Cross-cultural adaptation and validation of the Arabic version of oxford ankle foot questionnaire for children

PURPOSE

The purpose of this study was to translate and cross-culturally adapt the original English version of the Oxford Ankle Foot Questionnaire (OxAFQ-c) into the Arabic language, and to evaluate its psychometric properties among Arabic speaking children aged from 5 to 16 years in Saudi Arabia.

MATERIALS AND METHODS

An Arabic OxAFQ-c for children was developed according to established guidelines (ISPOR). The Arabic OxAFQ-c version was completed by eighty-seven patients with foot and ankle problems and their caregivers. Construct validity of the Arabic OxAFQ-c was also examined.

RESULTS

The reliability analysis of OxAFQ-Ar exhibited good internal consistency in both children's and parent's versions for all domains (α = 0.80-0.89) and excellent test-retest reliability in both versions for all domains. (ICC = 0.87-0.94). A moderate correlation between the OxAFQ-Ar and PedsQL 4.0 was observed indicating moderate construct validity.

CONCLUSIONS

The OxAFQ-c was successfully translated and cross-cultural adapted into the Arabic language. The OxAFQ-Ar is a valid, reliable and useful quality of life questionnaire for evaluating children's ankle foot problems.IMPLICATION OF REHABILITATION OF OxAFQ-c ARABIC VERSIONThe Arabic version of the OxAFQ-c is an acceptable, clear and comprehensible outcome measure.The Arabic version of the OxAFQ-c demonstrated evidence supporting its internal consistency, test-retest reliability and construct validity as a measure to evaluate foot and ankle pathologies in patients aged 5-16 years.The Arabic OxAFQ-c has very good internal consistency, test-retest reliability, and acceptable measurement error with no floor and ceiling effects.The Arabic version of the OxAFQ-c can be used in daily clinical practice and in research studies to assess children aged from 5 to 16 years in Arabic speakers with ankle-foot conditions.

Transcultural adaptation and validation of a Korean version of the Oxford Ankle Foot Questionnaire for children

BACKGROUND

The purpose of this study was to translate and transculturally adapt the original English version of the Oxford Ankle Foot Questionnaire (OAFQ) into a Korean version, and to evaluate its psychometric properties.

METHODS

A Korean OAFQ for children was developed according to established guidelines. To test validity, 169 consecutive patients with foot and ankle problems and their caregivers each completed the OAFQ. The children also completed a Korean version of the KIDSCREEN-52 health related quality of life questionnaire (KIDSCREEN-52 HRQOL). To validate the Korean version of the OAFQ, reliability (child-parent agreement and internal consistency), feasibility (floor and ceiling effects), and construct validity were evaluated, and factor analysis was performed.

RESULTS

In terms of reliability, Cronbach's α values were > 0.7 in all subscales of the OAFQ (0.765 to 0.901). Child-parent agreement was confirmed by high intraclass correlation coefficients for all subscales (0.791 to 0.863). In terms of construct validity, there were moderate correlations between the subscales of the OAFQ and the subscales of the KIDSCREEN-52 HRQOL. Factor analysis revealed a three-component solution for both the child/adolescent and parent-proxy version, by combining the school and play, and footwear items into one subscale. In terms of feasibility, no floor effects were found for all subscales. However, ceiling effects were observed for the school and play, and emotional subscales for child/adolescent and parent-proxy versions.

CONCLUSIONS

The OAFQ was successfully translated and transculturally adapted into the Korean language; the Korean version of the OAFQ represents a reliable and valid instrument for evaluating children's foot or ankle problems. However, factor analysis suggested the use of a three-subscale questionnaire.