State University of New York Downstate Medical Center, Brooklyn, New York; Institute for Bladder and Prostate Research, New York, New York.
J Urol. 2013 Nov;190(5):1787-90. doi: 10.1016/j.juro.2013.05.055. Epub 2013 May 30.
We analyzed the correlation between pad use, as determined by objective pad count, and the severity of urinary incontinence, as measured by pad weight.
We performed a retrospective study of consecutive incontinent patients who wore pads on a daily basis and were instructed to complete a 24-hour pad test. They were told to use the usual pads, change them as usual and place each in a separate plastic bag the day before the scheduled appointment. All pads were weighed and total urine loss was calculated by subtracting dry pad weight from wet pad weight, assuming that a 1 gm weight increase was equivalent to 1 ml of urine loss. The number of pads was correlated to pad weight using the Spearman rank correlation coefficient due to the nonparametric nature of the data.
The 116 patients included 51 men 39 to 89 years old (mean age 66) and 65 women 27 to 95 years old (mean age 72). When comparing the number of pads used to the gm of urine lost, the Spearman ρ was 0.26 (p=0.005) in the total cohort, and 0.40 and 0.26 (each p<0.05) in males and females, respectively.
There was little correlation between the number of pads used and the severity of urinary incontinence (r=0.26). These data suggest that pad count should not be used as an objective measure of incontinence severity. Instead, pad weight on a 24-hour pad test should be used.
我们分析了垫使用量(通过客观的垫计数确定)与尿失禁严重程度(通过垫重量测量)之间的相关性。
我们对每天使用垫且被指示完成 24 小时垫试验的连续失禁患者进行了回顾性研究。患者被要求使用通常的垫,按常规更换并在预约前一天将每个垫放入单独的塑料袋中。所有垫都称重,通过从湿垫重量中减去干垫重量来计算总尿量损失,假设每增加 1 克重量相当于 1 毫升尿量损失。由于数据的非参数性质,使用 Spearman 等级相关系数将垫的数量与垫重量相关联。
116 名患者包括 51 名男性(39 至 89 岁;平均年龄 66 岁)和 65 名女性(27 至 95 岁;平均年龄 72 岁)。在将使用的垫数量与丢失的 gm 尿液进行比较时,总队列的 Spearman ρ值为 0.26(p=0.005),男性和女性分别为 0.40 和 0.26(均 p<0.05)。
使用的垫数量与尿失禁严重程度之间几乎没有相关性(r=0.26)。这些数据表明,垫计数不应用作尿失禁严重程度的客观测量。相反,应使用 24 小时垫试验的垫重量。