%0 Journal Article
%@ 1438-8871
%I JMIR Publications
%V 20
%N 6
%P e10507
%T Interactive Visual Displays for Interpreting the Results of Clinical Trials: Formative Evaluation With Case Vignettes
%A Bian,Jiantao
%A Weir,Charlene
%A Unni,Prasad
%A Borbolla,Damian
%A Reese,Thomas
%A Wan,Yik-Ki Jacob
%A Del Fiol,Guilherme
%+ Department of Biomedical Informatics, University of Utah, 421 Wakara Way, Suite 140, Salt Lake City, UT, 84108, United States, 1 801 213 4129, guilherme.delfiol@utah.edu
%K clinical decision-making
%K clinician information needs
%K information display
%K information foraging theory
%K information seeking behavior
%D 2018
%7 25.06.2018
%9 Original Paper
%J J Med Internet Res
%G English
%X Background: At the point of care, evidence from randomized controlled trials (RCTs) is underutilized in helping clinicians meet their information needs. Objective: To design interactive visual displays to help clinicians interpret and compare the results of relevant RCTs for the management of a specific patient, and to conduct a formative evaluation with physicians comparing interactive visual versus narrative displays. Methods: We followed a user-centered and iterative design process succeeded by development of information display prototypes as a Web-based application. We then used a within-subjects design with 20 participants (8 attendings and 12 residents) to evaluate the usability and problem-solving impact of the information displays. We compared subjects’ perceptions of the interactive visual displays versus narrative abstracts. Results: The resulting interactive visual displays present RCT results side-by-side according to the Population, Intervention, Comparison, and Outcome (PICO) framework. Study participants completed 19 usability tasks in 3 to 11 seconds with a success rate of 78% to 100%. Participants favored the interactive visual displays over narrative abstracts according to perceived efficiency, effectiveness, effort, user experience and preference (all P values <.001). Conclusions: When interpreting and applying RCT findings to case vignettes, physicians preferred interactive graphical and PICO-framework-based information displays that enable direct comparison of the results from multiple RCTs compared to the traditional narrative and study-centered format. Future studies should investigate the use of interactive visual displays to support clinical decision making in care settings and their effect on clinician and patient outcomes. 
%M 29941416
%R 10.2196/10507
%U http://www.jmir.org/2018/6/e10507/
%U https://doi.org/10.2196/10507
%U http://www.ncbi.nlm.nih.gov/pubmed/29941416