Table 1.

Interview questions and measures

Category	Question
	Child’s Vaccination History
Vaccination Schedule	How did you know when to vaccinate your child? How do you know that your child received all his/her vaccines?
	HPV Knowledge & Status
HPV Knowledge	How did you hear about the HPV vaccine? What would you say to your friend if she asked, “What is the HPV vaccine and who is it for?
Child HPV vaccine status	Are your children ages 11–18 vaccinate with the HPV vaccine? At what age did he/she get vaccinated? Did he/she get all 3 shots?
	Physician Recommendation
Discussion with the physician about the HPV vaccine	How did you hear about the HPV vaccine? When did the doctor mention the vaccine? What did the doctor say about the vaccine? What questions did you ask your doctor regarding the vaccine? How old was your child when the doctor mentioned the vaccine?
HPV vaccine recommendation	Did your doctor recommend the HPV vaccine for your child?
Motivators & Barriers to Vaccinating Child with HPV Vaccine
Vaccinating child(ren) with HPV vaccine	May I ask why you chose to vaccinate your child with the HPV vaccine?
Not vaccinating child(ren) with HPV vaccine	May I ask why you chose not to vaccinate your child with the HPV vaccine?