Correlates of human papillomavirus vaccine series completion among young adult female initiators.

Incomplete human papillomavirus (HPV) vaccination is a public health concern. The objective of this study was to examine the correlates of vaccine series completion among 18-26 year old US women using the Behavioral Risk Factor Surveillance System (BRFSS) data. Using BRFSS data collected during 2008-2010, we conducted multivariable logistic regression analysis to examine the correlates of HPV vaccine completion among HPV vaccine initiators. Among 656 women (18-26 years old) who initiated the HPV vaccine, the overall weighted vaccine series completion rate was 60.7%. It was 32.9%, 65.3%, and 69.9% in 2008, 2009, and 2010, respectively. Black and Hispanic women were less likely to complete the series compared with white women. Higher income, having a college degree and completion of the study in a more recent year were associated with higher completion rates. Thus, the reasons for HPV series non-completion may be multifactorial. Interventions targeting 18-26 year old female vaccine initiators with low income and education, and minority backgrounds may improve HPV vaccine series completion.