77,716
Participants
Start Date
February 21, 2017
Primary Completion Date
March 15, 2019
Study Completion Date
July 31, 2020
Vaccine Reminder/Recall
The investigators will be sending recall notices via phone call or postcard to 11-17 year olds or 11-14 year olds who are eligible but lacking HPV vaccine doses recorded in the Colorado Immunization Information System (CIIS). The investigators will be testing the effectiveness and cost effectiveness of up to 3 notices per dose with usual care (no intervention) for bringing children 11-17 years old up to date on HPV vaccination. They will also be testing the effectiveness and cost effectiveness of using mail vs. phone call reminder notices (as compared to no intervention) for bringing 11-14 year olds up to date on HPV vaccination.
University of Colorado, Aurora
University of California, Los Angeles
OTHER
National Cancer Institute (NCI)
NIH
University of Colorado, Denver
OTHER