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dc.contributor.authorAxcrona, Karol
dc.contributor.authorNilsson, Rasmus
dc.contributor.authorBrennhovd, Bjørn
dc.contributor.authorSørebø, Øystein
dc.contributor.authorFosså, Sophie Dorothea
dc.contributor.authorDahl, Alv A.
dc.date.accessioned2018-02-14T10:26:51Z
dc.date.available2018-02-14T10:26:51Z
dc.date.created2017-12-04T12:31:46Z
dc.date.issued2017
dc.identifier.citationBMC Urology. (2017) 17:111nb_NO
dc.identifier.issn1471-2490
dc.identifier.urihttp://hdl.handle.net/11250/2484575
dc.description.abstractBackground Recently, the Expanded Prostate Cancer Index Composite 26-item version (EPIC-26) was recommended for the assessment of adverse effects after the treatment of prostate cancer without clear reasons. This decision encouraged us to review the questionnaire development from the UCLA Prostate Cancer Index (UCLA-PCI) to the EPIC-16 CP with a focus on psychometric properties. We also reviewed PubMed for papers concerning such properties of the EPIC-26 since 2012 (latest review in 2011). Finally, we examined the psychometric properties of the EPIC-26 in a sample of Norwegian males treated with robot-assisted laparoscopic prostatectomy (RALP). Methods This study used three methods: (1) Comparison of the content of the UCLA-PCI, EPIC-50, EPIC-26, and EPIC-16 CP; (2) Review of EPIC-26 and EPIC-16 CP papers in PubMed from 2012 to 2016, identifying papers reporting on the psychometric properties of these questionnaires; and (3) Psychometric examination of the EPIC-26 rating in 651 Norwegian men treated with RALP at a mean of 3.2 years post-surgery. Results The questionnaire development showed a significant increase in bother versus function items, and the EPIC-26 contains eight function and 18 bother items. Twelve papers concerning the EPIC-26 available on PubMed since 2012 support the psychometric properties of the EPIC-26. The Norwegian EPIC-26 findings supported the psychometric properties of the EPIC-26, but suggested six subdomains both by exploratory and confirmatory factor analyses. Conclusions In general our examinations supported the adequate psychometric properties of the EPIC-26, although the factor structure, construct and predictive validity of the instrument should be examined further.nb_NO
dc.language.isoengnb_NO
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no*
dc.titlePsychometric properties of the expanded prostate cancer index composite - 26 instrument in a cohort of radical prostatectomy patients: theoretical and practical examinationsnb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.description.versionpublishedVersionnb_NO
dc.rights.holderThe Author(s). 2017nb_NO
dc.source.pagenumber11nb_NO
dc.source.journalBMC Urologynb_NO
dc.identifier.doi10.1186/s12894-017-0302-7
dc.identifier.cristin1522460
cristin.unitcode222,57,3,0
cristin.unitnameInstitutt for økonomi, markedsføring og jus
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1


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