"Very few of the existing state gun-control laws actually reduce gun deaths, highlighting the importance of focusing on relevant and effective gun legislation," says Bindu Kaesan. "Background checks for all people buying guns and ammunition, including private sales, are the most effective laws we have to reduce the number of gun deaths in the United States." (Credit: K.G.23/Flickr)

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These 3 laws might reduce U.S. gun deaths by 80%

More than 90 people are killed by guns every day in the United States. In 2013, there were 33,636 gun deaths in the US. Civilians own approximately 270 million guns, roughly one “for every man, woman, and child,” as President Obama noted in an address to the nation in the wake of the shooting rampage at an Oregon community college last October that left 10 dead.

A nationwide study that shows just 9 of 25 state gun laws are effective in reducing firearm deaths, suggests that if three laws implemented in some states were adopted nationwide, they could reduce gun deaths by more than 80 percent.

Laws requiring firearm identification through ballistic imprinting or microstamping were found to reduce the projected mortality risk by 84 percent, ammunition background checks reduced it by 82 percent, and universal background checks for all gun purchases reduced it by 61 percent.

Federal implementation of all three laws was projected to reduce the national firearm death rate—10.1 per 100,000 people in 2010—to 0.16 per 100,000, according to the study, which used data from 2010.

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“Very few of the existing state-specific firearms laws are associated with reduced mortality, and this evidence underscores the importance of focusing on relevant and effective firearms legislation,” says study senior author Sandro Galea, dean of the School of Public Health at Boston University. “Implementing universal background checks for the purchase of firearms or ammunition and firearm identification nationally could substantially reduce mortality in the United States.”

The study is the first to assess a broad array of gun laws and other relevant state-level data, says lead author Bindu Kalesan, a research associate at the School of Medicine.

“The findings suggest that very few of the existing state gun-control laws actually reduce gun deaths, highlighting the importance of focusing on relevant and effective gun legislation,” she says. “Background checks for all people buying guns and ammunition, including private sales, are the most effective laws we have to reduce the number of gun deaths in the United States.”

For the study, published in the Lancet, researchers constructed a state-level dataset using counts of firearm-related deaths in each state in 2010, information on 25 state laws implemented in 2009, and state-specific characteristics that included gun ownership rates, nonfirearm homicide rates, and unemployment rates. Of the 25 laws, 9 were associated with reductions in mortality, while 9 others—such as the so-called “stand your ground” laws, allowing individuals to use deadly force in self-defense when faced with a perceived threat—were associated with increased mortality; 7 other laws were found to have no correlation with gun-related death rates.

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The researchers used a statistical model to determine the independent association of various firearms laws with gun-related homicides, suicides, and overall deaths. They also projected the potential reduction of mortality rates if the three most effective firearms laws were enacted at the federal level.

Laws requiring background checks for both guns and ammunition were the most effective legislation identified in the study, showing the protective effect of state laws that close loopholes in the federal Brady Law, which requires criminal background checks only for guns sold through licensed firearms dealers.

Only seven states had universal background checks in 2010, while just three states had firearm identification laws that require ballistics identification or microstamping of guns that leave markings on the cartridge cases they expel when fired, making it possible to link the cases to particular guns.

The authors note that their findings corroborated an earlier, smaller state-level study that found local background checks were associated with a 22 percent lower homicide rate.

In 2010, 31,672 gun deaths were recorded, equivalent to 10.1 deaths per 100,000 people. Analyzed by state, Hawaii had the lowest rate (3.31 per 100,000), and Alaska had the highest rate (20.3 per 100,000).

The link between state levels of gun ownership and gun deaths has been well established, but less is known about the effectiveness of existing gun laws. The states have introduced a broad range of laws to strengthen or deregulate the Brady Law. However, about 40 percent of all gun sales are estimated to be private transactions (thus not covered by the Brady Law) that do not require background checks.

Researchers from Columbia University and the University of Bern are coauthors of the study.

Source: Boston University

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