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. Author manuscript; available in PMC: 2019 Feb 1.
Published in final edited form as: J Pain Symptom Manage. 2017 Aug 30;55(2):318–333.e4. doi: 10.1016/j.jpainsymman.2017.08.020

Table 2.

K-modes Solutions and Silhouette Indices for Three- Through Five-Class Solutions

Model Silhouette Index
3 Clustera 0.159
4 Cluster 0.156
5 Cluster 0.129
a

Based on the Silhouette Index, the three-cluster solution performed higher than both the 4- and 5-cluster solutions.