A study of men in a rural community in Brazil revealed an extremely low prevalence of erectile dysfunction (ED).
Joaquim De Almeida Claro, MD, and his colleagues at the Federal University of São Paulo studied 2,000 men aged 20 years and older (mean age 33.2 years) in an isolated town in southeastern Brazil. All had completed survey questionnaires, including the International Index of Erectile Dysfunction.
One researcher—the same in all encounters—interviewed all of the men. Of the 2,000 men, only 34 (1.7%) had at least some degree of ED, a prevalence much lower than reported previously in Brazil and worldwide, according to a report in BJU International (2006;Epub ahead of print). In Brazil, data from a large, randomly sampled population-based survey indicated that 46% of men reported ED (Urology. 2001;58:583-588).
“Possibly the impressively low prevalence rate of ED is related to the particular lifestyle of people in this region of Brazil,” the investigators wrote. “The town is remote from any large city, life is still very calm, with dairy products and fruit forming the basis of the diet.”