Jornal de pediatria · 2019
Cross-cultural adaptation and validation of the universal Portuguese-version of the Pediatric Functional Assessment of Chronic Illness Therapy - Fatigue (pedsFACIT-F).
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Fernandes Karla P, Teixeira Bruno S, Arnold Benjamin J, Mendonça Tânia M da S, Oliveira Sthela M, Silva Carlos Henrique M da
Аннотация
OBJECTIVE: To cross-culturally adapt and validate the universal Portuguese version of the Pediatric Functional Assessment of Chronic Illness Therapy - Fatigue (pedsFACIT-F).
METHOD: The universal Portuguese version of the pedsFACIT-F was cross-culturally adapted and validated in 323 children and adolescents aged 8-18 years, 173 healthy individuals, and 150 with chronic diseases (cancer, juvenile idiopathic arthritis, and diabetes). Reliability (internal consistency and test-retest reliability) was assessed. Item response theory model assumptions were evaluated using confirmatory and exploratory factor analyses. Items were calibrated using a graded response model. Differential item functioning was assessed regarding age, gender, and clinical condition (healthy vs. chronic diseases).
RESULTS: No major cultural adaptations were needed. Internal consistency (Cronbach's alpha=0.84) and test-retest reliability (intraclass correlation coefficient=0.92) were good. CFA (CFI=0.92, TLI=0.90, RMSEA=0.097) and CFE analysis confirmed sufficient unidimensionality. The data also fit the GRM and demonstrated good coverage of the fatigue construct (threshold parameters range: -1.42 to 4.56). No items demonstrated significant differential item functioning.
CONCLUSION: The universal Portuguese version of the pedsFACIT-F provides a reliable, precise, and valid measure after being assessed by robust psychometric properties. Stability of the measurement properties of the pedsFACIT-F scale allows its use to assess fatigue in clinical research in Portuguese-speaking children and adolescents.
METHOD: The universal Portuguese version of the pedsFACIT-F was cross-culturally adapted and validated in 323 children and adolescents aged 8-18 years, 173 healthy individuals, and 150 with chronic diseases (cancer, juvenile idiopathic arthritis, and diabetes). Reliability (internal consistency and test-retest reliability) was assessed. Item response theory model assumptions were evaluated using confirmatory and exploratory factor analyses. Items were calibrated using a graded response model. Differential item functioning was assessed regarding age, gender, and clinical condition (healthy vs. chronic diseases).
RESULTS: No major cultural adaptations were needed. Internal consistency (Cronbach's alpha=0.84) and test-retest reliability (intraclass correlation coefficient=0.92) were good. CFA (CFI=0.92, TLI=0.90, RMSEA=0.097) and CFE analysis confirmed sufficient unidimensionality. The data also fit the GRM and demonstrated good coverage of the fatigue construct (threshold parameters range: -1.42 to 4.56). No items demonstrated significant differential item functioning.
CONCLUSION: The universal Portuguese version of the pedsFACIT-F provides a reliable, precise, and valid measure after being assessed by robust psychometric properties. Stability of the measurement properties of the pedsFACIT-F scale allows its use to assess fatigue in clinical research in Portuguese-speaking children and adolescents.