CHICAGO – States with the most gun control laws have the fewest gun-related deaths, according to a study that suggests sheer quantity of measures might make a difference.

But the research leaves many questions unanswered and won’t settle the debate over how policymakers should respond to recent high-profile acts of gun violence.

In the dozen or so states with the most gun control-related laws, far fewer people were shot to death or killed themselves with guns than in the states with the fewest laws, the study found. Overall, states with the most laws had a 42 percent lower gun death rate than states with the least number of laws.