The natural history of lower urinary tract symptoms in black American men: relationships with aging, prostate size, flow rate and bothersomeness
Abstract
Studies of lower urinary tract symptoms in men have been restricted to predominately white populations and these observations may not be generalized to black American men. A goal of the Flint Men's Health Study was to evaluate the prevalence of lower urinary tract symptoms in a community based sample of black American men. We identified 721 eligible subjects after a 2-stage stratified sampling protocol of black American men residing in Flint, Michigan and an in-home interview. Of these men 364 (50%) completed the study protocol, including serum prostate specific antigen measurement, digital rectal examination, uroflowmetry and transrectal ultrasound. These men comprised our study group. Patients completed the American Urological Association (AUA) symptom and bothersomeness scores. Moderate to severe symptoms and impairment were defined as an AUA symptom score of greater than 7 and bothersomeness score of greater than 3, respectively. Data were stratified by 10-year age groups. Prostate volume increased, while the peak urinary flow rate decreased with increasing age (p <0.001). Total AUA symptom and bothersomeness scores were marginally associated with age (p = 0.08 and 0.01, respectively). Although only 8.2% of the men reported...Continue Reading
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