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Jornal de Pediatria

Print version ISSN 0021-7557On-line version ISSN 1678-4782


KLATCHOIAN, Denise A. et al. Quality of life of children and adolescents from São Paulo: reliability and validity of the Brazilian version of the Pediatric Quality of Life InventoryTM version 4.0 Generic Core Scales. J. Pediatr. (Rio J.) [online]. 2008, vol.84, n.4, pp.308-315. ISSN 0021-7557.

OBJECTIVES: To evaluate the reliability and validity of the Brazilian version of the Pediatric Quality of Life InventoryTM (PedsQLTM 4.0) Generic Core Scales and measure the quality of life of healthy children and adolescents and patients with rheumatic diseases. METHODS: We followed the translation methodology proposed by the developer of the original English version of the PedsQLTM 4.0. The instrument was administered by interviews in two groups: 240 apparently healthy children and adolescents from São Paulo (SP, Brazil) and 105 patients with chronic rheumatic diseases, matched by age, as well as to their respective parents or caregivers. The parent proxy-report was administered to the children's parents or caregivers separately on the same day. RESULTS: Cronbach's alpha values were between 0.6 and 0.9 for all dimensions, demonstrating adequate internal consistency. Patients with rheumatic diseases reported significantly lower PedsQLTM scores on all dimensions when compared to the healthy control group (p < 0.0001). Construct validity of the Brazilian Portuguese version of the PedsQLTM 4.0 was also confirmed. Parent proxy-report of patients with rheumatic diseases highly correlated with child self-report for physical functioning (r = 0.77, p < 0.001) and school functioning (r = 0.73, p < 0.001). Lower correlations were observed for emotional and social functioning (r = 0.40 and 0.59, respectively, p < 0.001). CONCLUSIONS: The tool demonstrated reliability, validity and the administration was fast and easy. Quality of life of patients with rheumatic diseases was significantly lower than the healthy control group, supporting the necessity of a comprehensive approach to rheumatic disease management, focused on the psychosocial dimensions.

Keywords : Quality of life; questionnaire; PedsQLTM; validation; translation; functional status.

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