• Christopher C Lamb, Yunmei Wang, and Kalle Lyytinen.
• BioSolutions Services LLC, Cambridge, Massachusetts.
• J Eval Clin Pract. 2019 Dec 1; 25 (6): 110211101102-1110.

AbstractOverall health care spending in the United States is equivalent to more than 15% of GDP, yet outcomes rank below the top 25 in most quality categories when compared with other Organization for Economic Cooperation and Development (OECD) countries. The majority of spending is consumed by small patient populations with chronic diseases. Experts believe increased patient-physician shared decision making (SDM) should result in better overall longitudinal care but understanding the physician's role in facilitating SDM is limited. Structural equation modelling was applied to results of a 2016 questionnaire-based survey of 330 US physicians who treat approximately 55% of primary immune deficiency requiring immune globulin therapy; it tested the relationship between slow/rational vs fast/intuitive decision-making styles and SDM as mediated by patient-centric care and moderated by physician's trust in the patient. The results showed a statistically significant relationship between slow/rational decision making and SDM. The results also suggest differences related to age, gender, education, and race but no differences related to trust.© 2019 The Authors Journal of Evaluation in Clinical Practice Published by John Wiley & Sons Ltd.

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