States with the strongest gun laws have fewer gun-related suicides and
murders, a new study suggests.
In the study, researchers analysed US Centers for Disease Control and
Prevention statistics on deaths between 2007 and 2010. They also looked at five
categories of gun laws in all 50 states to create a gun law "strength score" for
each state. The highest possible score was 28.
Over the four-year study period, there were more than 121 000 gun deaths in
the United States. Average gun-related death rates ranged from a high of 17.9
per 100 000 people in Louisiana to a low of 2.9 per 100,000 in Hawaii. State gun
law strength scores ranged from zero in Utah to 24 in Massachusetts.
States with the highest gun law strength scores (nine or higher) had a lower
overall gun-related death rate - 6.4 fewer deaths per 100 000 - than those with
the lowest scores (two or lower).
The study also found that states with the strongest gun laws had a lower rate
of gun-related suicides (6.3 fewer deaths per 100 000) and a lower rate of
gun-related deaths (0.4 fewer deaths per 100 000) than states with the weakest
"In conclusion, we found an association between the legislative strength of a
state's firearm laws - as measured by a higher number of laws - and a lower rate
of firearm fatalities," Dr Eric Fleegler, of Boston Children's Hospital, and
colleagues said in a JAMA news release.
More research needed
"The association was significant for firearm fatalities overall and for
firearm suicide and firearm homicide deaths, individually. As our study could
not determine a cause-and-effect relationship, further studies are necessary to
define the nature of this association."
In an accompanying editorial, Dr Garen Wintemute, of the University of
California, Davis, said this would be an important study "if it were robust and
if its meaning were clear".
He said the study provides "no firm guidance".
"Do the laws work or not? If so, which ones?" he said. "Should policymakers
enact the entire package? Some part? Which part?"
Wintemute called for improvements in the way research into gun violence is
conducted, including better data and better data systems.
"To prevent firearm violence, our research efforts must be substantial and
sustained," he wrote.
More than 30 000 people die each year in the United States from gun-related