[Validation of the Spanish version of the short forms of the Urogenital Distress Inventory (UDI-6) and the Incontinence Impact Questionnaire (IIQ-7) in pregnant women]

Abstract

Objective: To validate two measurement instruments, the UDI-6 and the IIQ-7, for the study of urinary incontinence and its impact on the quality of life of pregnant women.

Methods: We carried out a validation study of a diagnostic tool. A total of 181 pregnant women completed the UDI-6 and IIQ-7 questionnaires. Feasibility, internal consistency, reliability, and construct and criteria validity were analyzed.

Results: Self-administration of the short forms of the UDI-6 and IIQ-7 questionnaires took less than 5minutes and the maximum rate of no answer per item was 3.3%. Cronbach's alpha was 0.667 for the UDI-6 and was 0.910 for the IIQ-7. The reliability of the UDI-6 in the diagnosis of urinary incontinence showed Kappa statistic values of between 0.856 and 0.966, and the intra-class correlation coefficients of the UDI-6 and IIQ-7 were 0.902 and 0.954, respectively. Average values of the UDI-6 and IIQ-7 were higher in women with mixed incontinence, were lower in women with stress incontinence and increased with daily losses (p<0.01). The correlation between the UDI-6 and the International Consultation on Incontinence Questionnaire - Short Form (ICIQ-SF) (CCI=0.497; 95% CI: 0.326-0.625) and between the IIQ-7 and ICIQ-SF (CCI=0.472; 95% CI: 0.268-0.619) was moderate. The sensitivity and specificity of the UDI-6 for the diagnosis of urinary incontinence was 98.9% and 86.5%, respectively.

Conclusions: The Spanish versions of the IIQ-7 and UDI-6 are feasible, reliable, consistent and valid in the measurement of symptoms and quality of life in pregnant Spanish women with urinary incontinence.

2010 SESPAS. Published by Elsevier Espana. All rights reserved.