Document Detail

Validation of the erection hardness score.
MedLine Citation:
PMID:  17888069     Owner:  NLM     Status:  MEDLINE    
INTRODUCTION: Erection hardness is a fundamental component of erectile function, and is a very specific and easily monitored outcome. The Erection Hardness Score (EHS) is a single-item, patient-reported outcome (PRO) for scoring erection hardness. AIMS: The aim of this article is to report the psychometric validation of the EHS. METHODS: The dataset (N = 307) was from a multinational sildenafil trial (efficacy in the treatment of erectile dysfunction [ED]) with a 2-week screening phase, a 6-week double-blind, placebo-controlled treatment phase, and a 6-week open-label extension. MAIN OUTCOME MEASURES: Test-retest reliability (intraclass correlation coefficient), quality and distribution of responses, known-groups validity (ability to differentiate between ED severity groups defined by the International Index of Erectile Function [IIEF] questionnaire), convergent validity (Pearson correlation coefficients with domain scores of the IIEF and the Quality of Erection Questionnaire [QEQ]), treatment responsiveness, and clinically important difference. RESULTS: The EHS demonstrated good test-retest reliability, acceptable quality and distribution of responses, known-groups validity against the IIEF (including clear differentiation between normal and impaired erectile function), moderate-to-strong convergent validity against the prespecified domains of the IIEF and QEQ, and high treatment responsiveness. CONCLUSION: The EHS has desirable measurement properties, including being highly responsive to treatment. This one-item PRO is robust and easy to use for evaluating erection hardness. Psychometric analysis supports the use of the EHS as a simple, reliable, and valid tool for the assessment of erection hardness in clinical trials research.
John P Mulhall; Irwin Goldstein; Andrew G Bushmakin; Joseph C Cappelleri; Kyle Hvidsten
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Validation Studies     Date:  2007-09-21
Journal Detail:
Title:  The journal of sexual medicine     Volume:  4     ISSN:  1743-6095     ISO Abbreviation:  -     Publication Date:  2007 Nov 
Date Detail:
Created Date:  2007-10-31     Completed Date:  2008-01-24     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101230693     Medline TA:  J Sex Med     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1626-34     Citation Subset:  IM    
Weill Medical College of Cornell University and Memorial Sloan Kettering Cancer Center, New York, NY 10021, USA.
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MeSH Terms
Erectile Dysfunction / diagnosis*
Middle Aged
Penile Erection*
Quality of Life
Reproducibility of Results
Research Design
Sensitivity and Specificity
Severity of Illness Index
Sexual Behavior
Sexual Dysfunctions, Psychological / diagnosis*

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