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Table 8 Linear regression model with Prais-Winsten estimator describing the relationship between a state’s total number of firearm laws and number of other states for which it is the source of 100 or more crime-related firearms in a given year, adjusting for state-level characteristics, 2010–2017

From: Firearm laws and the network of firearm movement among US states

Variable b (95% CI)
Intercept −0.004 (−0.58, 0.57)
Year 0.08 (0.05, 0.10)***
Poverty rate 0.05 (−0.01, 0.11)
Density −0.12 (−0.26, 0.06)
Area 0.70 (0.37, 1.02)***
Firearm ownership −0.05 (−0.12, 0.01)***
Number of laws −0.21 (−0.42, 0.00)*
Census division
 New England ref
 Mid-Atlantic 1.41 (0.52, 2.31)**
 East North Central 0.75 (0.12, 1.39)*
 West North Central −0.02 (−0.71, 0.67)
 South Atlantic 1.50 (0.89, 2.11)***
 East South Central 1.02 (0.37, 1.68)**
 West South Central 0.30 (−0.42, 1.02)
 Mountain −0.42 (−1.08, 0.25)
 Pacific 0.66 (−0.11, 1.44)
  1. * p < 0.05, ** p < 0.01, *** p < 0.001