Psychometric properties of the Swedish PedsQL, Pediatric Quality of Life Inventory 4.0 generic core scales
2009 (English)In: Acta Paediatrica, ISSN 0803-5253, E-ISSN 1651-2227, Vol. 98, no 9, 1504-1512 p.Article in journal (Refereed) Published
Aim: To study the psychometric performance of the Swedish version of the Pediatric Quality of Life Inventory (PedsQL) 4.0 generic core scales in a general child population in Sweden.
Methods: PedsQL forms were distributed to 2403 schoolchildren and 888 parents in two different school settings. Reliability and validity was studied for self-reports and proxy reports, full forms and short forms. Confirmatory factor analysis tested the factor structure and multigroup confirmatory factor analysis tested measurement invariance between boys and girls.
Results: Test-retest reliability was demonstrated for all scales and internal consistency reliability was shown with α value exceeding 0.70 for all scales but one (self-report short form: social functioning). Child-parent agreement was low to moderate. The four-factor structure of the PedsQL and factorial invariance across sex subgroups were confirmed for the self-report forms and for the proxy short form, while model fit indices suggested improvement of several proxy full-form scales.
Conclusion: The Swedish PedsQL 4.0 generic core scales are a reliable and valid tool for health-related quality of life (HRQoL) assessment in Swedish child populations. The proxy full form, however, should be used with caution. The study also support continued use of the PedsQL as a four-factor model, capable of revealing meaningful HRQoL differences between boys and girls.
Place, publisher, year, edition, pages
2009. Vol. 98, no 9, 1504-1512 p.
Child;PedsQL;Quality of life;Sweden;Validation studies
Research subject Pediatrics
IdentifiersURN: urn:nbn:se:umu:diva-3049DOI: 10.1111/j.1651-2227.2009.01360.xPubMedID: 19570060OAI: oai:DiVA.org:umu-3049DiVA: diva2:141486
Titel i avhandlingens delarbete 3: Psychometric properties of the pediatric quality of life inventory 4.0 generic core scale2008-03-202008-03-202015-04-29Bibliographically approved