Prevalence

Worldwide

Aytaç, Mckinlay & Krane RJ. The likely worldwide increase in erectile dysfunction between 1995 and 2025 and some possible policy consequences.
BJU Int. 1999; 84:50-6.

Utilizing the United Nations projected male population distributions by age groups for 2025, the prevalence rates for ED were applied from the Massachusetts Male Aging Study to calculate the estimated prevalence of ED.

Epidemiology of erectile dysfunction in four countries: cross-national study of the prevalence and correlates of erectile dysfunction.¹

Prevalence of ED increased by 10% per year of age. Additionally, increased risk was associated with diabetes, heart disease, lower urinary tract symptoms, heavy smoking, and depression.¹

Prevalence increased with age from 2% in men 18 - 39 to 48% in men 70 years and older.²

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 including 23 studies from Europe (15), USA (5), Asia (2) and Australia (1). The subsequent estimates for prevalence of erectile dysfunction was 2% in men under 40 years of age, ranging to 86% for men 80 years and older.³

United States

U.S. Prevalence of ED is estimated to be between 15 - 30 million.
See studies and references below.

The National Institute of Diabetes & Digestive & Kidney Diseases (NIDDK) estimates that between 15 - 30 million men in the U.S. have erectile dysfunction. Approximately 5% of 40-year-old men between 15 and 25 percent of 65-year-old men experience ED.

Diseases of the prostate

Prevalence (1996): 2.803 million men (in the noninstitutionalized population)⁴

ED (impotence)

Incidence: 617,715 new cases (white men ages 40-69 only) annually15⁵
Estimated prevalence: 30 million men⁶

National Institute of Health (NIH)
NIH Consensus Statement 1992 Dec 7-9;10(4):1-31.

In a 1992 National Institutes of Health (NIH) Consensus Conference on Impotence estimated that between 10-20 million men in the U.S. have ED. That estimate jumps to 30 million with the inclusion of individuals with partial erectile dysfunction.

The majority of these men will be over 65, suggesting that the prevalence of ED is associated with age. A prevalence of approximately 5 % is observed at age 40, increasing to 15-25 % at age 65 and older.Impotence. NIH Consens Statement 1992 Dec 7-9;10(4):1-31.

Massachusetts Male Aging Study (MMAS) - Visit this site

Feldman HA, Goldstein I, Hatzichristou DG, Krane RJ, McKinlay JB: Impotence and its medical and psychosocial correlates: results of the Massachusetts Male Aging Study.. J Urol 1994 Jan; 151(1):54-61.

The Massachusetts Male Aging Study estimated the prevalence of all degrees of impotence at 52% (minimal at 17.2%, moderate at 25.5%, and complete at 9.6%).

Subject age was the variable most strongly associated with impotence. For example, the prevalence of complete impotence tripled from 5 to 15%, while moderate impotence increased from 17% to 34% for subjects between the ages of 40 and 70 years. The prevalence of minimal impotence remained constant at approximately 17% over the same age range.

Sources::

1. Nicolosi A, Moreira ED Jr, Shirai M, Bin Mohd Tambi MI, Glasser DB.: Epidemiology of erectile dysfunction in four countries: cross-national study of the prevalence and correlates of erectile dysfunction. Urology 2003 Jan;61(1):201-6
2. Parazzini F, Menchini Fabris F, Bortolotti A, Calabro A, Chatenoud L, Colli E., Landoni M, Lavezzari M,, Turchi P, Sessa A, Mirone V.: Frequency and determinants of erectile dysfunction in Italy Eur Urol 2000 Jan;37(1): 43-9
3. Pinnock CB, Stapleton AM, Marshall VR : Erectile dysfunction in the community: a prevalence study (South Australia), Med J Aust 1999 Oct 4; 171(7):353-7
4. Prins J, Blanker MH, Bohnen AM, Thomas S, Bosch JL: Prevalence of erectile dysfunction: a systematic review of population-based studies. Int J Impot Res 2002 Dec; 14(6):422-32
5. Current Estimates From the National Health Interview Survey, 1996. Atlanta, GA: National Center for Health Statistics (NCHS), Centers for Disease Control and Prevention (CDC), U.S. Dept. of Health and Human Services (DHHS); October 1999. Vital and Health Statistics. Series 10, No. 200.
6. Johannes CB, Araujo AB, Feldman HA, Derby CA, Kleinman KP, McKinlay JB. Incidence of erectile dysfunction in men 40 to 69 years old: longitudinal results from the Massachusetts Male Aging Study. Journal of Urology. 2000;163(2):460-463.
7. Impotence: National Institutes of Health Consensus Development Conference Statement. NIH, DHHS. December 7-9, 1992; 10(4):1-31. Available at http://odp.od.nih.gov/consensus/cons/091/091_statement.htm. Accessed November 21, 2001.

Additional Resources:

1. Edward O. Laumann, Anthony Paik, and Raymond C. Rosen: Sexual Dysfunction in the United States: Prevalence and Predictors
   JAMA 1999 281: 537-544.
2. Feldman HA, Goldstein I, Hatzichristou DG, Krane RJ, MCKINLAY JB: Construction of a Surrogate Variable for Impotence in the Massachusettes Male Aging Study, J. Clin Epidem 1994, 47: 457-467.
3. Jardin A, Wagner G, Khoury S, Giuliano G, Goldstein I, Padma-Nathan H, et al, eds.: Recommendations of the 1st International consultation on erectile dysfunction, cosponsored by the World Health Organization. Plymouth: Health Publications Ltd; 2000: 709-26
4. Kinsey AC, Pomeroy WB, and Martin CE: Sexual Bahavior in the Human Male. Philadelphia: WB Saunders, 1948.
5. Kongkanand A.: Prevalence of erectile dysfunction in Thailand. Thai Erectile Dysfunction Epidemiological Study Group, Int J Androl 2000; 23 Suppl 2:77-80.
6. Kubin M, Wagner G, Fugl-Meyer AR: Epidemiology of erectile dysfunction. Int J Impot Res 2003 Feb; 15(1): 63-71
7. Meuleman EJ, Donkers LH, Robertson C, Keech M, Boyle P, Kiemeney LA: Erectile dysfunction: prevalence and effect on the quality of life; Boxmeer study (Netherlands), Ned Tijdschr Geneeskd 2001 Mar 24; 145(12): 576-81
8. Marumo K, Nakashima J, Murai M: Age-related prevalence of erectile dysfunction in Japan: assessment by the International Index of Erectile Dysfunction.. Int J Urol 2001 Feb; 8(2):53-9
9. Nusbaum MR: Erectile dysfunction: prevalence, etiology, and major risk factors. J Am Osteopath Assoc 2002 Dec; 102(12 Suppl 4): S1-6
10. Spector IP and Carey MP: Incidence and Prevalence of the Sexual Dysfunctions: A Critical Review of the Empirical Literature. Arch Soc Behavior 1990, 19: 389-407.
11. McKinlay JB. The worldwide prevalence and epidemiology of erectile dysfunction, Int J Impot Res. 2000; 12 (suppl 4): S6-S11.
    This paper discusses the following:
    1. description of the worldwide prevalence of erectile dysfunction
    2. presents age-specific incidence rates for ED in the US
    3. summarizes some key epidemiologic correlates of ED in the general population.
    4. estimates the likely magnitude of ED that will accompany the worldwide globalization of aging.
    5. key predictors of incident ED, specifically vasculogenic influences, are identified and discussed.