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J Rheumatol. 2001 Aug;28(8):1892-9.

Effort testing in patients with fibromyalgia and disability incentives.

Author information

1
Department of Rheumatic Diseases, University of Alberta, Canada. rgervais@powersurfr.com

Abstract

OBJECTIVE:

To examine whether symptom exaggeration is a factor in complaints of cognitive dysfunction using 2 new validated instruments in patients with fibromyalgia (FM).

METHODS:

Ninety-six patients with FM and 16 patients with rheumatoid arthritis (RA) were administered 2 effort or symptom validity tests designed to detect exaggerated memory complaints as part of a battery of psychological tests and self-report questionnaires.

RESULTS:

A large percentage of patients with FM who were on or seeking disability benefits failed the effort tests. Only 2 patients with FM who were working and/or not claiming disability benefits and no patient with RA scored below the cutoffs for exaggeration of memory difficulties.

CONCLUSION:

This study illustrates the importance of assessing for exaggeration of cognitive symptoms and biased responding in patients with FM presenting for disability related evaluations.

PMID:
11508597
[Indexed for MEDLINE]

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