title: Public Mass Shooters and Firearms: A Cross-National Study of 171 Countries.
abstract: OBJECTIVE
  Model the global distribution of public mass shooters around the world.
  
  
  METHODS
  Negative binomial regression is used to test the effects of homicide rates, suicide rates, firearm ownership rates, and several control variables on public mass shooters per country from 1966 to 2012.
  
  
  RESULTS
  The global distribution of public mass shooters appears partially attributable to cross-national differences in firearms availability but not associated with cross-national homicide or suicide rates.
  
  
  CONCLUSIONS
  The United States and other nations with high firearm ownership rates may be particularly susceptible to future public mass shootings, even if they are relatively peaceful or mentally healthy according to other national indicators.
authors.affiliation: The University of Alabama, USA.
authors.forename: Adam
authors.initials: A
authors.lastname: Lankford
mesh_terms: D040343:Behavioral Risk Factor Surveillance System; D003415:Crime / Q000706:statistics & numerical data*; D005389:Firearms / Q000706:statistics & numerical data*; D014943:Global Health; D006708:Homicide / Q000706:statistics & numerical data*; D006801:Humans; D035846:Law Enforcement; D011634:Public Health; D014481:United States; D014948:Wounds, Gunshot / Q000453:epidemiology*