Validating the Xerostomia Inventory in a radiation-induced xerostomia population in German language.
quality of life
sialendoscopy
summated xerostomia inventory
xerostomia
xerostomia inventory
Journal
Oral diseases
ISSN: 1601-0825
Titre abrégé: Oral Dis
Pays: Denmark
ID NLM: 9508565
Informations de publication
Date de publication:
Oct 2019
Oct 2019
Historique:
received:
07
12
2018
revised:
28
06
2019
accepted:
30
06
2019
pubmed:
12
7
2019
medline:
3
1
2020
entrez:
12
7
2019
Statut:
ppublish
Résumé
Though xerostomia is a frequent oral symptom, there is no validated disease-specific questionnaire in German. The purpose of this study was to translate and validate versions of the Xerostomia Inventory and the Summated Xerostomia Inventory in a German-speaking population. Thirty-nine patients including 18 patients suffering from radiation-induced xerostomia enrolled in this study. Both questionnaires were translated into German language according to international accepted guidelines. For validation, we evaluated reliability, validity, and responsiveness using the COSMIN manual for cross-cultural adaptation. Cronbach's α was 0.92 for XI and 0.91 for SXI, showing both high internal consistency. Patients suffering from xerostomia showed significantly higher average scores demonstrating its discriminant validity. Confirmatory factor analysis showed excellent "goodness-of-fit" values for SXI and good to moderate values for XI, confirming the assumed factor structures. The Xerostomia Inventory and its summated version both showed excellent test-retest reliability in the non-xerostomia group (ICC = 0.85 and 0.84). The XI and SXI in their cross-cultural adapted versions are the first validated self-report assessments for xerostomia in German language. They are characterized by practical design and can be easily interpreted by the treating physician.
Types de publication
Journal Article
Langues
eng
Pagination
1744-1750Informations de copyright
© 2019 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd. All rights reserved.
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