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Voiding frequency in a sample of asymptomatic American men
Jerilyn M Latini1, Elizabeth Mueller, Matthew M Lux
1Departments of Urology, University of Iowa, Iowa City, IA, USA. jerilati@med.umich.edu
The Journal of Urology
|August 18, 2004
Summary
Urinary habits in asymptomatic American men show significant variability. Many men void more than 8 times daily, suggesting current frequency thresholds may need reevaluation.
Area of Science:
- Urology
- Men's Health
- Voiding Dysfunction
Background:
- Limited data exists on typical urinary habits in asymptomatic American men.
- Understanding normal voiding patterns is crucial for diagnosing lower urinary tract symptoms.
Purpose of the Study:
- To characterize the 24-hour urinary habits of asymptomatic American men.
- To identify factors influencing urinary frequency and nocturia in this population.
Main Methods:
- 284 asymptomatic men (18-66 years) completed the International Prostate Symptom Score (I-PSS) and a 24-hour voiding diary.
- Data were analyzed using multivariate linear and logistic regression.
Main Results:
- Median voiding frequency was 7 times/24 hours (95% <12).
- Urinary frequency correlated with urine volume and fluid intake; nocturia related to nighttime diuresis.
- I-PSS increased with age and BMI, and was lower in white men.
Conclusions:
- The threshold of 8 voids/24 hours may not accurately define abnormal frequency in asymptomatic men.
- Normative values for urinary habits should consider regional climate and population variations.