Symptom clusters using the Spitzer quality of life index in patients with brain metastases--a reanalysis comparing different statistical methods
Supportive Care in Cancer, 08/10/2012
Khan L et al. – Symptom clusters vary with respect to occurrence, quantity, and composition based on the statistical method utilized to extract them. Further studies should be conducted to determine an ideal statistical method in order to select the optimal method to employ. The use of a single analytical method is essential for consistency and comparison purposes in future symptom cluster research.