Table 3.
Characteristics of adolescents aged 18 to 20 years in intervention and comparison states, 2002-14. Values are numbers (percentages) unless stated otherwise
| Characteristics | Person years in intervention states (n=7 197 257) | Person years in 46 comparison states (n=161 736 784) | P value | ||
|---|---|---|---|---|---|
| Race: | |||||
| White | 5 549 361 (77.1) | 123 976 436 (76.7) | <0.001 | ||
| Black | 1 462 380 (20.3) | 26 044 785 (16.1) | <0.001 | ||
| Native American | 54 867 (0.8) | 2 775 827 (1.7) | <0.001 | ||
| Asian/Pacific Islander | 130 649 (1.8) | 8 939 736 (5.5) | <0.001 | ||
| Population density (people/square mile) | 76 | 170 | <0.001 | ||
| Household firearm ownership (50 states) | 52.9 | 38.4 | <0.001 |
1 square mile=2.6 square kilometers.
West Virginia and Wyoming were outliers for some demographic characteristics. The population density in Wyoming was 5 per square mile. Household firearm ownership was 66% in Wyoming and 59% in West Virginia, whereas household firearm ownership was 43% in South Carolina and 44% in Missouri.