Evidence of validity for the Japanese version of the foot and ankle ability measure
Daisuke Uematsu, Hidetomo Suzuki, Shogo Sasaki, Yasuharu Nagano, Nobuyuki Shinozuka, Norihiko Sunagawa, Toru Fukubayashi, Daisuke Uematsu, Hidetomo Suzuki, Shogo Sasaki, Yasuharu Nagano, Nobuyuki Shinozuka, Norihiko Sunagawa, Toru Fukubayashi
Abstract
Context: The Foot and Ankle Ability Measure (FAAM) is a valid, reliable, and self-reported outcome instrument for the foot and ankle region.
Objective: To provide evidence for translation, cross-cultural adaptation, validity, and reliability of the Japanese version of the FAAM (FAAM-J).
Design: Cross-sectional study.
Setting: Collegiate athletic training/sports medicine clinical setting.
Patients or other participants: Eighty-three collegiate athletes.
Main outcome measure(s): All participants completed the Activities of Daily Living and Sports subscales of the FAAM-J and the Physical Functioning and Mental Health subscales of the Japanese version of the Short Form-36v2 (SF-36). Also, 19 participants (23%) whose conditions were expected to be stable completed another FAAM-J 2 to 6 days later for test-retest reliability. We analyzed the scores of those subscales for convergent and divergent validity, internal consistency, and test-retest reliability.
Results: The Activities of Daily Living and Sports subscales of the FAAM-J had correlation coefficients of 0.86 and 0.75, respectively, with the Physical Functioning section of the SF-36 for convergent validity. For divergent validity, the correlation coefficients with Mental Health of the SF-36 were 0.29 and 0.27 for each subscale, respectively. Cronbach α for internal consistency was 0.99 for the Activities of Daily Living and 0.98 for the Sports subscale. A 95% confidence interval with a single measure was ±8.1 and ±14.0 points for each subscale. The test-retest reliability measures revealed intraclass correlation coefficient values of 0.87 for the Activities of Daily Living and 0.91 for the Sports subscales with minimal detectable changes of ±6.8 and ±13.7 for the respective subscales.
Conclusions: The FAAM was successfully translated for a Japanese version, and the FAAM-J was adapted cross-culturally. Thus, the FAAM-J can be used as a self-reported outcome measure for Japanese-speaking individuals; however, the scores must be interpreted with caution, especially when applied to different populations and other types of injury than those included in this study.
Keywords: outcome assessments; questionnaires; self-reported outcome measures.
Source: PubMed