Nejati, babak and Lin, Chien-Chin and Imani, Vida and Browall, Maria and Lin, Chung-Ying and Broström, Anders and Pakpour HA, Amir (2019) Validating patient and physician versions of the shared decision making questionnaire in oncology setting. HEALTH PROMOTION PERSPECTIVES, 9 (2). pp. 105-114.
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Abstract
Background: This study investigated the psychometric properties of the 9-Item Shared DecisionMaking 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.
| Item Type: | Article |
|---|---|
| Subjects: | R Medicine > RA Public aspects of medicine |
| Divisions: | University Portal > research center > sdh |
| Depositing User: | pr SDH research |
| Date Deposited: | 21 Aug 2019 04:39 |
| Last Modified: | 21 Aug 2019 04:39 |
| URI: | http://eprints.qums.ac.ir/id/eprint/8922 |
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