“…Data available at the OECD website, http://www.oecdbetterlifeindex.org/topics/safety/ (accessed August 28, 2014 (28). Many studies, only a few of which are cited here, have found associations between firearm ownership and firearm homicide or suicide whether measured at the population level (17, 44-46, 51, 52), the household level (6,24,36,37), or the individual level (69). This association is strong enough that it interferes with efforts to quantify the effect of firearm violence prevention policies (65).…”