Homicide-followed-by-suicide (referred to as "homicide-suicide") incidents are rare events but can have a profound impact on families and communities. A better understanding of perpetrator characteristics and how they compare with those of other homicide suspects and suicide decedents might provide insight into the nature of these violent acts. This report is based on 2003-2005 data from 17 US states participating in the National Violent Death Reporting System, a unique, incident-based, active surveillance system that integrates data on violent deaths from multiple sources. Of the 408 homicide-suicide incidents identified, most incidents were committed with a firearm (88.2%) and perpetrated by males (91.4%), those over 19 years of age (97.6%), and those of white race (77.0%); however, just over half of filicide (killing of children)-suicides (51.5%) were perpetrated by females. Over 55% of male homicide-suicide perpetrators versus 26.4% of other male suicide decedents had prior intimate partner conflicts (P < 0.001). In fact, having a history of intimate partner conflicts was even common among homicide-suicide perpetrators who did not victimize their intimate partners. Recognition of the link between intimate partner conflicts and homicide-suicide incidents and strategies involving collaboration among the court/legal and mental health systems might prevent these incidents.
Most suicide decedents could be classified by patterns of risk factors. Furthermore, most classes revealed a need for more connected services across medical, mental health/substance abuse, and court/social service systems. Reducing fragmentation across these agencies and recruiting family, friend, and community support for individuals experiencing mental health problems and/or other stress might significantly reduce suicides.
Objective:To calculate the prevalence of substance abuse and mental illness among suicide victims of different racial/ethnic groups and to identify race/ethnicity trends in mental health and substance abuse that may be used to improve suicide prevention.Methods:Data are from the National Violent Death Reporting System (NVDRS), a state-based data integration system that, for 2004, includes data from 13 US states. The NVDRS integrates medical examiner, toxicology, death certificate, and law enforcement data.Results:Within participating states, for data year 2004, 6865 suicide incidents in which race/ethnicity are known were identified. This included 5797 (84.4%) non-Hispanic whites, 501 (7.3%) non-Hispanic blacks, 257 (3.7%) Hispanics, and 310 (4.5%) persons from other racial/ethnic groups. At the time of the suicide event, non-Hispanic blacks had lower blood alcohol contents than other groups. Non-Hispanic whites had less cocaine but more antidepressants and opiates. There were no differences in the levels of amphetamines or marijuana by race/ethnicity. Hispanics were less likely to have been diagnosed with a mental illness or to have received treatment, although family reports of depression were comparable to non-Hispanic whites and other racial/ethnic groups. Non-Hispanic whites were more likely to be diagnosed with depression or bipolar disorder and non-Hispanic blacks with schizophrenia. Comorbid substance abuse and mental health problems were more likely among non-Hispanic whites and non-Hispanic blacks, while Hispanics were more likely to have a substance abuse problem without comorbid mental health problems.Conclusion:The results support earlier research documenting differences in race/ethnicity, substance abuse, and mental health problems as they relate to completed suicide. The data suggest that suicide prevention efforts must address not only substance abuse and mental health problems in general, but the unique personal, family, and social characteristics of different racial/ethnic groups.
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