Minoru Miyazato1, Koji Yonemoto2,3, Asuka Ashikari1, Seiichi Saito1, Kiyoto Yamashiro4,5, Moriyuki Uehara4,5, Hiroaki Masuzaki5, Hajime Ishida6, Masayuki Matsushita7. 1. Department of Urology, Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan. 2. Advanced Medical Research Center, Faculty of Medicine, University of the Ryukyus, Okinawa, Japan. 3. Division of Biostatistics, School of Health Sciences, Okinawa, Japan. 4. Kumejima Public Hospital, Okinawa, Japan. 5. Division of Endocrinology, Diabetes and Metabolism, Hematology, Rheumatology (Second Department of Medicine), Okinawa, Japan. 6. Department of Human Biology and Anatomy, University of the Ryukyus, Okinawa, Japan. 7. Department of Molecular and Cellular Physiology, University of the Ryukyus, Okinawa, Japan.
Abstract
AIM: To validate a novel digital health monitoring system to measure the volume of voided urine. METHODS: Micturition volume was calculated using our novel digital self-health monitoring system of urine excretion (s-HMSU) in 18 participants (16 women and 2 men; average age, 40.8 years), without a history of voiding symptoms. Participants completed a self-reported questionnaire regarding their medical history and water intake during the period of observation, as well as the Core Lower Urinary Tract Symptom Score (CLSS) questionnaire. To assess the reliability of the voided volumes measured using the s-HMSU, the intraclass correlation coefficient (ICC) was calculated between the volume and the change in body weight before and after micturition. RESULTS: The CLSS questionnaire confirmed the absence of urinary system diseases in all participants. The medical history was also negative with the exception of hypertension in one participant. The ICC (1,1) between the measured volume of urine excretion using the s-HMSU and the change in body weight was 0.972 (95% confidence interval, 0.957-0.982). CONCLUSIONS: The s-HMSU system provides a reliable measure of voiding volume and is appropriate for home use. It has the potential to facilitate large-scale clinical research to examine the relationship between medical diseases and voiding dysfunction.
AIM: To validate a novel digital health monitoring system to measure the volume of voided urine. METHODS: Micturition volume was calculated using our novel digital self-health monitoring system of urine excretion (s-HMSU) in 18 participants (16 women and 2 men; average age, 40.8 years), without a history of voiding symptoms. Participants completed a self-reported questionnaire regarding their medical history and water intake during the period of observation, as well as the Core Lower Urinary Tract Symptom Score (CLSS) questionnaire. To assess the reliability of the voided volumes measured using the s-HMSU, the intraclass correlation coefficient (ICC) was calculated between the volume and the change in body weight before and after micturition. RESULTS: The CLSS questionnaire confirmed the absence of urinary system diseases in all participants. The medical history was also negative with the exception of hypertension in one participant. The ICC (1,1) between the measured volume of urine excretion using the s-HMSU and the change in body weight was 0.972 (95% confidence interval, 0.957-0.982). CONCLUSIONS: The s-HMSU system provides a reliable measure of voiding volume and is appropriate for home use. It has the potential to facilitate large-scale clinical research to examine the relationship between medical diseases and voiding dysfunction.