OBJECTIVE: To compare function and disability in fibromyalgia
syndrome (FMS) cases in the community versus controls, and to
identify variables predicting poor function and disability.
METHODS: We identified 100 FMS cases, 76 pain controls, and
135 general controls in a random survey of 3,395
RESULTS: FMS cases reported worse
function (P < 0.00001), more days in bed (P < 0.001), and more
healthy years of life lost (P < 0.0001). More FMS cases were
disabled (P < 0.00001) and receiving pensions (P < 0.00001).
Risk factors for disability included middle age and previous
heavy manual labor. Pain, fatigue, and weakness were most
often claimed to affect the ability to work Variables
predicting work disability were the Fibromyalgia Impact
Questionnaire (FIQ) score, a prior diagnosis of FMS,
nonrestorative sleep, and past heavy physical labor. Variables
influencing the FIQ score were the number of major symptoms,
self-reported health satisfaction, tender point count, and
CONCLUSION: FMS commonly results in loss of
function and work disability.
White KP, Speechley M, Harth M, Ostbye T