![]() ![]() Measure group Weight used in calculation Mortality 22% Safety 22% Readmission 22% Patient Experience 22% Timely & Effective Care 12% The hospital summary score is then used to assign hospitals to star ratings, using k-means clustering within each peer group. The table below shows the weight applied to each measure group. ![]() Application of clustering algorithm to categorize summary scores into star ratingsįor each hospital, a hospital summary score is calculated by taking the weighted average of the hospital’s scores for each measure group.Assignment of hospitals to peer groups based on their number of measure groups (3, 4, or 5).Application of minimum thresholds for receiving an Overall Star Rating.Calculation of hospital summary scores as a weighted average of available group scores.Calculation and standardization of measure group scores. ![]()
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