From: Human papillomavirus infection and cervical dysplasia in female sex workers in Northeast China: an observational study
Age (years)
N
HPV prevalence
≤20
21
61.90Â %*
21–30
81
41.98Â %
31–40
112
41.07Â %
41–50
88
52.27Â %
>51
7
85.71Â %*