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Test-Retest Reliability of the Cough Stress Test in the Evaluation of Urinary Incontinence

From the Department of Obstetrics and Gynecology, Medical University of South Carolina, Charleston, South Carolina.

Address reprint requests to: Steven E. Swift, MD, Department of Obstetrics and Gynecology, Medical University of South Carolina, 171 Ashley Avenue, Charleston, SC 29425

Objective: To determine the test-retest reliability of the cough stress test in women who present with complaints of urinary incontinence.

Methods: This prospective observational study involved 50 women between the ages of 28 and 78 years with primary complaints of urinary incontinence. All subjects underwent a pelvic examination, cystometrogram, and a cough stress test. The cough stress test was performed in the standing position at a bladder volume of 300 mL or at maximum cystometric capacity if it was less than 300 mL. The results of the cough stress test were recorded as positive if urine loss occurred with a cough or as negative if no urine loss was seen and the bladder volume was recorded. The women returned in 1–4 weeks for a second cough stress test performed at the same bladder volume as at the initial examination.

Results: Of the 50 women studied, 45 (90%) had similar results with both cough stress tests. Thirty-five had a positive cough stress test on the initial examination, and 32 of these patients (91%) also had a positive cough stress test at a repeat visit. Fifteen patients had a negative initial cough stress test, and 13 of these 15 (87%) had a negative cough stress test on repeat examination. All 20 patients diagnosed as having pure genuine stress incontinence had a positive cough stress test on initial and repeat examinations. Of the 15 patients diagnosed with detrusor instability or sensory urge incontinence, 13 (86%) had negative cough stress tests on initial and repeat examinations. Of the 15 patients diagnosed with mixed incontinence, 12 (80%) had positive cough stress tests on initial and repeat examinations.

Conclusion: The cough stress test appears to be a reliable test. The reliability is more consistent in women with a diagnosis of pure genuine stress incontinence.

This article has been cited by other articles:

				J. M. Holroyd-Leduc, C. Tannenbaum, K. E. Thorpe, and S. E. Straus What Type of Urinary Incontinence Does This Woman Have? JAMA, March 26, 2008; 299(12): 1446 - 1456. [Abstract] [Full Text] [PDF]