Table 4.

Barriers and facilitators of a chatbot for hypertension medication self-management

	Representative selected quotes
Themes for barriers
Cell phone issues	“I can go to MyChart, but I normally do that on the big computer. It’s just kind of aggravating on my smartphone. I don’t know how that [chatbot] might be.” (P7)
Too much information or not useful information	“It just felt like it was annoying, had too much information, and I didn’t want look at it cause it’s too many things to go through…” (P11) “To open the computer or iPad to get additional health information would be unnecessary because I’m pretty conscientious with my medicine.” (P13)
Making demands	“It’s either going to be a good conversation with the chatbot or it could get a little lippy if I put some weight on, in which we would reduce the chatbot usage to once a week.” (P4) “Telling me, ‘Don’t eat that burrito. There’s too much salt.’…I don’t want to go to my iPhone to ask if I can eat my burrito.” (P1)
Invasion of privacy	“I’m not going see a message on my TV that [says] ‘Did you take your medicine?’ or Alexa’s not going to tell me, ‘You better check your phone.’ I get creeped out when technology is intrusive.” (P10) “I have one of those Google speakers at home. I unplug it when I’m home because sometimes I’ve had a conversation and it picks it up. The next thing you know I’m getting advertisements…as long as it wasn’t intrusive like that.” (P14)
Themes for facilitators
Customizability	“If you could check some boxes of things you like and don’t want…You could check: I want tips daily, weekly, monthly, no tips, or I want reminders every day for checking my blood pressure.” (P11) “I imagine she will pop up on my phone and say ‘Take your meds,’ ‘It's time for a refill,’ or ‘You don't have refills left’…There should be some flexibility in scheduling it like there is with your calendar.” (P8)
Convenience	“I think it’d be helpful with managing my health…It’d be nice to have it all in one place on my phone to use it whenever needed.” (P10) “It’s more like a health coach instead of me waiting for somebody to call me…I miss the call, call back, and then I have to go through many things to get to the person. I think that would be a little bit more helpful because I’m not trying to run someone down.” (P6)
Unobtrusiveness	“I prefer things to be as minimal and as automatic as possible…That’d be great if it’s streamlined and invisible.” (P1) “I would be interested in some kind of way of recording stuff as long as it wasn’t so time consuming.” (P9)