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Reliability and validity of the Turkish version of the Composite Autonomic Symptom Score in patients with
Ibrahim Bal1, Omer Osman Pala2, Musa Polat3
1Department of Physiotherapy and Rehabilitation, Sivas Cumhuriyet University, Health Science Institute, Sivas, Türkiye.
Objectives:
This study aims to determine the Turkish validity and reliability of the Composite Autonomic Symptom Score (COMPASS-31) in patients with fibromyalgia.
Patients And Methods:
The study included 117 patients (113 females, 4 males; mean age: 43.0±11.0 years; range, 20 to 61 years) diagnosed with fibromyalgia between November 2021 and February 2023. The COMPASS-31, Revised Fibromyalgia Impact Questionnaire (FIQR), and the 36-item Short-Form Health Survey (SF-36) were used to collect data. The reliability of the scale was tested with internal consistency and test-retest reliability, and the validity was determined with construct validity. For test-retest reliability, 31 individuals (27 females, 4 males; mean age: 42.0±10.0 years; range, 21 to 60 years) were reassessed after one week. To establish the construct validity of COMPASS-31, its correlation with FIQR and SF-36 was assessed.
Results:
Cronbach's alpha value was 0.912, and the intraclass correlation coefficient was 0.838, indicating high reliability and internal consistency. According to the construct validity analysis, COMPASS-31 showed a good positive correlation with FIQR (r=0.451, p<0.001), and good negative correlations were observed between COMPASS-31 and vitality, mental health, and general health subscales of SF-36 (r=-0.402, p>0.001; r=-0.404, p<0.001; r=-0.455, p<0.001).
Conclusion:
The Turkish version of the COMPASS-31 is valid and reliable to assess autonomic symptoms in patients with fibromyalgia.
