Reference values for urinary flow rate in elderly women: based on a national multicenter study
10.3760/cma.j.issn.0254-9026.2023.12.003
- VernacularTitle:老年女性尿流率参考值：基于全国多中心研究
- Author:
Xiaodong LIU
1
;
Lingfeng MENG
;
Jiawen WANG
;
Tianming MA
;
Jingchao LIU
;
Hai HUANG
;
Qingwei WANG
;
Min CHEN
;
Limin LIAO
;
Hong SHEN
;
Zhongqing WEI
;
Yuansong XIAO
;
Tiejun PAN
;
Jian REN
;
Peng ZHANG
;
Xiaojun TIAN
;
Benkang SHI
;
Yaoguang ZHANG
Author Information
1. 北京医院泌尿外科 国家老年医学中心 中国医学科学院老年医学研究院，北京 100730
- Keywords:
Urination;
Urodynamics;
Reference values;
Multicenter study
- From:
Chinese Journal of Geriatrics
2023;42(12):1406-1410
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To collect data on urinary flow rate in the elderly female population across the country and to analyze the range of reference values.Methods:This study enrolled 333 subjects from July 2020 to June 2022.The study implementation process was divided into two steps.In the first step, subjects completed an electronic questionnaire, which included basic information about the subject, a short form for urinary incontinence, and a scoring form for the symptoms of overactive bladder syndrome.In the second step, the staff introduced the use of a mobile uroflowmetric device and distributed the instrument and materials.Uroflow rate data were automatically uploaded to a cloud database via the mobile phone.Subsequently, two or more physicians specializing in urinary control performed Uroflow rate-qualifying screenings and conducted statistical analyses.Results:A total of 333 subjects were enrolled in the study, and the researchers collected 1375 qualified urine flow rate records using a mobile urine flow rate instrument.The age of the subjects ranged from 60 to 84 years, with a mean age of 69 years.The reference ranges for urinary flow rate were found to be 24.8-26.2 s, with a mean urinary flow rate of 12.2-12.9 ml/s, a maximum urinary flow rate of 22.2-23.4 ml/s, and a time to peak of 8.5-9.7 s. The study observed a tendency for both maximal and mean urinary flow rates to decrease in older women as their age increased(Pearson correlation coefficient: -0.1, P<0.001). Conclusions:The uroflow rate of older women decreases with aging.Specifically, the average uroflow rate of women over 80 years old is lower than that of other age groups.This study aims to establish normal uroflow parameters for uroflowmetry in healthy older women in China.
