Development and psychometric performance of the French language version of the Manchester-Oxford Foot Questionnaire (MOXFQ). Issue 8 (December 2020)

• Record Type: Journal Article
• Authors: Vieira Cardoso, Diogo; Dubois-Ferrière, Victor; Hannouche, Didier; Lübbeke, Anne; Perneger, Thomas
• Is Part Of: Foot and ankle surgery. Volume 26:Issue 8(2020)
• Page Start: 902
• Page End: 906
• Publication Date: 2020-12
• Subjects: MOXFQ -- Patient reported outcome measures -- French -- Questionnaires -- Instrument -- Validation -- Translation -- Foot and ankle; Foot -- Surgery -- Periodicals; Ankle -- Surgery -- Periodicals; Ankle -- surgery -- Periodicals; Foot -- surgery -- Periodicals; Ankle -- Surgery; Foot -- Surgery; Periodicals; Electronic journals; 617.58
• DOI: 10.1016/j.fas.2019.12.002
• Languages: English
• ISSNs: 1268-7731

Abstract

Highlights: French translation of Manchester-Oxford Foot Questionnaire (MOXFQ) with evaluation of its psychometric properties. The French version showed excellent usability and reliability. The French MOXFQ is a reliable patient-reported outcome instrument for use in patients with foot or ankle disorders. Abstract: Background: The Manchester-Oxford Foot Questionnaire (MOXFQ) is a 16-item patient-reported outcome measure (PROM) validated for use in patients with foot and ankle pathologies. It contains three sub-scores for pain, walking/standing and social interaction dimensions. The aim of this study was to develop a French language version of the MOXFQ and to assess its psychometric properties in patients affected by foot and ankle pathologies. Methods: According to guidelines, forward and backward independent translations were performed. The final French version was pre-tested in 45 patients. The French MOXFQ and the Short-form 36 Health Survey (SF-36) were filled in by 149 patients. A retest was performed in 39 patients. Internal consistency and test–retest reliability were assessed using Cronbach's alpha and intraclass correlation coefficient (ICC), respectively. Construct validity was assessed by factor analysis, and through correlations of MOXFQ scales with SF-36 scales. Results: Internal consistency coefficients were high with Cronbach's alpha ranging from 0.79 and 0.94. Test-retest ICCs were between 0.74 and 0.93. No floor or ceiling effects were observed. The correlations between French MOXFQ and French SF-36 subscales were moderate ranging from −0.33 to −0.71. Conclusions: The French translation of the MOXFQ revealed good psychometric properties. Our French version proved to be a reliable instrument which can be used for evaluation of patients with foot and ankle disorders. Level of evidence: II.