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Timed micturition and maximum urinary flow rate in randomly selected symptom-free males
Linköping University, Faculty of Health Sciences. Linköping University, Department of Biomedicine and Surgery, Division of surgery. Östergötlands Läns Landsting, Centre of Surgery and Oncology, Department of Urology in Östergötland.
Linköping University, Faculty of Health Sciences. Linköping University, Department of Biomedicine and Surgery, Division of surgery. Östergötlands Läns Landsting, Centre of Surgery and Oncology, Department of Urology in Östergötland.
2004 (English)In: Scandinavian Journal of Urology and Nephrology, ISSN 0036-5599, E-ISSN 1651-2065, Vol. 38, no 2, 136-142 p.Article in journal (Refereed) Published
Abstract [en]

Objective: To establish normal ranges for timed micturition, i.e. the time to void the first 100 ml, study its dependency on voided volume and age and compare it to maximum flow rate. Material and Methods: Randomly selected men from the National Register without voiding symptoms were investigated. These 58 men (aged 30-75 years) registered 1286 voidings (median 21 per person) at home with the aid of a portable uroflowmeter. Timed micturition and maximum flow rate were obtained from the same voidings. Results: An increase in timed micturition with an increase in age was confirmed. When estimating normal ranges it was sufficient to use the age groups ≤55 years and ≥56 years. Maximum flow rate is shown in nomograms with voided volume. Timed micturition had less dependency on voided volume than maximum flow rate. The normal ranges of timed micturition are ≤9 s for men aged ≤55 years and ≤15 s for those aged ≥56 years. The true median of timed micturition for men aged ≥56 years may be 6 s lower or 2.5 s higher than the value of a single measurement. Corresponding figures for maximum flow rate are 5 and 6 ml/s. Conclusions: Timed micturition has a low dependency on volume and values of ≤9 s and ≤15 s are normal for men aged ≤55 years and ≥56 years, respectively.

Place, publisher, year, edition, pages
2004. Vol. 38, no 2, 136-142 p.
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:liu:diva-23584DOI: 10.1080/00365590310001737Local ID: 3068OAI: oai:DiVA.org:liu-23584DiVA: diva2:243899
Available from: 2009-10-07 Created: 2009-10-07 Last updated: 2017-12-13

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Folkestad, BengtSpångberg, Anders

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Folkestad, BengtSpångberg, Anders
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Faculty of Health SciencesDivision of surgeryDepartment of Urology in Östergötland
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