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Simplifying Fibromyalgia Assessment: The VASFIQ Brief Symptom Scale.


ABSTRACT: OBJECTIVES:We tested the ability of the VASFIQ, a seven-item scale composed of Fibromyalgia Impact Questionnaire (FIQ) visual analog scales (VASs), to quantify fibromyalgia global disease severity and identify fibromyalgia patients with significant symptoms of fatigue, poor sleep, depression or anxiety. METHODS:Spearman rank correlations were used to compare global VASFIQ, FIQ and Patient Global Impression of Change (PGIC) scores and individual FIQ VAS scores with full-length, validated questionnaire scores for fatigue (Multidimensional Assessment of Fatigue-Global Fatigue Index [MAF-GFI]), poor sleep (Medical Outcomes Study Sleep Problems Index [SPI]) and depression and anxiety (Hospital Anxiety and Depression Scale [HADS]). Patient scores used in the analyses were derived from 2229 patients enrolled in three pregabalin fibromyalgia trials. Receiver operating characteristic analyses determined VASFIQ cutoff scores identifying patients with clinically significant symptom levels using full-length, validated symptom questionnaires to define cases. RESULTS:Global VASFIQ and FIQ scores correlated highly at baseline and study endpoints (? = 0.94 and 0.97, respectively; both p<0.0001). Change in global VASFIQ and FIQ scores correlated similarly to PGIC scores at study endpoints (? = 0.58 and 0.61, respectively; both p<0.0001). Individual FIQ VAS scores correlated with corresponding full-length symptom questionnaire scores at baseline and study endpoints (VASfatigue with MAF-GFI, ? = 0.64 and 0.76; VASsleep with SPI, ? = 0.50 and 0.67; VASdepression with HADS-D, ? = 0.43 and 0.62; VASanxiety with HADS-A, ? = 0.47 and 0.67, respectively; p <0.0001 for all). Patients with significant symptoms of fatigue were identified by VASfatigue >7.5, poor sleep by VASsleep >7.9, depression by VASdepression >5.8 and anxiety by VASanxiety >6.0. VASFIQ global scores ?31.4 and ?45.0 identified patients with moderate and severe global fibromyalgia symptoms, respectively. CONCLUSIONS:The VASFIQ scale accurately quantifies global fibromyalgia severity and identifies patients with significant symptoms of fatigue, poor sleep, depression or anxiety with brevity, enabling rapid patient assessment and informing treatment decisions in busy clinics.

SUBMITTER: Boomershine CS 

PROVIDER: S-EPMC3383533 | biostudies-literature | 2011 Oct

REPOSITORIES: biostudies-literature

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Simplifying Fibromyalgia Assessment: The VASFIQ Brief Symptom Scale.

Boomershine Chad S CS   Emir Birol B   Wang Yi Y   Zlateva Gergana G  

Therapeutic advances in musculoskeletal disease 20111001 5


<h4>Objectives</h4>We tested the ability of the VASFIQ, a seven-item scale composed of Fibromyalgia Impact Questionnaire (FIQ) visual analog scales (VASs), to quantify fibromyalgia global disease severity and identify fibromyalgia patients with significant symptoms of fatigue, poor sleep, depression or anxiety.<h4>Methods</h4>Spearman rank correlations were used to compare global VASFIQ, FIQ and Patient Global Impression of Change (PGIC) scores and individual FIQ VAS scores with full-length, val  ...[more]

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