Article Figures & Data
Figures
- Figure 1.
Interaction between gun use and victim–offender relationship on incidence of multiple victim homicides, United States, 1976–2016. IRR, incidence rate ratio.
- Figure 2.
Interaction between gun use and perpetrator sex on incidence of multiple victim homicides, stratified by victim–offender relationship, United States, 1976–2016.
Tables
- Table 1
Demographic Characteristics of Homicide Perpetrators by Domestic Status and Firearm Use
Total Homicide Domestic Homicide Nondomestic Homicide All-Cause Gun Non-Gun All-Cause Gun Non-Gun All-Cause Gun Non-Gun Age, y < 18 7.8 8.5 6.4 4.4 4.6 4.2 9.0 9.7 7.5 18–24 32.1 34.0 28.7 19.3 17.2 21.8 36.8 39.0 32.2 25–34 30.0 28.7 32.4 29.5 27.4 32.1 30.2 29.0 32.6 35–49 20.6 19.1 23.4 29.5 30.2 28.6 17.4 15.9 20.7 50+ 9.5 9.7 9.1 17.3 20.6 13.3 6.6 6.5 6.9 Sex Male 89.1 91.2 85.4 73.7 75.5 71.6 94.7 95.8 92.6 Female 10.9 8.8 14.6 26.3 24.5 28.4 5.3 4.2 7.4 Race White 45.8 42.5 51.9 56.1 57.7 54.2 42.1 38.1 50.7 Black 51.5 55.3 44.7 40.8 39.9 42.0 55.4 59.8 46.0 Other 2.6 2.2 3.4 3.1 2.4 3.8 2.5 2.1 3.2 All values are percentages.
- Table 2
Incidence of Multiple Homicide Victims by Firearm Use and Victim–Offender Relationship, United States, 1976–2016
Total Sample % Gun Use % Multiple Victim Homicides IRR (95% CI) P All Means Gun Non-Gun Total homicides 64.3 3.6 4.2 2.7 1.427 (1.246–1.636) < .001 Domestic homicides 54.1 4.6 5.8 3.3 1.709 (1.553–1.879) < .001 Intimate partner homicides 58.4 2.8 1.7 3.7 2.110 (1.913–2.328) < .001 Family homicides 47.8 7.3 9.6 5.2 1.748 (1.540–1.985) < .001 Nondomestic homicides 67.9 3.3 3.7 2.3 1.387 (1.165–1.652) < .001 Friend/acquaintance homicides 66.8 3.2 3.7 2.3 1.453 (1.251–1.687) < .001 Stranger homicides 70.1 3.3 3.7 2.5 1.270 (0.991–1.628) .06 Male Perpetrators % Gun Use % Multiple Victim Homicides IRR (95% CI) P All Means Gun Non-Gun Total homicides 64.0 3.8 4.4 2.8 1.460 (1.268–1.681) < .001 Domestic homicides 57.1 5.4 6.9 3.6 1.885 (1.706–2.084) < .001 Intimate partner homicides 61.2 3.7 4.9 2.1 2.228 (1.975–2.513) < .001 Family homicides 51.7 7.6 9.7 5.3 1.995 (1.741–2.285) < .001 Nondomestic homicides 66.6 3.4 3.8 2.4 1.470 (1.252–1.726) < .001 Friend/acquaintance homicides 65.4 3.3 3.8 2.4 1.571 (1.371–1.801) < .001 Stranger homicides 69.3 3.4 3.7 2.5 1.273 (1.003–1.616) .05 Female Perpetrators % Gun Use % Multiple Victim Homicides IRR (95% CI) P All Means Gun Non-Gun Total homicides 47.5 2.2 2.2 2.2 0.913 (0.769–1.085) .30 Domestic homicides 48.2 2.4 2.4 2.5 0.884 (0.712–1.097) .26 Intimate partner homicides 59.4 0.9 1.0 0.6 2.470 (1.400–4.356) .002 Family homicides 23.2 6.0 9.0 4.9 1.968 (1.559–2.485) < .001 Nondomestic homicides 46.0 1.8 2.0 1.6 0.757 (0.540–1.062) .11 Friend/acquaintance homicides 45.6 1.7 1.8 1.5 0.757 (0.529–1.082) .13 Stranger homicides 50.4 2.7 2.8 2.4 0.822 (0.493–1.370) .45 Incidence rate ratio (IRR) models show incidence of multiple victims with guns (1) versus without (0) guns and include fixed effects for year. Errors are adjusted for clustering within states, and are controlled for region and level of urban classification.
