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Revista Portuguesa de Enfermagem de Saúde Mental

versão impressa ISSN 1647-2160

Resumo

SOUSA, Luís et al. Confirmatory Factor Analysis of the Depression Anxiety Stress Scale in Chronic Kidney Disease. Revista Portuguesa de Enfermagem de Saúde Mental [online]. 2017, n.spe5, pp.13-18. ISSN 1647-2160.  http://dx.doi.org/10.19131/rpesm.0161.

BACKGROUND: The Depression Anxiety Stress Scale (DASS) was developed by Lovibond & Lovibond in 1995 with the objective of evaluating the symptoms of anxiety and depression. The Portuguese version of the DASS with 21 items (DASS-21) confirmed having identical properties as those of the original version. AIM: Confirm the structure of DASS-21 in people with chronic kidney disease on dialysis. METHOD: Methodological study. A representative sample of 159 people with chronic kidney disease on dialysis was obtained in two clinics in the Lisbon region and a nephrology department in a Lisbon hospital center, Portugal. Data collection occurred from may to june 2015. A confirmatory factor analysis was developed using the AMOS software. The following parameters were used: ratio between Chi squared and the degrees of freedom (Χ2/g.l), goodness-of-fit index (GFI), comparative fit index (CFI), Tucker-Lewis index (TLI) and root mean square error of approximation (RMSEA). RESULTS: The following was obtained: Χ2/g.l=1,980, GFI=0,84, CFI=0,87, TLI=0,85 and RMSEA=0,08, which shows being a good adjustment for the hypothesis of the solution of two factors. The solution proposed in the original version and in the Portuguese version is not confirmed (three factors). CONCLUSIONS: The portuguese version of the DASS presents two factors and is valid for measuring Stress/Anxiety and Depression, in people with chronic kidney disease.

Palavras-chave : Chronic Renal Insufficiency; Depression; Anxiety; Validation studies.

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