Table 3.

Key Themes and Exemplary Quotes of Impact of TExT-MED FANS

Theme	Quotes from Interview Participants
Positive regard for the TExT-MED FANS intervention	“I think it [TExT-MED+FANS] is very good. To motivate people. For example, the people, the messages that you send. They are good, as long as the people who receive them read them. Because it's no longer up to you. It depends on the people that receive them.”
Desire to be healthy and honor responsibilities	“I always knew that back in my mind, but didn't come forth… One of the last few texts that you guys sent, that, uh, you also wanna be there around your family. You know, your loved ones … I remember that. And I go, ‘yeah, that's the reason why I'm doing it.’”
Improved communication and emotional support	“I thank you very much for this, the messages, because that's how my husband would communicate with me. Let me tell you, he and I did not have a good relationship. But now, he is my support.” (Translated from Spanish)
	“I think emotionally closer we became. Sometimes we would receive a text that would say, ‘tell them how much you appreciate them.’ And then, sometimes, you know, when I'm random and I just go up and I told her like why I love her and it makes her feel good about herself. Cause sometimes she goes in a state of like depression. I noticed that I'm like, whoa. Don't worry, it'll get better. I just try to tell her positive things to help her out, emotionally. I'm not really good at like expressing how I feel. So I think reminders, the text messages, help me.”
Desire for more personalization	“I'm taking [medications] on a regular basis, the times where I should take them. Not just, forget in the morning. Examples like texting [medication reminders] at nine o'clock. For me, that's late. So, if I forgot because it was late. Nine o'clock is late for me. Nine o'clock is my break time.”
Change in supporters' health behaviors	“You have someone that is receiving the same information that you are and that it's making, even making the other person a little bit more self conscious about their own health.”
	“[A Challenge] Message would say, ‘don't eat bread or sweets or carbohydrates’ or something like that, and ‘tell the person that you are doing the same thing’… it makes you conscious of your own diet and how screwed up it is, you know? Like that you really don't, if you're not being forced to actually take a look at what you're putting in your mouth you really don't really think about it.”