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Table 6 Selected results from stepwise ordinary least squares regressions showing the percentage of variance explained for each symptom associated with the cluster symptom measure1.

From: The development of the Canberra symptom scorecard: a tool to monitor the physical symptoms of patients with advanced tumours

Cluster 1 GI/pain/cogn % Var Cluster 2 Neural/emot % Var Cluster 3 Tension % Var Cluster 4 Respiratory % Var
Vomiting 5.5 Difficulty sleeping 19.7 Tense 70.3 Coughing 18.9
Lack of appetite 0.8 Dizziness 66.8 Shortness of breath 29.7 Shortness of breath 81.1
Nausea 69.9 Sore/weak muscles 5.4    breath  
Dry mouth 1.0 Numbness 1.0     
Constipation 14.6 Depression 1.4     
Heartburn 1.3 Tiredness 0.9     
Pain 3.3 Lack of energy 4.9     
Problems remembering things 3.7       
  1. 1. A composite symptom measure was created for each of the four clusters (GI/pain/cognitive, Neurological/emotional, Tension, and Respiratory). The symptoms associated with each composite measure were then examined in a stepwise method for their contribution to explaining the variation in each cluster. The order symptoms were entered into the regression model follows the amount of variance explained, with the largest being entered first.