According to the federal data released Thursday, the national average for hospitalization stays from opioid misuse stood at 225 per 100,000 people in 2014. That's up from 137 per 100,000 people in 2005.
A number of places had hospitalization stay rates that exceeded 300 per 100,000 people: Maryland, the District of Columbia, New York, Rhode Island, Massachusetts and West Virginia.
The states of Texas, Nebraska and Iowa had the lowest rates, of 70.9, 46.1 and 44.2 per 100,000, respectively.
The biggest increases in inpatient stays were seen in Oregon, which had an almost 89 percent rise from 2009 through 2014. It was followed by North Carolina, where there was a nearly 82 percent jump, and South Dakota, where hospitalizations climbed by more than 74 percent, according to AHRQ.
Nationally, the average rate of emergency department visits stood at 177.7 per 100,000 people in 2014. In comparison, in 2005 that rate was 89.1 per 100,000.
Massachusetts as of 2014 had — by a very large margin — the biggest rate of opioid-related hospital visits: 441.6 per 100,000 people.
It was followed by Rhode Island, with 288.6 emergency visits per 100,000 people. Maryland and Ohio were close behind that rate.
Ohio saw the biggest increases in emergency department visits from 2009 through 2014 — 119.1 percent.
South Dakota had a 106.4 percent increase in ED visits from opioids during the same time period, followed by Minnesota at 102.3 percent.