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. 2022 Jan 25;10(2):188. doi: 10.3390/vaccines10020188

Figure 1.

Figure 1

Changes in HPV16/18 prevalence among unvaccinated women with CIN1 or CIN2–3/AIS, by age group. Year-on-year trend of HPV16/18 prevalence among unvaccinated women with CIN1 (A) and CIN2–3/AIS (B) are shown for four age groups (20–24 years [red], 25–29 years [blue], 30–34 years [green] and 35–39 years [black]). Year-on-year trends of HPV16/18 prevalence (dotted lines) and estimated prevalence trends (solid lines) among unvaccinated women with CIN1 (C) and CIN2–3/AIS (D) are shown for two age groups (20–24 years [red] and ≥25 years [green]). HPV, human papillomavirus; CIN, cervical intraepithelial neoplasia; AIS, adenocarcinoma in situ.