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J Urol. 2020 Jan;203(1):164-170. doi: 10.1097/JU.0000000000000465. Epub 2019 Jul 31.

A New Brief Clinical Assessment of Lower Urinary Tract Symptoms for Women and Men: LURN SI-10.

Author information

1
Northwestern University Feinberg School of Medicine, Chicago, Illinois.
2
Arbor Research Collaborative for Health, Ann Arbor, Michigan.
3
National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, Maryland.
4
Medical College of Wisconsin, Milwaukee, Wisconsin.
5
University of Iowa Carver College of Medicine, Iowa City, Iowa.
6
Duke University Medical Center, Durham, North Carolina.
7
University of Michigan, Ann Arbor, Michigan.
8
NorthShore University Health System, Glenview, Illinois.

Abstract

PURPOSE:

Lower urinary tract symptoms are common in men and women. Members of the LURN (Lower Urinary Tract Dysfunction Research Network) sought to create a brief, clinically relevant tool to improve existing measurements of lower urinary tract symptoms in men and women.

MATERIALS AND METHODS:

Using a modified Delphi methodology during an expert consensus meeting we reduced the LURN CASUS (Comprehensive Assessment of Self-Reported Urinary Symptoms) questionnaire to a brief set of clinically relevant items measuring lower urinary tract symptoms. The sum score of these items was evaluated by comparing it to the AUA SI (American Urological Association Symptom Index), the UDI-6 (Urinary Distress Inventory Short Form) in women only and the CASUS lower urinary tract symptoms screening questions using the Pearson correlation, regression analysis and ROC curves.

RESULTS:

The LURN SI-10 (10-Item LURN Symptom Index) assesses urinary frequency, nocturia, urgency, incontinence, bladder pain, voiding and post-micturition symptoms (score range 0 to 38). The correlation between LURN SI-10 and AUA SI scores was 0.77 in men and 0.70 in women. The UDI-6 and the LURN SI-10 correlated highly in women (r=0.76). The LURN SI-10 showed good accuracy to predict moderate and severe lower urinary tract symptoms as defined by the AUA SI (ROC AUC range 0.82-0.90). Similar accuracy was shown in predicting different levels of symptom status using the UDI-6 (AUC range 0.84-0.86).

CONCLUSIONS:

The LURN SI-10 correlates well with the AUA SI and the UDI-6. It includes items related to a broader spectrum of lower urinary tract symptoms, particularly incontinence, bladder pain and post-micturition symptoms, and it applies to men and women.

KEYWORDS:

female; lower urinary tract symptoms; male; patient reported outcome measures; urinary bladder

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