Most of this research—and there have been several dozen peer-reviewed studies—punctures the idea that guns stop violence. In a 2015 study using data from the FBI and the Centers for Disease Control and Prevention, for example, researchers at Boston Children’s Hospital and Harvard University reported that firearm assaults were 6.8 times more common in the states with the most guns versus those with the least. Also in 2015 a combined analysis of 15 different studies found that people who had access to firearms at home were nearly twice as likely to be murdered as people who did not…
More than 30 peer-reviewed studies, focusing on individuals as well as populations, have been published that confirm what Kellermann’s studies suggested: that guns are associated with an increased risk for violence and homicide. “There is really uniform data to support the statement that access to firearms is associated with an increased risk of firearm-related death and injury,” Wintemute concludes. Gun advocates argue the causes are reversed: surges in violent crime lead people to buy guns, and weapons do not create the surge. But if that were true, gun purchases would increase in tandem with all kinds of violence. In reality, they do not.
Chaser: Congress has been strangling the CDC for years, preventing these types of studies from coming out.