Reliability and construct validity of a new Danish translation of the Prosthesis Evaluation Questionnaire in a population of Danish amputees

Jan Christensen, Patrick Joseph Doherty, Jakob Bue Bjorner, Henning Langberg

Research output: Contribution to journalArticlepeer-review


Background: Most amputees live with their prostheses for a long time. Therefore, quality of life is an important outcome
for lower limb amputees.
Objective: To translate the Prosthesis Evaluation Questionnaire (PEQ) and evaluate psychometric properties.
Study Design: Methodological research.
Methods: Lower limb amputees responded to electronic versions of the PEQ and SF-36v2 at baseline (n=64), after two
weeks (n=51), and after 12 weeks (n=50). Reliability was assessed using Cronbach’s alpha and intraclass correlation
coefficient (ICC) analyses of the baseline and two weeks test-retest data. Estimates for standard error of measurement
(SEM) were calculated based on reliability estimates. Construct validity was evaluated by testing using hypotheses testing.
Results: Reliability estimates (ICC/Cronbach’s alpha) for the nine subscales were: Social Burden (0.85/0.76), Appearance
(0.85/0.72), Residual Limb Health (0.80/0.69), Well-Being (0.78/0.90), Utility (0.76/0.89), Frustration (0.74/0.90), Perceived
Response (0.62/0.80), Ambulation (0.61/0.94), Sounds (0.51/0.65). Construct validity was supported in three out of four
subscales evaluated.
Conclusions: The subscales Social Burden, Appearance, Well-Being, Utility and Frustration had consistent high reliability,
supporting their use in assessing the prosthesis related quality of life in lower limb amputees. Results were mixed on three other
scales (Residual Limb Health, Perceived Response, and Ambulation), while one scale, Sounds, had consistent low reliability.
Clinical relevance
For the first time a patient reported disease specific quality of life measure for lower limb amputees is available in Danish.
Health care providers can now identify patients with reduced quality of life and measure treatment and rehabilitation
effects over time.
Rehabilitation of amputees, rehabilitation, physiotherapy, rehabilitation of prostheses users
Original languageEnglish
Pages (from-to)469-475
JournalProsthetics and Orthotics International
Issue number5
Publication statusPublished - 1 Dec 2016

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