Background Fibromyalgia is a challenging chronic pain condition accompanied by several comorbidites. Since patients are encountered in various health care settings, there is a need for short, easy to use, psychometrically validated screening tool
Objectives This study aims to evaluate reliability and validity of Turkish version of Fibromyalgia Rapid Screening Tool (FiRST) by correlating this tool with 2013 American College of Rheumatology alternative diagnostic criteria (ACR AltCr) and Hospital Anxiety and Depression Scale (HADS).
Methods A convenience sample of 269 subjects recruited from outpatient Physical Medicine and Rehabilitation clinics were included in the study. Patients were asked to complete the questionnaire including FiRST (twice), 2013 AltCr and HADS. The reliability of the FiRST scale was examined by test-retest method. For criterion validity of FiRST scale, we used ACR 2013AltCr for comparison. The concordance between ACRAltCr and FiRST and the relationships between variables were evaluated. The sensitivity, specificity, positive and negative likelihood ratios of FiRST was calculated according to ACR 2013 AltCr criteria. Logistic regression analysis was carried out to find the confounding effect of HADS on FiRST to discriminate the patients with FMS
Results The test-retest reliability coefficient of FiRST scale was r=0.875. FiRST was similar to ACR 2013 AltCr in defining patients with FMS. FiRST score was correlated with subscores of ACR 2013AltCr. Each point increase in FiRST global score increased odds of suffering FM approximately 10 times compared to HADS
Conclusions Turkish version of FiRST is a reliable instrument for identifying patients with FMS
Disclosure of Interest None declared