Patient Adherence to Three Dose Completion of the Quadrivalent Human Papillomavirus (HPV) Vaccine in a Private Practice

The human papillomavirus quadrivalent (types 6, 11, 16, and 18) recombinant vaccine is effective in preventing cervical, vulvar, vaginal and anal cancer. Maximal protection is achieved with completion of all three recommended doses. A retrospective chart review was performed to (1) assess the current vaccine series completion rates in a private practice multispecialty suburban setting and (2) identify factors associated with failure to complete the vaccine series. Chi-square and independent samples t test were used for data analysis. A total of 4,117 patients out of 10,821 eligible patients received at least one dose of the HPV vaccine between October 1, 2006 and April 30, 2010. Overall, 69.5?% (n?=?2,863) of patients who received one dose of the HPV vaccine completed all three doses in a valid time frame, representing 26.5?% of all eligible patients. Patients who completed the series were younger (16.8 vs. 18.2, p?p?p?