Fig. 3

Clustering results of hospitals not performing cardiac surgery

n = 2698 “a” shows bar graphs of the accumulated percentages by measures and “b” shows the clustering results, with the rectangles indicating clusters. “Height” at the top right means distance. Large changes in height were taken to indicate two clusters. Line “c” in Fig. 3 shows where to “cut” the dendrogram, indicating hospitals not performing cardiac surgery formed two clusters. Communication measures formed a better-rated group and the rest of the measures including two global measures formed a poorly-rated cluster

Revised from Fig. 4 in Okuda M, Yasuda A, Tsumoto S. Factors of Patient Satisfaction based on distant analysis in HCAHPS Databases, IEEE International Workshop on Data Mining for Service (DMS2014), Shenzhen, China, December 14, 2014 [36]