Table.

Concept	Theme	Exemplar Quotes
HPV Vaccine Awareness
	Aware (n=12)	“I’ve heard of it but I haven’t gotten a lot of literature about it.” “Yes. Can't wait for it to come to my clinics.”
	Does not know much (n=6)	“I might have heard something about it, but I am not terribly familiar with it.” “I have [heard of HPV9], but honestly I don’t know that much about it.”
	Unaware (n=8)	“No. But honestly I don’t even know what the current one is.” “I don’t think I’ve heard about anything new regarding any sort of HPV vaccine.”
	Heard a Rumor (n=2)	“Vaguely, yes, I’ve heard rumors”
HCP Questions
	Efficacy (n=7)	“Just as long as it’s equally efficacious and I believe it is.”
	Side Effects (n=6)	“Just the adverse side effects for my patients and making sure that they’re knowledgeable about it.”
	Additional Protection (n=5)	“How much more coverage do you get against all the different types of HPV that cause cervical cancer?”
	Dosing Schedule (n=5)	“Do you have any idea what the recommended dosing schedule for that one is; is it also three vaccinations?”
	Cost (n=5)	“I'm waiting to see the degree at which cost will impact its availability, so whether that's going to affect our ability to stock it in clinic or whether patients will have the differential coverage for it from their insurers based on whether they're getting the Quadrivalent or Nanovalent.”
	General Information (n=5)	“I just want to look at that information myself. I just haven’t done it yet.” “I don’t feel like I know a lot about it right now, so I think that would be the main thing is just getting informed about it.”
	Safety (n=4)	“I guess with vaccines you always --as a provider when you’re counseling people on it, you want to make sure you know about safety, side effects, everything.”
Anticipated parent/patient questions
	Parents will not have questions (n=11)	“No I don’t think so. I think that they trust in me so that if recommend a vaccine that they know that it is something that their child needs.”
	No more than HPV4 questions (n=4)	R: “I don’t know that the 9-valent will have any more questions by parents.” INT: “As opposed…as compared to the quadrivalent?” R: “Yes.”
		“I don't think it's going to bring up any new questions because it's not a totally new vaccine. It's the same vaccine, just more parts to it because nothing really happened when we switched from 7 to 13 on the pneumococcal. Nobody questions it.”
	Lack of scientific understanding (n=3)	“No. I think for my clinic population I would say no. That’s just based on other vaccine modifications that haven’t spurred any increase in questions about the strains. I got a lot more questions about Thimerosal and whether that’s included versus like the actual, what’s included in the vaccine from a scientific standpoint, if that makes any sense.”
Anticipated Questions
	Side Effects (n=9)	“If there’s any side-effects to worry about. That’s usually the biggest one.”
	Safety (n=3)	“I think parents are more concerned about safety than they are even about efficacy and what it prevents and how helpful it is.”
	Effectiveness (n=3)	“I think they’d have the same questions [as the physician], like does it --how well does it work and what are the side effects, how safe is it?”
	Necessity of Vaccination (n=5)	“They’ll want to know about how—some of them will ask how long has it been given? Is it necessary? Is it better? Is it—that kind of thing.”
	Long-term Data (n=4)	“Probably the same in regards to what would happen if they take this vaccination and potentially what would happen in the next five years after receiving it.”