Reproducibility of the seven-day voiding diary in women with stress urinary incontinence

In this study we aimed to assess the reproducibility of the 7-day voiding d iary in women with stress urinary incontinence. We compared two 7-day voidi ng diaries completed at 4-week intervals by 138 women with stress urinary i ncontinence enrolled in an interventional trial. The correlation coefficien t for the number of weekly incontinence episodes between the two diaries wa s 0.831. For 280 voiding diaries the results of the first 3 days correlated well with results of the last 4 days (r- = 0.887). The number of incontine nce episodes, as recorded on a 7-day voiding diary, is a reproducible outco me measure in women with stress urinary incontinence. Results from the firs t 3 days of a diary correlate well with the last 4 days, suggesting that a 3-day diary is an appropriate outcome measure for clinical trials evaluatin g treatments for stress incontinence.