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Table 3 Discriminative analysis of cluster characteristicsa

From: Subgroups of older adults with osteoarthritis based upon differing comorbid symptom presentations and potential underlying pain mechanisms

Variable Cluster 1 Cluster 2 Cluster 3
Constant -27.56 -13.30 -8.72
CES-D .49 .30 .09
BFI 2.89 1.93 1.23
Sleep disturbance 1.01 .40 .88
Pain .85 .17 1.20
Illness burden 1.04 1.05 .27
  1. aValues are the coefficients for discriminant functions for each cluster. Values in boldface indicate the variable loads highest for that particular cluster.