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. 2016 Feb;31(2):159-63.
doi: 10.3346/jkms.2016.31.2.159. Epub 2016 Jan 26.

Validation of the Korean Version of Schedule of Fatigue and Anergia: General Physician Questionnaire

Sarah Kim  1 , Woo Kyung Bae  2 , Ju Young Kim  1 , Mijee Jang  3 , Jeong Hyun Kim  4 , Hyun Hee Noh  1
Affiliations

Validation of the Korean Version of Schedule of Fatigue and Anergia: General Physician Questionnaire

Sarah Kim et al. J Korean Med Sci. 2016 Feb.

Abstract

The Schedule of Fatigue and Anergy/General Physician (SOFA/GP) was developed to screen for prolonged fatigue in the primary care setting. We aimed to evaluate the reliability and validity of the Korean version of the SOFA/GP (SOFA/GP-K), which is adapted from the original English version. We performed translation and back translation, and after conducting a pilot study, we tested the final version of the questionnaire for its reliability and validity in a Korean primary care setting. Two hundred participants that visited a health examination center in a university hospital completed the survey between September and November 2012. A second survey was performed within 2 weeks of the primary survey to test for reliability. We evaluated concurrent validity between the SOFA/GP-K score, the Fatigue Severity Scale (FSS), and Brief Fatigue Index (BFI) scores. The Spearman correlation coefficient between SOFA/GP-K and FSS was 0.71 and 0.61 between SOFA/GP-K and BFI. Internal consistency of SOFA/GP-K was observed (Cronbach's alpha = 0.82) and construct validity was confirmed by factor analysis. The Kappa scores for test-retest reliability for each survey item were between 0.28 and 0.64. The SOFA/GP-K is a valid and reliable questionnaire for screening fatigue in a primary care setting.

Keywords: Anergia; Fatigue; Korean; Primary Health Care; Scale; Validation.

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Conflict of interest statement

DISCLOSURE: All authors have no potential conflicts of interest to disclose.

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