Fig. 7

Usability and Clarity of OA Risk Calculator – This figure shows participant responses to six questions about the usability and clarity of OA Risk C. Each of these questions offered responses on a 5 point Likert scale with the following agreement options: “Strongly Disagree,” “Disagree,” “Neutral,” “Agree,” and “Strongly Agree.” The first statement that users rated (“Easy to Use”) was: “The risk calculator was easy to use.” The second statement (“Overall Risk Clear”) was: “My risk of developing knee osteoarthritis was clear and easy to understand.” The third statement (“Graphs Clear”) was: “The graphs showing my risk were clear and easy to understand.” The fourth statement (“Average Risk Clear” was: “My risk of developing knee osteoarthritis compared to the average American was clear and easy to understand.” The fifth statement (“Text Readable”) was: “The text in the risk calculator was easy to read.”