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Published in: Health and Quality of Life Outcomes 1/2013

Open Access 01-12-2013 | Research

Cross-cultural adaptation, reliability and validity of the Spanish version of the upper limb functional index

Authors: Antonio I Cuesta-Vargas, Philip C Gabel

Published in: Health and Quality of Life Outcomes | Issue 1/2013

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Abstract

Background

The Upper Limb Functional Index (ULFI) is an internationally widely used outcome measure with robust, valid psychometric properties. The purpose of study is to develop and validate a ULFI Spanish-version (ULFI-Sp).

Methods

A two stage observational study was conducted. The ULFI was cross-culturally adapted to Spanish through double forward and backward translations, the psychometric properties were then validated. Participants (n = 126) with various upper limb conditions of >12 weeks duration completed the ULFI-Sp, QuickDASH and the Euroqol Health Questionnaire 5 Dimensions (EQ-5D-3 L). The full sample determined internal consistency, concurrent criterion validity, construct validity and factor structure; a subgroup (n = 35) determined reliability at seven days.

Results

The ULFI-Sp demonstrated high internal consistency (α = 0.94) and reliability (r = 0.93). Factor structure was one-dimensional and supported construct validity. Criterion validity with the EQ-5D-3 L was fair and inversely correlated (r = −0.59). The QuickDASH data was unavailable for analysis due to excessive missing responses.

Conclusions

The ULFI-Sp is a valid upper limb outcome measure with similar psychometric properties to the English language version.
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Metadata
Title
Cross-cultural adaptation, reliability and validity of the Spanish version of the upper limb functional index
Authors
Antonio I Cuesta-Vargas
Philip C Gabel
Publication date
01-12-2013
Publisher
BioMed Central
Published in
Health and Quality of Life Outcomes / Issue 1/2013
Electronic ISSN: 1477-7525
DOI
https://doi.org/10.1186/1477-7525-11-126

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