Figure 2.

Reversed engineered (blue curve) vs. current study (green curve).

Notes: The survival distribution curve of the current study against each of the external controls: (A) Liu et al (Adapted by permission from the American Association for Cancer Research: Liu M, He Z, Zhang C, et al. Prevalence, incidence, clearance, and associated factors of genital human papillomavirus infection among men: a population-based cohort study in rural China. Cancer Epidemiol Biomarkers Prev. 2014;23(12):2857–28659), (B) Moscicki et al (Moscicki AB, Ma Y, Farhat S, et al. Natural history of anal human papillomavirus infection in heterosexual women and risks associated with persistence. Clin Infect Dis. 2014;58(6):804–811, by permission of Oxford University Press19), (C) Munoz et al (Adapted by permission from Macmillan Publishers Ltd: British Journal of Cancer http://www.nature.com/bjc/index.html. Munoz N, Hernandez-Suarez G, Mendez F, et al. Persistence of HPV infection and risk of high-grade cervical intraepithelial neoplasia in a cohort of Colombian women. Br J Cancer. 2009;100(7):1184–1190, copyright 2009.20), (D) Rosa et al (Adapted from Am J Obstet Gynecol, 199(617), Rosa MI, Fachel JM, Rosa DD, Medeiros LR, Igansi CN, Bozzetti MC. Persistence and clearance of human papillomavirus infection: a prospective cohort study, e1–e7, Copyright (2008), with permission from Elsevier21), and (E) Franco et al (Franco EL, Villa LL, Sobrinho JP, et al. Epidemiology of acquisition and clearance of cervical human papillomavirus infection in women from a high-risk area for cervical cancer. J Infect Dis. 1999;180(5):1415–1423, by permission of Oxford University Press5).

Abbreviation: HPV, human papillomavirus.