Individuals that experienced traumatic events and were diagnosed with post-traumatic stress disorder (PTSD) were more likely to report more severe FMS symptoms than non-diagnosed individuals.
Einstaklingar sem greindu frá áföllum og voru greindir með áfallastreituröskun voru líklegri til að greina frá alvarlegri einkennum vefjagigtar en einstaklingar án greiningar.