Translation, cultural adaption, and measurement properties of the Brazilian Portuguese version of the dialysis patient-perceived exercise benefits and barriers scale (DPEBBS-BP).

OBJECTIVE

To translate, culturally adapt, and evaluate the measurement properties of the Dialysis Patient-Perceived Exercise Benefits and Barriers Scale (DPEBBS) in people on hemodialysis in Brazil.

DESIGN

This methodological study adhered to COSMIN recommendations.

METHODS

A multi-method approach: (1) the translation and cultural adaptation, and (2) a cross-sectional survey in people on hemodialysis to assess measurement properties. Factor structure was assessed through confirmatory factor analysis. Convergent validity was tested using Pearson or Spearman correlations. Internal consistency was estimated with Cronbach's alpha (α) and test-retest reliability with Intraclass Correlation Coefficient (ICC). Measurement error was evaluated through the Standard Error of Measurement (SEM) and the minimal detectable change (MDC).

RESULTS

After translating, seven experts determined that the Brazilian Portuguese version of the Dialysis Patient-Perceived Exercise Benefits and Barriers Scale (DPEBBS-BP) was applicable. Additionally, the inclusion of six items was suggested. In the evaluation of measurement properties, 299 participants were included (57.2 ± 15.3 years, 64% male). Confirmatory factor analysis produced a seven-factor solution, which represented 59% of the explained variance of the construct. For convergent validity, the barriers score showed moderate correlations with the Duke Activity Status Index (DASI) and with the functional capacity domain of the SF-36. The internal consistency for benefits was α = 0.87, and barriers α = 0.80. The ICC for benefits and barriers was 0.90 and 0.81, respectively. The SEM and MDC for the benefits were 1.83 and 5.07, while 2.70 and 7.50 for the barriers.

CONCLUSION

The DPEBBS was translated and adapted to Brazilian Portuguese and presented adequate measurement properties.