Reliability, construct and criterion validity of the KIDSCREEN-10 score: a short measure for children and adolescents' well-being and health-related quality of life.
BACKGROUND
To assess the criterion and construct validity of the KIDSCREEN-10 well-being and health-related quality of life (HRQoL) score, a short version of the KIDSCREEN-52 and KIDSCREEN-27 instruments.


METHODS
The child self-report and parent report versions of the KIDSCREEN-10 were tested in a sample of 22,830 European children and adolescents aged 8-18 and their parents (n = 16,237). Correlation with the KIDSCREEN-52 and associations with other generic HRQoL measures, physical and mental health, and socioeconomic status were examined. Score differences by age, gender, and country were investigated.


RESULTS
Correlations between the 10-item KIDSCREEN score and KIDSCREEN-52 scales ranged from r = 0.24 to 0.72 (r = 0.27-0.72) for the self-report version (proxy-report version). Coefficients below r = 0.5 were observed for the KIDSCREEN-52 dimensions Financial Resources and Being Bullied only. Cronbach alpha was 0.82 (0.78), test-retest reliability was ICC = 0.70 (0.67) for the self- (proxy-)report version. Correlations between other children self-completed HRQoL questionnaires and KIDSCREEN-10 ranged from r = 0.43 to r = 0.63 for the KIDSCREEN children self-report and r = 0.22-0.40 for the KIDSCREEN parent proxy report. Known group differences in HRQoL between physically/mentally healthy and ill children were observed in the KIDSCREEN-10 self and proxy scores. Associations with self-reported psychosomatic complaints were r = -0.52 (-0.36) for the KIDSCREEN-10 self-report (proxy-report). Statistically significant differences in KIDSCREEN-10 self and proxy scores were found by socioeconomic status, age, and gender.


CONCLUSIONS
Our results indicate that the KIDSCREEN-10 provides a valid measure of a general HRQoL factor in children and adolescents, but the instrument does not represent well most of the single dimensions of the original KIDSCREEN-52. Test-retest reliability was slightly below a priori defined thresholds.
Ravens-Sieberer
Ulrike
U
Child Public Health, University Medical Center Hamburg-Eppendorf, Martinistr. 52, 20246, Hamburg, Germany. Ravens-sieberer@uke.uni-hamburg.de
Erhart
Michael
M
Rajmil
Luis
L
Herdman
Michael
M
Auquier
Pascal
P
Bruil
Jeanet
J
Power
Mick
M
Duer
Wolfgang
W
Abel
Thomas
T
Czemy
Ladislav
L
Mazur
Joanna
J
Czimbalmos
Agnes
A
Tountas
Yannis
Y
Hagquist
Curt
C
Kilroe
Jean
J
D000293:Adolescent; D000328:Adult; D017677:Age Distribution; D002648:Child; D005060:Europe; D005260:Female; D005843:Geography; D006801:Humans; D008297:Male; D008875:Middle Aged; D010290:Parents; D011594:Psychometrics; D011788:Quality of Life; D018434:Sickness Impact Profile; D011795:Surveys and Questionnaires / Q000592:standards*; D006113:United Kingdom