Department of Urology, University College London Hospital at Westmoreland Street, University College London Hospital NHS Foundation Trust, London, United Kingdom.
Department of Urology, Guy's and St Thomas' NHS Trust, London, United Kingdom.
Neurourol Urodyn. 2020 Nov;39(8):2442-2446. doi: 10.1002/nau.24510. Epub 2020 Sep 17.
To investigate typical pad weight gain (PWG) in asymptomatic women who have never reported any episodes of urinary incontinence.
An observational study was performed by measuring the increase in weight of small sanitary pads worn by 35 healthy, female volunteers of a median age 36 (range, 23-56) years. Each pad was worn for a minimum of 5 h which is the typical maximum duration of an ambulatory urodynamics study.
The median duration of pad wear was 6 h (interquartile range [IQR], 5-8). The median PWG was 0.111 g (IQR, 0.047-0.255). The maximum recorded PWG was 0.621 g and the minimum was 0.012 g. PWG was not significantly affected by age, parity, years since last delivery, body mass index, or menopausal status.
PWG over a median duration of 6 h (IQR, 5-8) is typically <0.7 g in women who are asymptomatic of urinary incontinence. Therefore, PWGs in excess of 0.7 g over a 5-h ambulatory urodynamics study in symptomatic women are likely to be diagnostic of urinary incontinence.
研究从未报告过任何尿失禁发作的无症状女性的典型垫重量增加（PWG）。
通过测量 35 名健康女性志愿者所穿的小卫生垫的重量增加来进行观察性研究，这些志愿者的中位年龄为 36 岁（范围 23-56 岁）。每个垫子的佩戴时间至少为 5 小时，这是典型的门诊尿动力学研究的最长时间。
垫佩戴的中位时间为 6 小时（四分位间距 [IQR]，5-8）。PWG 的中位数为 0.111g（IQR，0.047-0.255）。记录的最大 PWG 为 0.621g，最小为 0.012g。PWG 不受年龄、产次、上次分娩后年限、体重指数或绝经状态的影响。
在无症状尿失禁的女性中，中位时间为 6 小时（IQR，5-8）的 PWG 通常<0.7g。因此，在有症状的女性中，超过 5 小时的门诊尿动力学研究中 PWG 超过 0.7g 可能是尿失禁的诊断指标。
