Originally Posted By: Bingley

Here's a paragraph that addresses your concern:

Quote:
The researchers found no statistical difference in the outcome (no injury, injury or fatality) when they compared those who used their gun in an aggressive encounter (229 instances) to those who had firearms but did not use them (40 instances).

I'm wondering whether that addressed the following potential issue: maybe the 40 instances in which no firearm was used were less aggressive than the instances where a firearm was used.