Table 1.

Association between excess handguns (per 1,000 population) acquired during the 11 week period following the 2012 election and Sandy Hook and firearm violence rates (per 1,000 Population)

outcome window	all firearm violence	firearm injury	firearm mortality	machinery injury (falsification test)	bicycle injury (falsification test)	motor vehicle injury (falsification test)
Poisson Regression Risk Ratios †
12 Month	1.033	1.044 *	0.993	1.014	0.956	0.988
	(0.997, 1.070)	(1.000, 1.089)	(0.932, 1.058)	(0.998, 1.031)	(0.897, 1.019))	(0.954, 1.023)

* P ≤ 0.05

^† Results for injury and mortality by type and for shorter time windows are included in the Additional file 1