Psychometric properties of the Shared Decision-Making Questionnaire (SDM-Q-9) in oncology practice

Background/Objective: This study sought to assess the psychometric properties of the 9-item Shared Decision-Making Questionnaire (SDM-Q-9) in patients with resected, non-metastatic cancer and eligible for adjuvant chemotherapy. Method: A total of 568 patients were recruited from a multi-institutiona...

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Detalles Bibliográficos
Autores: Calderón Garrido, Caterina, Jiménez Fonseca, Paula, Ferrando Piera, Pere Joan, Jara, Carlos, Lorenzo Seva, Urbano, Beato, Carmen, García-García, Teresa, Castelo, Beatriz, Ramchandani, Avinash, Muñoz, Maria del Mar, Martínez de Castro, Eva, Ghanem, Ismael, Mangas-Izquierdo, Montserrat, Carmona Bayonas, Alberto
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2018
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/122565
Acceso en línea:https://hdl.handle.net/2445/122565
Access Level:acceso abierto
Palabra clave:Presa de decisions
Qüestionaris
Psicometria
Decision making
Questionnaires
Psychometrics
Descripción
Sumario:Background/Objective: This study sought to assess the psychometric properties of the 9-item Shared Decision-Making Questionnaire (SDM-Q-9) in patients with resected, non-metastatic cancer and eligible for adjuvant chemotherapy. Method: A total of 568 patients were recruited from a multi-institutional, prospective, transversal study. Patients answered the SDM-Q-9 after visiting their medical oncologist who, in turn, completed the SDM-Q---Physician version. Reliability, factorial structures [exploratory factor analysis (EFA), confirmatory factor analysis (CFA)], and convergent validity of the SDM-Q-9 scores were explored. Results: SDM-Q-9 showed a clear factorial structure, compatible with a strong and replicable general factor and a secondary group factor, in patients with resected, non-metastatic cancer. Total sum scores derived from the general factor showed good reliability in terms of omega coefficient: .90. The association between patient and physician perception of SDM was weak and failed to reach statistical significance. Males and patients over 60 years of age displayed the greatest satisfaction with SDM. Conclusions: SDM-Q-9 can aid in evaluating SDM from the cancer patients' perspective. SDM-Q-9 is helpful in studies examining patient perspectives of SDM and as an indicator of the degree of quality and satisfaction with health care and patient-physician relationship.

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