Document Detail

Specificity and sensitivity of objective tests to detect possible malingering in fibromyalgia: a case-control study in 211 Spanish patients.
MedLine Citation:
PMID:  24373366     Owner:  NLM     Status:  In-Data-Review    
OBJECTIVES: To characterise patients diagnosed with fibromyalgia (FM) who present a clinical profile suggestive of simulation.
METHODS: Observational case-control study of 218 patients who met the classification criteria for FM. The profile supporting simulation was based on the proposed criteria for evaluating disability related to the simulation of pain.
RESULTS: Compared with controls (n=105), patients with suspected simulation of FM (n=106) had a higher mean age (52.5 vs. 49.2 years, p=0.003), a higher frequency of primary education (88.7% vs. 58.1%; p<0.001), a higher percentage of separated/widowed persons (33.9% vs. 8.6%, p<0.001), a higher frequency of psychiatric disorders (100% vs. 67.6%, p<0.001), a higher mean number of positive 'control' tender points (4.5 vs. 1.3, p<0.001), a higher mean FIQ questionnaire score (89.8 vs. 68.8, p<0.001) and a lower mean LHS questionnaire score (41.0 vs. 59.9, p<0.001). Patients with suspected simulation were able to walk a shorter distance in the 6-minute walk test than controls (231.0 vs. 356.3 metres, p<0.001), while the appearance of allodynia was achieved with a significantly lower mmHg pressure (159.8 vs. 229.9 mm Hg, p<0.001).
CONCLUSIONS: Some physical/functional tests, together with the administration of specific questionnaires, may identify a subgroup of patients with FM with a profile consistent with simulation or malingering; these patients have a differentiated demographic and psychiatric profile in comparison with FM patients without a profile of simulation.
Rafael Belenguer-Prieto; Emma M Morales-Espinoza; Rosa M Martín-González; Pilar Brito-Zerón; Jose F Pastor-Oliver; Belchin Kostov; David Buss; Cayetano Gómez-Gálvez; Antonio Salazar-Cifre; Antoni Sisó-Almirall; Manuel Ramos-Casals
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Publication Detail:
Type:  Journal Article     Date:  2013-12-16
Journal Detail:
Title:  Clinical and experimental rheumatology     Volume:  31     ISSN:  0392-856X     ISO Abbreviation:  Clin. Exp. Rheumatol.     Publication Date:    2013 Nov-Dec
Date Detail:
Created Date:  2013-12-30     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8308521     Medline TA:  Clin Exp Rheumatol     Country:  Italy    
Other Details:
Languages:  eng     Pagination:  86-93     Citation Subset:  IM    
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