An important risk factor in the development of benign prostatic hypertrophy (BPH) among Americans is:
a. recurrent prostatitis.
b. a diet high in fat.
c. cigarette smoking.
d. increased age.
ANS: D
Prevalence in the United States is about 50% in men 60 years and older and 90% among men 70 years or older. BPH is common and involves a complex pathophysiology with several endocrine and local factors and remodeled microenvironment, but its relationship to aging is well docu-mented. Risk factors for BPH do not include prostatitis, a diet high in fat, or cigarette smoking.
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