4.4 Article

Foot and ankle ability measure to measure functional limitations in patients with foot and ankle disorders: a Chinese cross-cultural adaptation and validation

Journal

DISABILITY AND REHABILITATION
Volume 39, Issue 21, Pages 2182-2189

Publisher

TAYLOR & FRANCIS LTD
DOI: 10.1080/09638288.2016.1219772

Keywords

Foot; ankle; Patient Outcome Reported Measures; assessment; Chinese version; validation

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Purpose: To perform a cultural adaptation and validation study (internal and external) of the FAAM questionnaire to create the Chinese version of the questionnaire (FAAM-Ch). Materials and methods: Two independent professional native translators performed a translation from English to Chinese and reverse translation. Psychometric properties analysis: Internal consistency of measure was analysed through the Cronbach's coefficients. After extraction by maximum likelihood (EML), the structure factor and construct validity was analysed; to extract a factor, it was necessary to complete the following three requirements:10% of variance, Eigenvalue >1.0 and scree plot inflection point. Standard error measurement (SEM) and minimal detectable change 90 (MDC90) were calculated. FFI-Taiwan version, SF12v2, and EuroQol5D were used for criterion validity analysis. Results: The internal consistency (Cronbach's ) for specific FAAM-Ch subscales was 0.879 (ADL) and 0.901 (Sport); test-retest analysis (interclass correlation) item ranging between 0.758 and 0.970 (ADL: 0758-0946; Sport: 0.911-0.970). Measures error: 3.449% (MDC90) and 1.478% (SEM). Chi-squared value=15228.74 and gl 406) (p<0.001) and the Kaiser-Meyer-Oklin values (0.919). The correlation level with the FFI is strong, with SF12v2 is between poor and strong and with EuroQoL5d is between moderate and strong Conclusions: FAAM-Chinese version has satisfactory transversal psychometric properties, facilitating the inclusion of FAAM-Chinese into research and clinical practice.

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