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Chlamydia trachomatis infection and persistence of human papillomavirus

Chlamydia trachomatis infection and persistence of human papillomavirus Human papillomavirus (HPV) persistence is the major cause of cervical cancer, but most HPV infections will not persist and risk factors for HPV persistence are not well known. Chlamydia (C.) trachomatis infection seems to also be associated with cervical cancer. We investigated whether C. trachomatis infection is a risk factor for HPV persistence. In a cohort of 12,527 women participating in a population‐based HPV screening trial in Sweden, 6,418 women completed testing for HPV DNA by general primer PCR and typing by reverse dot blot hybridization. On average 19 months later, 303 women that had been HPV‐positive and had normal cytology at enrollment completed a new HPV test. Environmental exposures were assessed by an 87‐item questionnaire. Previous sexually transmitted infections were also investigated by serology. At follow‐up, 44% of the women were positive for the same type of HPV DNA as at enrollment. Persistence correlated with length of follow‐up (p < 0.01) and condom use seemed to protect against HPV persistence (p < 0.05). The most significant risk factor for persistent presence of HPV DNA was self‐reported history of previous C. trachomatis infection (relative risk in multivariate model = 2.09; 95% confidence interval = 1.05–4.18). We conclude that persistence of oncogenic HPV infections is more likely among women with a previous C. trachomatis infection. © 2005 Wiley‐Liss, Inc. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png International Journal of Cancer Wiley

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References (32)

Publisher
Wiley
Copyright
Copyright © 2005 Wiley Subscription Services
ISSN
0020-7136
eISSN
1097-0215
DOI
10.1002/ijc.20970
pmid
15756673
Publisher site
See Article on Publisher Site

Abstract

Human papillomavirus (HPV) persistence is the major cause of cervical cancer, but most HPV infections will not persist and risk factors for HPV persistence are not well known. Chlamydia (C.) trachomatis infection seems to also be associated with cervical cancer. We investigated whether C. trachomatis infection is a risk factor for HPV persistence. In a cohort of 12,527 women participating in a population‐based HPV screening trial in Sweden, 6,418 women completed testing for HPV DNA by general primer PCR and typing by reverse dot blot hybridization. On average 19 months later, 303 women that had been HPV‐positive and had normal cytology at enrollment completed a new HPV test. Environmental exposures were assessed by an 87‐item questionnaire. Previous sexually transmitted infections were also investigated by serology. At follow‐up, 44% of the women were positive for the same type of HPV DNA as at enrollment. Persistence correlated with length of follow‐up (p < 0.01) and condom use seemed to protect against HPV persistence (p < 0.05). The most significant risk factor for persistent presence of HPV DNA was self‐reported history of previous C. trachomatis infection (relative risk in multivariate model = 2.09; 95% confidence interval = 1.05–4.18). We conclude that persistence of oncogenic HPV infections is more likely among women with a previous C. trachomatis infection. © 2005 Wiley‐Liss, Inc.

Journal

International Journal of CancerWiley

Published: Jan 10, 2005

Keywords: ; ; ;

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