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The optimal threshold values for the severity of urinary incontinence based on the 1‐hour pad test
Author(s) -
Li Bin,
Zhu Lan,
Xu Tao,
Lang Jinghe
Publication year - 2012
Publication title -
international journal of gynecology and obstetrics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.895
H-Index - 97
eISSN - 1879-3479
pISSN - 0020-7292
DOI - 10.1016/j.ijgo.2012.03.032
Subject(s) - medicine , urinary incontinence , cutoff , spearman's rank correlation coefficient , urology , rank correlation , correlation , urinary system , receiver operating characteristic , surgery , statistics , physics , geometry , mathematics , quantum mechanics
Objective To explore the correlation between the 1‐hour pad test and Stamey incontinence grading and to obtain the optimal threshold values for the severity of urinary incontinence. Methods In a cross‐sectional retrospective study at Peking Union Medical College Hospital, 1‐hour pad test results and Stamey grades of female patients who had undergone therapy for urinary incontinence between June 2005 and December 2010 were reviewed. The correlation between the objective and subjective measurements was assessed via a Spearman rank correlation test. The optimal diagnostic threshold was evaluated by ROC curve, and areas under the ROC curve reflected the accuracy of the 1‐hour pad test. Results A strong positive correlation was found between the 1‐hour pad test results and the subjective grades of 320 patients (correlation coefficient 0.757, P < 0.001). On the basis of the 1‐hour pad test, the optimal diagnostic cutoff points for the severity of urinary incontinence were 3.4 g and 10.2 g. Conclusion The 1‐hour pad test could assess the severity of urinary incontinence accurately. The threshold values should be, approximately, less than 3 g for mild, 3–10 g for moderate, and more than 10 g for severe urinary incontinence.