• Donald R Sullivan, Sara E Golden, Linda Ganzini, Renda Soylemez Wiener, Karen B Eden, and Christopher G Slatore.
• 1 Health Services Research and Development, and.
• Ann Am Thorac Soc. 2017 Nov 1; 14 (11): 1690-1696.

RationalePatient participation in medical decision-making is widely advocated, but outcomes are inconsistent.ObjectivesWe examined the associations between medical decision-making roles, and patients' perceptions of their care and knowledge while undergoing pulmonary nodule surveillance.MethodsThe study setting was an academically affiliated Veterans Affairs hospital network in which 121 participants had 319 decision-making encounters. The Control Preferences Scale was used to assess patients' decision-making roles. Associations between decision-making, including role concordance (i.e., agreement between patients' preferred and actual roles), shared decision-making (SDM), and perceptions of care and knowledge, were assessed using logistic regression and generalized estimating equations.ResultsParticipants had a preferred role in 98% of encounters, and most desired an active role (shared or patient controlled). For some encounters (36%), patients did not report their actual decision-making role, because they did not know what their role was. Role concordance and SDM occurred in 56% and 26% of encounters, respectively. Role concordance was associated with greater satisfaction with medical care (adjusted odds ratio [Adj-OR], 5.39; 95% confidence interval [CI], 1.68-17.26), higher quality of patient-reported care (Adj-OR, 2.86; 95% CI, 1.31-6.27), and more disagreement that care could be better (Adj-OR, 2.16; 95% CI, 1.12-4.16). Role concordance was not associated with improved pulmonary nodule knowledge with respect to lung cancer risk (Adj-OR, 1.12; 95% CI, 0.63-2.00) or nodule information received (Adj-OR, 1.13; 95% CI, 0.31-4.13). SDM was not associated with perceptions of care or knowledge.ConclusionsAmong patients undergoing longitudinal nodule surveillance, a majority had a preference for having active roles in decision-making. Interestingly, during some encounters, patients did not know what their role was or that a decision was being made. Role concordance was associated with greater patient-reported satisfaction and quality of medical care, but not with improved knowledge. Patient participation in decision-making may influence perceptions of care; however, clinicians may need to focus on other communication strategies or domains to improve patient knowledge and health outcomes.

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