[article] 
inAnnals of physical and rehabilitation medicine > Vol. 62, n°3 (Mai 2019) . - p. 168-173

Titre :	Cross-cultural adaptation and Rasch validation of the Slovene version of the Orthotics and Prosthetics Users’ Survey (OPUS) Client Satisfaction with Device (CSD) in upper-limb prosthesis users
Type de document :	texte imprimé
Auteurs :	Helena Burger ; Andrea Giordano ; Maja Mlakar ; Caterina Albensi ; Darinka Brezovar ; Franco Franchignoni
Année de publication :	2019
Article en page(s) :	p. 168-173
Note générale :	https://doi.org/10.1016/j.rehab.2019.03.003
Langues :	Anglais (eng)
Mots-clés :	Patient satisfaction  Upper extremity  Prosthesis  Outcome assessment  Questionnaire  Rehabilitation
Résumé :	Objective To validate the Slovene version of the Orthotics and Prosthetics Users’ Survey (OPUS) 8-item Client Satisfaction with Device (CSD) questionnaire in upper-limb prosthesis users and to further verify measurement properties of this tool with Rasch analysis. Design Participants consisted of a convenience sample of 76 adults (54 men) using a prosthesis after unilateral upper-limb amputation who consecutively attended a follow-up visit at our centre. Methods After translation and cross-cultural adaptation of the CSD into the Slovene language, we evaluated functioning of the rating scale categories, item fit (internal construct validity), reliability indices and dimensionality, as well as convergent and discriminant construct validity of the questionnaire. Results Rasch analysis indicated that: (1) functioning of the 4 response options was acceptable; (2) all items fitted the measured construct [information-weighted (infit) and outlier-sensitive (outfit) mean-square statistics 0.60 to 1.40]; (3) person separation reliability was 0.62 (and Cronbach α = 0.76), item separation reliability was 0.83; (4) on principal component analysis (PCA) on the standardised residuals, the CSD showed borderline but acceptable unidimensionality and no local item dependency. Moreover, as expected, the CSD score showed good correlation with the QUEST 2.0 score (rs = 0.57) and little to fair correlation with the OPUS Upper Extremity Functional Status score (rs = 0.21). Conclusion The metric properties of the Slovene version of CSD agree with previous studies. The present study confirms the validity of CSD for measuring patient satisfaction with an upper-limb device, enhances the confidence in this tool for assessing upper-limb prosthesis users, and contributes to further refining the technical quality of this measure.
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[article] Cross-cultural adaptation and Rasch validation of the Slovene version of the Orthotics and Prosthetics Users’ Survey (OPUS) Client Satisfaction with Device (CSD) in upper-limb prosthesis users [texte imprimé] / Helena Burger ; Andrea Giordano ; Maja Mlakar ; Caterina Albensi ; Darinka Brezovar ; Franco Franchignoni . - 2019 . - p. 168-173.
https://doi.org/10.1016/j.rehab.2019.03.003
Langues : Anglais (eng)
in Annals of physical and rehabilitation medicine > Vol. 62, n°3 (Mai 2019) . - p. 168-173

Mots-clés :	Patient satisfaction  Upper extremity  Prosthesis  Outcome assessment  Questionnaire  Rehabilitation
Résumé :	Objective To validate the Slovene version of the Orthotics and Prosthetics Users’ Survey (OPUS) 8-item Client Satisfaction with Device (CSD) questionnaire in upper-limb prosthesis users and to further verify measurement properties of this tool with Rasch analysis. Design Participants consisted of a convenience sample of 76 adults (54 men) using a prosthesis after unilateral upper-limb amputation who consecutively attended a follow-up visit at our centre. Methods After translation and cross-cultural adaptation of the CSD into the Slovene language, we evaluated functioning of the rating scale categories, item fit (internal construct validity), reliability indices and dimensionality, as well as convergent and discriminant construct validity of the questionnaire. Results Rasch analysis indicated that: (1) functioning of the 4 response options was acceptable; (2) all items fitted the measured construct [information-weighted (infit) and outlier-sensitive (outfit) mean-square statistics 0.60 to 1.40]; (3) person separation reliability was 0.62 (and Cronbach α = 0.76), item separation reliability was 0.83; (4) on principal component analysis (PCA) on the standardised residuals, the CSD showed borderline but acceptable unidimensionality and no local item dependency. Moreover, as expected, the CSD score showed good correlation with the QUEST 2.0 score (rs = 0.57) and little to fair correlation with the OPUS Upper Extremity Functional Status score (rs = 0.21). Conclusion The metric properties of the Slovene version of CSD agree with previous studies. The present study confirms the validity of CSD for measuring patient satisfaction with an upper-limb device, enhances the confidence in this tool for assessing upper-limb prosthesis users, and contributes to further refining the technical quality of this measure.
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