Cost Conversations About Anticoagulation Between Patients With Atrial Fibrillation and Their Clinicians
Authors: Celia C. Kamath, Rachel Giblon, Marlene Kunneman, Alexander I. Lee, Megan E. Branda, Ian G. Hargraves, Angela L. Sivly, Fernanda Bellolio, Elizabeth A. Jackson, Bruce Burnett, Haeshik Gorr, Victor D. Torres Roldan, Gabriella Spencer-Bonilla, Nilay D. Shah, Peter A. Noseworthy, Victor M. Montori, Juan P. Brito, Alexander Haffke, Amy Stier, Anjali Thota, Annie LeBlanc, Benjamin Simpson, Claudia Zeballos-Palacios, Derek Vanmeter, Emma Behnken, Erik Hess, Henry Ting, James Hamilton, Joel Anderson, Jonathan Inselman, Jule Muegge, Kirsten Fleming, Marc Olive, Mark Linzer, Miamoua Vang, Michael Ferrara, Mike Wambua, Paige Organick, Renee Cabalka, Sara Poplau, Takeki Suzuki, Carol Abullarade, Lisa Harvey, Shelly Keune, Timothy Smith, Shannon Stephens, Bryan Barksdale, Theresa Hickey, Roma Peters, Memrie Price, Connie Watson, Douglas Wolfe, Gordon Guyatt, Brian Haynes, George Tomlinson, Paul Daniels, Bernard Gersh, Thomas Jaeger, Robert McBane
Journal: JAMA Network Open (2021)

<h3>Importance</h3> How patients with atrial fibrillation (AF) and their clinicians consider cost in forming care plans remains unknown. <h3>Objective</h3> To identify factors that inform conversations regarding costs of anticoagulants for treatment of AF between patients and clinicians and outcomes associated with these conversations. <h3>Design, Setting, and Participants</h3> This cohort study of recorded encounters and participant surveys at 5 US medical centers (including academic, community, and safety-net centers) from the SDM4AFib randomized trial compared standard AF care with and without use of a shared decision-making (SDM) tool. Included patients were considering anticoagulation treatment and were recruited by their clinicians between January 30, 2017, and June 27, 2019. Data were analyzed between August and November 2019. <h3>Main Outcomes and Measures</h3> The incidence of and factors associated with cost conversations, and the association of cost conversations with patients' consideration of treatment cost burden and their choice of anticoagulation. <h3>Results</h3> A total of 830 encounters (out of 922 enrolled participants) were recorded. Patients' mean (SD) age was 71.0 (10.4) years; 511 patients (61.6%) were men, 704 (86.0%) were White, 303 (40.9%) earned between $40 000 and $99 999 in annual income, and 657 (79.2%) were receiving anticoagulants. Clinicians' mean (SD) age was 44.8 (13.2) years; 75 clinicians (53.2%) were men, and 111 (76%) practiced as physicians, with approximately half (69 [48.9%]) specializing in either internal medicine or cardiology. Cost conversations occurred in 639 encounters (77.0%) and were more likely in the SDM arm (378 [90%] vs 261 [64%]; OR, 9.69; 95% CI, 5.77-16.29). In multivariable analysis, cost conversations were more likely to occur with female clinicians (66 [47%]; OR, 2.85; 95% CI, 1.21-6.71); consultants vs in-training clinicians (113 [75%]; OR, 4.0; 95% CI, 1.4-11.1); clinicians practicing family medicine (24 [16%]; OR, 12.12; 95% CI, 2.75-53.38]), internal medicine (35 [23%]; OR, 3.82; 95% CI, 1.25-11.70), or other clinicians (21 [14%]; OR, 4.90; 95% CI, 1.32-18.16) when compared with cardiologists; and for patients with an annual household income between $40 000 and $99 999 (249 [82.2%]; OR, 1.86; 95% CI, 1.05-3.29) compared with income below $40 000 or above $99 999. More patients who had cost conversations reported cost as a factor in their decision (244 [89.1%] vs 327 [69.0%]; OR 3.66; 95% CI, 2.43-5.50), but cost conversations were not associated with the choice of anticoagulation agent. <h3>Conclusions and Relevance</h3> Cost conversations were common, particularly for middle-income patients and with female and consultant-level primary care clinicians, as well as in encounters using an SDM tool; they were associated with patients' consideration of treatment cost burden but not final treatment choice. With increasing costs of care passed on to patients, these findings can inform efforts to promote cost conversations in practice. <h3>Trial Registration</h3> ClinicalTrials.gov Identifier:NCT02905032