New cheaper human papilloma virus mass screening strategy reduces cervical cancer incidence in Changsha city: A clinical trial

Figure 2 Characteristics of human papillomavirus infection in Changsha city. A: The stacked bar charts show the incidence of infection at different ages. The abscissa indicates the age, the left ordinate indicates the number of people in the bar, and the right ordinate indicates the infection rate of the line; B: The percentage bar chart shows infection at different ages; C: The stacked bar charts show the incidence of cancer at different ages. The data were calculated and sorted by Excel. CIN: Cervical intraepithelial neoplasia.