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  • Title: Attribution of human papillomavirus types to cervical intraepithelial neoplasia and invasive cancers in Southern China.
    Author: Chan PK, Cheung TH, Li WH, Yu MY, Chan MY, Yim SF, Ho WC, Yeung AC, Ho KM, Ng HK.
    Journal: Int J Cancer; 2012 Aug 01; 131(3):692-705. PubMed ID: 21976212.
    Abstract:
    The attribution of individual human papillomavirus (HPV) types to cervical neoplasia, especially intraepithelial lesions, varies ethnogeographically. Population-specific data are required for vaccine cost-effectiveness assessment and type replacement monitoring. HPV was detected from 2,790 Chinese women (444 invasive cervical cancers [ICC], 772 cervical intraepithelial neoplasia [CIN] grade 3, 805 CIN2 and 769 CIN1. The attribution of each HPV type found in multiple-type infections was approximated by the fractional contribution approach. Multiple-type infection was common and correlated inversely with lesion severity (54.7% for CIN1, 48.7% for CIN2, 46.2% for CIN3, 27.5% for ICC). Vaccine-covered high-risk types (HPV16/18) attributed to 59.5% of squamous cell carcinoma, 78.6% of adenocarcinoma, 35.9% of CIN3, 18.4% of CIN2 and 7.4% of CIN1. Distinct features compared to worldwide were a higher attribution of HPV52 and HPV58, and a much lower attribution of HPV45. Inclusion of HPV52 and HPV58 in future vaccines would provide the highest marginal increase in coverage with 11.7% for squamous cell carcinoma, 14.4% for CIN3, 22.6% for CIN2 and 17.7% for CIN1. The attribution of HPV types in southern China is different from elsewhere, which should be considered in prioritizing HPV types for vaccine and screening assay development.
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