Abstract

PARDO-GUIJARRO, María Jesús et al. Validity and reliability of the Spanish sign language version of the KIDSCREEN-27 health-related quality of life questionnaire for use in deaf children and adolescents. Gac Sanit [online]. 2013, vol.27, n.4, pp.318-324. ISSN 0213-9111.  https://dx.doi.org/10.1016/j.gaceta.2012.11.003.

Objective: The aim of this paper was to test the validity and reliability of a Spanish sign language (SSL) adaptation of KIDSCREEN-27, a health-related quality of life (HRQoL) questionnaire for use in deaf children and adolescents. Methods: We performed an observational cross-sectional study of 114 deaf children and adolescents aged 8 to 18 years old. The Spanish version of the KIDSCREEN-27 was adapted to SSL through the translation-back translation technique. The adapted questionnaire was then administered using a web tool to ensure complete access to study participants. Floor and ceiling effects were calculated. Structural and cultural validity were tested using exploratory and confirmatory factor analysis. Cronbach´s a was used to assess internal consistency. The questionnaire was administered for a second time to the entire sample after 2 to 4 weeks (test-retest reliability). Results: In the SSL version of the KIDSCREEN-27, as in the original Spanish scale, five dimensions explained 59% of the variance. None of the participants obtained the minimum or maximum scores on the scale (floor and ceiling effect, respectively). Confirmatory factor analysis showed the goodness-of-fit of the factor solution with five dimensions of the SSL version. The Cronbach´s a of both the total scale and of each of the distinct dimensions was above 0.75. The intra-class correlation coefficient of the test-retest scale was considered acceptable in all the dimensions. Conclusions: The reliability and validity of the SSL version of the KIDSCREEN-27 are similar to those of the original Spanish version, providing a new tool for measuring HRQoL in deaf children and adolescents.

Keywords : Health-related quality of life; Deaf children and adolescents; KIDSCREEN-27 questionnaire; Spanish sign language; Cross-cultural validity/adaptation.

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