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Quality of Life Research

, Volume 21, Issue 4, pp 717–725 | Cite as

An assessment of the construct validity of the CHU9D in the Australian adolescent general population

  • Julie RatcliffeEmail author
  • Katherine Stevens
  • Terry Flynn
  • John Brazier
  • Michael Sawyer
Article

Abstract

Purpose

To assess the construct validity of the CHU9D in an adolescent general population sample. The CHU9D is a new generic preference-based measure of health-related quality of life developed specifically for application in the economic evaluation of health care treatments and interventions for young people.

Methods

A web-based survey was developed including the CHU9D and HUI2 instruments and administered to a community-based sample of consenting adolescents (n = 710) aged 11–17 years. The practicality, face and construct validity of the CHU9D was examined. The relationship between the CHU9D and HUI2 instruments was assessed by a comparison of responses to similar dimensions and the utility scores derived from the two instruments.

Results

The CHU9D demonstrated high completion rates. CHU9D was able to discriminate between respondents according to their self-reported general health (Kruskal–Wallis P value <0.001). The mean CHU9D adolescent population utilities were similar to those generated from the HUI2 [Mean (SD) CHU9D utility 0.844 (0.102) and HUI2 utility 0.872 (0.138)], and the intra-class correlation coefficient indicated good levels of agreement overall (ICC = 0.742).

Conclusion

The findings from this study provide support for the practicality, face and construct validity of the CHU9D for application with adolescents aged 11–17 years.

Keywords

Adolescents Quality-adjusted life years Questionnaires Outcome assessment (health care) Community 

Abbreviations

AQoL

Assessment of quality of life

CHU9D

Child health utility 9D

CUA

Cost utility analysis

EQ-5D

EuroQol

FAS

Family affluence scale

HUI2

Health utilities mark 2

MAUF

Multi-attribute utility function

QALY

Quality-adjusted life year

VAS

Visual analogue scale

Notes

Acknowledgments

The authors would like to thank Dr Steve Quinn for his helpful comments on a previous version of this paper. This study was supported by a Flinders University seeding grant.

Conflict of interest

This study has been approved by the Social and Behavioural Research Ethics Committee, Flinders University, project number: 4701.

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Copyright information

© Springer Science+Business Media B.V. 2011

Authors and Affiliations

  • Julie Ratcliffe
    • 1
    Email author
  • Katherine Stevens
    • 2
  • Terry Flynn
    • 3
  • John Brazier
    • 2
  • Michael Sawyer
    • 4
  1. 1.Flinders Clinical EffectivenessFlinders UniversityBedford ParkAustralia
  2. 2.Health Economics and Decision Science, ScHARRUniversity of SheffieldSheffieldUK
  3. 3.Centre for the Study of Choice (CenSoC)University of TechnologySydneyAustralia
  4. 4.Discipline of PaediatricsUniversity of AdelaideAdelaideAustralia

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