Objective To evaluate the association between US state policies that establish age 18 or 21 years as the minimum purchaser age for the sale of handguns and adolescent suicide rate. Design Regression discontinuity and difference-in-differences analyses. ...
Congress passed the first federal legislation on firearms safety in decades at nearly the same moment that the Supreme Court issued its first major Second Amendment decision since 2008. It will take time to assess the effects of these actions on both gun safety and...
