Arthritis and rheumatism
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Arthritis and rheumatism · Jan 1991
Relationship of clinical features with psychological status in primary fibromyalgia.
Clinical features and psychological status determined by the Minnesota Multiphasic Personality Inventory (MMPI) in 103 patients with primary fibromyalgia syndrome (PFS) were analyzed by univariate and multivariate techniques to determine if clinical features were related to psychological status or were intrinsic to PFS per se. The central features of PFS, e.g., number of pain sites, number of tender points, fatigue, and poor sleep, were independent of psychological status. ⋯ These data suggest a new concept, that the central features of fibromyalgia are independent of the psychological status and are more likely related to the PFS itself. However, pain severity may be influenced by psychological factors.