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Table 2 Gun homicide rates as a function of the number of federal firearms licensees in U.S. counties

From: Homicide and geographic access to gun dealers in the United States

  Incident rate ratio SE P-value 95% CI
FFLs 0.98 0.027 0.482 0.93, 1.04
FFLs in surrounding counties 1.03 0.009 0.001 1.01, 1.05
Year 0.96 0.009 0.000 0.95, 0.98
% poverty 1.05 0.004 0.000 1.05, 1.06
% married 1.04 0.005 0.000 1.03, 1.05
% college educated 1.00 0.003 0.699 0.99, 1.01
% African American 1.03 0.001 0.000 1.03, 1.03
% Native American 1.01 0.003 0.006 1.00, 1.01
% Hispanic 1.01 0.002 0.000 1.00, 1.01
% 15–24 years old 0.95 0.432 0.913 0.39, 2.32
% male 1.02 0.009 0.075 1.00, 1.03
% living alone 1.02 0.006 0.000 1.01, 1.04
% of arrests that were drug related 1.02 0.003 0.000 1.01, 1.02
Drug arrest jurisdiction adjustment 0.92 0.037 0.030 0.85, 0.99
Hospital beds 1.00 0.000 0.000 1.00, 1.00
Average per capita income 1.00 0.000 0.096 1.00, 1.00
Unemployment rate 1.01 0.006 0.331 0.99, 1.02
Leniency of state gun laws 1.01 0.001 0.000 1.01, 1.01
Major cities 1.97 0.226 0.000 1.57, 2.46
Other cities 1.39 0.117 0.000 1.17, 1.63
Suburbs 1.27 0.045 0.000 1.19, 1.37
   Small towns (reference) --    
  1. Results of generalized linear negative binomial regression.
  2. SE denotes standard error.
  3. CI denotes confidence interval.