Epidemiology & Treatment of Erectile Dysfunction

Epidemiology Overview
Erectile dysfunction is a highly prevalent condition that increases with age and comorbid disease burden. Population-based studies estimate that over 150 million men worldwide experience some degree of ED, with projections exceeding 300 million by 2025. The Massachusetts Male Aging Study (MMAS) remains one of the most cited epidemiologic investigations, demonstrating that approximately half of men between 40 and 70 years experience some degree of erectile difficulty. Prevalence is strongly associated with cardiovascular disease, diabetes, obesity, and smoking - highlighting ED as both a quality-of-life concern and a potential early marker of systemic vascular disease.

Key Epidemiologic Points:

• Global prevalence estimated at 150 million men in 1995, projected to rise to 322 million by 2025 (Ayta et al., BJU Int, 1999)
• In the Massachusetts Male Aging Study, 52% of men aged 40–70 reported some degree of ED (Feldman et al., J Urol, 1994)
• In the European Male Ageing Study (EMAS), they found that 30% of the cohort reported moderate or severe erectile dysfunction and similarly identified that prevalence increased with age (Corona et al., 2010)
• The National Health and Social Life Survey was a probability sample study of sexual behavior looking at critical components of sexual health and identified that their oldest cohort of men (ages 50 - 59) were 3 times more likely to experience erection problems compared to the younger cohort (ages 18-29 years) (Laumann et al., 1999)
• The prevalence of erectile dysfunction among men with diabetes exceeds 50%, and the condition demonstrates a significant association with hypertension, hyperlipidemia, and smoking (Selvin et al., Ann Intern Med, 2007)
• ED often precedes symptomatic coronary artery disease by 2–5 years, serving as a sentinel marker for endothelial dysfunction (Montorsi et al., Eur Urol, 2003)
• There is a paucity of incidence data, but in an epidemiologic review, the crude incidence of erectile dysfunction has been found to be 25.9 - 65.6 cases per 1000 man years. Unsurprisingly, in these studies, incidence increased with age (Hatzimouratidis, 2007). 

Reference

• Hatzimouratidis K. Epidemiology of male sexual dysfunction. Am J Mens Health. 2007 Jun;1(2):103-25. doi: 10.1177/1557988306298006. PMID: 19482788.