Abstract
Objective
To test a 17-item questionnaire, the WOrk-Related Questionnaire for UPper extremity
disorders (WORQ-UP), for dimensionality of the items (factor analysis) and internal
consistency.
Design
Cross-sectional study.
Setting
Outpatient clinic.
Participants
A consecutive sample of patients (N=150) consisting of all new referral patients (either
from a general physician or other hospital) who visited the orthopedic outpatient
clinic because of an upper extremity musculoskeletal disorder.
Interventions
Not applicable.
Main Outcome Measures
Number and dimensionality of the factors in the WORQ-UP.Results: Four factors with
eigenvalues (EVs) >1.0 were found. The factors were named exertion, dexterity, tools
& equipment, and mobility. The EVs of the factors were, respectively, 5.78, 2.38,
1.81, and 1.24. The factors together explained 65.9% of the variance. The Cronbach
alpha values for these factors were, respectively, .88, .74, .87, and .66.
Conclusions
The 17 items of the WORQ-UP resemble 4 factors—exertion, dexterity, tools & equipment,
and mobility—with a good internal consistency.
Keywords
List of abbreviations:
CA (Cronbach alpha), EFA (exploratory factor analysis), EV (eigenvalue), FA (factor analysis), KMO (Kaiser-Meyer-Olkin), PROM (patient-reported outcome measure), WORQ-UP (WOrk-Related Questionnaire for UPper extremity disorders)To read this article in full you will need to make a payment
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Article info
Publication history
Published online: April 17, 2018
Footnotes
Disclosures: none.
Identification
Copyright
© 2018 by the American Congress of Rehabilitation Medicine
