National Violent Death Reporting System Research Articles

Homicide-Suicide in the United States: Moving Toward an Empirically Derived Typology.

Homicide-suicide is an extremely heterogeneous and rare form of lethal violence. In an effort to capture this heterogeneity to enhance research and prevention efforts, typologies have been developed from literature reviews or geographically limited samples. The purpose of the present study was to develop the first empirically derived typology of homicide-suicide decedents, using a large, geographically diverse sample. Data were used from the Centers for Disease Control and Prevention's National Violent Death Reporting System from 2003 to 2015 across 27 states. Homicide-suicide decedents were included if they were ≥ 18 years of age, they were the only victim and suspect involved, they had a known relationship with the victim(s), and the circumstances surrounding the event were known. There were 2,447 decedents that met study criteria. Unsupervised machine learning was used to classify decedents by precipitating circumstances and victim types. Eight homicide-suicide subtypes were identified and cross-validated in a holdout sample. Three subtypes consisted of only intimate partner victims, 3 subtypes had a single victim type (children, extrafamilial, other family), and there were 2 multivictim subtypes: one that could be identified as familicide and the other in which there was indiscriminate killing, which often included an intimate partner. Subtypes were distinguishable by demographic and other characteristics (median area under the curve = 0.77). Relationship problems precipitated 60%-92% of homicide-suicides across subtypes, while mental health problems were recognized as a precipitant in 7%-72% of decedents across subtypes. The findings expand upon and validate previously proposed homicide-suicide typologies. While relationship problems are common precipitants across homicide-suicide subtypes, known mental health problems vary across subtypes.

Disparities in potential years of life lost due to intimate partner violence: Data from 16 states for 2006-2015.

Intimate partner violence can lead to deaths of one or both partners and others (i.e., corollary victims). Prior studies do not enumerate the societal cost of intimate partner violence-related fatalities, exclude corollary victims from most analyses, and do not describe groups who bear the highest societal costs from intimate partner violence. We examine racial/ethnic and gender-based disparities in potential years of life lost (PYLL) among intimate partners and corollary victims of intimate partner violence-related mortality. We used 16 US states' 2006-2015 National Violent Death Reporting System data to estimate PYLL among intimate partners (n = 6,282) and corollary victims (n = 1,634) by victims' race/ethnicity and sex. We describe fatalities by sex, race/ethnicity, age, and victim-suspect relationships and used hierarchical linear models to examine PYLL per death differences by victims' sex and race/ethnicity. Nearly 290,000 years of potential life were lost by partner and corollary victims as a result of IPV in 16 states during the decade of study. Most partner victims were female (59%); most corollary victims were male (76%). Female intimate partners died 5.1 years earlier (95% CI: 4.4., 5.9) than males, and female corollary victims died 3.6 years (1.9, 5.5) earlier than males. Racial/ethnic minorities died nine or more years earlier than their White counterparts. White males had the lowest PYLL per death of all sex/race groups. Intimate partner violence-related fatalities exact a high societal cost, and the burden of that cost is disproportionately high among racial/ethnic minorities. Future interventions targeting specific sex and race/ethnic groups might help reduce disparities in intimate partner violence burden.

Racial Disparities in Pregnancy-associated Intimate Partner Homicide.

Pregnancy-associated femicide accounts for a mortality burden at least as high as any of the leading specific obstetric causes of maternal mortality, and intimate partners are the most common perpetrators of these homicides. This study examined pregnancy-associated and non-pregnancy-associated intimate partner homicide (IPH) victimization among racial/ethnic minority women relative to their non-minority counterparts using several sources of state-level data from 2003 through 2017. Data regarding partner homicide victimization came from the National Violent Death Reporting System, natality data were obtained from the Centers for Disease Control and Prevention's National Center for Health Statistics, and relevant sociodemographic information was obtained from the U.S. Census Bureau. Findings indicated that pregnancy and racial/ethnic minority status were each associated with increased risk for partner homicide victimization. Although rates of non-pregnancy-associated IPH victimization were similar between Black and White women, significant differences emerged when limited to pregnancy-associated IPH such that Black women evidenced pregnancy-associated IPH rates more than threefold higher than that observed among White and Hispanic women. Relatedly, the largest intraracial discrepancies between pregnant and non-pregnant women emerged among Black women, who experienced pregnancy-associated IPH victimization at a rate 8.1 times greater than their non-pregnant peers. These findings indicate that the racial disparities in IPH victimization in the United States observed in prior research might be driven primarily by the pronounced differences among the pregnant subset of these populations.

Characteristics and patterns of older adult homicides in the United States

BackgroundNearly 1800 homicides were reported in 2018 among individuals aged 60 years or older in the US. The characteristics and circumstances of these homicides are understudied. We investigated the trends of homicides over time and compared victim, perpetrator, and incident characteristics by mechanism (firearm vs. non-firearm) among adults aged 60 years or older.MethodsWe examined cross-sectional restricted-access data from the National Violent Death Reporting System from 2003 to 2017. Fatal Injury Data by CDC provided age-adjusted homicide rates. We quantitatively summarized victim, perpetrator, and incident characteristics for firearm and non-firearm homicides. We also reviewed 150 qualitative narratives to better understand the context of older adult homicides perpetrated by firearms. All data were analyzed in February 2020.ResultsOverall and firearm-specific older adult homicide rates increased between 2014 and 2017. Of the 6188 victims, 62% were male. The majority of victims (68%) were killed at home. Firearms (44%), sharp (19%) and blunt weapons (15%) were common mechanisms used in older adult homicides. The perpetrator was an intimate partner in 39% of firearm homicides and 12% of non-firearm homicides (prevalence difference = 27%; 95% CI: 25, 30%). Similarly, homicide-suicides (prevalence difference = 21%; 95% CI: 19, 22%) and multiple-victim incidents (prevalence difference = 7%; 95% CI: 5, 8%) were more common in firearm (23 and 13%, respectively) than in non-firearm (2 and 6%, respectively) homicides. Common contexts of firearm homicides were familial/intimate partner problems, robbery/burglary, argument, and illness.ConclusionsA substantial number of older adults were killed with firearms and by their intimate partners. Further research to identify violence victimization prevention strategies in this group, especially those that limit access to firearms by potential perpetrators, is warranted.

Circumstances Associated With Suicides Among Females-16 States, United States, 2005-2016.

Suicide rates in the United States have been consistently increasing since 2005 and increasing faster among females than among males. Understanding circumstances related to the changes in suicide may help inform prevention programs. This study describes the circumstances associated with suicides among females in the United States using the National Violent Death Reporting System. We analyzed the circumstances of suicides occurring from 2005 to 2016 in 16 states (Alaska, Colorado, Georgia, Kentucky, Maryland, Massachusetts, New Jersey, New Mexico, North Carolina, Oklahoma, Oregon, Rhode Island, South Carolina, Utah, Virginia, and Wisconsin) among females aged 10 years and above. We compared the percentages of circumstances reported for the entire sample, by age group, and by race/ethnicity. Trends in changes in the leading circumstances were analyzed using Joinpoint regression. From 2005 to 2016, there were 27,809 suicides among females 10 years and older in the 16 states. Overall, the 2 leading precipitating circumstances were current mental health problem and ever treated for mental health problem. The leading circumstances differed by demographics. Joinpoint analysis showed inflection points in reports of job problems, financial problems, and non-intimate partner relationship problems during 2005-2009. During 2010-2016, downward inflections were seen in reports of job problems and financial problems and upward inflections in substance abuse problems and a recent or impending crisis. These findings show changes by age group and race/ethnicity in the circumstances associated with suicides among females in the 16 states have occurred. Studying these shifts and identifying the most salient circumstances among female suicide decedents may help prevention programs adapt to different needs.

Comparisons between suicide in persons with serious mental illness, other mental disorders, or no known mental illness: Results from 37 U.S. states, 2003–2017

BackgroundSuicide is a leading cause of death in persons with schizophrenia and other serious mental illnesses (SMI), however, little is known about the characteristics and circumstances of suicide decedents with SMI in the US compared to those with other or no known mental illness. MethodsThis study was a retrospective analysis of suicide deaths in individuals aged ≥18 years from the National Violent Death Reporting System, 2003–2017. Odds ratios compared sociodemographic and clinical characteristics, cause of death, precipitating circumstances, and post-mortem toxicology results. All analyses were stratified by gender. ResultsOf the 174,001 suicide decedents, 8.7% had a known SMI, 33.0% had other mental disorders, and 58.2% had no known mental illness. Relative to persons with other mental disorders, SMI decedents were younger and more likely to have previous suicide attempts and co-occurring drug use. Problems with intimate partners, poor physical health, and recent institutional release were the most common precipitating circumstances for SMI decedents. Firearms were the most common suicide method for males with SMI. Although 67.0% male and 76.0% of female SMI decedents were currently in treatment, toxicology results suggest many were not taking antipsychotic or antidepressant medications at the time of death. ConclusionsPersons with SMI are over-represented in suicide deaths. Efforts to improve treatment of co-occurring substance use disorders, continuity of care following hospitalization, medication adherence, and to reduce access to firearms are important suicide prevention strategies.

Racial/Ethnic Differences in Preceding Circumstances of Suicide and Potential Suicide Misclassification Among US Adolescents.

There is a paucity of research on racial/ethnic differences in preceding circumstances of suicide among adolescents aged 10-19years and consequential potential misclassification of suicide deaths (i.e., manner of death classified as injury of undetermined intent). This study (1) examined preceding circumstances of suicide among non-Hispanic White, non-Hispanic Black, non-Hispanic Asian/Pacific Islander (A/PI), non-Hispanic American Indian/Alaskan Native (AI/AN), and Hispanic adolescent decedents; and (2) investigated potential suicide misclassification of racial/ethnic minority decedents. We used data from the 2006-2015 National Violent Death Reporting System Restricted Access Database. Multivariable logistic regression analyses examined differences in depressed mood, mental health problem and treatment, crisis in the past 2weeks, problems with school, intimate partner, family relationship, and other relationships (e.g., friend) among racial/ethnic minority decedents compared to White decedents. A separate logistic regression analysis assessed potential suicide misclassification of racial/ethnic minority decedents relative to White counterparts. Adjusting for sex and suicide history and circumstances, all racial/ethnic minority decedents had significantly lower odds of documented mental health problem and treatment compared to White decedents. Racial/ethnic differences in relationship problems were also identified. Black decedents had significantly higher odds of manner-of-death classification as undetermined intent than did White decedents, suggesting greater likelihood of suicide misclassification. Circumstances contributing to suicide among adolescents differ by race/ethnicity, indicating the need for culturally tailored suicideprevention efforts.

A comparison of farming- and non-farming-related suicides from the United States' National Violent Deaths Reporting System, 2003-2016.

Farmers are at higher risk of suicide than other occupations and the general population. The complex suicide risk factors have not been examined in a large, population-wide study across a significant time period. Thisobservational study drawson existing data from the United States' National Violent Death Reporting System (NVDRS), including 140,523 farming- or non-farming-related suicide decedents between 2003 and 2016 from across 40 states. "Farming-related" decedents included 2,801 suicides. Farmers had higher odds of being male, older, less well-educated, and American Indian/Alaska Native. Farmers had higher odds of using firearms and-when farmers used a gun-higher odds of using a long-arm weapon. Farmers had lower odds of having a known mental health condition or job problem, and lower odds of having made a previous suicide attempt or leaving a suicide note. Findings highlight the complexity of suicide risk within thecontext of farming in the United States and reinforce the need for tailored prevention efforts; employing means restriction of firearms; and emphasizingthat traditional risk factors may not be as common in the farming population.

Psychiatric diagnoses are associated with means selection in united states suicide deaths.

The purpose of this study was to examine whether the choice of means by persons who die by suicide is associated with a prior psychiatric diagnosis. In this cross-sectional study, we analyzed suicide surveillance data from 18 states reporting to the National Violent Death Reporting System (NVDRS) between 2003 and 2014. NVDRS compiled data from multiple sources (e.g., coroner's reports, police reports, death certificates) on every violent death within reporting jurisdictions, including information on indicated psychiatric disorders and suicide means. We assessed whether the selected suicide means were associated with diagnoses using multinomial logistic regression. Adjusted models suggested that, compared to decedents using firearms, those using poisoning were more likely to have each psychiatric disorder examined, including bipolar disorder (aOR: 2.17 [95% CI 2.03-2.32]), schizophrenia (aOR: 1.81 [1.61-2.04]), depression (aOR: 1.64 [1.58-1.70]), anxiety disorder (aOR: 1.46 [1.35-1.57]), and PTSD (aOR: 1.41 [1.22-1.64]). A far greater proportion of individuals who died from less common means (other than firearms, suffocation, or poisoning) had schizophrenia (aOR: 4.52 [4.00-5.11]). Many existing and proposed means restriction interventions have focused on firearms. Additional focus on access to potential agents of poisoning (e.g., the type and quantity of medication administered to patients) among individuals with psychiatric diagnoses may be warranted.

An Examination of Fatal Child Poisonings in the United States Using the National Violent Death Reporting System (NVDRS), 2012-2017

An Examination of Fatal Child Poisonings in the United States Using the National Violent Death Reporting System (NVDRS), 2012-2017

Risk Factors for Child Death During an Intimate Partner Homicide: A Case-Control Study.

Corollary victims represent approximately 20% of all intimate partner homicides (IPH), and many are children. We used National Violent Death Reporting System (NVDRS) data (2003-2017) to compare all IPH incidents with a child corollary victim (n = 227) to all IPH incidents where a child was present but not killed (n = 350). We examined risk factors for child fatality during an IPH. For each risk factor, we calculated the odds ratio for child death during the IPH, adjusting for multiple comparisons. Perpetrator history of suicidal behavior, rape of the intimate partner victim, a non-biological child of the perpetrator living in the home, and perpetrator job stressors increased odds while prior separation of the IPV victim from the perpetrator decreased the odds of a child death during an IPH incident. To our knowledge, this is the first case-control study using live-controls within NVDRS and can help direct prevention efforts for child death during IPH.

Physician death by suicide in the United States: 2012–2016

Reports of incidence of physician suicide in the United States (US) are outdated. The aims of this research were to assess incidence, methods, and associated risk factors of physicians compared to non-physicians in the general US population. Retrospective suicide data (victim age 25 and over) from the 2012–2016 National Violent Death Reporting System were analyzed to test for differences in rates, methods, and risk factors of male and female physicians to non-physicians. The dataset included 498 physician suicides (403 males and 95 females) and 74,420 non-physicians (57,188 males and 17,232 females). No significant difference was found in suicide incidence between gender and age-adjusted physicians vs. non-physicians, though the female physician rate of suicide appeared higher than female non-physicians. The male to female physician ratio of suicide was about 2:1, whereas the ratio in non-physicians was closer to 4:1. Female physicians used poisoning and hanging most often as a method of suicide, where males used firearms. Depressed mood (as perceived by self or others), mental health problems (defined by a diagnosis of depression, a prescribed antidepressants or toxicology report of antidepressants), poor general medical health, and work-related stressors were more frequently associated with physician than with non-physician suicides. In conclusion, results suggest a possible heightened risk to female physicians, which warrants further investigation. Several physician-specific modifiable suicide risk factors present opportunities for prevention.

Estimating the Frequency of Suicide Related to Driving Cessation Among Older Adults: A Data Science Approach

Up to 35% of older adults in the United States engage in partial to complete driving cessation. Suicide risk is highest among older adults, and driving cessation can precipitate psychosocial changes linked with elevated risk of suicide, such as loss of independence, mobility, and socialization. Little is known about the association between suicide and driving cessation among older adults. We developed a supervised machine learning natural language processing algorithm to estimate the frequency of and characterize suicides associated with driving cessation from restricted-access case narratives in the National Violent Death Reporting System (NVDRS, 2003-2015) from suicides and undetermined deaths among adults 55 years and older in 27 states. Among 47,759 decedents, preliminary results identified 972 deaths associated with driving cessation, with a mean age of 71.4, 91.5% White, and 78.3% Male. 13.8% of the decedents of driving cessation-associated suicide had a crisis contributing to the suicide within 2 weeks of death. This analysis assesses the relationship between contextual geographic features such as population density and the distribution of driving cessation-associated suicides across the US. Government and clinical stakeholders should invest in public transportation infrastructure catered to older adults and implement policies to reduce the burden of driving cessation. Increased accessibility of technological innovations such as self-driving cars may also enhance quality of life for a growing older adult population.

Examining the Racial Dynamic of the Victim-offender Dyad in Homicide-suicide: Does Intraracial Homicide Encourage Perpetrator Suicide?

Objectives: Compared to homicide-only, homicide-suicide is understudied in the criminological literature. This study investigates the victim-offender relationship—one of the most well-established correlates of homicide-suicide—from a new angle. In addition to examining the familiarity/closeness of the victim-offender relationship, this study investigates whether the racial composition (interracial versus intraracial) of the victim-offender dyad impacts the likelihood of committing suicide following homicide. Method: This study uses data on 26,858 homicide and homicide-suicide cases distributed across 3,178 places and 45 U.S. states from the National Violent Death Reporting System appended to information from the American Community Survey. Hierarchical logistic regression models examine the independent and joint contribution of: (1) the familiarity/closeness of the victim-offender relationship; and (2) the racial composition of the victim-offender dyad on homicide-suicide. Results: Killing familiar and same-race victims independently increase the odds of suicide following homicide; additionally, the odds of suicide following homicide are highest for offenders with both familiar and same-race victims. Conclusions: The findings suggest that homicide-suicide research should account for different aspects of the victim-offender relationship. Additionally, the importance of race/ethnicity extends to even the rarest of crimes.

Surveillance for Violent Deaths - National Violent Death Reporting System, 34 States, Four California Counties, the District of Columbia, and Puerto Rico, 2017.

Surveillance for Violent Deaths - National Violent Death Reporting System, 34 States, Four California Counties, the District of Columbia, and Puerto Rico, 2017.

Characteristics of interpersonal conflicts preceding youth suicide: analysis of data from the 2017 National Violent Death Reporting System.

Deaths by suicide among US adolescents aged 10 to 19 increased by more than 85% between 2007 and 2017. Interpersonal conflicts with peers or family members, in combination with biological, psychological, and cognitive attributes of adolescents, are among risk factors. More insight about contextual factors, including timing of conflicts relative to suicide, would be useful for professionals and programmers. We used data from the 2017 National Violent Death Reporting System (NVDRS) reflecting most cases in 37 US states to explore contextual circumstances in adolescent death by suicide preceded by interpersonal conflicts. We calculated descriptive statistics and conducted content analysis of narratives to identify attributes of 197 cases. Most deaths by suicide (n=155) occurred within 24hr of the conflict; most conflicts involved the adolescent and family members (n=138). When subject matter was described, most conflicts (n=27) focused on concerns with an adolescent's behavior. Nearly a quarter of cases (n=49) involved technology, including technology restrictions as punishment, as either a primary or additional aspect of the conflict. Our findings provide support for prior research suggesting links between technology and mental health concerns, including suicidality, among adolescents. While previous works have identified both positive and negative aspects of the use of technology by adolescents, our findings suggest that restriction of technology as a punishment may be an additional contextual factor of interest in a proportion of youth suicides preceded by an argument. Given ongoing regular use of technology, practitioners should address these potential risk factors regardless of risk status.

An epidemiologic study of suicide among firefighters: Findings from the National Violent Death Reporting System, 2003 - 2017

Suicide is a significant concern among fire service due to high rates of suicide behaviors. The aim of this study was to describe suicides among firefighters using national suicide death data. Data from the National Violent Death Reporting System for 722 firefighters and 192,430 non-firefighters were analyzed to compare sociodemographics and risk factors between firefighter and non-firefighter decedents; and among firefighters based on suicide means. A greater proportion of firefighter decedents died by firearm compared to non-firefighters. Firefighter decedents were less likely to have been diagnosed with depression, but more likely to have been diagnosed with post-traumatic stress disorder compared to non-firefighters. A greater percentage of firefighter decedents had a relationship or physical health problem prior to death, but a lower percentage had a history of suicide thoughts/attempts. Among firefighter decedents, multivariate analysis showed physical health problems and disclosing suicide intent predicted death by firearm. Greater awareness of risk factors, reduced access to lethal means, and ensuring access to behavioral health services may aide in decreasing suicide mortality in this population. These findings should be interpreted with caution due to limitations concerning report accuracy, generalizability, small female sample size, and inclusion of data only for lethal suicide attempts.

Firearms and protective orders in intimate partner homicides.

To determine differences among intimate partner homicides (IPH) by whether or not a firearm was used in and whether a protective order (PO) was filed prior to IPH. We identified all incidents of IPH recorded in the National Violent Death Reporting System from 2003-2018, based on the relationship between victim and perpetrator. We characterized incidents, perpetrators and victims in IPH cases by whether or not a firearm was used, and whether a PO had been sought or issued prior to the IPH. We identified 8,375 IPH incidents with a total of 9,130 victims. Overall 306 (3.3%) victims were killed in a firearm IPH with PO, 4,519 (53.9%) in a firearm IPH without PO, 176 (2.1%) in a non-firearm IPH with PO and 3,416 (40.7%) in a non-firearm IPH without PO. Based on review of incident narratives, 5.4% (n=451) of incidents involved a previously-granted or sought PO, and none of which had explicitly mentioned firearm removal as a part of the PO. The majority of victims were killed with a firearm. Prior literature suggests that POs with firearm removal may be effective strategies for reducing risk of IPH, but we found no documentation in the narratives that firearm removal was a condition in the POs identified. As very few IPH narratives included documentation of a PO, it is likely that ascertainment of PO status is incomplete and could be an area for improvement in NVDRS data collection efforts.

Assessing the Magnitude of Nonworker Deaths During Workplace Homicide Incidents: An Epidemiological Analysis Using the National Violent Death Reporting System (NVDRS).

Recent workplace homicide investigations have noted that the Census of Fatal Occupational Injuries (CFOI) has several limitations that reduce our ability to understand who dies as part of a workplace homicide incident. We sought to assess the magnitude of nonworker deaths associated with workplace homicide incidents. Using National Violent Death Reporting System (NVDRS) data from 2003 to 2017, we employed a descriptive epidemiological investigation. The counts of worker and nonworker deaths during a workplace homicide incident were ascertained, as well as other characteristics (e.g., gender, age, mechanism of death, and race/ethnicity). We used multiple logistic regression to estimate the relationship between incident characteristics and the odds of having a nonworker death. Across the study period, there were 2,020 workplace homicides. The number of deaths associated with workplace homicide incidents increased 8.2% when considering nonworker deaths (n = 2,186). Including those nonfatally shot as part of a workplace homicide incident increased causalities by 18.2% (n = 2,388). If a firearm was used during perpetration, the odds that a nonworker was killed during a workplace homicide incident increased 3.76 times (95% confidence interval: 2.03, 6.96). Considering nonworkers killed as part of workplace homicide incidents is essential to understanding the true magnitude of violence associated with these incidents. Likely, it is the lethality of firearms that greatly increases the likelihood that nonworkers are killed as part a workplace homicide incident. To best understand the epidemiology of workplace homicide incident, we recommend CFOI adopt an incident-based method for coding workplace deaths.

Factors Influencing US Physician and Surgeon Suicide Rates 2003 to 2017: Analysis of the CDC-National Violent Death Reporting System.

With the rate of physician suicide increasing, more research is needed to implement adequate prevention interventions. This study aims to identify trends and patterns in physician/surgeon suicide and the key factors influencing physician suicide. We hope such information can highlight areas for targeted interventions to decrease physician suicide. Review of Centers for Disease Control and Preventions National Violent Death Reporting System (NVDRS) for 2003 to 2017 of physician and dentists dying by suicide. Twenty-eight medical, surgical, and dental specialties were included. Nine hundred five reported suicides were reviewed. Physician suicides increased from 2003 to 2017. Majority surgeons' suicides were middle-aged, White males. Orthopedic surgeons had the highest prevalence of suicide among surgical fields (28.2%). Black/African American surgeons were 56% less likely [odds ratio (OR) = 0.44, 95% confidence interval (CI): 0.06-3.16] and Asian/Pacific Islander were 438% more likely (OR = 5.38, 95% CI: 2.13-13.56) to die by suicide. Surgeons were 362% more likely to have a history of a mental disorder (OR = 4.62, 95% CI: 2.71-7.85), were 139% more likely to use alcohol (OR = 2.39, 95% CI: 1.36-4.21), and were 289% more likely to have experienced civil/legal issues (OR = 3.89, 95% CI: 1.36-11.11). The prevalence of physician suicide increased over the 2003 to 2017 time-frame with over a third of deaths occurring from 2015 to 2017. Among surgeons, orthopedics has the highest prevalence of reported suicide.Risk factors for surgeon suicide include Asian/Pacific Islander race/ethnicity, older age, history of mental disorder, alcohol use, and civil/legal issues.