The Journal of Bone and Joint Surgery (American). 2005;87:1038-1046.
doi:10.2106/JBJS.D.02060
© 2005 The Journal of Bone and Joint Surgery, Inc.
This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow [Supplementary Material]
Right arrow Letters to the Editor: Submit a response
Right arrow Alert me when this article is cited
Right arrow Alert me when Letters to the Editor are posted
Right arrow Alert me if a correction is posted
Services
Right arrow E-mail this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Add to My File Cabinet
Right arrow Download to citation manager
Right arrowReprints and Permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Beaton, D. E.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Beaton, D. E.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us   Add to Technorati  
What's this?

Development of the QuickDASH: Comparison of Three Item-Reduction Approaches

Dorcas E. Beaton, BScOT, MSc, PhD1, James G. Wright, MD, MPH, FRCSC2, Jeffrey N. Katz, MD, MS3 The Upper Extremity Collaborative Group*

1 Institute for Work and Health, 481 University Avenue, Suite 800, Toronto, ON M5G 2E9, Canada. E-mail address: dbeaton{at}iwh.on.ca
2 Division of Orthopaedic Surgery, The Hospital for Sick Children, 555 University Avenue, Toronto, ON M5G 1X8, Canada
3 Robert B. Brigham Arthritis and Musculoskeletal Clinical Research Center, Brigham and Women's Hospital, 75 Francis Street, Boston, MA 02115

Investigation performed at the Institute for Work and Health, Toronto, Ontario, Canada

In support of their research or preparation of this manuscript, one or more of the authors received grants or outside funding from the Institute for Work and Health, the American Academy of Orthopaedic Surgeons, the American Society of Surgery of the Hand, Canadian Institutes of Health Research, and the National Institutes of Health (Grants K24 AR02123 and P60 AR47782). None of the authors received payments or other benefits or a commitment or agreement to provide such benefits from a commercial entity. No commercial entity paid or directed, or agreed to pay or direct, any benefits to any research fund, foundation, educational institution, or other charitable or nonprofit organization with which the authors are affiliated or associated.

* The Upper Extremity Collaborative Group included Peter Amadio, MD, Claire Bombardier, MD, Donald Cole, MD, MSc, Aileen Davis, BScPT, PhD, Pam Hudak, BScPT, PhD, Robert Marx, MD, MSc, Gillian Hawker, MD, MSc, Matti Makela, MD, and Laura Punnett, DSc.

Background: The purpose of this study was to develop a short, reliable, and valid measure of physical function and symptoms related to upper-limb musculoskeletal disorders by shortening the full, thirty-item DASH (Disabilities of the Arm, Shoulder and Hand) Outcome Measure.

Methods: Three item-reduction techniques were used on the cross-sectional field-testing data derived from a study of 407 patients with various upper-limb conditions. These techniques were the concept-retention method, the equidiscriminative item-total correlation, and the item response theory (Rasch modeling). Three eleven-item scales were created. Data from a longitudinal cohort study in which the DASH questionnaire was administered to 200 patients with shoulder and wrist/hand disorders were then used to assess the reliability (Cronbach alpha and test-retest reliability) and validity (cross-sectional and longitudinal construct) of the three scales. Results were compared with those derived with the full DASH.

Results: The three versions were comparable with regard to their measurement properties. All had a Cronbach alpha of ≥0.92 and an intraclass correlation coefficient of ≥0.94. Evidence of construct validity was established (r ≥ 0.64 with single-item indices of pain and function). The concept-retention method, the most subjective of the approaches to item reduction, ranked highest in terms of its similarity to the original DASH.

Conclusions: The concept-retention version is named the QuickDASH. It contains eleven items and is similar with regard to scores and properties to the full DASH. A comparison of item-reduction approaches suggested that the retention of clinically sensible and important content produced a comparable, if not slightly better, instrument than did more statistically driven approaches.

Clinical Relevance: The QuickDASH is a more efficient version of the DASH outcome measure that appears to retain its measurement properties.


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us   Add to Technorati Technorati    What's this?


This article has been cited by other articles:


Home page
 Br Med BullHome page
U. G. Longo, F. Franceschi, M. Loppini, N. Maffulli, and V. Denaro
Rating systems for evaluation of the elbow
Br. Med. Bull., September 1, 2008; 87(1): 131 - 161.
[Abstract] [Full Text] [PDF]

Home page
 JBJSHome page
K. C. Owsley and J. T. Gorczyca
Displacement/Screw Cutout After Open Reduction and Locked Plate Fixation of Humeral Fractures
J. Bone Joint Surg. Am., February 1, 2008; 90(2): 233 - 240.
[Abstract] [Full Text] [PDF]

Home page
 JBJSHome page
L. N. Matheson, J. M. Melhorn, T. G. Mayer, B. R. Theodore, and R. J. Gatchel
Reliability of a Visual Analog Version of the QuickDASH
J. Bone Joint Surg. Am., August 1, 2006; 88(8): 1782 - 1787.
[Abstract] [Full Text] [PDF]