Fig. 5From: HPV vaccination leads to decrease of anogenital warts and precancerous lesions of the cervix uteri in young women with low vaccination rates: a retrospective cohort analysisKaplan–Meier estimates of survival function referring to time until diagnosis of precancerous cervical lesions. Analyses include carcinoma in situ. Females aged 9 to 28 (birth years 1990–1999) years were included. The following variables were considered: A vaccination status, B vaccination status and type of vaccine administered, and C) vaccination status and prescription of contraceptive before vaccinationBack to article page