The construct validity and internal consistency of QuickDASH in pediatric patients with upper extremity fractures

Authors

  • Niko Kämppä Department of Hand Surgery, Helsinki University Hospital and University of Helsink https://orcid.org/0009-0006-9257-7326
  • Sina Hulkkonen Department of Hand Surgery, Helsinki University Hospital and University of Helsinki
  • Petra Grahn Department of Pediatric Orthopedics and Traumatology, New Children’s Hospital, HUS Helsinki University Hospital, University of Helsinki https://orcid.org/0000-0003-3018-8270
  • Topi Laaksonen Department of Pediatric Orthopedics and Traumatology, New Children’s Hospital, HUS Helsinki University Hospital, University of Helsinki https://orcid.org/0000-0002-3925-2446
  • Jussi Repo Unit of Musculoskeletal Surgery, Department of Orthopedics and Traumatology, Tampere University Hospital and Tampere University, Finland

DOI:

https://doi.org/10.2340/17453674.2024.40181

Keywords:

Construct validity, Fractures, Internal consistency, Paediatric orthopaedics, Patient reported outcome measure, QuickDASH, Validation

Abstract

Background and purpose: Investigation of treatment options in the pediatric population necessitates the use of valid patient-reported outcome measures (PROMs). We aimed to assess the construct validity and internal consistency of the Quick Disabilities of the Arm, Shoulder and Hand (QuickDASH) in the pediatric population with upper extremity fractures treated both operatively and conservatively.
Patients and methods: QuickDASH, along with several reference PROMs and objective outcome measures, was obtained from 148 5- to 18-year-old patients with a humeral medial epicondyle fracture or a fracture of the distal forearm in a cross-sectional setting with a single follow-up visit. Spearman’s rank correlation and linear regression models were used to assess convergent validity, exploratory factor analysis (EFA) to assess structural validity, and Cronbach’s alpha to investigate internal consistency.
Results: The direction and magnitude of correlation showed by QuickDASH with reference outcome measures was consistent and demonstrated good convergent validity. EFA indicated a 3-factor model with poor fit indices and structural validity remained questionable. Construct validity was considered acceptable overall. QuickDASH demonstrated good internal consistency with an acceptable Cronbach’s alpha (α = 0.75).
Conclusion: QuickDASH demonstrated acceptable construct validity and good internal consistency and is thus a valid instrument, with some limitations, to assess disability and quality of life in pediatric patients with upper extremity fractures.

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References

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Published

2024-04-30

How to Cite

Kämppä, N., Hulkkonen, S., Grahn, P., Laaksonen, T., & Repo, J. (2024). The construct validity and internal consistency of QuickDASH in pediatric patients with upper extremity fractures. Acta Orthopaedica, 95, 192–199. https://doi.org/10.2340/17453674.2024.40181