16-10-2019
Screening for health-related quality of life in children and adolescents: Optimal cut points for the KIDSCREEN-10 for epidemiological studies
Gepubliceerd in: Quality of Life Research | Uitgave 2/2020
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Introduction
Generic measures of health-related quality of life are important in
pediatrics. Here, we try to establish optimal cut points for the self-report and
parental-report versions of the KIDSCREEN-10.
Method
We re-analyzed data from the German Health Interview and Examination
Survey for Children and Adolescents (KiGGS) study. In total, data from 2566
children, 2136 younger adolescents, and 2740 older adolescents were used. The
KIDSCREEN-10 was contrasted to three different anchors: the strength and
difficulties questionnaire, self-rated general health, and chronic diseases. A
kernel-based method and bootstrapping were used to determine the optimal cut
points and their variability.
Results
We found large differences in HRQoL between children with vs.
without mental health problems but there is only medium-to-small differences in
HRQoL between children with vs. without chronic diseases and children with
self-rated good vs. poor physical health. Acceptable levels of classification
accuracy were found in relation to mental health problems for all versions (AUCs
between 0.77 and 0.79), but only for the parental-report version in relation to
general health and for no version in relation to chronic diseases. Cut points
identified as optimal differed systematically between parental-report versions
(cut point = 41.13) and self-report for younger (cut point = 42.52) and older
adolescents (cut point = 40.29).
Conclusion
The results aid the interpretation of KIDSCREEN-10 in
epidemiological studies. Specifically, we suggest a cut point of 41 should be
used to interpret the parental-report version of the KIDSCREEN and 40 and 42,
respectively, for young and older adolescents.