A systematic review was conducted on the prevalence of erectile dysfunction (ED) in
the general population. Studies were retrieved which reported prevalence rates of
ED in the general population. Using a specially developed criteria list, the methodological
quality of these studies was assessed and data on prevalence rates were extracted.
We identified 23 studies from Europe (15), USA (5), Asia (2) and Australia (1). On
our 12-item criteria list, the methodological quality ranged from 5 to 12. The prevalence
of ED ranged from 2% in men younger than 40 y to 86% in men 80 y and older. Comparison
between prevalence data is hampered by major methodological differences between studies,
particularly in the use of various questionnaires and different definitions of ED.
We stress the importance of providing all necessary information when reporting on
the prevalence of ED. Moreover, international studies should be conducted to establish
the true prevalence of ED across countries.