Figure 3.
Comparison of the proportion of cervical cytologic abnormalities (atypical squamous cells of undetermined significance, a low-grade squamous intraepithelial lesion [SIL], a high-grade SIL [HSIL], or atypical squamous cells, cannot rule out HSIL) detected that were positive for quadrivalent human papillomavirus (HPV) vaccine types (HPV6/11/16/18) and high-risk HPV types (31/33/35/39/45/51/52/56/58/59/66/68) among women tested before HPV vaccination (dark blue bars) and ≥6 months after completing the 3-dose vaccine regimen (light blue bars). *P < .01, **P < .001, and ***P < .0001, by the 2-tailed χ2 test for proportions. This figure is available in black and white in print and in color online.