P = 0.006). Mortality occurred in 154 (15%) patients overall, while most (71%) were discharged to home. Mortality declined from 18% to 11% over time (P <0.001). Medicaid utilization rose from 42% to 77% alongside a decrease in self-pay status from 44% to 4% (P <0.001). There were no clinically significant group differences in injury severity or clinical characteristics.

CONCLUSIONS

Firearm injury remains concentrated in the most socioeconomically disadvantaged neighborhoods, and this disparity is increasing over time. Medicaid utilization rose and mortality decreased in this population over time. This research presents a method to inform and monitor local gun violence interventions using ADI to address public health equity.

Engaging East Harlem, New York youth in action gun violence prevention research and child rights: a preliminary study

BACKGROUND

The aim of the study was to have youth participate in the design and implementation of a research project set within a child rights framework to better understand high schoolers' perceptions of safety in their school and community.

RESULTS

Between June 2020 and March 2021, a team of East Harlem, New York high school students, participated as co-researchers to modify the United Nations Children's Fund Child Friendly Cities Initiative Survey to suit their needs. Due to the COVID-19 pandemic, the final survey was conducted through an online remote classes system during advisory school classes, accompanied by brief focused group discussions. The novel process of conducting an interactive qualitative and quantitative virtual survey during a pandemic via youth participatory action research is outlined in this paper.

CONCLUSIONS

Our results demonstrate that youth participatory action research can be utilized as part of a child rights framework approach to assess the views of youth regarding community safety and violence prevention.

Community identified characteristics related to illegal dumping; a mixed methods study to inform prevention

Illegal dumping is a public health burden for communities suffering from historical disinvestment. We conducted a mixed methods study to answer: 1) What are stakeholder perspectives on social/environmental determinants of illegal dumping? and 2) Do these or other characteristics predict known locations of illegal dumping? We employed an exploratory sequential design in which we collected and analyzed in-depth interviews (n=12) with service providers and residents and subsequently collected and analyzed data from multiple secondary sources. Stakeholders endorsed nine determinants of illegal dumping: Economic Decline, Scale of Vacancy, Lack of Monitoring, Poor Visibility, Physical Disorder, Illegal Activity, Norms, Accessibility, and Seclusion. Results demonstrate important community-identified, modifiable, social, and environmental characteristics related to illegal dumping with the potential to inform effective prevention.

Impact of firearm injury in children and adolescents on health care costs and use within a family

In 2020, firearm injury became the leading cause of death in U.S. children and adolescents. This study examines sequelae of firearm injury among children and adolescents in terms of health care costs and use within a family over time using an event study design. Using data from a large U.S. commercial insurance company from 2013 to 2019, we identified 532 children and adolescents aged 1-19 years who experienced any firearm-related acute hospitalization or emergency department (ED) encounter and 1667 of their family members (833 parents and 834 siblings). Outcomes included total health care costs, any acute hospitalization and ED visits (yes/no), and number of outpatient management visits, each determined on a quarterly basis 2 years before and 3 years after the firearm injury. Among injured children and adolescents, during the first quarter after the firearm injury, quarterly total health care costs were $24,018 higher than pre-injury; probability of acute hospitalization and ED visits were 27.9% and 90.4% higher, respectively; and number of outpatient visits was 1.8 higher (p < .001 for all). Quarterly total costs continued to be elevated during the second quarter post-injury ($1878 higher than pre-injury, p < .01) and number of outpatient visits remained elevated throughout the first year post-injury (0.6, 0.4, and 0.3 higher in the second through fourth quarter, respectively; p < .05 for all). Parents' number of outpatient visits increased during the second and third years after the firearm injury (0.3 and 0.5 higher per quarter than pre-injury; p < .05). Youth firearm injury has long-lasting impact on health care within a family.

Neighborhoods and child abuse: Multiple informant perspectives

INTRODUCTION

Using data from the nationally representative longitudinal Future of Families and Child Wellbeing Study, the current study sought to examine associations between neighborhood disorder and physical characteristics of the neighborhood at child age three with the likelihood of experiencing physical and psychological abuse and neglect at age five.

METHODS

Negative binomial regression and zero inflated negative binomial regression models were used to estimate the associations.

RESULTS

Resident perceptions of neighborhood disorder and outside observation of neighborhood physical characteristics were both found to be independently related to the likelihood of physical assault. Resident perceptions were related to psychological aggression. A more positive perception of the neighborhood environment for children (lack of neighborhood disorder) and physical characteristics of the neighborhood were protective against maltreatment. These relationships were not significant for neglect.

DISCUSSION

Neighborhood environment is a crucial contributor to maltreatment risk. Findings from the present study showed that multiple perceptions of neighborhood quality were associated with lower risk for child physical assault and psychological aggression. Mothers' perceptions of a more positive neighborhood environment were associated with significantly lower physical assault and psychological aggression scores.

Vacant Building Removals Associated with Relative Reductions in Violent and Property Crimes in Baltimore, MD 2014-2019

Vacant and abandoned buildings are common features in many post-industrial US cities, and are consistent predictors of violence. Demolition programs are regularly employed as an urban land use policy to stabilize housing markets and mitigate public health problems including violence. The objective of this research was to examine the effect of vacant building removals on violent and property crimes in Baltimore, MD from 2014 to 2019. We conducted a difference-in-differences analysis using spatio-temporal Bayesian mixed models on six crime types on block faces with and without building removals, before compared with after removal. There were significant reductions in total, violent crimes (with and without assaults), thefts, and burglaries on block faces with building removals relative to their controls. Total crimes decreased 1.4% per mi2 (CrI: 0.5 - 2.3%), which translates to a relative reduction ~ 2.6 total crimes per mi2 per year. The largest relative decreases in crime were found among assaults (4.9%; CrI: 3.4 - 6.3%) and violent crimes (3.0%; CrI: 1.9 - 4.1%). Building removals were associated with relative reductions in crime in Baltimore City. The relative reductions in crime, at building removals compared to at control vacant lots, were found among assaults and violent crimes, the crimes of greatest public health concern. Building removals provide co-benefits to their communities, and may be considered part of a crime reduction strategy compatible with other approaches. A systematic effort to understand the role of care for remaining vacant lots could further inform our findings, and efforts to further decrease violence and improve community health.

Racialized economic segregation and potentially preventable hospitalizations among Medicaid/CHIP-enrolled children

OBJECTIVE

To examine geographic variation in preventable hospitalizations among Medicaid/CHIP-enrolled children and to test the association between preventable hospitalizations and a novel measure of racialized economic segregation, which captures residential segregation within ZIP codes based on race and income simultaneously.

DATA SOURCES

We supplement claims and enrollment data from the Transformed Medicaid Statistical Information System (T-MSIS) representing over 12 million Medicaid/CHIP enrollees in 24 states with data from the Public Health Disparities Geocoding Project measuring racialized economic segregation.

STUDY DESIGN

We measure preventable hospitalizations by ZIP code among children. We use logistic regression to estimate the association between ZIP code-level measures of racialized economic segregation and preventable hospitalizations, controlling for sex, age, rurality, eligibility group, managed care plan type, and state.

DATA EXTRACTION METHODS

We include children ages 0-17 continuously enrolled in Medicaid/CHIP throughout 2018. We use validated algorithms to identify preventable hospitalizations, which account for characteristics of the pediatric population and exclude children with certain underlying conditions.

PRINCIPAL FINDINGS

Preventable hospitalizations vary substantially across ZIP codes, and a quarter of ZIP codes have rates exceeding 150 hospitalizations per 100,000 Medicaid-enrolled children per year. Preventable hospitalization rates vary significantly by level of racialized economic segregation: children living in the ZIP codes that have the highest concentration of low-income, non-Hispanic Black residents have adjusted rates of 181 per 100,000 children, compared to 110 per 100,000 for children in ZIP codes that have the highest concentration of high-income, non-Hispanic white residents (p < 0.01). This pattern is driven by asthma-related preventable hospitalizations.

CONCLUSIONS

Medicaid-enrolled children's risk of preventable hospitalizations depends on where they live, and children in economically and racially segregated neighborhoods-specifically those with higher concentrations of low-income, non-Hispanic Black residents-are at particularly high risk. It will be important to identify and implement Medicaid/CHIP and other policies that increase access to high-quality preventive care and that address structural drivers of children's health inequities.

An external exposome-wide association study of opioid use disorder diagnosed during pregnancy in Florida

The prevalence of opioid use disorder (OUD) during pregnancy has quadrupled in recent years and widely varies geographically in the US. However, few studies have examined which environmental factors are associated with OUD during pregnancy. We conducted an external exposome-wide association study (ExWAS) to investigate the associations between external environmental factors and OUD diagnosed during pregnancy. Data were obtained from a unique, statewide database in Florida comprising linked individual-level birth and electronic health records. A total of 255,228 pregnancies with conception dates between 2012 and 2016 were included. We examined 82 exposome measures characterizing seven aspects of the built and social environment and spatiotemporally linked them to each individual record. A two-phase procedure was utilized for the external ExWAS. In Phase 1, we randomly divided the data into a discovery set (50 %) and a replication set (50 %). Associations between exposome measures (normalized and standardized) and OUD initially diagnosed during pregnancy were examined using logistic regression. A total of 15 variables were significant in both the discovery and replication sets. In Phase 2, multivariable logistic regression was used to fit all variables selected from Phase 1. Measures of walkability (the national walkability index, OR: 1.23, 95 % CI: 1.17, 1.29), vacant land (the percent vacant land for 36 months or longer, OR: 1.06, 95 % CI: 1.00, 1.12) and food access (the percentage of low food access population that are seniors at 1/2 mile, OR: 1.47, 95 % CI: 1.38, 1.57) were each associated with diagnosis of OUD during pregnancy. This is the first external ExWAS of OUD during pregnancy, and the results suggest that low food access, high walkability, and high vacant land in under-resourced neighborhoods are associated with diagnosis of OUD during pregnancy. These findings could help develop complementary tools for universal screening for substance use and provide direction for future studies.

Challenges, Successes, and the Future of Firearm Injury Prevention

Policy Points Firearm injury is a leading cause of death in the United States, with fatality rates increasing 34.9% over the past decade (2010-2020). Firearm injury is preventable through multifaceted evidence-based approaches. Reviewing past challenges and successes in the field of firearm injury prevention can highlight the future directions needed in the field. Adequate funding, rigorous and comprehensive data availability and access, larger pools of diverse and scientifically trained researchers and practitioners, robust evidence-based programming and policy implementation, and a reduction in stigma, polarization, and politicization of the science are all needed to move the field forward.

Placemaking and infrastructure through the lens of levelling up for health equity: A scoping review

The planning and delivery of infrastructure influences how places create health equity. The scholarship on place and health has recently been developed into 'levelling up' principles for equity focussed policy and planning. We conducted a scoping review of the literature on infrastructure through urban regeneration and placemaking interventions. We interrogated the 15 final selected articles for their use of one or more of the five 'levelling' up principles. No article encompassed all five principles. It was most common to find two or three principles in action. Reviewing the articles against the principles allows a deeper explanation of how infrastructure planning practice can positively impact on health equity. We conclude that applying all the principles in standard infrastructure planning practice has great potential for creating places that are positive for health equity.

Impact of Contextual-Level Social Determinants of Health on Newer Antidiabetic Drug Adoption in Patients with Type 2 Diabetes

BACKGROUND

We aimed to investigate the association between contextual-level social determinants of health (SDoH) and the use of novel antidiabetic drugs (ADD), including sodium-glucose cotransporter-2 inhibitors (SGLT2i) and glucagon-like peptide-1 receptor agonists (GLP1a) for patients with type 2 diabetes (T2D), and whether the association varies across racial and ethnic groups.

METHODS

Using electronic health records from the OneFlorida+ network, we assembled a cohort of T2D patients who initiated a second-line ADD in 2015-2020. A set of 81 contextual-level SDoH documenting social and built environment were spatiotemporally linked to individuals based on their residential histories. We assessed the association between the contextual-level SDoH and initiation of SGTL2i/GLP1a and determined their effects across racial groups, adjusting for clinical factors.

RESULTS

Of 28,874 individuals, 61% were women, and the mean age was 58 (±15) years. Two contextual-level SDoH factors identified as significantly associated with SGLT2i/GLP1a use were neighborhood deprivation index (odds ratio [OR] 0.87, 95% confidence interval [CI] 0.81-0.94) and the percent of vacant addresses in the neighborhood (OR 0.91, 95% CI 0.85-0.98). Patients living in such neighborhoods are less likely to be prescribed with newer ADD. There was no interaction between race-ethnicity and SDoH on the use of newer ADD. However, in the overall cohort, the non-Hispanic Black individuals were less likely to use newer ADD than the non-Hispanic White individuals (OR 0.82, 95% CI 0.76-0.88).

CONCLUSION

Using a data-driven approach, we identified the key contextual-level SDoH factors associated with not following evidence-based treatment of T2D. Further investigations are needed to examine the mechanisms underlying these associations.

An intersectional analysis of historical and contemporary structural racism on non-fatal shootings in Baltimore, Maryland

Introduction Non-fatal shooting rates vary tremendously within cities in the USA. Factors related to structural racism (both historical and contemporary) could help explain differences in non-fatal shooting rates at the neighbourhood level. Most research assessing the relationship between structural racism and firearm violence only includes one dimension of structural racism. Our study uses an intersectional approach to examine how the interaction of two forms of structural racism is associated with spatial non-fatal shooting disparities in Baltimore, Maryland. Methods We present three additive interaction measures to describe the relationship between historical redlining and contemporary racialized economic segregation on neighbourhood-level non-fatal shootings. Results Our findings revealed that sustained disadvantage census tracts (tracts that experience contemporary socioeconomic disadvantage and were historically redlined) have the highest burden of non-fatal shootings. Sustained disadvantage tracts had on average 24 more non-fatal shootings a year per 10 000 residents compared with similarly populated sustained advantage tracts (tracts that experience contemporary socioeconomic advantage and were not historically redlined). Moreover, we found that between 2015 and 2019, the interaction between redlining and racialized economic segregation explained over one-third of non-fatal shootings (approximately 650 shootings) in sustained disadvantage tracts. Conclusion These findings suggest that the intersection of historical and contemporary structural racism is a fundamental cause of firearm violence inequities in Baltimore. Intersectionality can advance injury prevention research and practice by (1) serving as an analytical tool to expose inequities in injury-related outcomes and (2) informing the development and implementation of injury prevention interventions and policies that prioritise health equity and racial justice.

Effect of Abandoned Housing Interventions on Gun Violence, Perceptions of Safety, and Substance Use in Black Neighborhoods: A Citywide Cluster Randomized Trial

Importance

Structural racism has resulted in long-standing disinvestment and dilapidated environmental conditions in Black neighborhoods. Abandoned houses signal neglect and foster stress and fear for residents, weakening social ties and potentially contributing to poor health and safety.

Objective

To determine whether abandoned house remediation reduces gun violence and substance-related outcomes and increases perceptions of safety and use of outdoor space.

Design, Setting, and Participants

This cluster randomized trial was conducted from January 2017 to August 2020, with interventions occurring between August 2018 and March 2019. The study included abandoned houses across Philadelphia, Pennsylvania, and surveys completed by participants living nearby preintervention and postintervention. Data analysis was performed from March 2021 to September 2022.

Interventions

The study consisted of 3 arms: (1) full remediation (installing working windows and doors, cleaning trash, weeding); (2) trash cleanup and weeding only; and (3) a no-intervention control.

Main Outcomes and Measures

Difference-in-differences mixed-effects regression models were used to estimate the effect of the interventions on multiple primary outcomes: gun violence (weapons violations, gun assaults, and shootings), illegal substance trafficking and use, public drunkenness, and perceptions of safety and time outside for nearby residents.

Results

A master list of 3265 abandoned houses was randomly sorted. From the top of this randomly sorted list, a total of 63 clusters containing 258 abandoned houses were formed and then randomly allocated to 3 study arms. Of the 301 participants interviewed during the preintervention period, 172 (57.1%) were interviewed during the postintervention period and were included in this analysis; participants were predominantly Black, and most were employed. Study neighborhoods were predominantly Black with high percentages of low-income households. Gun violence outcomes increased in all study arms, but increased the least in the full remediation arm. The full housing remediation arm, compared with the control condition, showed reduced weapons violations by -8.43% (95% CI, -14.68% to -1.19%), reduced gun assaults by -13.12% (95% CI, -21.32% to -3.01%), and reduced shootings by a nonsignificant -6.96% (95% CI, -15.32% to 3.03%). The trash cleanup arm was not associated with a significant differential change in any gun violence outcome. Instances of illegal substance trafficking and use and public drunkenness outcomes were not significantly affected by the housing remediation or trash cleanup treatment. Perceptions of neighborhood safety and time spent outside were unaffected by the intervention. The study arms did differ in a baseline characteristic and some preintervention trends, which raises questions regarding other potential nonmeasured differences between study arms that could have influenced estimates. No evidence of displacement of gun violence outcomes was found.

Conclusions and Relevance

In this cluster randomized controlled trial among low-income, predominantly Black neighborhoods, inexpensive, straightforward abandoned housing remediation was directly linked to significant relative reductions in weapons violations and gun assaults, and suggestive reductions in shootings.

Trial Registration

isrctn.org Identifier: ISRCTN14973997.

Factors Affecting the Prevention of Violence Questionnaire in Female Students: Design and Psychometric Properties

Background: There are scarce Iranian and worldwide research articles on designing the questionnaires of the factors influencing violence prevention. This indicates the need to design a specific questionnaire on factors affecting violence prevention and examine its psychometric properties before using it. Objectives: The present study aimed to design and evaluate psychometric properties (the reliability and validity) of factors affecting violence prevention questionnaire in female students. Methods: The current psychometric research was conducted in Rudsar, Iran during 2017 - 2018. In the first part (designing the questionnaire), data were collected from 50 participants by purposive sampling and using Waltz methodology. In the second part (evaluating psychometric properties of the questionnaire). The validity of the questionnaire was assessed using face, content, and structural validities. Reliability was evaluated using Cronbach’s alpha and intra-class correlation coefficient, and SPSS 20 software was used for data analysis. Results: The initial version of the questionnaire was designed with 212 items. After confirming the validity and reliability, the second version of the questionnaire was extracted with 56 items with an impact score of > 1.5 for all 56 items, the mean CVI = 0.94, and the mean CVR = 0.88. Concerning construct validity, 48 items were extracted with a predictive power of 38.16 based on exploratory factor analysis. The Internal Consistency of Reliability (α = 0.88; ICC = 0.92) was also confirmed. Conclusions: In general, the questionnaire represented acceptable reliability and validity for use in the student population. Therefore, the present questionnaire can predict the risk of violence against female adolescents.

Social determinants of mental health and adolescent anxiety and depression: Findings from the 2018 to 2019 National Survey of Children's Health

BACKGROUND

There is a current crisis in children's mental health. Defining social determinants of mental health (SDMH) facilitates investigations of social impact on mental health.

AIMS

To examine associations between nine SDMH and adolescent depression and anxiety in a U.S. nationally representative sample.

METHODS

Poor access to health care, caregiver underemployment, food insecurity, poorly built environment, housing insecurity, household dysfunction adverse childhood experiences (ACEs), racism, caregiver poor education, and poverty/income inequality were assessed from the 2018 to 2019 National Survey of Children's Health (NSCH) (N = 24,817).

RESULTS

The likelihood of reporting adolescent depression and/or anxiety was assessed for each SDMH using multinomial logistic regressions. All SDMH, besides caregiver underemployment, were associated with increased odds of reporting adolescent anxiety, depression, or anxiety and depression. Only household dysfunction ACEs and racism had statistically significant associations for all three mental health outcomes.

CONCLUSIONS

Interventions targeting ACEs and racism may be more impactful in mitigating mental health challenges associated with SDMH during adolescence. The NSCH may provide an important public health tool to investigate SDMH in children.

Trends in Hospital Care for Intentional Assault Gunshot Wounds Among Residents of Cook County, Illinois, 2018-2020

Objectives. To examine gun violence with respect to hospital visits for treatment of intentional assault gunshot wounds (IGWs). Methods. IGW-coded visits among residents of Cook County, Illinois, were matched to census zip code tabulation areas (ZCTAs) to map changes in IGW visit frequencies between 2018 and 2020. Patient characteristics were compared across years, and Poisson regression models for the likelihood of an inpatient admission or in-hospital death were estimated. Results. Over the study period, Cook County residents made 7122 IGW-coded hospital visits to 89 Illinois hospitals, resulting in $342 million in charges and 24 894 hospital days. The number of visits almost doubled between 2018 and 2020, from 1553 to 3031; 6 ZCTAs had increases of more than 60 visits. Approximately one third of patients with a visit were admitted, and 6.5% died. Conclusions. Hospital statistics do not include the full toll of nonfatal gun injuries or the costs of related community-level trauma. The health care system remains crucial in implementing epidemiological approaches to violence prevention. Addressing the national spike in shootings will require large investments in community economic development and a professional public safety workforce. (Am J Public Health. 2022;112(5):795-802. https://doi.org/10.2105/AJPH.2022.306747).

The Index of Concentration at the Extremes (ICE) and Pregnancy-Associated Mortality in Louisiana, 2016-2017

OBJECTIVES

Social and contextual factors underlying the continually disproportionate and burdensome risk of adverse health outcomes experienced by Black women in the US are underexplored in the literature. The aim of this study was to use an index based on area-level population distributions of race and income to predict risk of death during pregnancy and up to 1 year postpartum among women in Louisiana.

METHODS

Using vital records data provided by the Louisiana Department of Health 2016-2017 (n = 125,537), a modified Poisson model was fit with generalized estimating equations to examine the risk of pregnancy-associated death associated with census tract-level values of the Index of Concentration at the Extremes (ICE)-grouped by tertile-while adjusting for both individual and tract-level confounders.

RESULTS

Analyses resulted in an estimated 1.73 (95% CI 1.02-2.93) times increased risk for pregnancy-associated death for those in areas which were characterized by concentrated deprivation (high proportions of Black and low-income residents) relative to those in areas of concentrated privilege (high proportions of white and high-income residents), independent of other factors.

CONCLUSIONS FOR PRACTICE

In addition to continuing to consider the deeply entrenched racism and economic inequality that shape the experience of pregnancy-associated death, we must also consider their synergistic effect on access to resources, maternal population health, and health inequities.

Examining Time-Variant Spatial Dependence of Urban Places and Shootings

Place-based interventions are increasingly implemented to address firearm violence. While research on the social determinants of health and criminological theories suggest that the built environment significantly influences health outcomes and the spatial distribution of crime, little is known about the attraction between urban places and shootings. The present study adds to the literature on firearm violence and micro-place research by exploring the spatial dependence in a Midwest metropolitan area between shootings and bus stops, vacant properties, alcohol outlets, and other locations that have been theoretically or empirically linked to firearm violence. The G-function and Cross-K function are used to characterize the univariate clustering of shootings and bivariate attraction with other locations, respectively. Bus stops, blighted vacant properties, alcohol outlets, and businesses/residential locations participating in a public-private-community initiative to reduce crime exhibited significant locational dependence with shootings at short distances. Attraction between on-premises alcohol outlets and shootings was observed only during the night. No attraction was found between schools and shootings. The findings reaffirm the importance of place-based research-especially at the micro-place level-and suggest that certain urban places may be appropriate targets for interventions that modify existing physical and/or social structures.

Neighborhood Conditions and Recurrent Emergency Department Utilization by Children in the United States

OBJECTIVE

To determine the associations of social and physical neighborhood conditions with recurrent emergency department (ED) utilization by children in the US.

STUDY DESIGN

This cross-sectional study was conducted with the National Survey of Children's Health from 2016 to 2018 to determine the associations of neighborhood characteristics of cohesion, safety, amenities, and detractors with the proportions of children aged 1-17 years with recurrent ED utilization, defined as 2 or more ED visits during the past 12 months. A multivariable regression model was used to determine the independent association of each neighborhood characteristic with recurrent ED utilization controlling for individual-level characteristics.

RESULTS

In this study of 98 711 children weighted to a population of 70 million nationally, children had significantly greater rates of recurrent ED utilization if they lived in neighborhoods that were not cohesive, were not safe, or had detractors present (all P < .001). With adjustment for individual-level covariates and the other neighborhood characteristics, only neighborhood detractors were independently associated with recurrent ED utilization (1 detractor: aOR 1.32, 95% CI 1.03-1.68; 2 or 3 detractors: aOR 1.37, 95% CI 1.04-1.81).

CONCLUSIONS

Among neighborhood characteristics, the presence of physical detractors such as rundown housing and vandalism was most strongly associated with recurrent ED utilization by children. Negative attributes of the built environment may be a potential target for neighborhood-level, place-based interventions to alleviate disparities in child healthcare utilization.

Addressing Key Gaps in Existing Longitudinal Research and Establishing a Pathway Forward for Firearm Violence Prevention Research

The main purpose of this article and this special section is to encourage greater attention to the key gaps that exist in our understanding of the epidemiology of adolescent firearm violence and to provide a pathway forward for future longitudinal research that will inform prevention efforts. This increased attention is especially salient given: (a) firearms are the leading cause of death for adolescents and emerging adults in the United States, with the majority of these deaths due to interpersonal violence; (b) significant health and social disparities with regards to the populations that are most affected by interpersonal firearm violence have been documented; and, (c) limitations in federal research funding during the past 30 years have created a deficit of knowledge about key risk and protective factors necessary to inform evidence-based prevention efforts. We discuss the implications of the articles in this special edition for existing and novel prevention programs. We also identify key considerations for future epidemiological research, including the need for a greater focus on collecting longitudinal data among nationally representative samples enriched with subgroups of at-risk youth, the need to examine the role of protective factors and mediating variables within existing and novel theoretical models of firearm risk behaviors, the need to examine key factors across all levels of the socio-ecological model, and the need to incorporate novel and innovative research designs, methods and analyses.

Building community resilience to prevent and mitigate community impact of gun violence: conceptual framework and intervention design

INTRODUCTION

The USA has the highest rate of community gun violence of any developed democracy. There is an urgent need to develop feasible, scalable and community-led interventions that mitigate incident gun violence and its associated health impacts. Our community-academic research team received National Institutes of Health funding to design a community-led intervention that mitigates the health impacts of living in communities with high rates of gun violence.

METHODS AND ANALYSIS

We adapted 'Building Resilience to Disasters', a conceptual framework for natural disaster preparedness, to guide actions of multiple sectors and the broader community to respond to the man-made disaster of gun violence. Using this framework, we will identify existing community assets to be building blocks of future community-led interventions. To identify existing community assets, we will conduct social network and spatial analyses of the gun violence episodes in our community and use these analyses to identify people and neighbourhood blocks that have been successful in avoiding gun violence. We will conduct qualitative interviews among a sample of individuals in the network that have avoided violence (n=45) and those living or working on blocks that have not been a location of victimisation (n=45) to identify existing assets. Lastly, we will use community-based system dynamics modelling processes to create a computer simulation of the community-level contributors and mitigators of the effects of gun violence that incorporates local population-based based data for calibration. We will engage a multistakeholder group and use themes from the qualitative interviews and the computer simulation to identify feasible community-led interventions.

ETHICS AND DISSEMINATION

The Human Investigation Committee at Yale University School of Medicine (#2000022360) granted study approval. We will disseminate study findings through peer-reviewed publications and academic and community presentations. The qualitative interview guides, system dynamics model and group model building scripts will be shared broadly.

The association between blighted property remediation and domestic crime by alcohol availability

There is increasing evidence that place-based interventions reduce crime and interpersonal violence in urban settings. However, evidence concerning the impacts of these neighborhood interventions on domestic crime (crime between intimate partners, family, or household members) is inconclusive. We used data from a New Orleans, Louisiana, place-based blighted property remediation intervention to test the hypothesis that the intervention was associated with changes in domestic crime. Because there is evidence that alcohol availability is related to domestic crime, we also assessed whether this association was moderated by alcohol outlet density. We assessed overall associations using a difference-in-difference approach and assessed moderation using a triple-difference approach. The analytic sample consisted of 204 remediated lots and 612 non-remediated matched control lots over 84 months (2011-2017), for a total of 68,544 lot-months. In difference-in-differences analyses, the place-based intervention was associated with additional domestic crime incidence (β = 0.311, 95% CI: 0.016, 0.605; p = 0.039). In triple-difference analyses, on-premise bar density modified this association (β = -0.119, 95%CI: -0.147, -0.092; p < 0.001): in areas with higher bar density, increases in domestic crime were lower near remediated lots compared with control lots. Place-based interventions to reduce blighted properties may have contributed to fewer domestic crime incidents in areas with more bars.