Table 3 Features of the ePRO diary and/or at-home completion phase that participants liked

Simple and easy to use (n = 15)

“Um the questions were very um,—they were very simple—very easy, very understandable.” (0106-CC-F-53)

Small and portable (n = 7)

“Well, uh, first of all, I could take it with me. It was a short—a small little—like a little cell phone.” (0103-CC-F-70)

Similar questions (n = 5)

“Um, I liked how it like—how it would do the same exact questions, um, each day and like so there was no like different order, and I would know like what that one actually meant after like a period of time.” (0210-CC-F-14)

Short (n = 4)

“And the thing I liked about it, um, when you do it—it’s not really that long. It’s just a little short, like five or six pages—and that’s it.” (0101-CC-F-8)

Responsibility (n = 3)

“Um, what I liked about the device is that, um, I had my, uh—I had a big responsibility and I had to take care of it and—and, uh—and it just gave me a nervous feeling when I didn’t answer it.” (0119-CC-M-11)

Quick (n = 3)

“Well, it was like—it wasn’t hard clicking them. Like it was fast.” (0121-CC-M-12)

Response options (n = 3)

“The options that they gave were really—um, wide enough for you to really answer precisely.” (0108-CC-M-51)

Personalised (n = 3)

“Uh, I liked that it was personalised for me—it made me feel kind of important about taking care of myself.” (0108-CC-M-51)

Prefer phone to paper (n = 3)

“Like that it was in a phone and not in—not in a piece of paper.” (0111-CC-M-12)

Flow between items (n = 2)

“I liked the fact that everything was next. You had to roll into everything next—it was not necessary to have to go back.” (0106-CC-F-53)

Illustrations (n = 2)

“I could see how they could—show the picture, you know, kind of, too was helpful—to figure out what they were asking.” (0104-CC-F-50)

Alarms (n = 2)

“What did you like about it?” “And the alarm was really helpful.” (0209-CC-F-16)

Fun (n = 2)

“It was fun—because um, I got to answer like, questions and I got to go on the device like, every morning and afternoon—it made me fun like answering all these questions.” (0126-CC-F-7)