Objectives: Psychological factors and physical and emotional distress are frequently identified in fibromyalgia (FM). Previous reports have explored the relationship between some of these variables and functional disability and emotional distress in the disease; however, additional links with other potential psychological factors are unknown. This study aimed to assess the association between psychological variables and functional disability and emotional distress in individuals with FM.
Methods: This prospective, cross-sectional cohort study included 251 FM patients aged over 18 years. Demographic and clinical characteristics and outcome measures were recorded for each participant. Multiple linear regression analysis was performed to identify associations between the psychological factors.
Results: The findings suggest significant associations between psychological variables and physical impact and emotional distress (anxiety and depression) (all p-values < 0.0001). Positive and negative affect, mindfulness, and perceived injustice were strongly associated with the physical and emotional impact (all p-values < 0.05) in the sample.
Conclusions: The study provides useful insights into the domains of physical and emotional distress. The findings should be incorporated into personalised treatments aimed at reducing functional disability and improving quality of life in patients with fibromyalgia.