(Thomson Reuters: Ann Arbor, MI) -- Thomson Reuters has released its fourth annual study identifying the top U.S. health systems based on balanced, systemwide clinical performance.

The study culled data from more than 300 organizations and singled out 15 hospital systems that achieved superior clinical outcomes based on a composite score of eight measures of quality, patient perception of care, and efficiency.

“This year we are seeing stronger systemwide performance and increased rates of improvement, particularly among the 15 Top Health Systems award winners,” says Jean Chenoweth, senior vice president for performance improvement and the 100 Top Hospitals program at Thomson Reuters. “Health system performance is beginning to reflect aspirations to provide more consistent outcomes across communities served. Health care reform appears to have stimulated the increased rate of improvement at the system level.”

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