Validating patient and physician versions of the shared decision making questionnaire in oncology setting

Background: This study investigated the psychometric properties of the 9-Item Shared Decision-Making Questionnaire (SDM-Q-9) and the 9-Item Shared Decision-Making Questionnaire–Physician version (SDM-Q-Doc) using comprehensive and thorough psychometric methods in an oncology setting. Methods: Cancer...

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Autores principales: Nejati, Babak, Lin, Chien-Chin, Imani, Vida, Browall, Maria, Lin, Chung-Ying, Broström, Anders, Pakpour, Amir H
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Tabriz University of Medical Sciences 2019
Materias:
Original Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6588807/
https://www.ncbi.nlm.nih.gov/pubmed/31249797
http://dx.doi.org/10.15171/hpp.2019.15
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author Nejati, Babak
Lin, Chien-Chin
Imani, Vida
Browall, Maria
Lin, Chung-Ying
Broström, Anders
Pakpour, Amir H
author_facet Nejati, Babak
Lin, Chien-Chin
Imani, Vida
Browall, Maria
Lin, Chung-Ying
Broström, Anders
Pakpour, Amir H
author_sort Nejati, Babak
collection PubMed
description Background: This study investigated the psychometric properties of the 9-Item Shared Decision-Making Questionnaire (SDM-Q-9) and the 9-Item Shared Decision-Making Questionnaire–Physician version (SDM-Q-Doc) using comprehensive and thorough psychometric methods in an oncology setting. Methods: Cancer survivors (n=1783; 928 [52.05%] males) and physicians (n=154; 121[78.58%] males) participated in this study. Each cancer survivor completed the SDM-Q-9. Physicians completed the SDM-Q-Doc for each of their cancer patient. Confirmatory factor analysis (CFA) and Rasch model were used to test the psychometric properties of SDM-Q-9 and SDM-Q-Doc. Results: SDM-Q-9 and SDM-Q-Doc demonstrated unidimensional structure in CFA and Rasch model. In addition, the measurement invariance was supported for both SDM-Q-9 and SDM-QDoc across sex using the multigroup CFA. Rash analysis indicates no differential item functioning(DIF)across sex for all the SDM-Q-9 and SDM-Q-Doc items. SDM-Q-9 and SDM-Q-Doc were moderately correlated (r=0.41; P<0.001). Conclusion: SDM-Q-9 and SDM-Q-Doc are valid instruments to assess shared decision making in the oncology setting.
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spelling pubmed-65888072019-06-27 Validating patient and physician versions of the shared decision making questionnaire in oncology setting Nejati, Babak Lin, Chien-Chin Imani, Vida Browall, Maria Lin, Chung-Ying Broström, Anders Pakpour, Amir H Health Promot Perspect Original Article Background: This study investigated the psychometric properties of the 9-Item Shared Decision-Making Questionnaire (SDM-Q-9) and the 9-Item Shared Decision-Making Questionnaire–Physician version (SDM-Q-Doc) using comprehensive and thorough psychometric methods in an oncology setting. Methods: Cancer survivors (n=1783; 928 [52.05%] males) and physicians (n=154; 121[78.58%] males) participated in this study. Each cancer survivor completed the SDM-Q-9. Physicians completed the SDM-Q-Doc for each of their cancer patient. Confirmatory factor analysis (CFA) and Rasch model were used to test the psychometric properties of SDM-Q-9 and SDM-Q-Doc. Results: SDM-Q-9 and SDM-Q-Doc demonstrated unidimensional structure in CFA and Rasch model. In addition, the measurement invariance was supported for both SDM-Q-9 and SDM-QDoc across sex using the multigroup CFA. Rash analysis indicates no differential item functioning(DIF)across sex for all the SDM-Q-9 and SDM-Q-Doc items. SDM-Q-9 and SDM-Q-Doc were moderately correlated (r=0.41; P<0.001). Conclusion: SDM-Q-9 and SDM-Q-Doc are valid instruments to assess shared decision making in the oncology setting. Tabriz University of Medical Sciences 2019-05-25 /pmc/articles/PMC6588807/ /pubmed/31249797 http://dx.doi.org/10.15171/hpp.2019.15 Text en © 2019 The Author(s). 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 work is properly cited.
spellingShingle Original Article
Nejati, Babak
Lin, Chien-Chin
Imani, Vida
Browall, Maria
Lin, Chung-Ying
Broström, Anders
Pakpour, Amir H
Validating patient and physician versions of the shared decision making questionnaire in oncology setting
title Validating patient and physician versions of the shared decision making questionnaire in oncology setting
title_full Validating patient and physician versions of the shared decision making questionnaire in oncology setting
title_fullStr Validating patient and physician versions of the shared decision making questionnaire in oncology setting
title_full_unstemmed Validating patient and physician versions of the shared decision making questionnaire in oncology setting
title_short Validating patient and physician versions of the shared decision making questionnaire in oncology setting
title_sort validating patient and physician versions of the shared decision making questionnaire in oncology setting
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6588807/
https://www.ncbi.nlm.nih.gov/pubmed/31249797
http://dx.doi.org/10.15171/hpp.2019.15
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