Translation, cross-cultural adaptation, and psychometric properties of the Spanish version of the dysfunctional voiding score symptoms (DVSS-Sp) questionnaire in a pediatric chilean sample

Abstract

Background

The Dysfunctional Voiding Score Symptoms (DVSS) questionnaire is commonly used to evaluate dysfunctional voiding and incontinence (DVI).

Objectives

To translate and culturally adapt the DVSS questionnaire into Spanish (DVSS-Sp) in pediatric population and to assess its psychometric properties.

Methods

The process of translation and cultural validation were done. To obtain evidence of validity and reliability, we evaluated the fit of different factor models and calculated internal consistency coefficients. Also, the diagnostic capacity of the DVSS-Sp scale was assessed through a logistic regression analysis and a receiver operating characteristic (ROC) curve. Accordingly, a total sample of 248 participants was recruited (204 with a diagnosis of DVIs and 44 with no medical problems).

Results

The cross-cultural adaptation showed an adequate correspondence with the original version. The DVSS-Sp was configured with 2 factors: Overactive Bladder (OB) symptoms (items 1, 2, 6, and 7) and Dysfunctional Elimination (DE) symptoms (items 3, 4, 8, and 9), showing excellent goodness-of-fit indices. The relationship between the factors OB and DE was low. The reliability of the OB factor was α = 0.68, ω = 0.71, and the DE factor was α = 0.56, ω = 0.57. A logistic regression analysis suggests a good diagnostic capacity of the DVSS-Sp scale. Additionally, ROC analysis showed a cut-off score of 3.5 on the DVSS-Sp scale, where the specificity was 0.907, and the sensitivity was 0.636.

Conclusion

The results of this study support the use of the DVSS-Sp for assessing DVIs in Spanish-speaking children.