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, Caterina, Jiménez-Fonseca, Paula, Ferrando, Pere Joan, Jara, Carlos, Lorenzo-Seva, Urbano, Beato, Carmen, García-García, Teresa, Castelo Fernández, Beatriz, Ramchandani, Avinash, Muñoz, María Mar, Martínez de Castro, Eva, Ghanem, Ismael, Mangas, Montse, Carmona-Bayonas, Alberto
Tipo de recurso: artículo
Fecha de publicación:2018
País:España
Institución:Universidad Autónoma de Madrid
Repositorio:Biblos-e Archivo. Repositorio Institucional de la UAM
Idioma:inglés
OAI Identifier:oai:repositorio.uam.es:10486/681681
Acceso en línea:http://hdl.handle.net/10486/681681
https://dx.doi.org/10.1016/j.ijchp.2017.12.001
Access Level:acceso abierto
Palabra clave:Cancer
Instrumental study
Patient perspective
Patient-physician relationship
Shared decision-making
Medicina
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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