Hospitalizations for injury in New Zealand: prior injury as a risk factor for assaultive injury

Using intent to get ahead of pediatric cranial firearm injuries

OBJECTIVE

Pediatric firearm injuries (PFI) are a public health crisis. Little is known about how injury intent may influence the outcome of pediatric cranial firearm injuries (PCFI). The current study sought to compare demographics and outcomes of PCFI based on intent of injury.

METHODS

The Nationwide Readmission Database (2010-2014) was queried to identify patients <18 years old with PCFI. Demographics and outcomes were compared by injury intent (assault, self-inflicted, unintentional), and results were weighted for national estimates to create a population-based cohort study.

RESULTS

There were 1,365 cases of PCFI identified for an incidence of 11% of all PFI. The majority of patients were male (83 %), >13 years (81 %), and had an injury severity score >15 (79 %). Overall PCFI mortality was 43 %, compared to 6 % for all PFI. Assault was the most common intent (51 %), followed by self-inflicted (25 %), and unintentional (24 %). Assault was more likely to occur in patients from low-income households (61 % vs. 31 % self-inflicted vs. 42 % unintentional), p < 0.001. Unintentional injuries occurred in those <13 years old (40 % vs. 12 % assault vs. 16 % self-inflicted) and more often resulted in facial fracture (19 % vs. 11 % vs. 13 %), all p < 0.001. Readmission rate within the year was 21 %. The majority (56 %) of readmissions were unplanned, and the rate was highest for assault (77 % vs. <1 % self-inflicted vs. 44 % unintentional, p < 0.001).

CONCLUSIONS

PCFI are associated with significant morbidity and mortality. Demographics and outcomes vary by intent of injury; knowledge of these patterns can direct future interventions to reduce injuries and impact outcomes.

Feasibility of linking violent death decedents to prior-month emergency department visits in North Carolina, 2019-2020

OBJECTIVE

Linking data between violent death decedents and other sources can provide valuable insight, highlighting opportunities for prevention of violent injury. This study investigated the feasibility of linking North Carolina Violent Death Reporting System (NC-VDRS) records with North Carolina Disease Event Tracking and Epidemiologic Collection Tool (NC DETECT) emergency department (ED) visit data to identify prior-month ED visits among this population.

METHODS

NC-VDRS death records from 2019 through 2020 were linked to NC DETECT ED visit data from December 2018 through 2020 using a probabilistic linkage approach. Linkage variables included date of birth, age, sex, zip code and county of residence, date of event (death/ED visit) and mechanism of injury. Potential linkable ED visits were filtered to those occurring in the month prior to death and manually reviewed for validity. Linked records were compared with the NC-VDRS study population to assess linkage performance and generalisability.

RESULTS

Among the 4768 violent deaths identified, we linked 1340 NC-VDRS records to at least one ED visit in the month prior to death. A higher proportion of decedents dying in medical facilities (ED/outpatient, hospital inpatient, hospice or nursing/long-term care facility) linked to a prior-month visit (80%) relative to those dying in other locations (12%). When stratified by place of death, linked decedents demographically resembled the overall NC-VDRS study population.

CONCLUSIONS

Though resource intensive, an NC-VDRS-to-NC DETECT linkage was successful in identifying prior-month ED visits among violent death decedents. This linkage should be leveraged to further analyse ED utilisation prior to violent death, expanding the knowledge base surrounding prevention opportunities for violent injuries.

Repeat assault injuries: A scoping review of the incidence and associated risk factors

OBJECTIVE

Individuals who experience assault are at high risk of being re-assaulted. Our objective was to identify reported incidences of re-assault and associated risk factors to better inform prevention strategies.

METHODS

We conducted a scoping review and searched databases (MEDLINE, PsychINFO, CINAHL, Cochrane Reviews, and Scopus) and grey literature. We performed abstract and full-text screening, and abstracted incidence of re-assault and information related to age, sex, socioeconomic status, mental illness, and incarceration.

RESULTS

We included 32 articles. Studies varied based on setting where index assaults were captured (n=18 inpatient only, n=13 emergency department or inpatient, n=1 other). Reported incidences ranged from 0.8% over one month to 62% through the lifetime. Important risk factors identified include young age, low socioeconomic status, racialized groups, history of mental illness or substance use disorder, and history of incarceration.

CONCLUSIONS

Rates of re-assault are high and early intervention is necessary for prevention. We identified notable risk factors that require further in-depth analysis, including sex, gender and age-stratified analyses.

POLICY IMPLICATIONS

Key risk factors identified should inform timely and targeted intervention strategies for prevention.

Prospective Outcomes of Injury Study 10 Years on (POIS-10): An Observational Cohort Study

Injury is a leading cause of disability and is costly. This prospective cohort study extension aims to improve disability, health, and wellbeing outcomes for injured New Zealanders, including for Māori. We will identify predictors and modifiable risk factors of long-term outcomes (positive and negative), and develop an Injury Early Care Tool (INJECT) to inform the implementation of effective interventions to improve outcomes. In the Prospective Outcomes of Injury Study (POIS), 2856 people participated following an injury (occurring between 2007 and 2009) registered with New Zealand's no-fault accident compensation scheme (ACC). POIS-10 will invite 2121 people (including 358 Māori) who completed a 24-month POIS interview and agreed to follow-up, anticipating 75% participation (n = 1591). Interviews will collect sociodemographic characteristics, life events, comorbidities, and new injuries since participants' 24-month interview, as well as key disability, health, and wellbeing outcomes 12 years post-injury. Injury-related data will be collected from ACC and hospitalisation records 12 years post-injury. Regression models for the main outcomes will examine the direct effects of predictor variables after adjustment for a wide range of confounders. POIS-10 is enhanced by our partnership with ACC, and expert advisors and will benefit injured people, including Māori, through increased understanding of mechanisms and interventions to improve long-term post-injury outcomes.

Are ED-based violence intervention programmes effective in reducing revictimisation and perpetration in victims of violence? A systematic review

OBJECTIVES

Community violence bears significant human and economic costs. Furthermore, victims requiring ED treatment are at a greater risk of violent reinjury, arrest due to perpetration and violent death. We aimed to evaluate the effectiveness of ED-based violence intervention programmes (EVIPs), which aim to reduce future violence involvement in these individuals.

METHODS

We performed a systematic literature review searching MEDLINE, Embase, Cumulative Index of Nursing and Allied Health Literature, PsycINFO, The Cochrane Library and Web of Science, in addition to hand-searching. Randomised controlled trials (RCTs) were included if they enrolled victims of community violence requiring ED treatment, evaluated interventions taking place in the ED and used violent revictimisation, arrests or intermediate outcome measures as endpoints. We included trials that had a Jadad score of 2 or above.

RESULTS

297 records were identified, and 13 articles were included in our final qualitative analysis, representing 10 RCTs and 9 different EVIPs. The risk of selection bias was low; the risk of performance, detection and attrition bias was moderate. 9 out of 13 papers reported statistically significant improvements in one or more outcome measures related to violence, including violent reinjury and arrests due to violence perpetration.

CONCLUSION

The results of this literature review show that EVIPs may be capable of reducing violent reinjury and arrests due to violence perpetration. Larger RCTs, taking place in different regions, in different age groups and using different techniques, are justified to determine which conditions may be required for success and whether EVIPs are generalisable.

Time after time: individuals with multiple fractures and injury recidivists in long eighteenth-century (c. 1666-1837) London

Investigating injury recidivism and individuals with multiple injuries is an area of growing interest in bioarchaeology. Differentiating between whether an individual sustained multiple injuries, represented by antemortem healed fractures, in one incident or in multiple incidents over the life course, is a major challenge. This research analyzed the skeletal remains of 721 adults (402 males, 319 females) from five post-medieval cemeteries from London, UK, known to include working class individuals for evidence of skeletal trauma - fractures, myositis ossificans, subluxations/dislocations, blunt force trauma, and sharp force trauma. A total of 164 individuals had more than two fractures; males were significantly more likely to have multiple (2+) fractures than females. An investigation of fracture recidivism incorporating a relative timeline of fracture events was possible because 14 individuals (12 males, two females) were identified as injury recidivists, meaning they had a combination of antemortem healed, antemortem healing, and/or perimortem fractures. This paper examines the distribution and relative timing of these fractures, incorporating contemporary clinical as well as social and historical context, noting that the majority of the fractures were likely to be caused by accidental mechanisms.

Firearm Violence: A Global Priority for Nursing Science

PURPOSE

This purpose of this article is to frame firearm violence as a health and public health problem, to illustrate the magnitude of the problem, to examine factors that increase the risk to be injured by a firearm, or conversely, that confer protection, and to identify relevant priority areas for nursing science.

ORGANIZING CONSTRUCT

Firearm violence results in physical and psychological injuries and is a global health priority. Firearm violence is categorized as intentional (interpersonal and self-inflicted) and unintentional (interpersonal and self-inflicted) and accounts for an estimated 196,000 to 220,000 nonconflict deaths annually.

METHODS

We reviewed the theoretical and scientific literature to analyze the magnitude and geographic distribution of firearm violence, the factors associated with firearm injury, the consequences of firearm violence, and areas where nursing science can make an impact on prevention, outcomes, and recovery.

FINDINGS

Firearm violence is a significant public health problem that affects the health of individuals, families, and communities. The burdens and contributors to firearm violence vary worldwide, making it important to understand the local context of this global phenomenon. Relevant areas of inquiry span primary prevention focusing on individual and environmental risk factors; and focus on managing the physical and psychological consequences postinjury; and mitigating long-term consequences of firearm violence.

CONCLUSIONS

Reducing the global burden of firearm violence and improving the health and safety of individuals, families, and communities provide compelling reasons to integrate this area into nursing science.

CLINICAL RELEVANCE

The goals of nursing are to keep people healthy and safe and to help return those injured to their optimal levels of health and well-being. Understanding the factors that come together to injure people with a firearm in various physical, social, economic, and cultural environments positions nurses to both extend the dialogue beyond pro-gun versus anti-gun and to design and carry out rigorous studies to reduce firearm violence.

Emergency Department Utilization Among Assault-Injured Youth: Implications for Youth Violence Screening

OBJECTIVE

Assault is a common cause of youth emergency department (ED) visits. Little is known about prior ED utilization patterns among assault-injured youth. This study's objectives were to determine whether, and how, prior ED visit history distinguishes assault-injured youth from unintentionally injured youth.

METHODS

A 5-year retrospective, case-control study was conducted using a hospital billing database. Youth ages 13 to 24 years presenting to the ED of an urban level 1 trauma center in 2011 with an E-code of physical assault- or weapon-related injuries were compared 1:1 to randomly assigned, age- and sex-matched controls with an E-code corresponding to unintentional injury. Bivariate, t test, Wilcoxon rank sum tests, and conditional logistic regression were performed to determine how previous ED visits distinguished assault-injured youth from unintentionally injured youth.

RESULTS

In 2011, 964 patients presented with assault-related injuries. Over the previous 5 years, assault-injured youth had a median of 1 prior ED visit (interquartile range, 0-3); unintentionally injured youth had a median of zero prior ED visits (interquartile range, 0-2). Assault-injured youth had significantly higher median numbers of previous psychiatric and assault-related ED visits when compared to unintentionally injured youth. A youth with 1 previous psychiatric ED visit had a 4-fold increased odds (adjusted odds ratio [AOR], 4.05; 95% confidence interval, 2.41-6.83) of having a 2011 assault-related ED visit compared to unintentionally injured youth.

CONCLUSIONS

Assault-injured youth are more likely to have had prior ED use particularly for psychiatric illnesses and assault-related injury. Targeted youth violence screening may be appropriate for such patients.

Self-harm and violent criminality among young people who experienced trauma-related hospital admission during childhood: a Danish national cohort study

Background

Development of a better understanding of subsequent pathways for individuals who experienced trauma during childhood might usefully inform clinicians and public health professionals regarding the causes of self-harm and interpersonal violence. We aimed to examine these risks during late adolescence and early adulthood among people admitted to hospital following injuries or poisonings during their childhood.

Methods

This national cohort study included Danish people born between Jan 1, 1977, and Dec 31, 1997, and was linked to the National Patient Register and Psychiatric Central Research Register to identify all people exposed to hospital admissions for injuries or poisonings due to self-harm, interpersonal violence, or accidents before their 15th birthday. Linkage to these two registers and to the National Crime Register enabled ascertainment of self-harm and violent offending, respectively, as adverse outcomes at ages 15–35 years. Sex-specific incidence rate ratios (IRRs; relative risks) and cumulative incidence percentage values (absolute risks) were estimated. The confounding influence of parental socioeconomic status was also explored.

Findings

1 087 672 Danish people were included in this study. The prevalence of any trauma-related hospital admission was 10% (105 753 per 1 087 672; males: 64 454 [11%]; females: 44 299 [8%]) and for both sexes, accident was by far the most prevalent of the categories assessed (males: 59 011 [11%]; females: 40 756 [8%]). Similar patterns of increased risk for self-harm and violent criminality were observed in both sexes, although the IRRs were consistently and significantly larger in women (self-harm: IRR 1·94 [95% CI 1·85–2·02]; violent criminality: 2·16 [1·97–2·36]) than in men (self-harm: 1·61 [1·53–1·69]; violent criminality: 1·58 [1·53–1·63]). Confounding by parental socioeconomic status explained little of the increased risks observed. For young adult men, the highest absolute risk observed was for violent offending among individuals admitted to hospital for interpersonal violence injury during childhood (cumulative incidence 25·0% [95% CI 21·2–28·9]). For young adult women, absolute risk was highest for repeat self-harm among those admitted to hospital following self-harm during childhood (cumulative incidence 21·4% [95% CI 19·8–23·1]). More frequent trauma-related hospital admissions in childhood, and being admitted multiple times for more than one reason, conferred substantial risk increases among young people, with especially steep gradients of this nature observed among women.

Interpretation

Trauma-related hospital admission early in life could be a useful marker for childhood distress that subsequently predicts internalised and externalised destructive behaviours among youths and young adults and might provide a timely opportunity for initiating family-oriented interventions.

Funding

European Research Council.

Effectiveness of the YourCall™ text message intervention to reduce harmful drinking in patients discharged from trauma wards: protocol for a randomised controlled trial

BACKGROUND

Behavioural brief interventions (BI) can support people to reduce harmful drinking but multiple barriers impede the delivery and equitable access to these. To address this challenge, we developed YourCall™, a novel short message service (SMS) text message intervention incorporating BI principles. This protocol describes a trial evaluating the effectiveness of YourCall™ (compared to usual care) in reducing hazardous drinking and alcohol related harm among injured adults who received in-patient care.

METHODS/DESIGN

Participants recruited to this single-blind randomised controlled trial comprised patients aged 16-69 years in three trauma-admitting hospitals in Auckland, New Zealand. Those who screened positive for moderately hazardous drinking were randomly assigned by computer to usual care (control group) or the intervention. The latter comprised 16 informational and motivational text messages delivered using an automated system over the four weeks following discharge. The primary outcome is the difference in mean AUDIT-C score between the intervention and control groups at 3 months, with the maintenance of the effect examined at 6 and 12 months follow-up. Secondary outcomes comprised the health and social impacts of heavy drinking ascertained through a web-survey at 12 months, and further injuries identified through probabilistic linkage to national databases on accident insurance, hospital discharges, and mortality. Research staff evaluating outcomes were blinded to allocation. Intention-to-treat analyses will include assessment of interactions based on ethnicity (Māori compared with non-Māori).

DISCUSSION

If found to be effective, this mobile health strategy has the potential to overcome current barriers to implementing equitably accessible interventions that can reduce harmful drinking.

TRIAL REGISTRATION

Universal Trial Number (UTN) U1111-1134-0028. ACTRN12612001220853 . Submitted 8 November 2012 (date of enrolment of first participant); Version 1 registration confirmed 19 November 2012. Retrospectively registered.

Subsequent Injury Study (SInS): Improving outcomes for injured New Zealanders

BACKGROUND

Subsequent injury (SI) is a major contributor to disability and costs for individuals and society.

AIM

To identify modifiable risk factors predictive of SI and SI health and disability outcomes and costs.

OBJECTIVES

To (1) describe the nature of SIs reported to New Zealand's no-fault injury insurer (the Accident Compensation Corporation (ACC)); (2) identify characteristics of people underaccessing ACC for SI; (3) determine factors predicting or protecting against SI; and (4) investigate outcomes for individuals, and costs to society, in relation to SI.

DESIGN

Prospective cohort study.

METHODS

Previously collected data will be linked including data from interviews undertaken as part of the earlier Prospective Outcomes of Injury Study (POIS), ACC electronic data and national hospitalisation data about SI. POIS participants (N=2856, including 566 Māori) were recruited via ACC's injury register following an injury serious enough to warrant compensation entitlements. We will examine SI over the following 24 months for these participants using descriptive and inferential statistics including multivariable generalised linear models and Cox's proportional hazards regression.

DISCUSSION

Subsequent Injury Study (SInS) will deliver information about the risks, protective factors and outcomes related to SI for New Zealanders. As a result of sourcing injury data from New Zealand's 'all injury' insurer ACC, SInS includes people who have been hospitalised and not hospitalised for injury. Consequently, SInS will provide insights that are novel internationally as other studies are usually confined to examining trauma registries, specific injuries or injured workers who are covered by a workplace insurer rather than a 'real-world' injury population.

Improving mental health and lifestyle outcomes in a hospital emergency department based youth violence intervention

Purpose

Current government policy aims to tackle youth anti-social behaviour and its psychological and social impacts. Given an increased likelihood that young victims of crime are also likely to engage in aggressive or deviant behaviour and to have psychological and social difficulties, interventions are needed which access vulnerable youth with adverse lifestyles to increase well-being and reduce offending. The current project utilised a hospital emergency department (ED) as an appropriate location to identify and interact with youth victims of violent crime; to support key lifestyle risk and mental health difficulties; and build resilience. The purpose of this paper is to use a youth work paradigm, to target vulnerable youth in a health setting at a crisis point where intervention may have a higher chance of uptake.

Design/methodology/approach

The study applied a quasi-experimental, longitudinal design. Using the strengths and difficulties questionnaire and the “What Do You Think” component of the ASSET risk assessment, data were collected from 120 youth aged 12-20, at baseline with 66 youth who successfully completed the programme with assessments at baseline and follow-up, at an average of 14 weeks.

Findings

There was significant reduction in both psychological problems and lifestyle risk at follow-up.

Research limitations/implications

These findings support the government initiative to intervene in youth violence in healthcare settings. Challenges revolve around increasing participation and greater formalisation of the intervention.

Originality/value

The youth work led violence intervention in the ED is successfully tackling psychological problems and lifestyle risk following injury.

Firearm-related hospitalization and risk for subsequent violent injury, death, or crime perpetration: a cohort study

BACKGROUND

Risk for violent victimization or crime perpetration after firearm-related hospitalization (FRH) must be determined to inform the need for future interventions.

OBJECTIVE

To compare the risk for subsequent violent injury, death, or crime perpetration among patients with an FRH, those hospitalized for noninjury reasons, and the general population.

DESIGN

Retrospective cohort study.

SETTING

All hospitals in Washington.

PATIENTS

Patients with an FRH and a random sample of those with a non-injury-related hospitalization in 2006 to 2007 (index hospitalization).

MEASUREMENTS

Primary outcomes included subsequent FRH, firearm-related death, and the combined outcome of firearm- or violence-related arrest ascertained through 2011.

RESULTS

Among patients with an index FRH (n = 613), rates of subsequent FRH, firearm-related death, and firearm- or violence-related arrest were 329 (95% CI, 142 to 649), 100 (CI, 21 to 293), and 4221 (CI, 3352 to 5246) per 100 000 person-years, respectively. Compared with the general population, standardized incidence ratios among patients with an index FRH were 30.1 (CI, 14.9 to 61.0) for a subsequent FRH and 7.3 (CI, 2.4 to 22.9) for firearm-related death. In survival analyses that accounted for competing risks, patients with an index FRH were at greater risk for subsequent FRH (subhazard ratio [sHR], 21.2 [CI, 7.0 to 64.0]), firearm-related death (sHR, 4.3 [CI, 1.3 to 14.1]), and firearm- or violence-related arrest (sHR, 2.7 [CI, 2.0 to 3.5]) than those with a non-injury-related index hospitalization.

LIMITATION

Lack of information on whether patients continued to reside in Washington during follow-up may have introduced outcome misclassification.

CONCLUSION

Hospitalization for a firearm-related injury is associated with a heightened risk for subsequent violent victimization or crime perpetration. Further research at the intersection of clinical care, the criminal justice system, and public health to evaluate the effectiveness of interventions delivered to survivors of firearm-related injury is warranted.

PRIMARY FUNDING SOURCE

Seattle City Council and University of Washington Royalty Research Fund.

Hospital-centered violence intervention programs: a cost-effectiveness analysis

BACKGROUND

Hospital-centered violence intervention programs (HVIPs) reduce violent injury recidivism. However, dedicated cost analyses of such programs have not yet been published. We hypothesized that the HVIP at our urban trauma center is a cost-effective means for reducing violent injury recidivism.

METHODS

We conducted a cost-utility analysis using a state-transition (Markov) decision model, comparing participation in our HVIP with standard risk reduction for patients injured because of firearm violence. Model inputs were derived from our trauma registry and published literature.

RESULTS

The 1-year recidivism rate for participants in our HVIP was 2.5%, compared with 4% for those receiving standard risk reduction resources. Total per-person costs of each violence prevention arm were similar: $3,574 for our HVIP and $3,515 for standard referrals. The incremental cost effectiveness ratio for our HVIP was $2,941.

CONCLUSION

Our HVIP is a cost-effective means of preventing recurrent episodes of violent injury in patients hurt by firearms.

Cost-benefit analysis simulation of a hospital-based violence intervention program

BACKGROUND

Violent injury is a major cause of disability, premature mortality, and health disparities worldwide. Hospital-based violence intervention programs (HVIPs) show promise in preventing violent injury. Little is known, however, about how the impact of HVIPs may translate into monetary figures.

PURPOSE

To conduct a cost-benefit analysis simulation to estimate the savings an HVIP might produce in healthcare, criminal justice, and lost productivity costs over 5 years in a hypothetical population of 180 violently injured patients, 90 of whom received HVIP intervention and 90 of whom did not.

METHODS

Primary data from 2012, analyzed in 2013, on annual HVIP costs/number of clients served and secondary data sources were used to estimate the cost, number, and type of violent reinjury incidents (fatal/nonfatal, resulting in hospitalization/not resulting in hospitalization) and violent perpetration incidents (aggravated assault/homicide) that this population might experience over 5 years. Four different models were constructed and three different estimates of HVIP effect size (20%, 25%, and 30%) were used to calculate a range of estimates for HVIP net savings and cost-benefit ratios from different payer perspectives. All benefits were discounted at 5% to adjust for their net present value.

RESULTS

Estimates of HVIP cost savings at the base effect estimate of 25% ranged from $82,765 (narrowest model) to $4,055,873 (broadest model).

CONCLUSIONS

HVIPs are likely to produce cost savings. This study provides a systematic framework for the economic evaluation of HVIPs and estimates of HVIP cost savings and cost-benefit ratios that may be useful in informing public policy decisions.

Violent reinjury and mortality among youth seeking emergency department care for assault-related injury: a 2-year prospective cohort study

IMPORTANCE

Violence is a leading cause of morbidity and mortality among youth, with more than 700000 emergency department (ED) visits annually for assault-related injuries. The risk for violent reinjury among high-risk, assault-injured youth is poorly understood.

OBJECTIVE

To compare recidivism for violent injury and mortality outcomes among drug-using, assault-injured youth (AI group) and drug-using, non-assault-injured control participants (non-AI group) presenting to an urban ED for care.

DESIGN, SETTING, AND PARTICIPANTS

Participants were enrolled in a prospective cohort study from December 2, 2009, through September 30, 2011, at an urban level I ED and followed up for 24 months. We administered validated measures of violence and substance use and mental health diagnostic interviews and reviewed medical records at baseline and at each point of follow-up (6, 12, 18, and 24 months).

EXPOSURE

Follow-up over 24 months.

MAIN OUTCOMES AND MEASURES

Use of ED services for assault or mortality measured from medical record abstraction supplemented with self-report.

RESULTS

We followed 349 AI and 250 non-AI youth for 24 months. Youth in the AI group had almost twice the risk for a violent injury requiring ED care within 2 years compared with the non-AI group (36.7% vs 22.4%; relative risk [RR], 1.65 [95% CI, 1.25-2.14]; P<.001). Two-year mortality was 0.8%. Poisson regression modeling identified female sex (RR, 1.30 [95% CI, 1.02-1.65]), assault-related injury (RR, 1.57 [95% CI, 1.19-2.04), diagnosis of a drug use disorder (RR, 1.29 [95% CI, 1.01-1.65]), and posttraumatic stress disorder (RR, 1.47 [95% CI, 1.09-1.97]) at the index visit as predictive of ED recidivism or death within 24 months. Parametric survival models demonstrated that assault-related injury (P<.001), diagnosis of posttraumatic stress disorder (P=.008), and diagnosis of a drug use disorder (P= .03) significantly shortened the expected waiting time until the first ED return visit for violence or death.

CONCLUSIONS AND RELEVANCE

Violent injury is a reoccurring disease, with one-third of our AI group experiencing another violent injury requiring ED care within 2 years of the index visit, almost twice the rate of a non-AI comparison group. Secondary violence prevention measures addressing substance use and mental health needs are needed to decrease subsequent morbidity and mortality due to violence in the first 6 months after an assault injury.

Prevalence and predictors of mental disorders in intentionally and unintentionally injured emergency center patients

Little is known about the prevalence and predictors of mental disorders among injured emergency center (EC) patients in low- and middle-income countries (LMICs). Patients presenting with either an intentional or unintentional injury were recruited (N = 200). Mental health, injury, and psychological trauma histories were assessed. Descriptive statistics and logistic regressions were conducted, and predictors of current mental disorder were identified. Diagnostic criteria for a current mental disorder, including substance use disorders, were met by 59.5% of the participants. Compared with those with an unintentional injury, the intentionally injured participants were more likely to be diagnosed with a current mental disorder (66.9% vs. 48.8%, p = .01). High frequencies of previous intentional injuries predicted for current mental disorder (OR = 1.46, 95% CI 1.08-1.98), whereas male gender and witnessed community violence predicted substance use disorder diagnoses. The findings indicate that injured EC patients, particularly those with intentional injuries, are at risk for mental disorders. Psychosocial interventions in the EC context can potentially make an important contribution in reducing the burden of mental disorders and injuries in LMICs.

ER visits predict premature death among teenagers

BACKGROUND

The purpose of this study was to investigate if teenagers visiting an emergency room because of injury have an increased risk of premature death ahead and, if so, identify possible risk factors and suggest preventive measures.

METHODS

In January 2010, the personal identity numbers of 12,812 teenagers who had visited the emergency room at the University Hospital in Umeå, Sweden, during 1993 through 2006 because of injury were checked against the National Cause of Death Register in Sweden. Standardised mortality ratio and confidence intervals were calculated. For the unnatural deaths that took place in Sweden, the police report, autopsy protocol, and hospital records, if present, were studied.

RESULTS

Thirty-eight fatalities were included giving a standardised mortality ratio of 1.44 (95% CI: 1.02-1.98). A majority of the decedents were males (n=32, 84%) and the median age at the time of death was 21 years. Twenty-three deaths were caused by unintentional injuries and ten by intentional injuries (all suicides), while five deaths were categorised as undetermined whether intentional or not. Seventy-four percent tested positive for either alcohol or drugs or a combination at the post mortem examination. Nine males and one female committed suicide, five tested positive for alcohol (one also for drugs), while four tested negative at the post mortem examination. One died abroad and in this case we lack information on alcohol and drugs.

CONCLUSION

Teenagers visiting an emergency room due to injury experience an increased risk of premature death by unnatural cause and those at risk are especially males. The use of alcohol and drugs often seems to contribute to their untimely deaths. Identifying those at risk when they visit the emergency room for an injury and to take preventive actions at this stage could be a way to reduce the number of fatalities.

Maximizing the role of emergency departments in the prevention of violence: developing an approach in South London

This article presents an overview of a partnership between public health teams in two primary care trusts in South East London, their local acute hospital trusts, and crime and disorder reduction partnerships to support the reduction of harm from violence. It discusses recent developments in violence prevention in emergency departments in the UK, and developments around outreach and case management, more common in the USA. It then outlines the elements of the violence prevention project being conducted in South East London.

Community-based participatory research: development of an emergency department-based youth violence intervention using concept mapping

OBJECTIVES

Emergency departments (EDs) see a high number of youths injured by violence. In Ontario, the most common cause of injury for youths visiting EDs is assault. Secondary prevention strategies using the teachable moment (i.e., events that can lead individuals to make positive changes in their lives) are ideal for use by clinicians. An opportunity exists to take advantage of the teachable moment in the ED in an effort to prevent future occurrences of injury in at-risk youths. However, little is known about perceptions of youths, parents, and community organizations about such interventions in EDs. The aims of this study were to engage youths, parents, and frontline community workers in conceptualizing a hospital-based violence prevention intervention and to identify outcomes relevant to the community.

METHODS

Concept mapping is an innovative, mixed-method research approach. It combines structured qualitative processes such as brainstorming and group sorting, with various statistical analyses such as multidimensional scaling and hierarchical clustering, to develop a conceptual framework, and allows for an objective presentation of qualitative data. Concept mapping involves multiple structured steps: 1) brainstorming, 2) sorting, 3) rating, and 4) interpretation. For this study, the first three steps occurred online, and the fourth step occurred during a community meeting.

RESULTS

Over 90 participants were involved, including youths, parents, and community youth workers. A two-dimensional point map was created and clusters formed to create a visual display of participant ideas on an ED-based youth violence prevention intervention. Issues related to youth violence prevention that were rated of highest importance and most realistic for hospital involvement included mentorship, the development of youth support groups in the hospital, training doctors and nurses to ask questions about the violent event, and treating youth with respect. Small-group discussions on the various clusters developed job descriptions, a list of essential services, and suggestions on ways to create a more youth-friendly environment in the hospital. A large-group discussion revealed outcomes that participants felt should be measured to determine the success of an intervention program.

CONCLUSIONS

This study has been the springboard for the development of an ED-based youth violence intervention that is supported by the community and affected youth. Using information generated by youth that is grounded in their experience through participatory research methods is feasible for the development of successful and meaningful youth violence prevention interventions.

Do repeat victims of interpersonal violence have different demographic and socioeconomic characters from non-repeat victims of interpersonal violence and the general population? A population-based case-control study

AIM

To study if adult repeat victims of violence have different demographic and socioeconomic character from non-repeat victims of violence and the general population.

METHODS

Case-control study comparing demographic and socioeconomic characteristics before first-time victimisation among repeat victims of violence to that of non-repeat victims and population-based controls. Repeat and non-repeat victims were included from an urban emergency department and an institute for forensic medicine. Data was analysed using logistic regression in unadjusted, semi-adjusted, and fully-adjusted models.

RESULTS

For almost all demographic and socioeconomic factors in our study, the strongest associations were found when repeat victims were compared to population-based controls, whereas associations obtained from comparison with non-repeat victims were less pronounced. Compared to non-repeat victims, factors most strongly associated with repeat victimisation were being a pensioner (OR 3.21), being unemployed (OR 2.11), high level of lifetime unemployment (OR 1.50), high level of household crowding (OR 1.49), and living without a partner (OR 1.30). Compared to population-based controls, factors most strongly associated with victimisation were being a pensioner (OR 6.83), being unemployed (OR 3.01), living without a partner (OR 3.15), high level of lifetime unemployment (OR 2.40), high levels of household crowding (OR 2.35), large age difference to partner (OR 1.82), and citizenship in a country outside Europe (OR 1.61).

CONCLUSIONS

The study indicates that repeat victims of violence may be a demographic and socioeconomic subgroup of adult victims of violence characterised by certain pronounced risk factors which are already present at the time of the first episode of violent victimisation.

Youth violence secondary prevention initiatives in emergency departments: a systematic review

OBJECTIVE

Youth violence continues to trouble Canadians. Emergency department (ED) visits by youth after a violent injury may represent a "teachable moment," and thus secondary violence prevention interventions may be effective. We conducted a systematic review to identify the success rates of any interventions, the populations likely to benefit and the outcome measures used.

DATA SOURCE

We searched 8 databases (i.e., MEDLINE, EMBASE, PubMed, CINAHL, the Cochrane Database of Systematic Reviews, the ACP Journal Club, DARE and CENTRAL).

STUDY SELECTION

Studies were included if they described and evaluated an intervention, were health care-based and targeted youth who were injured by violence. Two blinded investigators selected 15 articles from 181 abstracts. After full-text review, 8 articles were excluded, leaving 7 articles from 4 intervention programs.

DATA EXTRACTION

All interventions used ED case management of the violently injured patient. One randomized control trial (RCT) demonstrated a significant reduction in reinjury rates (treatment group 8.1% v. control group 20.3%, p = 0.05). Another small RCT found no statistically significant reductions in repeat violence or service use. One retrospective cohort study demonstrated a lower relative risk (RR) in future criminal justice involvement (RR = 0.67, 95% confidence interval 0.45-0.99). A retrospective study of pediatric patients with violent injuries found only 1% of these youth returned with injuries as a result of repeat violence.

DATA SYNTHESIS

Although all 4 case management interventions that we reviewed showed promise in the United States, small sample sizes and incomplete follow-up limited their ability to demonstrate significant decreases in reinjury.

CONCLUSION

Future research is necessary to help EDs capitalize on the opportunity to effectively reduce youth violence.

The epidemiology of repeat contacts with an Emergency Department or an Institute of Forensic Medicine due to violent victimization in a Danish urban population

OBJECTIVE

The aim of this study was to describe the epidemiology of repeat contacts with an urban emergency department (ED) and/or an institute of forensic medicine.

METHODS

All victims of violence in contact with the ED at Odense University Hospital and/or the Institute of Forensic Medicine, University of Southern Denmark 1991-2002 were included. Victims who had two or more contacts were identified as repeat victims and a recurrence proportion was estimated. Survival analysis was made with time of observation from the first to the second contact due to violence and a repetition percentage was estimated as the proportion with repeated characteristics in the incident leading to the second contact compared to the index contact and a repetition percentage was estimated.

RESULTS

Overall 10,216 individuals with 14,307 incidents were included in the study. Overall, the recurrence proportion was 22% and repeat victims who were responsible for 44% of all contacts to the ED and/or the Institute of Forensic Medicine in the study period. The median time from first to the next incident was 1.75 years for males and 1.64 years for females. Overall 34% of the males and 37% of the females experienced the next incident within 1 year. The time span decreased significantly with increasing age for both males and females. The frequency of weapon use was low with a repetition percentage of 17% for males and 7% for females. For potential severe lesions such as bone fractures and internal lesions the repetition percentage was 28% and 19% for males and 23% and 25% for females.

CONCLUSIONS

The present study showed that contact with an ED due to violent victimization often is followed by subsequent contacts with the same ED and/or the IFM due re-victimization and that recurrent incidents share characteristics.

Previous head injury is a risk factor for subsequent head injury in children: a longitudinal cohort study

OBJECTIVE

The objective of this study was to determine whether children who sought care for a head injury were at greater risk of having a subsequent head injury within the following 6 and 12 months compared with children who sought care for an injury other than to the head.

DESIGN/SETTING

This was a longitudinal cohort study conducted in the emergency departments of 2 Montreal (Quebec, Canada) pediatric hospitals.

PARTICIPANTS

The parents of 11,867 injured children aged 1 to 18 years were interviewed by telephone at 6 (n = 10,315) and 12 (n = 9486) months after their child's injury to ascertain outcome (ie, subsequent head injury) and to provide information on potential risk factors (age, gender, chronic medical condition, activity level, and socioeconomic status).

MAIN OUTCOME MEASURE

The outcome of interest was a head injury requiring medical attention within the following year ascertained by parental recall or physician claims data.

RESULTS

A total of 245 and 386 previously head-injured children sustained a subsequent head injury within 6 and 12 months, respectively. Children who sought care for an initial head injury (n = 3599) were at higher risk of having a subsequent head injury within 6 months than children who sought care for an injury not to the head (n = 6716). The adjusted odds ratio suggested weak confounding by age, gender, and history of previous head injury. Results were consistent on the basis of physician claims data and 12-month follow-up interview data.

CONCLUSIONS

These results provide evidence that having a head injury increases a child's risk of having a subsequent head injury. Although age, gender, and history of previous head injury confound the relationship, the effect remains substantial.

Long term health outcomes after injury in working age adults: a systematic review

BACKGROUND

Estimating the contribution of non-fatal injury outcomes remains a considerable challenge and is one of the most difficult components of burden of disease analysis. The aim of this systematic review was to quantify the effect of being injured compared with not being injured on morbidity and health service use (HSU) in working age adults.

METHODS

Studies were selected that were population based, had long term health outcomes measured, included a non-injured comparison group, and related to working age adults. Meta-analysis was not attempted because of the heterogeneity between studies.

RESULTS

Nine studies met the inclusion criteria. In general, studies found an overall positive association between injury and increased HSU, exceeding that of the general population, which in some studies persisted for up to 50 years after injury. Disease outcome studies after injury were less consistent, with null findings reported.

CONCLUSION

Because of the limited injury types studied and heterogeneity between study outcome measures and follow up, there is insufficient published evidence on which to calculate population estimates of long term morbidity, where injury is a component cause. However, the review does suggest injured people have an increased risk of long term HSU that is not accounted for in current methods of quantifying injury burden.

The risk of reinjury in relation to time since first injury: a retrospective population-based study

BACKGROUND

Trauma victims have been found to be at increased risk for reinjury. Determining the risk factors for reinjury and the temporal pattern of reinjury risk can help with targeting of intervention strategies for preventing trauma recurrence.

METHODS

We performed a retrospective, population-based study in Washington State from 1986 to 2001. Individuals aged 15 to 64 years who were hospitalized for injury were followed for 5 years for hospitalization or death because of reinjury. Poisson regression was used to determine the rate ratio of reinjury, compared with the baseline rate of injury, as a function of time since first injury. Among those injured, proportional hazards regression was used to determine risk factors for reinjury.

RESULTS

The risk of subsequent injury hospitalization or death was elevated 2.59-fold (95% CI: 2.50, 2.68) during the period from 6 months to 5 years after the initial injury. Excluding from analysis the first 6 months after initial injury, the risk of reinjury was highest at 4.10 (95% CI: 3.83, 4.40) between 6 and 12 months after first injury, and then declined to approximately 2.0-fold increased risk above baseline by 30 months. Individuals with self-inflicted injuries were found to be at particularly high risk of reinjury [Hazard Ratio (HR) 2.60 (2.21, 3.05)]. Increasing age, male gender, and alcohol use were also associated with increased reinjury risk. Any injury to the face, spine, and extremities were associated with a decreased risk of reinjury.

CONCLUSIONS

Reinjury risk is highest soon after injury, but persists for at least 5 years after initial injury. Periodic interventions through 5 years after injury, particularly in certain high-risk groups, might have lasting effects on reinjury rates.

Pathways to recurrent trauma among young Black men: traumatic stress, substance use, and the "code of the street"

Recurrent interpersonal violence is a major cause of death and disability among young Black men. Quantitative studies have uncovered factors associated with reinjury, but little is known about how these factors work together. We interviewed young Black male victims to understand their experience of violence. Qualitative analysis of their narratives revealed how their struggle to reestablish safety shaped their response to injury. Aspects of the "code of the street" (including the need for respect) and lack of faith in the police combined with traumatic stress and substance use to accentuate their sense of vulnerability. Victims then reacted to protect themselves in ways that could increase their risk of reinjury. We describe a model with implications for reducing rates of recurrent violent injuries.

The detection and treatment of posttraumatic distress and substance intoxication in the acute care inpatient setting

Each year, approximately 2.5 million Americans require inpatient admissions after sustaining traumatic physical injuries. Few investigations have assessed the routine detection and treatment of acute care inpatients with high levels of posttraumatic distress. A representative sample of 101 hospitalized patients with acute injuries was screened for posttraumatic stress disorder (PTSD) and depressive symptoms, as well as substance intoxication. Patients' medical records were reviewed for documentation of psychiatric symptoms and diagnoses and the initiation of early evaluation and treatment. High levels of PTSD and/or depressive symptoms were present in over 50% of patients. Although providers frequently noted symptomatic distress, few symptomatic patients received formal diagnoses, evaluations or treatment. Patients who had positive substance toxicology screens on admission infrequently received in-depth evaluation or treatment. A substantial number of injured trauma survivors have high levels of symptomatic distress that are inconsistently evaluated and treated in the acute care medical setting. Mental health interventions appear to be feasibly and effectively delivered from trauma centers. Therefore, ongoing investigation and policy initiatives informing the detection and treatment of patients with psychiatric disturbances in acute care could substantially enhance the quality of mental health care for injured survivors of individual and mass trauma.

Is it an accident? Recurrent traumatic life events in level I trauma center patients compared to the general population

The trauma history screen developed for the National Comorbidity Survey (NCS) was used to assess prior trauma in a representative sample of injured acute care inpatients (n = 251). Adjusted logistic regressions compared the trauma histories of intentionally (n = 66) and unintentionally (n = 185) injured patients with NCS participants (n = 5873). Whereas only 11% of NCS respondents reported 4 or more lifetime traumas, 61% of intentionally injured patients (Adjusted OR = 7.97, 95% CI = 4.33, 14.68) and 40% of unintentionally injured patients (Adjusted OR = 4.26, 95% CI = 2.94, 6.16) reported 4 or more lifetime traumas. In adjusted analyses, inpatients were at increased risk for reporting all types of trauma except combat. Screening and intervention procedures that address the unique characteristics of this high-risk patient population are needed in the acute care setting.

Posttraumatic distress, alcohol disorders, and recurrent trauma across level 1 trauma centers

BACKGROUND

Injured survivors of individual and mass trauma receive their initial evaluation in acute care. Few investigations have comprehensively screened for posttraumatic stress disorder (PTSD) symptoms and related comorbidities across sites.

METHODS

This investigation included 269 randomly selected injury survivors hospitalized at two level 1 trauma centers. All patients were screened for PTSD, depressive, and peritraumatic dissociative symptoms during their surgical inpatient admission. Prior traumatic life events and alcohol abuse/dependence also were assessed.

RESULTS

In this study, 58% of the patients demonstrated high levels of immediate posttraumatic distress or alcohol abuse/dependence. Regression analyses identified greater prior trauma, female gender, nonwhite ethnicity, and site as significant independent predictors for high levels of posttraumatic distress.

CONCLUSIONS

High levels of posttraumatic distress, recurrent trauma, and alcohol abuse/dependence were present in more than half of acute care inpatients. Early mental health screening and intervention procedures that target both PTSD and alcohol use should be developed for acute care settings.

Predictors of future fight-related injury among adolescents

OBJECTIVE

Nonfatal fight-related injuries among youths result in lost capacity and high costs of medical care and rehabilitation and constitute a major public health problem. This study identifies factors that predict the occurrence of a fight-related injury that requires medical attention among boys and girls.

METHODS

We analyzed data from 14 787 adolescents who completing 2 interviews, approximately 1 year apart, in the National Longitudinal Study of Adolescent Health, a nationally representative, school-based sample of youths. We identified time 1 factors at the community, family, and individual levels that predicted any self-reported fight-related injury that required medical treatment at time 2.

RESULTS

Factors that predict future injury among both boys and girls in multivariate models were violence-related factors: witnessing or being a victim of violence (odds ratio [OR]: 3.69; 95% confidence interval [CI]: 1.81-7.49 for boys; OR: 5.13; 95% CI: 1.25-21.09 for girls), history of a violence-related injury (OR: 2.30; 95% CI: 1.60-3.29 for boys; OR: 3.18; 95% CI: 1.87-5.41 for girls), and physical fighting (OR: 2.02; 95% CI: 1.44-2.84 for boys; OR: 5.15; 95% CI: 3.18-8.34 for girls). Among boys, illicit drug use was also an independent predictor of future injury (OR: 1.72; 95% CI: 1.24-2.37), whereas excellent perceived general health (OR: 0.48; 95% CI: 0.25-0.93) and a high grade point average (OR: 0.52; 95% CI: 0.29-0.95) were significant protective factors against fight-related injury. Girls who reported a high level of depressive symptoms were much more likely to report fight-related injury than nondepressed girls (OR: 8.98; 95% CI: 2.43-33.25).

CONCLUSIONS

Factors related to violence, substance use, school achievement, and physical and mental health predicted a future fight-related injury that required medical treatment. The results could assist health and social service providers, educators, and others in identifying youths who are at high risk for fight-related injury and may benefit from appropriate intervention.

Injury hospitalization and risks for subsequent self-injury and suicide: a national study from New Zealand

OBJECTIVES

Risks for suicide and nonfatal self-injury hospitalizations associated with previous injury hospitalizations were investigated in a nationwide retrospective cohort study conducted in New Zealand.

METHODS

Linked data from all New Zealand public hospitals were used to identify individuals with injury hospitalizations. Participants were followed for 12 months.

RESULTS

Significantly increased age- and sex-adjusted relative risks for suicide were associated with previous hospitalization for self-injury, injuries of undetermined causes, and assault. Also, elevated risks were associated with these causes of hospitalization in the case of subsequent self-injury hospitalizations.

CONCLUSIONS

Results indicate that identifiable subgroups of individuals hospitalized for injuries are at marked risk for serious suicidal behavior and suggest the potential of targeted suicide prevention for these individuals.

Characteristics of the trauma recidivist: an exploratory descriptive study

INTRODUCTION

The purpose of this study was to identify characteristics and perceptions of trauma recidivists. Information obtained from this study will help health care professionals better understand trauma patients and design more effective trauma prevention programs.

METHODS

An exploratory descriptive, correlational design was used. A convenience sample of 100 trauma patients entering a midwestern university medical center were studied. A demographic chart review and a personal interview consisting of 29 questions were conducted for each subject. The interview questions sought information regarding high-risk behavior, risk-taking personality traits, safety precautions used, and social, psychological, and environmental factors surrounding the patient's traumatic event.

RESULTS

Thirty-six percent of trauma patients studied were recidivists. The recidivist was more likely to be male, younger than 45 years, a member of a racial minority, single, uninsured, and have less than 12 years of education. Behavioral characteristics common to most recidivists included a history of past arrests, illegal drug use, and having witnessed past violent injuries.

DISCUSSION

Trauma remains one of the most devastating diseases facing americans. Characteristics of trauma recidivists have been identified, and further research is needed to test possible interventions to curb the unnecessary trauma injuries that occur every day.

High-risk periods for childhood injury among siblings

OBJECTIVE

To determine whether the risk of unintentional injury requiring emergency department (ED) or inpatient care in children is transiently increased over a 90-day period after injury to a sibling.

DESIGN

Retrospective cohort.

SETTING

King County, Washington. Participants. A total of 41 242 children 0 to 15 years of age continuously enrolled in Medicaid and living in King County during the period October 1, 1992 through September 30, 1993 (27 450 child-years).

OUTCOME MEASURES

The outcome was an unintentional injury treated in the ED or inpatient setting. Incidence rates and hazard ratios were calculated for children whose sibling had been injured in the previous 90 days, compared with children without such exposure. Multivariate analysis was used to adjust for age, gender, race, sibling group size, and noninjury ED use.

RESULTS

. There were 4921 injuries treated only in the ED and 82 hospital admissions. The incidence of ED treated injury was 305 per 1000 child-years among children whose sibling had been injured in the previous 90 days and 174 per 1000 child-years among children without this exposure (relative risk: 1.75; 95% confidence interval: 1.56-1.95). The incidence of injury-related hospitalization was 1.7 per 1000 child-years among children whose sibling had been injured in the previous 90 days, compared with 3.0 per 1000 child-years among children without this exposure (relative risk:.57; 95% confidence interval:.07-2.12). Injury risk peaked in the period 4 to 10 days after a sibling's injury and returned toward, but did not attain, baseline risk over the subsequent 21/2 months. The magnitude of this effect depended on the child's age; the relative risk of injury was higher among older children.

CONCLUSIONS

Injuries treated in the ED or inpatient setting appear to cluster within sibling groups over brief periods of time. Shared social or environmental exposures may contribute to this clustering and may be amenable to targeted, time-limited prevention interventions.

Personal and family predictors of children's medically attended injuries that occurred in the home

OBJECTIVE

This study examined the independent contributions of demographic, behavioral, and environmental antecedents of pediatric medically attended injuries that occurred in the home.

SETTING

Two household and thirty six American children aged 4-12 in 1988 were drawn from the National Longitudinal Survey of Youth.

METHOD

Multiple logistic regression was used to examine whether having a medically attended injury that occurred in the home in 1990 was related to environmental, behavioral, and demographic indicators measured in 1988. To account for individual differences in access to care, results were stratified within samples of children that had, and had not, demonstrated a prior ability to access the medical care system for injury treatment.

RESULTS

Among children who did not access the medical care system for injury treatment in 1988, measures of home environmental risk factors did not distinguish those injured at home from those not injured at home in 1990. However, among children who did access the medical care system for injury treatment in 1988, indicators of "dark" (relative risk 4.68, p = 0.019) and "cluttered" (relative risk 4.31, p = 0.038) home environments became significantly and independently associated with home injuries in 1990.

CONCLUSION

If not accounted for in data collection or analyses, individual differences in non-financial barriers to medical care may read to an underestimation of the influences of important home environmental risk factors for medically attended injuries.

Trends in firearm-related injuries in Washington State, 1989-1995

STUDY OBJECTIVES

To describe the incidence and outcome of firearm-related injuries and to describe trends over time.

DESIGN

Information about firearm-related injuries in Washington state was extracted from computerized death certificate and hospital discharge files for the period 1989 through 1995. Cases seen only in emergency departments were estimated using initial results from a statewide firearm injury surveillance system.

RESULTS

An estimated 9,995 persons were shot during the 7-year period (incidence 28.0/100,000 person-years); 2,944 persons (29%) required ED care only, 2,864 persons (29%) were hospitalized and survived, and 4,187 persons (42%) died. Survival was lowest for suicide attempts (11%), intermediate for assaults (68%), and greatest for unintentional shootings (96%). Most deaths (91%) occurred before hospital admission. From 1989 to 1995, the incidence of firearm-related injuries showed little change: an increase of 4.5%. However, suicidal shootings among persons younger than 35 years increased by 31.3%, and the incidence of firearm-related assaults rose by 53.7% among persons of all ages. Survival among all persons who were shot and among hospitalized shooting victims showed little change over time.

CONCLUSION

Firearm-related suicides among the young and assault-related shootings among all persons increased. The estimated proportion of shooting victims who survived did not change over time.

Consequences of violence. Premature death, violence recidivism, and violent criminality

The burden of violence is born disproportionately by the youngest of our country. In this article, three important aspects of violence are discussed: premature death, violence recidivism, and violent criminality. The author emphasizes the role of the pediatrician in preventing these consequences.

Relationships between ambulance transports for alcohol intoxication and assault

OBJECTIVE

To evaluate the association between ambulance transports for assault and those for alcohol intoxication.

METHODS

A retrospective analysis of emergency medical services (EMS) calls was performed. The authors used logistic regression models to compare patients transported for alcohol intoxication with a control group of patients transported for respiratory distress (asthma or shortness of breath) with respect to whether they had been transported on a separate occasion for a chief complaint of assault.

RESULTS

Patients transported for alcohol intoxication had 9 times the risk of transport for assault as compared with the control group (OR = 9.3; 95% CI = 6.4, 13.6). The odds of transport for assault among the alcohol patients increased 17.1% with each alcohol transport (OR = 1.17; 95% CI = 1.14, 1.20) but decreased for the control group (OR = 0.34; 95% CI = 0.26, 0.44). Repeat transports for assault were more common among the alcohol patients than among the control group (OR = 3.3; 95% CI = 1.1, 11.3). The mean number of assault transports was higher among the alcohol patients than among the patients never transported for alcohol intoxication (p < 0.0001).

CONCLUSIONS

Patients transported on multiple occasions for acute alcohol intoxication are at relatively high risk for assault. This risk group should be targeted for focused assault prevention interventions that include components designed to reduce incidents of repeat alcohol intoxication.

Previous trauma as a risk factor for recurrent trauma in rural northern Israel

BACKGROUND

Recently, a few urban trauma centers reported on repetitiveness of injury in some population groups. The aim of this study is to evaluate the concept of "trauma recidivism" by measurement of the association of previous trauma events with acute trauma in a rural region of northern Israel with a specific sociocultural population mixture, low drug and alcohol abuse, and low levels of criminal activity.

METHODS

A case-control study was conducted comparing 100 consecutive trauma cases with selected controls. The main predictor variable evaluated in this study was a history of previous significant traumatic events. Cases were defined as patients > 14 years of age hospitalized for acute trauma. Controls were selected from hospitalized patients with nontraumatic conditions. Logistic regression analysis was performed to adjust for potential sociodemographic confounding factors.

RESULTS

The trauma group was significantly younger (p < 0.001) and predominantly male (p < 0.03). The incidence of "recurrent trauma" was highly significant in this group (p < 0.00001), and "injury-free intervals" were significantly shorter (p < 0.002). A history of previous significant traumatic events was a strong predictor for recurrent trauma (adjusted odds ratio, 10.36; 95% confidence interval, 3.10-34.58). Injury types and patterns differed in subgroups, although the demographic structure of the trauma recidivists group conformed to that of the general population.

CONCLUSIONS

In this limited population study from rural northern Israel, a previous history of significant trauma is associated with recurrent trauma. Sociodemographic and cultural factors do not appear to be strong predictors for recurrent trauma. Further research investigating trauma recidivism is needed to clarify these relationships.