TY - JOUR
T1 - Validation of the Japanese version of the Fisk Fatigue Severity Score (FFSS) in Japanese patients with primary biliary cirrhosis
AU - Tanaka, Atsushi
AU - Takahashi, Hiroki
AU - Nezu, Saeko
AU - Ueno, Yoshiyuki
AU - Kikuchi, Kentaro
AU - Shibuya, Akitaka
AU - Ohira, Hiromasa
AU - Zeniya, Mikio
AU - Montali, Lorenzo
AU - Invernizzi, Pietro
AU - Takikawa, Hajime
PY - 2009
Y1 - 2009
N2 - Fatigue is considered to be a specific symptom of primary biliary cirrhosis (PBC), while the prevalence of fatigue in Japanese PBC patients remain unclear, probably due to lack of objective scales for assessment of fatigue in Japanese. In this study, we developed the Japanese version of Fisk Fatigue Severity Score (FFSS), frequently employed in the previous studies, and examined the validity and reliablity in 166 Japanese PBC patients. Cronbach's alfa coefficients in each subscale of the FFSS ranged from 0.94 to 0.96. The correlations between each subscale of FFSS and SF-36 were well acceptable. In particular, the 'vitality' and 'role physical' subscales of SF-36 were well correlated with subscales of FFSS. The factor analysis of the FFSS yielded 4 factors which explain 66% of the total variance. This study validated the Japanese version of FFSS, which provide a powerful tool for the evaluation of fatigue of Japanese PBC patients.
AB - Fatigue is considered to be a specific symptom of primary biliary cirrhosis (PBC), while the prevalence of fatigue in Japanese PBC patients remain unclear, probably due to lack of objective scales for assessment of fatigue in Japanese. In this study, we developed the Japanese version of Fisk Fatigue Severity Score (FFSS), frequently employed in the previous studies, and examined the validity and reliablity in 166 Japanese PBC patients. Cronbach's alfa coefficients in each subscale of the FFSS ranged from 0.94 to 0.96. The correlations between each subscale of FFSS and SF-36 were well acceptable. In particular, the 'vitality' and 'role physical' subscales of SF-36 were well correlated with subscales of FFSS. The factor analysis of the FFSS yielded 4 factors which explain 66% of the total variance. This study validated the Japanese version of FFSS, which provide a powerful tool for the evaluation of fatigue of Japanese PBC patients.
KW - Autoimmune liver disease
KW - Fatigue
KW - Objective assessment scale
KW - Primary biliary cirrhosis
KW - Quality of life
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U2 - 10.2957/kanzo.50.51
DO - 10.2957/kanzo.50.51
M3 - Article
AN - SCOPUS:64049108309
SN - 0451-4203
VL - 50
SP - 51
EP - 59
JO - Acta Hepatologica Japonica
JF - Acta Hepatologica Japonica
IS - 2
ER -