Epidemiological data have shown a high prevalence of erectile dysfunction (ED) worldwide, but estimations are difficult due to the range of definitions and screening tests for ED used.[5]Kessler A, Sollie S, Challacombe B, et al. The global prevalence of erectile dysfunction: a review. BJU Int. 2019 Oct;124(4):587-99.
http://www.ncbi.nlm.nih.gov/pubmed/31267639?tool=bestpractice.com
In the US, some degree of erectile difficulty is reported by half of men ages 40 to 70 years with an incidence rate of around 26 cases per 1000 man-years.[6]Feldman HA, Goldstein I, Hatzichristou DG, et al. Impotence and its medical and psychosocial correlates: results of the Massachusetts Male Aging Study. J Urol. 1994;151:54-61.
http://www.ncbi.nlm.nih.gov/pubmed/8254833?tool=bestpractice.com
[7]Johannes CB, Araujo AB, Feldman HA, et al. Incidence of erectile dysfunction in men 40 to 69 years old: longitudinal results from the Massachusetts male aging study. J Urol. 2000 Feb;163(2):460-3.
http://www.ncbi.nlm.nih.gov/pubmed/10647654?tool=bestpractice.com
The incidence and prevalence rates of ED increases with age.[5]Kessler A, Sollie S, Challacombe B, et al. The global prevalence of erectile dysfunction: a review. BJU Int. 2019 Oct;124(4):587-99.
http://www.ncbi.nlm.nih.gov/pubmed/31267639?tool=bestpractice.com
However, one study showed that one in four patients seeking first medical help for new onset ED was younger than 40 years.[8]Capogrosso P, Colicchia M, Ventimiglia E, et al. One patient out of four with newly diagnosed erectile dysfunction is a young man--worrisome picture from the everyday clinical practice. J Sex Med. 2013 Jul;10(7):1833-41.
http://www.ncbi.nlm.nih.gov/pubmed/23651423?tool=bestpractice.com
In one study of young (18 to 31 years) sexually active men, mild erectile dysfunction reported in 11.3% and 2.9% reported moderate-to-severe erectile dysfunction.[9]Calzo JP, Austin SB, Charlton BM, et al. Erectile dysfunction in a sample of sexually active young adult men from a U.S. cohort: demographic, metabolic and mental health correlates. J Urol. 2021 Feb;205(2):539-44.
http://www.ncbi.nlm.nih.gov/pubmed/32935616?tool=bestpractice.com
Race variation has been observed, in that Hispanic men were nearly twice as likely to have ED and develop the condition at younger ages.[10]Saigal CS, Wessells H, Pace J, et al. Predictors and prevalence of erectile dysfunction in a racially diverse population. Arch Intern Med. 2006 Jan 23;166(2):207-12.
https://jamanetwork.com/journals/jamainternalmedicine/fullarticle/409619
http://www.ncbi.nlm.nih.gov/pubmed/16432090?tool=bestpractice.com
However, this finding is not consistently supported.[11]Kupelian V, Link CL, Rosen RC, et al. Socioeconomic status, not race/ethnicity, contributes to variation in the prevalence of erectile dysfunction: results from the Boston Area Community Health (BACH) Survey. J Sex Med. 2008 Jun;5(6):1325-33.
http://www.ncbi.nlm.nih.gov/pubmed/18410305?tool=bestpractice.com