Journal
INTERNATIONAL JOURNAL OF CLINICAL PRACTICE
Volume 61, Issue 8, Pages 1294-1300Publisher
BLACKWELL PUBLISHING
DOI: 10.1111/j.1742-1241.2007.01454.x
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Aims: Lower urinary tract symptoms (LUTS) are categorised as storage (urgency, frequency, nocturia and incontinence), voiding (sensation of incomplete emptying, hesitancy, weak stream and straining) or mixed symptoms. Methods: In this US population-based study, we investigated the prevalence of male LUTS and the relative frequency of the LUTS subtypes, and we evaluated associations between LUTS and age, race/ethnicity and erectile dysfunction (ED). The Male Attitudes Regarding Sexual Health study included a nationally representative sample of non-Hispanic black, non-Hispanic white and Hispanic men aged >= 40 years. Participants completed a questionnaire including items on ED and the International Prostate Symptom Score (IPSS). The prevalence and subtypes of LUTS were investigated post hoc by age, race/ethnicity and the presence of ED. Results: The overall prevalence rates of storage (13%) and mixed (9%) symptoms were higher than that of voiding symptoms (6%). The prevalence of storage symptoms was similar across age groups, whereas voiding and mixed symptoms increased with age. Among men with IPSS >= 8, the rates of storage (29%) and mixed (38%) symptoms were also higher than voiding symptoms (23%). Distributions of the LUTS subtypes were comparable among black, white and Hispanic respondents with IPSS >= 8. The overall prevalence rate of ED (40%) increased with age among those with IPSS >= 8. Isolated storage symptoms were more than twice as common as isolated voiding symptoms among US men >= 40 years of age. Conclusions: Careful attention to individual symptoms may help distinguish storage LUTS from voiding LUTS, a distinction that has important implications for treatment.
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