The client satisfaction with device: a Rasch validation of the Arabic version in patients with upper and lower limb amputation

Abstract

Background The Client Satisfaction with Devices (CSD) module of the Orthotics and Prosthetics Users’ Survey is an extensively used questionnaire that measures patients’ satisfaction with orthosis and prosthesis. However, the validated version for Arabic speakers (CSD-Ar) is only applicable for orthosis users. Objectives The aim of this study was to evaluate the psychometric proprieties of the CSD-Ar for prosthetics users. Methods The study used a convenience sample of prosthesis users from Saudi Arabia and Turkey (N = 183), who completed the CSD-Ar. The collected data were analysed using Rasch analysis to evaluate item fit, reliability indices, item difficulty, local item dependency, and differential item functioning (DIF) using WINSTEPS version 4.6.1. Results Based on the analysis, the four-response Likert-scale was acceptable, as shown by the category functioning test, All eight items did achieve a fit to the Rasch Model [(infit) and (outfit) mean-square 0.75 to 1.3]. Person separation reliability was 0.76, and item separation reliability was 0.94. A principal component analysis (PCA) showed satisfactory unidimensionality and no local item dependency. The DIF analysis showed no notable dependency among items on participant characteristics in terms of age, gender, duration of use, country, and level of amputation. Conclusion This study contributes to the confidence of using CSD-Ar to evaluate users’ satisfaction with different prostheses, affirming the need for further refinement of the quality of the outcome measure.

Psychometric properties of the Client Satisfaction with Device module of the Orthotics and Prosthetics Users’ Survey (OPUS): a scoping review

“…The remaining studies [5,14,17,18,21,22] included eight of the 11 original items (the first seven items and item #nine, i.e. ‘Pain free to wear’), in agreement with Jarl et al .…”

“…Finally, in 2019 and 2021, three articles used the eight-item CSD: two Rasch studies validated the cross-culturally translated and adapted version in the Slovene language, and the Arabic version on prosthesis users [5,22], whereas a Canadian study used the CSD American English version as a reference for validating another satisfaction score (the Orthosis Comfort Score) [21].…”

Satisfaction of individuals with partial-hand amputations after they were fitted with cosmetic silicone prostheses

“…17 The CSD-Ar consists of 8 items addressing fitting, weight, comfort, donning, appearance, durability, skin abrasion and irritation, and pain. 17 Respondents have rated the CSD-Ar items on a 4-point Likert scale between 1 (strongly agree) and 4 (strongly disagree). Thus, higher CSD-Ar scores indicate less satisfaction.…”

“…A cross-sectional study was designed. The CSD-Ar was used for this purpose, 17 which was validated by Bakhsh et al 17 They concluded the confidence of using CSD-Ar to assess the satisfaction of the prosthetic users. 17 The CSD-Ar consists of 8 items addressing fitting, weight, comfort, donning, appearance, durability, skin abrasion and irritation, and pain.…”

“…The CSD-Ar was used for this purpose, 17 which was validated by Bakhsh et al 17 They concluded the confidence of using CSD-Ar to assess the satisfaction of the prosthetic users. 17 The CSD-Ar consists of 8 items addressing fitting, weight, comfort, donning, appearance, durability, skin abrasion and irritation, and pain. 17 Respondents have rated the CSD-Ar items on a 4-point Likert scale between 1 (strongly agree) and 4 (strongly disagree).…”