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The DUX-25 after Twenty-Five Years: New Analyses and Reference Data.

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The DUX-25 questionnaire for children

Keywords:
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Area of Science:

  • Pediatric Health
  • Quality of Life Measurement
  • Psychometrics

Background:

  • The DUX-25 questionnaire assesses health-related quality of life in children aged 8-17.
  • Established 25 years ago, it utilizes parent proxy reports.
  • Updated analyses and reference data are now available.

Purpose of the Study:

  • To present new analyses and reference data for the DUX-25.
  • To validate the psychometric properties of the DUX-25.
  • To confirm its utility in clinical settings for children with chronic conditions.

Main Methods:

  • Web-based data collection from 774 healthy children and caregivers in the Netherlands.
  • Exploratory and confirmatory factor analyses to evaluate the DUX-25's factor structure.
  • Comparison with the PedsQL to assess construct validity.

Main Results:

  • The DUX-25 demonstrated adequate psychometric qualities.
  • Factor analyses supported a four-factor model, with a five-factor model also emerging.
  • High construct validity was evidenced by comparison with the PedsQL.

Conclusions:

  • The DUX-25 is a psychometrically sound measure of health-related quality of life in children.
  • Updated reference data support its continued use.
  • The DUX-25 is suitable for both inpatient and outpatient settings for children with chronic conditions.