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The questionnaire for urinary incontinence diagnosis (QUID): validity and responsiveness to change in women undergoing non-surgical therapies for treatment of stress predominant urinary incontinence
Journal article   Peer reviewed

The questionnaire for urinary incontinence diagnosis (QUID): validity and responsiveness to change in women undergoing non-surgical therapies for treatment of stress predominant urinary incontinence

Catherine S. Bradley, David D. Rahn, Ingrid E. Nygaard, Matthew D. Barber, Charles W. Nager, Kimberly S. Kenton, Nazema Y. Siddiqui, Robert B. Abel, Cathie Spino, Holly E. Richter, …
Neurourology and urodynamics, Vol.29(5), pp.727-734
0
06/01/2010
DOI: 10.1002/nau.20818
PMID: 19787711
url
http://deepblue.lib.umich.edu/bitstream/2027.42/77446/1/20818_ftp.pdfView
Open Access

Abstract

<p>AIMS: The Questionnaire for Urinary Incontinence Diagnosis (QUID), a 6-item urinary incontinence (UI) symptom questionnaire, was developed and validated to distinguish stress and urge UI. This study's objective was to evaluate QUID validity and responsiveness when used as a clinical trial outcome measure. METHODS: Participants enrolled in a multi-center trial of non-surgical therapy (continence pessary, pelvic floor muscle training or combined) for stress-predominant UI and completed baseline and 3-month diaries, the Urinary Distress Inventory (UDI) and QUID. Data from all treatment groups were pooled. QUID internal consistency (Cronbach's alpha) and convergent/discriminant validity (Pearson correlations) were evaluated. Responsiveness to change was assessed with 3-month score outcomes and distribution-based measurements. RESULTS: Four hundred forty-four women (mean age 50) were enrolled with stress (N = 200) and mixed (N = 244) UI; 344 had 3-month data. Baseline QUID Stress and Urge scores (both scaled 0-15, larger values indicating worse UI) were 8.4 +/- 3.2 and 4.5 +/- 3.3, respectively. Internal consistency of QUID Total, Stress, and Urge scores was 0.75, 0.64 and 0.87, respectively. QUID Stress scores correlated moderately with UDI-Stress scores (r = 0.68, P < 0.0001) and diary stress UI episodes (r = 0.41, P < 0.0001). QUID Urge scores correlated moderately with UDI-Irritative scores (r = 0.68, P < 0.0001) and diary urge UI episodes (r = 0.45, P < 0.0001). Three-month QUID Stress and Urge scores improved (4.1 +/- 3.4 and 2.2 +/- 2.7, both P < 0.0001). QUID Stress score effect size (1.3) and standardized response mean (1.2) suggested a large change after therapy. CONCLUSION: The QUID has acceptable psychometric characteristics and may be used as a UI outcome measure in clinical trials.</p>
Obstetrics and Gynecology Female Humans Middle Aged Prospective Studies Psychometrics Questionnaires Reproducibility of Results Urinary Incontinence Stress/diagnosis/therapy QUID UI UUI SUI

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