The charts in Chapter 7 provide results for two additional ways of summarizing changes in
patient safety composite scores over time. The first series of charts displays the number of
hospitals that increased, decreased, or did not change by 5 percentage points or more for each
composite, patient safety grade, and number of events reported. The second set of charts displays
the distribution of trending hospitals by number of composites that increased, decreased, or
changed less than 5 percentage points.