Table 4.

Phase Two: Example Quotes Denoting Differences within each Overarching Theme for Older Black and Latino Adults.

	Older Black Adults	Older Latinos
Theme One: Knowledge Limitations	“No, because I don’t know if I wanna know. You know, if I’m not having any problems, and at my age, I don’t think I wanna know, uh, that something is getting ready to happen, and you can’t do nothing about it. Like, you know, I wouldn’t wanna have brain surgery at my age, so, uh—"	“Well, I’m under the impression that it’s a whole-body scan. Um, but nobody—I never really questioned it. I have, um, a relative that has cancer.”
Theme Two: Requirements for Consent	“I would have to know, uh, what—I would have to know more about what a PET scan is, and-and I would have to know what-what it does. And I would have to know what, um, what was the out—what would be the outcome, what are the risks, are there any risks in terms of your health, um, regarding taking the, um, brain PET scan. Um, and what are your goals, or why are you taking it. I mean, why would you be taking it. I would like to know that.”	“Well, not only—you know, I would like to know the immediate, you know, risk factors in terms of if it’s found- what contrast, if it’s the same kind of contrast that’s used with a CT scan. And, you know, um, I would wanna know if, you know, in the—if people, who have had brain PET scans, have had any ill after it. You know? Any bad side effects after completion of the-the brain scan.”
Theme Three: Motivators for Participation	“Yeah. I’d like to know. Um, there are things that I—that bothers me that I would like to know that once that PET scan is done that it would, uh, help me better understand my own brain. Or if there was something that might be lurkin’ somewhere in the brain that might be going to happen to me in the future, uh, I would like to, say, get ahead of it possibly with this scan.”	“I don’t—no, I don’t need-I-I don’t need anything in return. I mean, just as a study of, you know, to help, uh, the future.”
Theme Four: Social Networks	“I would, hopefully, be able to speak to somebody’s in the medical field, one, or certainly if there’s someone who’s also had a—who have had this, um, PET, uh, uh, PET scan, uh, what did they think about it, um. And I guess I would like to—I would have to do some research on my own. I would like to kn—I would like to know more about the PET scan itself.”	“I’m always eager to participate in a study that I know is not going to hurt me, you know, and only because my mother had Alzheimer’s, you know, she’s about this age, at my age now. And it’s just something I want to keep up with, and if I could do it for free, that would be great because you know how Medicare is nowadays.”