Three out of the 13 New Hampshire hospitals to receive a safety grade from the Leapfrog Group earned an A, according to the nonprofit's Spring 2019 ratings released Wednesday. That was good news for only 23 percent of hospitals graded - a slight increase from 30 percent in the 2018 Fall ratings.

The nonprofit group found that of the more than 2,600 hospitals graded in the country, 32 percent earned an A grade, findings that were unchanged from the group's last round of rankings released in Fall 2018.

There were five B grades and five C grades handed out by Leapfrog. No New Hampshire hospital received lower than a C.

Check out the full ratings here . Click a hospital below to get more detailed safety grades for each hospital.

The Leapfrog Group explains that its rating system is focused entirely on errors, accidents, injuries and infections. The hospital safety grades are released by the nonprofit group twice a year, in the spring and in the fall.

Concord Hospital

Exeter Hospital

Lakes Region General Hospital, Laconia

St. Joseph Hospital of Nashua

C Grades

Catholic Medical Center, Manchester

Dartmouth-Hitchcock Medical Center, Lebanon

Elliot Hospital, Manchester

Frisbie Memorial Hospital, Rochester

Southern New Hampshire Medical Center, Nashua

Oregon, Virginia, Maine, Massachusetts and Virginia had the highest percentage of hospitals that received an A grade. Four states — Wyoming, Arkansas, Delaware, North Dakota — and the District of Columbia did not have a single hospital that received an A grade.



For this round of rankings, the Leapfrog Group's research found that patients at hospitals that receive D or F grades face a 92 percent greater risk of avoidable death compared to A hospitals. At C and B hospitals, patients on average face an 88 percent and a 35 percent greater risk respectively.

The group estimates that if the risk at all hospitals was equivalent to what it is at "A" hospitals, 50,000 lives would have been saved. Overall, the researchers estimate that 160,000 lives are lost every year due to avoidable medical errors. That figure is down from 2016, when the Leapfrog Group estimated there were 205,000 avoidable deaths.

"The good news is that tens of thousands of lives have been saved because of progress on patient safety. The bad news is that there's still a lot of needless death and harm in American hospitals," Leah Binder, president and CEO of the Leapfrog Group, said in a press release. "Hospitals don't all have the same track record, so it really matters which hospital people choose, which is the purpose of our Hospital Safety Grade."

Leapfrog assigns A, B ,C , D and F letter grades to general acute-care hospitals in the United States. Leapfrog explains that the safety grade includes 28 measures that are taken together to "produce a single letter grade representing a hospital's overall performance in keeping patients safe from preventable harm and medical errors." The group uses performance measures from a variety of sources, including the Centers for Medicare & Medicaid Services, the Leapfrog Hospital Survey and the Centers for Disease Control and Prevention. (You can read more about the letter grades here.)