To determine whether evaluation of the first occurring symptom and bother of mixed urinary incontinence (MUI) might help in the clinical assessment of incontinent women.
Prospective observational study carried out in a tertiary referral urogynaecology unit in London. Women who underwent urodynamic investigations for MUI were asked whether stress or urgency incontinence was the first occurring symptom and which was the most bothersome one. Sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) for the first occurring symptom and most bothersome component of their mixed urinary incontinence symptoms in relation to the urodynamic diagnosis were calculated.
One hundred and eighty women with MUI were studied. Initial or most bothersome urgency urinary incontinence (UUI) had a good specificity and PPV for diagnosing detrusor overactivity (DO). When UUI was the initial and most bothersome symptom the specificity and NPV increased up to 93% and 73%. Stress urinary incontinence (SUI) as first occurring or most bothersome had a moderate specificity, PPV and NPV for diagnosing urodynamic stress incontinence (USI). When SUI was the initial and most bothersome symptom the specificity, PPV and NPV increased up to 91%, 70% and 78%. Initial or most bothersome UUI with antecedent or most bothersome SUI had a high specificity and good NPV for a mixed urodynamic diagnosis of DO and USI.
Determination of the first occurring and most bothersome symptom in women with MUI relates closely to the urodynamic diagnosis. Therefore, our symptom-guided approach may in some cases provide useful information directing the clinician towards a more appropriate therapy when urodynamics are inconclusive or cannot be performed.
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Published online: October 16, 2013
Accepted: September 28, 2013
Received in revised form: October 3, 2012
Received: August 11, 2012
© 2013 Elsevier Ireland Ltd. Published by Elsevier Inc. All rights reserved.