@article{ref1,
title="Firearm laws and the network of firearm movement among US states",
journal="BMC public health",
year="2021",
author="Takada, Sae and Choi, Kristen R. and Natsui, Shaw and Saadi, Altaf and Buchbinder, Liza and Easterlin, Molly and Zimmerman, Frederick J.",
volume="21",
number="1",
pages="e1803-e1803",
abstract="BACKGROUND: The movement of firearm across state lines may decrease the effectiveness of state-level firearm laws. Yet, how state-level firearm policies affect cross-state movement have not yet been widely explored. This study aims to characterize the interstate movement of firearms and its relationship with state-level firearm policies. <br><br>METHODS: We analyzed the network of interstate firearm movement using Bureau of Alcohol, Tobacco, Firearms, and Explosives firearm trace data (2010-2017). We constructed the network of firearm movement between 50 states. We used zero-inflated negative binomial regression to estimate the relationship between the number of a state's firearm laws and number of states for which it was the source of 100 or more firearms, adjusting for state characteristics. We used a similar model to examine the relationship between firearm laws and the number of states for which a given state was the destination of 100 or more firearms. <br><br>RESULTS: Over the 8-year period, states had an average of 26 (Standard Deviation [SD] 25.2) firearm laws. On average, a state was the source of 100 or more crime-related firearms for 2.2 (SD 2.7) states and was the destination of 100 or more crime-related firearms for 2.2 (SD 3.4) states. Greater number of firearm laws was associated with states being the source of 100 or more firearms to fewer states (Incidence Rate Ratio [IRR] 0.58 per SD, p < 0.001) and being the destination of 100 or more firearms from more states (IRR1.73 per SD, p < 0.001). <br><br>CONCLUSIONS: Restrictive state-level firearm policies are associated with less movement of firearms to other states, but with more movement of firearms from outside states. The effectiveness of state-level firearm-restricting laws is complicated by a network of interstate firearm movement.<p /> <p>Language: en</p>",
language="en",
issn="1471-2458",
doi="10.1186/s12889-021-11772-y",
url="http://dx.doi.org/10.1186/s12889-021-11772-y"
}