QHS represents 28 hospitals in Wisconsin, Michigan's Upper Peninsula and northern Illinois, 4,000 affiliated physicians and combined net revenue of nearly $6 billion.
QHS is at the forefront in redefining how care is delivered, measured and paid for in this country, said Valence Health CEO Phil Kamp.
Under the agreement, Valence will provide QHS both the Valence VISION and vQuest solutions.
QHS mission is to empower the necessary collaboration to standardize quality and drive down health care costs across all care settings within its member organizations.
Individuals were linked with QHS data by the respondent's name, gender, and month and year of birth.
The ambulatory medical services utilization was operationalized as the total number of ambulatory visits to a physician made during the 12 months following the QHS interview.
Each respondent's previous health services utilization was measured by the total number of medical visits recorded in the RAMQ patient file for the 12 months preceding the QHS interview.