Introducing the HOPE (Hypospadias Objective Penile Evaluation)-score: A validation study of an objective scoring system for evaluating cosmetic appearance in hypospadias patients
Publication year
2013Source
Journal of Pediatric Urology, 9, 6, (2013), pp. 1006-16ISSN
Publication type
Article / Letter to editor

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Organization
Urology
Journal title
Journal of Pediatric Urology
Volume
vol. 9
Issue
iss. 6
Page start
p. 1006
Page end
p. 16
Subject
NCMLS 3: Tissue engineering and pathologyAbstract
OBJECTIVE: To determine the reliability and internal validity of the Hypospadias Objective Penile Evaluation (HOPE)-score, a newly developed scoring system assessing the cosmetic outcome in hypospadias. PATIENTS AND METHODS: The HOPE scoring system incorporates all surgically-correctable items: position of meatus, shape of meatus, shape of glans, shape of penile skin and penile axis. Objectivity was established with standardized photographs, anonymously coded patients, independent assessment by a panel, standards for a "normal" penile appearance, reference pictures and assessment of the degree of abnormality. A panel of 13 pediatric urologists completed 2 questionnaires, each consisting of 45 series of photographs, at an interval of at least 1 week. The inter-observer reliability, intra-observer reliability and internal validity were analyzed. RESULTS: The correlation coefficients for the HOPE-score were as follows: intra-observer reliability 0.817, inter-observer reliability 0.790, "non-parametric" internal validity 0.849 and "parametric" internal validity 0.842. These values reflect good reproducibility, sufficient agreement among observers and a valid measurement of differences and similarities in cosmetic appearance. CONCLUSIONS: The HOPE-score is the first scoring system that fulfills the criteria of a valid measurement tool: objectivity, reliability and validity. These favorable properties support its use as an objective outcome measure of the cosmetic result after hypospadias surgery.
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- Academic publications [227613]
- Faculty of Medical Sciences [86193]
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