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. 2018 Mar;218(3):357-359.
doi: 10.1016/j.ajog.2017.12.219. Epub 2017 Dec 26.

Use of Euclidean length to measure urinary incontinence severity based on the lower urinary tract symptoms tool

Margaret E Helmuth  1 , Abigail R Smith  2 , Victor P Andreev  1 , Gang Liu  1 ; LURN Study Group  1 ; H Henry Lai  3 , Anne P Cameron  4 , Nazema Y Siddiqui  5
Affiliations

Use of Euclidean length to measure urinary incontinence severity based on the lower urinary tract symptoms tool

Margaret E Helmuth et al. Am J Obstet Gynecol. 2018 Mar.
No abstract available

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Conflict of interest statement

Disclosure Statement

The authors report no conflict of interest.

Figures

Figure
Figure
(a) Example of Euclidean length (EL) summarizing responses for two questions (16c & 16d) for two hypothetical patients. One has scores (2, 2) on the two questions (sum [of legs] =4, EL[lengthofhypotenuse]=22+22=8=2.8), the other has scores (1, 3) (sum=4, EL=32+12=10=3.2). The higher maximum score (3) for the second patient leads to a higher urinary incontinence severity based on Euclidean length. (b) Weights for Urinary Incontinence (UI) severity calculation; to account for correlation among questions, items with higher correlations to each other are given lower weights; (c) Comparison of Urinary Incontinence (UI) severity calculated as the weighted Euclidean length of seven Lower Urinary Tract Symptoms (LUTS) Tool questions and the sum of the seven questions. Euclidean length differentiates patterns of urinary incontinence that result in the same sum, e.g. participants with responses of (1, 1, 1, 1, 0, 0, 1, point 1) and (1, 0, 0, 4, 0, 0, 0, point 2) both have a summed score of 5 but weighted Euclidean lengths of 2 and 4.1, respectively, so that Euclidean length scores for patients with several minimal symptoms result in lower severity scores than for patients with a few severe symptoms. (d) Comparison of Urinary Incontinence (UI) severity calculated as the weighted Euclidean length of seven Lower Urinary Tract Symptoms (LUTS) Tool questions and the International Consultation on Incontinence Questionnaire (ICIQ) – UI score.
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References

    1. Coyne KS, Sexton CC, Thompson CL, et al. The prevalence of lower urinary tract symptoms (LUTS) in the USA, the UK, and Sweden: results from the Epidemiology of LUTS (EpiLUTS) study. BJU Int. 2009;104:352–360. - PubMed
    1. Cameron AP, Lewicky-Gaupp C, Smith AR, et al. Baseline lower urinary tract symptoms in patients enrolled in the Symptoms of Lower Urinary Tract Dysfunction Research Network (LURN): a prospective, observational cohort study. J Urol. 2017 Oct 27; doi: 10.1016/j.juro.2017.10.035. Epub ahead of print. - DOI - PMC - PubMed
    1. Copes WS, Champion HR, Sacco WJ, et al. Progress in characterizing anatomic injury. J Trauma. 1990;30:1200–1207. - PubMed
    1. Avery K, Donovan J, Peters TJ, Shaw C, Gotoh M, Abrams P. ICIQ: a brief and robust measure for evaluating the symptoms and impact of urinary incontinence. Neurourol Urodyn. 2004;23:322–330. - PubMed
    1. Albo M, Wruck L, Baker J, et al. The relationships among measures of incontinence severity in women undergoing surgery for stress urinary incontinence. J Urol. 2007;177:1810–1814. - PubMed

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