• Na Zhang, Hairong He, Jianfen Zhang, Ruixin Chi, Yinbin Li, Yue Zhang, Yi Yang, Pengyu Sun, and Guansheng Ma.
• Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing, China.
• Int. J. Clin. Pract. 2021 Aug 1; 75 (8): e14285.

AimTo investigate the urination behaviours of senior citizens in China.MethodsStratified random sampling was used to recruit senior citizens who met the inclusion criteria from five cities in China. After training by researchers, participants recorded their urination behaviours in real time by using the validated 7-day 24-hour urination behaviour record, which consisted of frequency of urination, time of urination, urinary urgency and urine colour.ResultsOf the 551 recruited participants, 524 (233 male and 291 female) completed the survey, yielding a completion rate of 95.1%. The median frequency of urination was 7.4 times per day. The frequency of urination was highest among participants in Guangzhou, at 8.0 times per day (χ2  = 29.356; P < .001), and participants in the first percentile body mass index group, at 8.0 times per day (χ2  = 10.344; P = .016). The percentage of participants who urinated >7 times during the day was 44.3%. The percentage of participants who urinated ≥1 time at night was 77.5%. The number of times participants reported feeling no urge to urinate, a strong urge to urinate and an uncomfortable urge to urinate accounted for 59.7%, 62.8% and 24.8% of all records of urinary urgency, respectively. Instances of patients having no urge to urinate, a strong urgent to urinate and an uncomfortable urge accounted for 16.1%, 13.3% and 2.9% of all instances of urination, respectively. The number of times participants whose urine was yellow and dark yellow accounted for 69.1% and 18.9% of all records of urine colour, respectively. Urine with yellow and dark yellow colour accounted for 13.0% and 1.5%, respectively.ConclusionUnhealthy urination behaviours, including urinating at night and holding back urine, were common among senior citizens. This result can provide information for the prevention and control of urinary system diseases.© 2021 John Wiley & Sons Ltd.

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