NEW YORK — A new study found the use of heroin by adults in Minnesota rose nearly 20% over the last decade.
The study was conducted by researchers at the University of Minnesota and the National Institute on Drug Abuse.
The findings, which were released Friday, were based on data from the Centers for Disease Control and Prevention, the University Health Network and the Centers of Disease Control-United States.
The study included 1,500 adults aged 18 and older in Minnesota between 2001 and 2013.
The majority of the increase was in the use and supply of prescription painkillers, heroin and cocaine, which had risen in Minnesota by more than 60% in the decade, according to the study.
The study said the heroin-related deaths also increased dramatically.
About one-third of all heroin users in Minnesota were ages 18 to 24, up from 28% in 2001.
They also used cocaine, a drug that was the primary drug of abuse for about 10% of the adults in the state.
There were 1,600 deaths in Minnesota from overdoses of prescription drugs in the 10-year period.
About 7% of all overdose deaths in the country in 2012 were linked to prescription drugs, according the study, published in the journal Drug and Alcohol Dependence.
More: The study did not look at heroin overdoses because of concerns about the impact on children and teens, the report said.