International braz j urol : official journal of the Brazilian Society of Urology
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To validate the Quality of Erection Questionnaire (QEQ) considering Brazilian social-cultural aspects. ⋯ The QEQ Portuguese version presented good psychometric properties and high convergent validity in relation to IIEF. The low correlations between the QEQ and the RAND-36, as well as between the IIEF and the RAND-36 indicated IIEF and QEQ specificity, which may have resulted from the patients' psychological adaptations that minimized the impact of ED on Quality of Life (QoL) and reestablished the well-being feeling.