A Veteran-Centric Web-Based Decision Aid for Lung Cancer Screening: Usability Analysis (Preprint)

• DOI: 10.2196/preprints.29039
• Publication Date: 2021-04-02T14:29:36Z
• Authors: Marilyn M Schapira; Sumedha Chhatre; Jason M Prigge; Jessica Meline; Dana Kaminstein; Keri L Rodriguez; Liana Fraenkel; Jeffrey D Kravetz; Jeff Whittle; Lori A Bastian; Anil Vachani; Scott Akers; Susan Schrand; Jennifer V Ibarra; Onur Asan
• Keywords: System usability scale; Veterans Affairs

<sec> <title>BACKGROUND</title> Web-based tools developed to facilitate a shared decision-making (SDM) process may the implementation of lung cancer screening (LCS), an evidence-based intervention improve outcomes. Veterans have specific risk factors and experiences that affect benefits potential harms LCS thus value veteran-centric decision tool (LCSDecTool). </sec> <title>OBJECTIVE</title> This study aims conduct usability testing LCSDecTool designed for veterans receiving care at Veteran Affairs medical center. <title>METHODS</title> Usability was conducted in prototype version (phase 1) high-fidelity 2). A total 18 8 clinicians participated phase 1, 43 2. Quantitative outcomes from users included System Scale (SUS) End User Computing Satisfaction (EUCS) 1 SUS, EUCS, Patient Engagement scale Qualitative data were obtained observations user sessions brief interviews. The results informed modifications version. Phase 2 took place context pilot hybrid type effectiveness-implementation trial. <title>RESULTS</title> In testing, mean SUS score (potential range: 0-100) 81.90 (SD 9.80), corresponding excellent level usability. EUCS 1-5) 4.30 0.71). 65.76 15.23), good 3.91 0.95); range [low] 5 [high]) 4.62 0.67). median time completion minutes 13 (IQR 10-16). thematic analysis statements documented during identified following themes: low baseline awareness knowledge about increased after use LCSDecTool; sought more detailed descriptions process; generally easy use, but navigation challenges remained; some noted difficulty understanding terms used evoked veterans’ struggles with prior attempts smoking cessation. <title>CONCLUSIONS</title> Our findings support development this eHealth technology primary clinical setting as way engage veterans, inform them new control test, prepare participate SDM discussion their provider.