{'fraction_non_alphanumeric': 0.03164942178940962, 'fraction_numerical': 0.018867924528301886, 'mean_word_length': 5.134328358208955, 'pattern_counts': {'":': 0, '<': 1, '<?xml version=': 0, '>': 1, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Factors Associated With Completion of the Human Papillomavirus Vaccine Series

and administration of the first dose of the vaccine between January 1, 2007, and July 1, 2007. Charts were reviewed until November 26, 2008, for a minimum 17 months of follow-up. Completion was defined as receipt of 3 HPV vaccinations. Charts were reviewed for age, race/ethnicity, type of insurance (private vs Medicaid/Child Health Insurance Program [CHIP]), and distance from home to the clinic. Sexual history variables included sexual activity status prior to initiation of the series and history within 3 years of vaccine initiation of a gynecological exam and/or Papanicolaou (Pap) test, HPV DNA test, or sexually transmitted infection. The reason for each visit was classified as nonsick visit (well child, well woman, contraception), sick visit, or vaccine only. If the patient did not complete the series, the chart was reviewed to determine if the patient had any clinic visits after she was due for her next shot. Statistical analyses were performed using SPSS, version 12.0, with an α level of <.05 determining statistical significance. Missing data did not exceed 2% for any of the predictor variables with the exception of sexual activity status for which 27% were missing. Only Caucasian, African American, or Hispanic patients were included in analyses assessing race/ ethnicity, as these 3 groups comprised >98% of the sample. Bivariate relationships between patient characteristics and vaccine series completion were conducted. Variables that were significant were entered into a logistic regression analysis using backward stepwise elimination.