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Sometimes we want to see how people change over time, as in studies of human development and lifespan. When we test the same group of individuals repeatedly over an extended period of time, we are conducting longitudinal research. Longitudinal research is a research design in which data-gathering is administered repeatedly over an extended period of time. For example, we may survey a group of individuals about their dietary habits at age 20, retest them a decade later at age 30, and then again...
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The longitudinal validity of proxy-reported CHU9D.

Rasmus Trap Wolf1,2, Julie Ratcliffe3, Gang Chen4

  • 1Danish Centre for Health Economics, Department of Public Health, University of Southern Denmark, Odense, Denmark. rasmus.trap.wolf@regionh.dk.

Quality of Life Research : an International Journal of Quality of Life Aspects of Treatment, Care and Rehabilitation
|February 14, 2021
PubMed
Summary
This summary is machine-generated.

The Child Health Utility 9D (CHU9D) is a valid measure for children's mental health. Adolescent-derived weights showed greater responsiveness in this population.

Keywords:
AdolescentsCHU9DChildrenHealth state utility valueHealth-related quality of lifeMental healthPreference weights

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Area of Science:

  • Pediatric Psychology
  • Health Economics
  • Psychometrics

Background:

  • The Child Health Utility 9D (CHU9D) is the sole preference-based health-related quality-of-life instrument developed specifically for children.
  • Its utility in pediatric mental health settings requires validation.

Purpose of the Study:

  • To assess the construct validity and responsiveness of the proxy-reported CHU9D in children with mental health conditions.
  • To compare utility weights derived from adult versus adolescent populations.

Main Methods:

  • Discriminant and convergent validity were tested using the Strengths and Difficulties Questionnaire (SDQ) and KIDSCREEN-27.
  • Responsiveness was evaluated via floor-ceiling effects, change over time, and differentiation between improvement levels.

Main Results:

  • The CHU9D demonstrated good construct validity (correlations 0.329-0.571) in 396 children with mental health issues.
  • Adolescent weights yielded larger mean differences between groups.
  • The CHU9D effectively distinguished between varying levels of mental health problems and improvement.

Conclusions:

  • This study offers the first evidence of CHU9D responsiveness in pediatric mental health.
  • The CHU9D is suitable for health-related quality-of-life assessments in pediatric mental health trials.
  • Adolescent preference weights enhance the CHU9D's ability to detect changes.