Bayesian decision making in confirmatory early-stage breast cancer trial

2021 ◽  
Vol 102 ◽  
pp. 106280
Author(s):  
Ennan Gu ◽  
Xuan Zhou ◽  
Jing Zhao
Author(s):  
Meghan S. Karuturi ◽  
Sharon H. Giordano ◽  
Diana S. Hoover ◽  
Robert J. Volk ◽  
Ashley J. Housten

2018 ◽  
Vol 44 (6) ◽  
pp. 901
Author(s):  
Lorna Cook ◽  
Peter Bennett ◽  
Manish Kothari ◽  
Mikaela Nordblad ◽  
Elizabeth Clayton ◽  
...  

2013 ◽  
Vol 31 (26_suppl) ◽  
pp. 108-108
Author(s):  
Andrea Marie Covelli ◽  
Nancy N. Baxter ◽  
Margaret Fitch ◽  
Frances Catriona Wright

108 Background: Rates of both unilateral (UM) and contralateral prophylactic mastectomy (CPM) for early stage breast cancer (ESBC) have been increasing since 2003. More extensive surgery is not a benign procedure without the risk of complications. Studies suggest that the increase is due to women choosing UM and CPM; we do not know what factors are influencing the choice for more extensive surgery. Methods: We conducted a qualitative study using grounded theory to identify factors for the choice of mastectomy. Purposive sampling was used to identify women across the Toronto Area (Ontario, Canada), who were suitable candidates for breast conserving surgery (BCS) but underwent UM or CPM. Data were collected through semi-structured interviews. Constant comparative analysis identified key concepts and themes. Results: Data saturation was achieved after 29 in-person interviews. 12 interviewees were treated at academic cancer centers, 6 at an academic non-cancer center and 11 at community centers. 15 women underwent UM; 14 underwent UM+CPM. Median age was 55. ‘Taking control of cancer’ was the dominant theme. Fear of breast cancerwas expressed at diagnosisand remains throughout decision making. Fear translates into the overestimated risk of local recurrenceand contralateral cancer. Despite discussion of the equivalence of BCS and UM, patients chose UM due to fear of recurrence and misperceived survival advantage. Similarly, patients chose CPM to eliminate the risk of contralateral cancer and misperceived survival advantage. Women were actively trying to Control Outcomes, as more surgery was seen as greater control. Conclusions: Women seeking UM and CPM for treatment of their early stage breast cancer manage their fear of cancer by undergoing more extensive surgery which in turn drives mastectomy rates. It is important to understand this process so that we may improve our ability to discuss issues of importance to women and facilitate informed decision-making.


2019 ◽  
Vol 37 (27_suppl) ◽  
pp. 227-227
Author(s):  
Valerie Lawhon ◽  
Rebecca England ◽  
Audrey S. Wallace ◽  
Courtney Williams ◽  
Stacey A. Ingram ◽  
...  

227 Background: Shared decision-making (SDM) occurs when both patient and provider are involved in the treatment decision-making process. SDM allows patients to understand the pros and cons of different treatments while also helping them select the one that aligns with their care goals when multiple options are available. This qualitative study sought to understand different factors that influence early-stage breast cancer (EBC) patients’ approach in selecting treatment. Methods: This cross-sectional study included women with stage I-III EBC receiving treatment at the University of Alabama at Birmingham from 2017-2018. To understand SDM preferences, patients completed the Control Preferences Scale and a short demographic questionnaire. To understand patient’s values when choosing treatment, semi-structured interviews were conducted to capture patient preferences for making treatment decisions, including surgery, radiation, or systemic treatments. Interviews were audio-recorded, transcribed, and analyzed using NVivo. Two coders analyzed transcripts using a constant comparative method to identify major themes related to decision-making preferences. Results: Amongst the 33 women, the majority of patients (52%) desired shared responsibility in treatment decisions. 52% of patients were age 75+ and 48% of patients were age 65-74, with an average age of 74 (4.2 SD). 21% of patients were African American and 79% were Caucasian. Interviews revealed 19 recurrent treatment decision-making themes, including effectiveness, disease prognosis, physician and others’ opinions, side effects, logistics, personal responsibilites, ability to accomplish daily activities or larger goals, and spirituality. EBC patient preferences varied widely in regards to treatment decision-making. Conclusions: The variety of themes identified in the analysis indicate that there is a large amount of variability to what preferences are most crucial to patients. Providers should consider individual patient needs and desires rather than using a “one size fits all” approach when making treatment decisions. Findings from this study could aid in future SDM implementations.


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