Abstract
The purpose of this study was to investigate the association among daily stressors, cognitive rumination, and fibromyalgia symptoms using time-series methodology and to determine whether autocorrelation was present in the self-report data. Twelve female fibromyalgia subjects monitored their daily level of stressors, cognitive rumination, and fibromyalgia symptoms for 30-35 days. Time-series regression analyses indicated that there was a positive association between previous-day stressors and fibromyalgia symptoms for one subject and between previous-day cognitive rumination and fibromyalgia symptoms for four subjects. For 7 out of 12 subjects autocorrelation was present, and generalized least-squares methods were used with these subjects. These results indicate that ordinary least-squares methods may often not be appropriate for within-subject designs with self-report data. These results also question the often reported stressor-physical symptom association. This study illustrates a useful methodology and analysis to investigate psychosocial-physical symptom associations.
Original language | English (US) |
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Pages (from-to) | 541-558 |
Number of pages | 18 |
Journal | Journal of Behavioral Medicine |
Volume | 15 |
Issue number | 6 |
DOIs | |
State | Published - Dec 1992 |
Externally published | Yes |
Keywords
- cognitive rumination
- fibromyalgia
- stress
- time-series analysis
ASJC Scopus subject areas
- General Psychology
- Psychiatry and Mental health