Ravens-Sieberer, UURavens-SiebererGosch, AAGoschRajmil, LLRajmilErhart, MMErhartBruil, JJBruilPower, MMPowerDuer, WWDuerAuquier, PPAuquierCloetta, BernhardBernhardCloettaCzemy, LLCzemyMazur, JJMazurCzimbalmos, AACzimbalmosTountas, YYTountasHagquist, CCHagquistKilroe, JJKilroe2024-10-132024-10-132007https://boris-portal.unibe.ch/handle/20.500.12422/96111OBJECTIVE: To assess the construct and criterion validity of the KIDSCREEN-27 health-related quality of life (HRQoL) questionnaire, a shorter version of the KIDSCREEN-52. METHODS: The five-dimensional KIDSCREEN-27 was tested in a sample of 22,827. For criterion validity the correlation with and the percentage explained variance of the scores of the KIDSCREEN-52 instrument were examined. Construct validity was assessed by testing a priori expected associations with other generic HRQoL measures (YQOL-S, PedsQL, CHIP), indicators of physical and mental health, and socioeconomic status. Age and gender differences were investigated. RESULTS: Correlation with corresponding scales of the KIDSCREEN-52 ranged from r = 0.63 to r = 0.96, and r2 ranged from 0.39 to 0.92. Correlations between other HRQoL questionnaires and KIDSCREEN-27 dimensions were moderate to high for those assessing similar constructs (r = 0.36 to 0.63). Statistically significant and sizeable differences between physically and mentally healthy and ill children were found in all KIDSCREEN-27 dimensions together with strong associations with psychosomatic complaints (r = -0.52). Most of the KIDSCREEN-27 dimensions showed a gradient according to socio-economic status, age and gender. CONCLUSIONS: The KIDSCREEN-27 seems to be a valid measure of HRQoL in children and adolescents. Further research is needed to assess longitudinal validity and sensitivity to change.enarticle10.7892/boris.224241766829200024963010000810.1007/s11136-007-9240-2