Author manuscripts have been peer reviewed and accepted for publication but have not yet been edited. Copyright © 2010 American Association for Cancer Research Title: Behavioral/Lifestyle and Immunological Factors Associated with HPV Infection Among Women Older than 45 Years of Age Authors: Paula Gonzalez 1 , Allan Hildesheim 2 , Ana Cecilia Rodríguez 1 , Mark Schiffman 2 , Carolina Porras 1 , Sholom Wacholder 2 , Alfonso García-Piñeres 3 , Ligia A. Pinto 4 , Robert D. Burk 5 , Rolando Herrero 1 Affiliations: 1 Proyecto Epidemiológico Guanacaste, Fundación INCIENSA, Liberia, Costa Rica 2 Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA 3 Escuela de Química, Universidad de Costa Rica, San José, Costa Rica 4 HPV Immunology Laboratory, Science Applications International Corporation – Frederick, Inc./National Cancer Institute, Frederick, MD, USA 5 Albert Einstein School of Medicine, New York, NY, USA Running title: Factors Associated with HPV Among Women Older than 45 Key words: HPV infection, older women, immune response, sexual behavior, cervical cancer. Foot notes : We thank the women who participated in this study. We would also like to thank Elmer Perez, Rafael Thompson, Marisela Villegas and Roberto Monge for the field effort in conducting the older women study visit. The Guanacaste cohort (design and conduct of the study, sample collection, management, analysis and interpretation of the data) for the enrollment, follow-up and additional visit was funded by the National Cancer Institute, National Institutes of Health under multiple contracts (N01-CP21081, N01- Published OnlineFirst on October 15, 2010 as 10.1158/1055-9965.EPI-10-0645 on March 22, 2016. © 2010 American Association for Cancer Research. cebp.aacrjournals.org Downloaded from Author manuscripts have been peer reviewed and accepted for publication but have not yet been edited. Author Manuscript Published OnlineFirst on October 15, 2010; DOI: 10.1158/1055-9965.EPI-10-0645