Women are 5 times more likely to be killed by abusers when there is a gun in the home. J.C. Campbell, S.W. Webster, J.Koziol-McLain, et al., “Risk factors for femicide within physically abuse intimate relationships: results from a multi-state case control study,” 93 Amer. J. of Public Health 1089-97 (2003).
For every time a gun in the home is used in self-defense, there are 7 criminal assaults or homicides, 4 accidental shootings, and 11 attempted or completed suicides. Kellermann, Arthur L.MD, MPH, et al. “Injuries and Deaths Due to Firearms in the Home.” Journal of Trauma, Injury, Infection, and Critical Care 45 (1998): 263-67; see also http://smartgunlaws.org/dangers-of-gun-use-for-self-defense-statistics/.
Every year in the U.S. there are about 30,000 car accident deaths and 30,000 gun deaths. Until recently, car accident deaths edged out gun deaths, but research reveals that in several states, including PA, gun deaths are overtaking deaths by automobile. http://www.vpc.org/studies/gunsvscars15.pdf.