Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/235874
Type: Artigo de periódico
Title: Validation Of Portuguese Version Of Quality Of Erection Questionnaire (qeq) And Comparison To International Index Of Erectile Function (iief) And Rand 36-item Health Survey.
Author: Reis, Ana Luiza
Reis, Leonardo Oliveira
Saade, Ricardo Destro
Santos, Carlos Alberto
Lima, Marcelo Lopes de
Fregonesi, Adriano
Abstract: To validate the Quality of Erection Questionnaire (QEQ) considering Brazilian social-cultural aspects. To determine equivalence between the Portuguese and the English QEQ versions, the Portuguese version was back-translated by two professors who are native English speakers. After language equivalence had been determined, urologists considered the QEQ Portuguese version suitable. Men with self-reported erectile dysfunction (ED) and infertile men who had a stable sexual relationship for at least 6 months were invited to answer the QEQ, the International Index of Erectile Function (IIEF) and the RAND 36-Item Health Survey (RAND-36). The questionnaires were presented together and answered without help in a private room. Internal consistency (Cronbach's α), test-retest reliability (Spearman), convergent validity (Spearman correlation) coefficients and known-groups validity (the ability of the QEQ Portuguese version to differentiate erectile dysfunction severity groups) were assessed. We recruited 197 men (167 ED patients and 30 non-ED patients), mean age of 53.3 and median of 55.5 years (23-82 years). The Portuguese version of the QEQ had high internal consistency (Cronbach α=0.93), high stability between test and retest (ICC 0.83, with IC 95%: 0.76-0.88, p<0.001) and Spearman correlation coefficient r=0.82 (p<0.001), which demonstrated the high correlation between the QEQ and IIEF results. The correlations between the QEQ and RAND-36 were significantly low in ED (r=0.20, p=0.01) and non-ED patients (r=0.37, p=0.04). 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.
Subject: Adult
Aged
Aged, 80 And Over
Brazil
Cross-cultural Comparison
Erectile Dysfunction
Humans
Language
Male
Middle Aged
Penile Erection
Personal Satisfaction
Psychometrics
Quality Of Life
Reproducibility Of Results
Severity Of Illness Index
Statistics, Nonparametric
Surveys And Questionnaires
Translations
Young Adult
Citation: International Braz J Urol : Official Journal Of The Brazilian Society Of Urology. v. 41, n. 1, p. 155-167
Rights: fechado
Identifier DOI: 
Address: http://www.ncbi.nlm.nih.gov/pubmed/25928522
Date Issue: -1-Uns- -1
Appears in Collections:Unicamp - Artigos e Outros Documentos

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