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Cervical determinants of anal HPV infection and high-grade anal lesions in women: a collaborative pooled analysis.

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2019-06-13

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Lin, Chunqing
Slama, Jiri
Gonzalez, Paula
Goodman, Marc T
Xia, Ningshao
Kreimer, Aimée R
Wu, Ting
Hessol, Nancy A
Shvetsov, Yurii
Ortiz, Ana P

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Cervical cancer screening might contribute to the prevention of anal cancer in women. We aimed to investigate if routine cervical cancer screening results-namely high-risk human papillomavirus (HPV) infection and cytohistopathology-predict anal HPV16 infection, anal high-grade squamous intraepithelial lesions (HSIL) and, hence, anal cancer. We did a systematic review of MEDLINE, Embase, and the Cochrane library for studies of cervical determinants of anal HPV and HSIL published up to Aug 31, 2018. We centrally reanalysed individual-level data from 13 427 women with paired cervical and anal samples from 36 studies. We compared anal high-risk HPV prevalence by HIV status, cervical high-risk HPV, cervical cytohistopathology, age, and their combinations, using prevalence ratios (PR) and 95% CIs. Among 3255 women with anal cytohistopathology results, PRs were similarly calculated for all anal HSIL and HPV16-positive anal HSIL. Cervical and anal HPV infections were highly correlated. In HIV-negative women, anal HPV16 prevalence was 41% (447/1097) in cervical HPV16-positive versus 2% (214/8663) in cervical HPV16-negative women (PR 16·5, 95% CI 14·2-19·2, p HPV-based cervical cancer screening programmes might help to stratify anal cancer risk, irrespective of HIV status. For targeted secondary anal cancer prevention in high-risk groups, HIV-negative women with cervical HPV16, especially those older than 45 years, have a similar anal cancer risk profile to that of HIV-positive women. International Agency for Research on Cancer.

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Anus Neoplasms
Early Detection of Cancer
Female
Global Health
HIV Seropositivity
Human papillomavirus 16
Humans
Papillomavirus Infections
Prevalence
Uterine Cervical Neoplasms

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