Related Experiment Video
Updated: Jun 5, 2026

Inverse Probability of Treatment Weighting (Propensity Score) using the Military Health System Data Repository and National Death Index
Published on: January 8, 2020
Homicide patterns in the United States: National violent death reporting system, 2018 - 2023
Keisha T Lindsay1, Bridget H Lyons2, Janet M Blair2
1Epidemic Intelligence Service, Centers for Disease Control and Prevention, Atlanta, GA, USA; Division of Violence Prevention, National Center for Injury Prevention and Control, Centers for Disease Control and Prevention, Atlanta, GA, USA.
Purpose:
In the United States, homicides continue to be a public health problem. Overall, U.S. homicide rates have fluctuated in recent years, but little research has examined patterns and variation across homicide types. This analysis describes characteristics of single-, multiple- (2-3 victims), and mass homicides (≥4 victims) in order to help inform prevention strategies.
Methods:
Data from the National Violent Death Reporting System from 2018 to 2023 were analyzed to describe single and multi-victim homicides, to examine patterns across homicide types. The system uses information from death certificates, coroner/medical examiner reports, and law enforcement reports to provide a complete picture of violent deaths.
Results:
Single- and multi-victim homicides disproportionately affected young non-Hispanic (NH) Black males, particularly those aged 18-34. The highest proportion of mass homicide victims were NH White. Intimate partner and family relationship problems often precipitate mass homicides. Arguments and other precipitating crimes are commonly associated with all three types of homicide. Mass homicide victims were often killed by family members or strangers.
Conclusions:
These findings can help inform the development of strategies to prevent homicide. Implementing violence prevention strategies, including addressing risk factors, can help prevent or mitigate the effects of single-, multi-, and mass homicides.
Related Concept Videos
Prevalence and Incidence
Prevalence indicates the proportion of individuals in a population who have a specific disease or health condition at a...
Statistical Methods for Analyzing Epidemiological Data
Investigation of Disease Outbreaks
Applications of Life Tables
Overview of Cell Death
Cell death was observed in the early 19th century, but there was no experimental evidence to prove it. In 1842, Carl Vogt first discovered cell death in a metamorphic toad; however, it was not termed ‘cell death.’ Scientists discovered different cell death pathways only in the 20th century...
Types of Reports II: Incident or Occurrence Report
Purposes:
In the healthcare industry, reports play a crucial role in documenting incidents within an agency. The primary objective of these reports is to ensure patient safety, uphold the...