Prevalence of erectile dysfunction as defined by the International Index of Erectile Function (IIEF) and self-reported erectile dysfunction in a sample of Brazilian men who consider themselves healthy
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Updated: Jun 17, 2026

Treatment Model for Young Patients with Psychogenic Erectile Dysfunction and Resultant Infertility
Published on: May 30, 2025
Margareth de Mello Ferreira Reis1, Carmita Helena Najjar Abdo
1Experimental Physiopathology, Universidade de Sao Paulo, Sao Paulo, Brazil. margarethreis@uol.com.br
Abstract:
A cross-sectional study was carried out with 288 male blood donors, aged between 40 and 60 years old, with the aim of comparing the prevalence of erectile dysfunction (ED) as defined by the International Index of Erectile Function (IIEF) and that resulting from the simple questioning of the presence of ED. Socio-demographic, clinical, and behavioral factors that are associated with the presence of ED were considered. Erectile dysfunction prevalence in the IIEF was 31.9%, while self-reported ED prevalence was 3.1%. The factors associated to ED, as reported by the IIEF were: professional inactivity, suspected depression and/or anxiety, reduced sexual desired, and self-reported ED.
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