Prescription opioid disorders related to non-medical use increased by 0.3 percentage points among U.S. adults between 2003 and 2013, while related deaths increased by 3.3 per 100,000, according to a study in today’s Journal of the American Medical Association. However, the share of adults using prescription opioids for nonmedical purposes decreased by 0.5 percentage points. According to a second study in the journal, only one in five people with opioid use disorders related to heroin or opioid analgesics reported receiving treatment in 2013, about the same rate as in 2004.