Table 2. Characteristics of Study Patients
CharacteristicsPrompted Cohort (n = 5994)Unprompted Cohort (n = 9027)P Value
Age (years)<.001
    9–183304 (55.1)4585 (50.8)
    19–262690 (44.9)4442 (49.2)
    Mean (SD)17.8 (4.3)18.5 (4.8)<.001
Race<.001
    White4026 (67.2)1437 (15.9)
    African American1101 (18.4)2957 (32.8)
    Other769 (12.9)1643 (18.2)
    Missing98 (1.6)2990 (33.1)
HPV vaccine<.001
    03899 (65.0)7103 (78.7)
    1456 (7.6)832 (9.2)
    2431 (7.2)588 (6.5)
    31199 (20.0)492 (5.5)
    >39 (0.2)12 (0.1)
  • HPV, human papillomavirus; SD, standard deviation.