Impact of a decision aid on reducing uncertainty: pilot study of women in their 40s and screening mammography

BMC Medical Informatics and Decision Making

Research Article

Stephen Bedrick¹  Lisa Nelson²  Lindsey Watson³  Karen B. Eden⁴  Paula Scariati⁵ 

[1] Center for Spoken Language and Understanding, Oregon Health & Science University, Portland, OR, USA;ConvergeHEALTH by Deloitte, Newton, MA, USA;Department of Medical Informatics and Clinical Epidemiology, Oregon Health & Science University, Portland, OR, USA;Department of Medical Informatics and Clinical Epidemiology, Oregon Health & Science University, Portland, OR, USA;Pacific Northwest Evidence-based Practice Center, Oregon Health & Science University, Portland, OR, USA;Marin General Hospital, Greenbrae, CA, USA;

关键词: Decision support techniques;    Mammography;    Screening;    Cancer prevention;    Patient preferences;    Decision aid;   

DOI  :  10.1186/s12911-015-0210-2

 received in 2015-01-22, accepted in 2015-10-14,  发布年份 2015

来源: Springer

【 摘 要 】

BackgroundIn 2009 the United States Preventive Services Task Force updated its breast cancer screening guidelines to recommend that average-risk women obtain a screening mammogram every two years starting at age 50 instead of annually starting at age 40. Inconsistencies in data regarding the benefit versus risk of routine screening for women less than 50-years-of-age led to a second recommendation – that women in their forties engage in a shared decision making process with their provider to make an individualized choice about screening mammography that was right for them. In response, a web-based interactive mammography screening decision aid was developed and evaluated.MethodsThe decision aid was developed using an agile, iterative process. It was further honed based on feedback from clinical and technical subject matter experts. A convenience sample of 51 age- and risk-appropriate women was recruited to pilot the aid. Pre-post decisional conflict and screening choice was assessed.ResultsWomen reported a significant reduction in overall decisional conflict after using the decision aid (Z = -5.3, p < 0.001). These participants also reported statistically significant reductions in each of the decisional conflict subscales: feeling uncertain (Z = -4.7, p < 0.001), feeling uninformed (Z = -5.2, p < 0.001), feeling unclear about values (Z = -5.0, p < 0.001), and feeling unsupported (Z = -4.0, p < 0.001). However, a woman’s intention to obtain a screening mammogram in the next 1-2 years was not significantly changed (Wilcoxon signed-rank Z = -1.508, p = 0.132).ConclusionThis mammography screening decision aid brings value to patient care not by impacting what a woman chooses but by lending clarity to why or how she chooses it.

【 授权许可】

CC BY   
© Scariati et al. 2015