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Further validation of the Gothenburg Trismus Questionnaire (GTQ)

This study aimed to update and, if necessary, revise the Gothenburg Trismus Questionnaire (GTQ), the only existing trismus-specific questionnaire, and retest its psychometric properties. Semi-structured interviews were performed with 10 trismus patients of which 5 had head and neck cancer (HNC) and...

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Autores principales: Johansson, Mia, Karlsson, Therese, Finizia, Caterina
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7746186/
https://www.ncbi.nlm.nih.gov/pubmed/33332402
http://dx.doi.org/10.1371/journal.pone.0243805
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author Johansson, Mia
Karlsson, Therese
Finizia, Caterina
author_facet Johansson, Mia
Karlsson, Therese
Finizia, Caterina
author_sort Johansson, Mia
collection PubMed
description This study aimed to update and, if necessary, revise the Gothenburg Trismus Questionnaire (GTQ), the only existing trismus-specific questionnaire, and retest its psychometric properties. Semi-structured interviews were performed with 10 trismus patients of which 5 had head and neck cancer (HNC) and 5 suffered from benign temporomandibular disorders. Trismus was defined as a maximal incisal opening of ≤ 35mm. An expert panel discussed and revised the GTQ based on interview information, expertise knowledge and the original questionnaire. The revised questionnaire was then tested in a study sample consisting of benign jaw-related conditions (n = 26), patients treated for HNC (n = 90) and an age- and gender-matched control group with no trismus (n = 116). The revised version of the GTQ (GTQ 2) was well accepted by patients. The original three domains continued to show high internal consistency (Cronbach’s alpha 0.74–0.94) and construct validity. Two dually posed single items were split into four questions and the wording was altered in another three items. Moreover, a new domain (Facial pain) was identified, which had excellent internal consistency (α = 0.96) and good construct validity. The revision of the original Gothenburg Trismus Questionnaire (GTQ 1) with inclusion of patient-input, resulted in splitting of ambiguous items, identifying a fourth domain named Facial pain and the recall time shortened for some items. Additionally, the remaining domains and items were re-confirmed as strong in the psychometric analysis. Henceforth, the new version, GTQ 2 should be used.
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spelling pubmed-77461862021-01-05 Further validation of the Gothenburg Trismus Questionnaire (GTQ) Johansson, Mia Karlsson, Therese Finizia, Caterina PLoS One Research Article This study aimed to update and, if necessary, revise the Gothenburg Trismus Questionnaire (GTQ), the only existing trismus-specific questionnaire, and retest its psychometric properties. Semi-structured interviews were performed with 10 trismus patients of which 5 had head and neck cancer (HNC) and 5 suffered from benign temporomandibular disorders. Trismus was defined as a maximal incisal opening of ≤ 35mm. An expert panel discussed and revised the GTQ based on interview information, expertise knowledge and the original questionnaire. The revised questionnaire was then tested in a study sample consisting of benign jaw-related conditions (n = 26), patients treated for HNC (n = 90) and an age- and gender-matched control group with no trismus (n = 116). The revised version of the GTQ (GTQ 2) was well accepted by patients. The original three domains continued to show high internal consistency (Cronbach’s alpha 0.74–0.94) and construct validity. Two dually posed single items were split into four questions and the wording was altered in another three items. Moreover, a new domain (Facial pain) was identified, which had excellent internal consistency (α = 0.96) and good construct validity. The revision of the original Gothenburg Trismus Questionnaire (GTQ 1) with inclusion of patient-input, resulted in splitting of ambiguous items, identifying a fourth domain named Facial pain and the recall time shortened for some items. Additionally, the remaining domains and items were re-confirmed as strong in the psychometric analysis. Henceforth, the new version, GTQ 2 should be used. Public Library of Science 2020-12-17 /pmc/articles/PMC7746186/ /pubmed/33332402 http://dx.doi.org/10.1371/journal.pone.0243805 Text en © 2020 Johansson et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Johansson, Mia
Karlsson, Therese
Finizia, Caterina
Further validation of the Gothenburg Trismus Questionnaire (GTQ)
title Further validation of the Gothenburg Trismus Questionnaire (GTQ)
title_full Further validation of the Gothenburg Trismus Questionnaire (GTQ)
title_fullStr Further validation of the Gothenburg Trismus Questionnaire (GTQ)
title_full_unstemmed Further validation of the Gothenburg Trismus Questionnaire (GTQ)
title_short Further validation of the Gothenburg Trismus Questionnaire (GTQ)
title_sort further validation of the gothenburg trismus questionnaire (gtq)
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7746186/
https://www.ncbi.nlm.nih.gov/pubmed/33332402
http://dx.doi.org/10.1371/journal.pone.0243805
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