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The PedsQL: reliability and validity of the short-form generic core scales and Asthma Module

Kitty S Chan1, Rita Mangione-Smith, Tasha M Burwinkle

  • 1RAND Corporation, Health Program, Santa Monica, California, USA. kchan@jhsph.edu

Medical Care
|February 24, 2005
PubMed

Insights

The PedsQL 4.0 SF15 and PedsQL 3.0 SF22 Asthma Module are reliable for assessing pediatric health-related quality of life (HRQoL) in children with asthma. These tools effectively compare HRQoL across different clinical statuses in research.

Area of Science:

  • Pediatric Health Outcomes Research
  • Psychometrics
  • Quality of Life Measurement

Background:

  • Pediatric health-related quality of life (HRQoL) is crucial for understanding child well-being.
  • Validated instruments are needed to efficiently measure HRQoL in clinical research.
  • Shortened versions of existing instruments can improve data collection efficiency.

Purpose of the Study:

  • To evaluate the reliability and validity of the PedsQL 4.0 SF15 (a short form of the PedsQL 4.0 Generic Core Scales) and the PedsQL 3.0 SF22 Asthma Module.
  • To determine the suitability of these instruments for group-level comparisons in pediatric asthma research.

Main Methods:

  • Administered the PedsQL 4.0 SF15 and PedsQL 3.0 SF22 Asthma Module via telephone to adolescents (12-18) and parents of children with asthma (2-11).
  • Included healthy and chronically ill children for validity testing, matched by age, respondent status, and ethnicity.
  • Assessed reliability using Cronbach's alpha and validity through comparisons with clinical status and functional measures.

Main Results:

  • The PedsQL 4.0 SF15 Total Score and PedsQL 3.0 SF22 Asthma Module's Asthma Symptoms and Treatment Problems scales showed sufficient reliability (alpha >= 0.70) for group comparisons.
  • Both instruments effectively distinguished between children of different clinical statuses and correlated with productivity and family functioning measures.
  • The PedsQL 4.0 SF15 demonstrated psychometric properties comparable to its original, longer version.

Conclusions:

  • The PedsQL 4.0 SF15 Total Score and the PedsQL 3.0 SF22 Asthma Module's Asthma Symptoms scale are reliable and valid for group-level comparisons.
  • These shortened instruments are suitable for assessing generic and asthma-specific HRQoL in clinical research involving children with asthma.
Abstract

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