Abstract
BackgroundThe KIDSCREEN-52 is a worldwide instrument for measuring health-related quality of life (HRQoL) in children and adolescents. The aim of this study is to assess reliability and validity of the Greek version of KIDSCREEN.MethodsQuestionnaires were collected from a representative nationwide sample of 1,194 adolescents aged from 11 to 17 years. Internal consistency reliability was determined by calculation of the Cronbach α coefficient. A confirmatory factor analysis (CFA) was conducted in order to test the construct validity of the questionnaire. Validity was further examined by investigating the correlation of KIDSCREEN with the Strengths and Difficulties Questionnaire (SDQ) and its association with socioeconomic and health-related factors.ResultsInternal consistency reliability was accepted with a Cronbach α above 0.73 for all KIDSCREEN dimensions. CFA showed that the ten-dimensional model fitted the data well (root mean square error of approximation (RMSEA) = 0.048, comparative fit index (CFI) = 0.971 and goodness of fit index (GFI) = 0.965). Correlation coefficients between KIDSCREEN and SDQ dimensions were significant. Adolescents of low socioeconomic status reported lower scores in the majority of KIDSCREEN dimensions. Also, adolescents with chronic health problem had poorer quality of life concerning physical well-being and other dimensions of KIDSCREEN.ConclusionsThe Greek version of KIDSCREEN-52 was found to have satisfied psychometric properties and could be suitable for assessing HRQoL in Greek adolescents.
Highlights
The KIDSCREEN-52 is a worldwide instrument for measuring health-related quality of life (HRQoL) in children and adolescents
The generic KIDSCREEN-52 HRQoL questionnaire is the first instrument for children and adolescents that was developed in several different countries and tested in a large representative sample of children and adolescents [4], thereby helping to provide a broad perspective on the understanding and interpretation of HRQoL across different countries
The results of the present study provide evidence that the KIDSCREEN-52 questionnaire seems to be a reliable and valid instrument for measuring HRQoL in Greek adolescents
Summary
The KIDSCREEN-52 is a worldwide instrument for measuring health-related quality of life (HRQoL) in children and adolescents. The generic KIDSCREEN-52 HRQoL questionnaire is the first instrument for children and adolescents that was developed in several different countries and tested in a large representative sample of children and adolescents [4], thereby helping to provide a broad perspective on the understanding and interpretation of HRQoL across different countries. Psychometric properties such as validity and reliability of the KIDSCREEN-52 HRQoL questionnaire have been assessed in previous studies [7,8,9,10,11] and its crosscultural comparability and psychometric properties have been found satisfactory. Comparisons according to socioeconomic status and the existence of chronic disease are discussed
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