Background

Firearms kill over 130 Americans daily. Most deaths are the result of intentional acts, but in 2021, 549 deaths (1.5 deaths/day) were unintentional. Strategies to prevent unintentional versus intentional firearms deaths differ. This study describes unintentional firearm-related mortality across the US states and within individual states between 2001 and 2021 and considers factors that might explain disparities across states.

Methods

Unintentional firearms mortality from 2001 to 2021, both for the full country and by state, was obtained online along with data for five state-level predictors: rurality, non-white population, poverty, population and gun ownership.

Results

The highest unintentional firearm-related mortality rates clustered in Southeastern states, followed by states in the Northern Plains and Mountain West. The lowest rates were in the Northeast, followed by scattered states in the West and Midwest. At the state level, unintentional firearms mortality correlated positively with per cent below the poverty level (r=0.54, p<0.01), rural (r=0.59, p<0.01) and owning firearms (r=0.72, p<0.01). In a multivariable regression model predicting unintentional firearms mortality by state, three factors emerged as significant: per cent white (β=–0.22, p<0.05), below the poverty level (β=0.43, p<0.01) and owning firearms (β=0.54, p<0.01).

Conclusions

Large disparities exist across the 50 US states in unintentional firearms mortality. Crude rates in the most afflicted states are ~10 times those in the least afflicted states. Nationwide, over 12 000 lives were lost to unintentional firearms mortality between 2001 and 2021. Factors that create disparities are multifaceted and include rurality, poverty and firearms ownership.