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Enfermería Nefrológica

On-line version ISSN 2255-3517Print version ISSN 2254-2884


MOTA DE SOUSA, Luís Manuel et al. Validation of the Personal Wellbeing Index in people with chronic kidney disease. Enferm Nefrol [online]. 2016, vol.19, n.2, pp.135-141. ISSN 2255-3517.

Objective: to verify the psychometric properties of the Personal Wellbeing Index (PWI) in people with chronic kidney disease on hemodialysis. Method: This is a methodological study. A random sample consisted of 171 people with Chronic Kidney Disease (CKD) who underwent hemodialysis in two clinics in the region of Lisbon, Portugal. Data collection was conducted from May to June 2015. The psychometric properties were evaluated: Validity (construct, convergent predictive and discriminative), reliability through internal consistency (Cronbach α) and stability (Spearman-Brown correlation coefficient and intraclass correlation coefficient (ICC)). Results: PWI has a dimension adjusted to the data set. Satisfaction with health is the largest contributor to the PWI. It shows convergent validity with Subjective Happiness and Positive Affect and Negative Affect. It has discriminative power of nationality. The Cronbach α was 0,82. Retest test for the questionnaire 0, 92 and ICC = 0,95, for the interview 0,85 and ICC = 0,89. Conclusions: The Portuguese version of PWI is valid and reproducible in people with CKD, both by questionnaire and by interview.

Keywords : renal insufficiency chronic; renal dialysis; quality of life; validation studies; psychometrics.

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