More guns in cities means more gun suicide, more total suicide

An article in Injury Prevention by Matthew Miller and other HICRC researchers finds that across metropolitan areas, higher rates of firearm ownership are strongly associated with higher rates of firearm suicide and overall suicide, but not with non-firearm suicide.  Prior ecological studies had usually focused on states and regions–also supporting the more guns-more suicide hypothesis.  Results are consistent with the dozen or more case control studies that find a gun in the home is a risk factor for suicide.