Table 3

Proportion of deaths preventable by at least one safety device, by selected variable categories, and results of χ2 tests of independence for each category

VariablePercent preventablep Value for χ2*
*For each of the variables (age, type of gun, circumstance), the χ2 tests the null hypothesis that the proportion of preventable firearm related deaths across the appropriate subcategories (that is, the different age, type of gun, and circumstance groupings) is the same.
Age (years)<0.001
Type of gun<0.001
    Long gun8
    Playing with/showing gun to others80
    Thought safety was on/problem with safety50