Abstract
The aim of this study was to evaluate the reliability and validity of a Swedish version of the Coping Strategies Questionnaire in patients with fibromyalgia. A total of 275 patients from 4 sites in Sweden filled out the questionnaire and other health status and quality of life instruments at the beginning of treatment programs. A total of 28 subjects at 1 site served as wait-listed controls for 12 weeks. Cronbach's Alpha for the subscales ranged from 0.3 3 to 0.86. Coping Strategies Questionnaire subscales correlated significantly with other scales. The treated group had significant positive changes on several Coping Strategies Questionnaire subscales. Principal components analysis found a 3-factor solution consisting of cognitive coping/suppression, pain control/rational thinking and behavioral activity. Analysis by item replicated 4 of the 8 subscales. A further principal components analysis using 27 items replicated an earlier 6-factor solution. The Swedish version of the Coping Strategies Questionnaire has subscales that are reliable, valid and sensitive to change in patients with fibromyalgia.